2017A&A...599A..14J


Query : 2017A&A...599A..14J

2017A&A...599A..14J - Astronomy and Astrophysics, volume 599A, 14-14 (2017/3-1)

Multiplicity and clustering in Taurus star-forming region. I. Unexpected ultra-wide pairs of high-order multiplicity in Taurus.

JONCOUR I., DUCHENE G. and MORAUX E.

Abstract (from CDS):

Aims. This work analyses the spatial distribution of stars in Taurus with a specific focus on multiple stars and wide pairs in order to derive new constraints on star formation and early dynamical evolution scenarios.
Methods. We collected the multiplicity data of stars in Taurus to build an up-to-date stellar/multiplicity catalog. We first present a general study of nearest-neighbor statistics on spatial random distribution, comparing its analytical distribution and moments to those obtained from Monte Carlo samplings. We introduce the one-point correlation Ψ function to complement the pair correlation function and define the spatial regimes departing from randomness in Taurus. We then perform a set of statistical studies to characterize the binary regime that prevails in Taurus.
Results. The Ψ function in Taurus has a scale-free trend with a similar exponent as the correlation function at small scale. It extends almost 3 decades up to ∼60kAU showing a potential extended wide binary regime. This was hidden in the correlation function due to the clustering pattern blending. Distinguishing two stellar populations, single stars versus multiple systems (separation ≤1kAU), within Class II/III stars observed at high angular resolution, we highlight a major spatial neighborhood difference between the two populations using nearest-neighbor statistics. The multiple systems are three times more likely to have a distant companion within 10kAU when compared to single stars. We show that this is due to the presence of most probable physical ultra-wide pairs (UWPs, defined as such from their mutual nearest neighbor property), that are themselves generally composed of multiple systems containing up to five stars altogether. More generally, our work highlights; 1) a new large population of candidate UWPs in Taurus within the range 1-60kAU in Taurus and 2) the major local structural role they play up to 60kAU. There are three different types of UWPs; either composed of two tight and comparatively massive stars (MM), by one single and one multiple (SM), or by two distant low-mass singles (SS) stars. These UWPs are biased towards high multiplicity and higher-stellar-mass components at shorter separations. The multiplicity fraction per ultra-wide pair with separation less than 10kAU may be as high as 83.5±19.6%.
Conclusions. We suggest that these young pre-main sequence UWPs may be pristine imprints of their spatial configuration at birth resulting from a cascade fragmentation scenario of the natal molecular core. They could be the older counterparts, at least for those separated by less than 10kAU, to the ≤0.5Myr prestellar cores/Class 0 multiple objects observed at radio/millimeter wavelengths.

Abstract Copyright: © ESO, 2017

Journal keyword(s): open clusters and associations: individual: Taurus - stars: variables: T Tauri, Herbig Ae/Be - binaries: general - binaries: visual - methods: data analysis - stars: statistics - stars: statistics

VizieR on-line data: <Available at CDS (J/A+A/599/A14): tablec1.dat tablec2.dat refs.dat>

Simbad objects: 346

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Number of rows : 346
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NAME Tuc Moving Group MGr 00 00 -64.0           ~ 68 0
2 2MASS J04034930+2610520 TT* 04 03 49.308 +26 10 52.03   15.99 14.52     M3.9 63 0
3 2MASS J04034997+2620382 Y*O 04 03 49.9804621990 +26 20 38.212411926           M6.3 17 0
4 2MASS J04035084+2610531 TT* 04 03 50.8393021714 +26 10 53.015575434   15.57 14.17     M2.8 52 0
5 2MASS J04043936+2158186 TT* 04 04 39.3724734118 +21 58 18.564536279   16.54 14.97     M3.4 59 0
6 2MASS J04043984+2158215 TT* 04 04 39.8534209118 +21 58 21.474760489   16.61 15.09     M3.2 50 0
7 IRAS 04016+2610 Y*O 04 04 43.07064 +26 18 56.3904           ~ 240 0
8 2MASS J04053087+2151106 TT* 04 05 30.8840553626 +21 51 10.621687163   16.04 14.67     M2.7 54 0
9 [L67] Taurus 1 reg 04 08 +25.5           ~ 2 0
10 2MASS J04080782+2807280 TT* 04 08 07.8348781716 +28 07 28.180526482           ~ 18 0
11 V* V1095 Tau TT* 04 13 14.1550545701 +28 19 10.670834057   15.32 13.81 13.62   M4 99 0
12 V* V1096 Tau TT* 04 13 27.2226142854 +28 16 24.653683705   15.42 13.53 13.07   M0 73 0
13 NAME IRAS 04108+2803A Y*O 04 13 53.2804501826 +28 11 23.219708445           M5.5 29 0
14 NAME IRAS 04108+2803B Y*O 04 13 54.71688 +28 11 32.8992           K0-M3 37 0
15 IRAS 04108+2910 TT* 04 13 57.3761988548 +29 18 19.350926076   15.17       M0e 39 0
16 2MASS J04141188+2811535 Y*O 04 14 11.8823284464 +28 11 53.410193839 18.72         M6e 49 0
17 IRAS F04110+2800 Y*O 04 14 12.28944 +28 08 37.1724           ~ 25 0
18 HD 283447 Or* 04 14 12.9232870093 +28 12 12.378540314 13.17 12.07 10.68 9.45 8.67 K3Ve 388 0
19 V* FM Tau Or* 04 14 13.5839505100 +28 12 49.166941548 14.44   13.80 13.64   M0/2e 198 0
20 V* FN Tau Or* 04 14 14.5943659839 +28 27 58.063377983     14.70 13.68   M5 146 0
21 V* CW Tau Or* 04 14 17.0041128798 +28 10 57.765657757 13.92 13.64 12.36 12.86   K0Ve 326 0
22 [BCG93] 1 TT* 04 14 17.6094853639 +28 06 09.650035718 18.04         M4.5 78 0
23 [BHS98] MHO 2 TT* 04 14 26.4022247808 +28 05 59.640852985           M2.5 42 1
24 NAME IRAS 04114+2757G TT* 04 14 30.5533533766 +28 05 14.599582233           M2.2 49 0
25 V* FP Tau Or* 04 14 47.3027404423 +26 46 26.414740336 17.21 16.14 15.02     M4Ve 151 0
26 2MASS J04144739+2803055 TT* 04 14 47.3957737522 +28 03 05.520023676           M5.2 20 0
27 V* CX Tau Or* 04 14 47.8612023028 +26 48 11.013547235 16.48 15.93 14.50     M1.5Ve 162 0
28 V* V1098 Tau Or* 04 14 47.9897419517 +27 52 34.232647358   14.08 11.73 10.95   M1 108 0
29 V* FO Tau Or* 04 14 49.2797479571 +28 12 30.461592529       14.92   M3.5e+M3.5e 115 0
30 UCAC4 591-011866 TT* 04 14 52.310472 +28 05 59.69616 19.87         M3.1 24 0
31 [BCG93] 2 TT* 04 15 05.1566689290 +28 08 46.055640665           M5.5 42 0
32 [BLH2002] KPNO-Tau 1 LM* 04 15 14.7224038902 +28 00 09.386264531     24.063     M8.5Ve 38 0
33 2MASS J04152409+2910434 TT* 04 15 24.1017606897 +29 10 43.514652084           M7 21 0
34 2MASS J04153916+2818586 TT* 04 15 39.1636081840 +28 18 58.529065125           M4.0 29 0
35 IRAS 04125+2902 TT* 04 15 42.7868524357 +29 09 59.826220836 19.191 17.442 15.487 13.954 12.418 M0 37 0
36 2MASS J04155799+2746175 TT* 04 15 58.0007626956 +27 46 17.335519842           M5.2 28 0
37 2MASS J04161210+2756385 Y*O 04 16 12.1078014228 +27 56 38.490676886           M5e 28 0
38 2MASS J04161885+2752155 TT* 04 16 18.8592740928 +27 52 15.375920546           M8.0 22 0
39 2MASS J04162725+2053091 TT* 04 16 27.2443046456 +20 53 09.244527467   18.6   16.8 14.9 M5 24 0
40 EM* LkCa 4 Or* 04 16 28.1070192558 +28 07 35.732032828   13.96 12.78 11.825   K7:Ve 158 0
41 2MASS J04163048+3037053 Y*O 04 16 30.4843806967 +30 37 05.306271580           M4.5e 16 0
42 2MASS J04163911+2858491 TT* 04 16 39.1285707950 +28 58 49.312410914           M7.3 28 0
43 V* CY Tau Or* 04 17 33.7281514373 +28 20 46.809969664 14.52 14.68 13.40 12.59   M1.5 242 0
44 V* V1312 Tau TT* 04 17 38.9462203679 +28 33 00.570855332   15.57 13.26 13.12   M2 91 0
45 [BLH2002] KPNO-Tau 10 Y*O 04 17 49.5566788466 +28 13 31.770397307     17.8     M5Ve 38 0
46 IRAS F04147+2822 TT* 04 17 49.6578079496 +28 29 36.325239443           M3.7 65 0
47 [SS94] V410 X-ray 3 TT* 04 18 07.9726935315 +28 26 03.673508581     18.319     M6 65 0
48 V* V409 Tau Or* 04 18 10.7828823429 +25 19 57.378794100   15.00 13.34 12.88   K8 46 0
49 2MASS J04181710+2828419 TT* 04 18 17.1091861192 +28 28 41.921033525     22.175     M6.4 77 0
50 2MASS J04182147+1658470 TT* 04 18 21.4747288784 +16 58 46.997648983   14.37 13.26     K5 50 0
51 2MASS J04182909+2826191 Y*O 04 18 29.09760 +28 26 19.1148           ~ 30 0
52 [BLH2002] KPNO-Tau 11 TT* 04 18 30.3021433493 +27 43 20.649706760           M5.5Ve 34 0
53 V* V410 Tau Or* 04 18 31.1083261392 +28 27 16.155411536   12.13 10.75 8.45 9.408 K3Ve 438 0
54 V* DD Tau Or* 04 18 31.1271804823 +28 16 29.158626278 15.94 15.49 14.10 13.76   M3.5e+M3.5e 181 0
55 V* CZ Tau Or* 04 18 31.5906879009 +28 16 58.161795569 15.96 16.60 15.70 14.77   M2 132 0
56 IRAS 04154+2823 Y*O 04 18 32.0460600618 +28 31 14.990027099           M2.5 60 0
57 2MASS J04183444+2830302 Y*O 04 18 34.44696 +28 30 30.2256           M0 41 0
58 2MASS J04184023+2824245 TT* 04 18 40.2358778388 +28 24 24.075268613           ~ 32 0
59 V* V892 Tau Ae* 04 18 40.6120892867 +28 19 15.641672501   16.6 14.69 14.35   A0Ve 273 0
60 LR 1 Y*O 04 18 41.33232 +28 27 25.0092           K7 36 0
61 [SS94] V410 X-ray 7 TT* 04 18 42.4993698860 +28 18 49.913254563       18.02 15.42 ~ 37 0
62 V* V1023 Tau Or* 04 18 47.0296109602 +28 20 07.490327496   14.31 12.00 11.21   K7 149 0
63 [BLH2002] KPNO-Tau 2 LM* 04 18 51.1522243376 +28 14 33.296824693     21.376     M7.5Ve 39 0
64 NAME CoKu Tau 1 Y*O 04 18 51.4865838204 +28 20 26.105713878     19.3     K7+M 79 0
65 V* V1069 Tau Or* 04 18 51.7034617249 +17 23 16.579842927   13.32 12.22 12.22 10.944 K7e 113 0
66 IRAS 04158+2805 Y*O 04 18 58.1407377664 +28 12 23.347645825           M5.25 91 0
67 2MASS J04190110+2819420 TT* 04 19 01.1041061433 +28 19 42.084605479           M5.9 58 0
68 [BLH2002] KPNO-Tau 12 Y*O 04 19 01.2808784328 +28 02 48.145982297     23.228     M9Ve 51 0
69 2MASS J04190197+2822332 TT* 04 19 01.9773489612 +28 22 33.268594450           M5.5 39 0
70 V* FQ Tau Or* 04 19 12.812616 +28 29 32.98128       15.00   M3 101 0
71 V* BP Tau Or* 04 19 15.8342975037 +29 06 26.929456808   13.13 12.12 11.89   K5/7Ve 621 0
72 WK81 1 TT* 04 19 26.2671630797 +28 26 14.259129092   14.81 13.04 12.240   K7 200 1
73 V* FR Tau Or* 04 19 35.4554578118 +28 27 21.884434456       16.22   M5.3 49 0
74 V* V1070 Tau Or* 04 19 41.2688488305 +27 49 48.151086734   13.75 12.25 11.14   M0 137 0
75 IRAS 04166+2708 Y*O 04 19 41.48112 +27 16 07.0176           ~ 23 0
76 IRAS 04166+2706 Y*O 04 19 42.62736 +27 13 38.4312           ~ 119 0
77 2MASS J04194657+2712552 Y*O 04 19 46.57464 +27 12 55.2096           M7.5 20 0
78 IRAS 04169+2702 Y*O 04 19 58.44936 +27 09 57.0672           K0-M4 108 1
79 2MASS J04201611+2821325 Y*O 04 20 16.1148199241 +28 21 32.516002397           M8.3 24 0
80 2MASS J04202144+2813491 Y*O 04 20 21.44280 +28 13 49.1736           M1 27 0
81 2MASS J04202555+2700355 Y*O 04 20 25.5568397008 +27 00 35.548947507           M5e 29 0
82 IRAS 04173+2812 Y*O 04 20 25.8347704556 +28 19 23.808836572           M4 23 0
83 IRAS 04171+2756 TT* 04 20 26.0663617504 +28 04 09.051269368           M2 30 0
84 USNO-B1.0 1172-00072216 TT* 04 20 39.1897448659 +27 17 31.780775140           M4.5V 25 0
85 Cl* Melotte 25 LH 206 TT* 04 20 52.7379320789 +17 46 41.548103310   18.14 16.47     M4.6 32 0
86 [MDM2001] CFHT-BD-Tau 19 Y*O 04 21 07.9716728277 +27 02 20.095089359           M5IVe 34 0
87 UCAC4 590-012183 Y*O 04 21 09.339192 +27 50 36.35916           M4 19 0
88 NAME IRAS 04181+2654B Y*O 04 21 10.38840 +27 01 37.2576           K5-M4 23 0
89 IRAS 04181+2654 Y*O 04 21 11.46888 +27 01 09.4044           G0-M3 60 0
90 2MASS J04213459+2701388 Y*O 04 21 34.5936907712 +27 01 38.717671105           M5.5e 30 0
91 2MASS J04214013+2814224 Y*O 04 21 40.1446982529 +28 14 22.563973161           ~ 18 0
92 IRAS 04187+1927 TT* 04 21 43.2354501406 +19 34 13.310019222       15.41   M2.4 44 0
93 [MDM2001] CFHT-BD-Tau 10 LM* 04 21 46.3104454321 +26 59 29.396088687           M6IVe 30 0
94 2MASS J04215450+2652315 TT* 04 21 54.5256903324 +26 52 31.353073628           M8.5 27 0
95 V* DE Tau Or* 04 21 55.6346296353 +27 55 06.184221341 15.18 15.13 13.80     M3Ve 231 0
96 V* RY Tau Or* 04 21 57.4132838427 +28 26 35.533990877 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 667 1
97 HD 283572 Or* 04 21 58.8482823933 +28 18 06.511915195   9.80 9.03 9.14   G5IVe 272 0
98 V* T Tau TT* 04 21 59.4323326335 +19 32 06.439974179   11.22 10.12 9.80   K0IV/Ve 1346 1
99 IRAS 04191+1523 Y*O 04 22 00.43944 +15 30 21.2148           ~ 193 0
100 2MASS J04220069+2657324 Y*O 04 22 00.69744 +26 57 32.4864           ~ 32 0
101 V* FS Tau Or* 04 22 02.1925017485 +26 57 30.331063489 17.57   14.10 15.63   M3.5e+M0e 265 0
102 EM* LkCa 21 Or* 04 22 03.1462377202 +28 25 39.099044680   10.94       M3/4Ve 79 0
103 2MASS J04221332+1934392 TT* 04 22 13.3188304814 +19 34 39.263053602           M8.5 24 0
104 2MASS J04221568+2657060 TT* 04 22 15.7021243617 +26 57 05.913982473 20.98 20.2   17.1   M0.7 25 0
105 2MASS J04221644+2549118 LM* 04 22 16.4374053783 +25 49 11.813862323           M8IVe 23 0
106 IRAS F04192+2647 TT* 04 22 16.7670021430 +26 54 57.171796087 18.78 18.9 17.8     M1IVe 41 0
107 2MASS J04222404+2646258 Y*O 04 22 24.0464274687 +26 46 25.962577924           ~ 21 0
108 IRAS F04196+2638 Y*O 04 22 47.8813228251 +26 45 52.869183618           M1 30 0
109 2MASS J04230607+2801194 Y*O 04 23 06.0802612915 +28 01 19.554193348           M6 29 0
110 IRAS 04200+2759 Y*O 04 23 07.7759705887 +28 05 57.471848305           M2 36 0
111 2MASS J04231822+2641156 Y*O 04 23 18.2522439548 +26 41 15.300872037           M3.5 26 0
112 V* FU Tau Or* 04 23 35.3912144972 +25 03 02.741853087           M7.25 60 0
113 V* FT Tau Or* 04 23 39.1894939930 +24 56 14.248383831   16.15 14.93 14.70   M2.8 122 0
114 2MASS J04242090+2630511 Y*O 04 24 20.8977757596 +26 30 51.064923798           M6.5 27 0
115 [MDM2001] CFHT-BD-Tau 9 LM* 04 24 26.4612148911 +26 49 50.250899575         15.35 M6IVe 34 0
116 IRAS 04216+2603 TT* 04 24 44.5796963763 +26 10 14.110985431           M1:Ve 46 0
117 2MASS J04244506+2701447 TT* 04 24 45.0653700817 +27 01 44.771273395     16.24     M5e 30 0
118 V* IP Tau Or* 04 24 57.0823478325 +27 11 56.543062579   14.50   12.46   M0:Ve 201 0
119 [HJS91] 4872 TT* 04 25 17.6698859307 +26 17 50.429311147   15.66 13.77 13.67   K9e 43 0
120 [BLH2002] KPNO-Tau 3 LM* 04 26 29.3901723833 +26 24 13.722007135     20.239     M6Ve 45 0
121 2MASS J04263055+2443558 BD* 04 26 30.5575174268 +24 43 55.835559684           L0.6 24 0
122 V* FV Tau Or* 04 26 53.5415038432 +26 06 53.942994170 19.58     15.26   K5 128 2
123 CoKu FV Tau c TT* 04 26 54.4012605412 +26 06 50.942995443 20.35   16.70     M3.5e+M2.5e 62 0
124 IRAS 04239+2436 Y*O 04 26 56.29704 +24 43 35.3280           ~ 150 0
125 [BLH2002] KPNO-Tau 13 TT* 04 26 57.3162958061 +26 06 28.340060968           M5Ve 38 0
126 2MASS J04270266+2605304 Y*O 04 27 02.66593 +26 05 30.3790           ~ 136 0
127 V* DF Tau Or* 04 27 02.7917481241 +25 42 22.456361256 11.97 12.25 11.42 10.31 9.14 M3Ve 469 1
128 V* DG Tau Or* 04 27 04.6913654419 +26 06 16.041555299 13.57 13.97 10.50 12.28   K6Ve 967 1
129 2MASS J04270739+2215037 Y*O 04 27 07.4040234806 +22 15 03.756285211       17.7 15.4 M6.75 19 0
130 LDN 1543 DNe 04 27.4 +18 52           ~ 12 0
131 [BLH2002] KPNO-Tau 4 BD* 04 27 27.9997171623 +26 12 05.097974406     24.722 20.54 18.75 L0 66 0
132 2MASS J04274538+2357243 BD* 04 27 45.3878215999 +23 57 24.417294735         17.94 M8IVe 26 0
133 IRAS 04248+2612 Y*O 04 27 57.30696 +26 19 18.3036           M 146 0
134 WISE J042838.78+265134.6 Y*O 04 28 38.78544 +26 51 34.6824           ~ 46 0
135 2MASS J04284263+2714039 Y*O 04 28 42.63480 +27 14 03.9084           M5e 30 0
136 2MASS J04290068+2755033 TT* 04 29 00.6843498970 +27 55 03.298881009           M8.8 29 0
137 IRAS 04260+2642 Y*O 04 29 04.9905794928 +26 49 06.897053333           K6 51 0
138 [HJS91] 507 TT* 04 29 20.7028522671 +26 33 40.435127204 17.35   14.58     M4 40 0
139 IRAS F04262+2654 Y*O 04 29 21.6613024117 +27 01 25.528751719           M5.9 41 0
140 V* GV Tau TT* 04 29 23.7314759229 +24 33 00.216016292 19.20         K7 277 2
141 V* FW Tau Or* 04 29 29.703744 +26 16 53.06412       15.85   M5.5 124 0
142 IRAS 04264+2433 Y*O 04 29 30.08016 +24 39 55.0548   18.40   16.73 14.67 ~ 39 0
143 2MASS J04293209+2430597 Y*O 04 29 32.09544 +24 30 59.7528           ~ 13 0
144 2MASS J04293606+2435556 Y*O 04 29 36.0648501244 +24 35 55.582277615 20.47         M3 33 0
145 V* DH Tau Or* 04 29 41.5520056304 +26 32 58.123761109 15.14 14.62 13.10 13.01   M1Ve 277 0
146 V* DI Tau Or* 04 29 42.4736177473 +26 32 49.119618729 16.39 15.20 13.60     M0Ve 200 0
147 [BLH2002] KPNO-Tau 5 LM* 04 29 45.6733565875 +26 30 46.559502443     19.690 19.10 15.08 M7.5Ve 50 0
148 V* IQ Tau Or* 04 29 51.5569553814 +26 06 44.854858369 15.43   13.80 12.28 11.11 M0.5 210 0
149 2MASS J04295422+1754041 TT* 04 29 54.2253182308 +17 54 03.880323145           M4 16 0
150 2MASS J04295950+2433078 TT* 04 29 59.5081451509 +24 33 07.687799554     16.31 17.9 15.7 M5.5 42 0
151 V* UX Tau A TT* 04 30 03.9931880444 +18 13 49.476948664   12.92 11.15     K2Ve 334 0
152 [BLH2002] KPNO-Tau 6 BD* 04 30 07.2484355471 +26 08 20.698295788     22.292 20.56 17.90 M8.5Ve 52 0
153 2MASS J04302365+2359129 LM* 04 30 23.6516358028 +23 59 12.991548656         17.91 M9.9 28 0
154 V* FX Tau Or* 04 30 29.618064 +24 26 45.02724   15.18 13.61 13.21   M4 146 0
155 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 305 0
156 Bad 16 Y*O 04 30 50.2775823865 +23 00 08.771252817       14.95   F1 136 0
157 V* ZZ Tau Or* 04 30 51.3868605371 +24 42 22.331917434     12.90 13.97   M2.5V+M3.5V 132 0
158 NAME ZZ Tau IRS TT* 04 30 51.7198337523 +24 41 47.604184059     17.1     M5IVe 43 0
159 [BLH2002] KPNO-Tau 7 LM* 04 30 57.2037457394 +25 56 39.560007407     22.068   17.16 M8Ve 48 0
160 V* V1320 Tau TT* 04 31 14.4390253358 +27 10 17.921049955   14.33 12.689 11.75 10.844 M1 45 0
161 VSS XI-2 TT* 04 31 15.7846772782 +18 20 07.068277320     15.72     M4.25 43 0
162 2MASS J04311907+2335047 TT* 04 31 19.0749924642 +23 35 04.799712711       20.3 17.5 M8 26 0
163 EM* LkHA 331 TT* 04 31 23.814648 +24 10 52.98312   16.30 14.73 14.98   M4.5V 98 0
164 2MASS J04312405+1800215 TT* 04 31 24.0575671088 +18 00 21.455153686   20.38 18.678   14.32 M7 65 0
165 2MASS J04312669+2703188 BD* 04 31 26.6898772881 +27 03 18.809763277         17.90 M7IVe 25 0
166 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 823 0
167 EM* LkHA 358 TT* 04 31 36.1396524070 +18 13 43.176961457     19.0     M0.9 89 0
168 V* V1213 Tau Or* 04 31 37.47192 +18 12 24.4800           K7 533 0
169 V* HL Tau Or* 04 31 38.471952 +18 13 58.08504   15.89 14.49 14.39   K5 1280 0
170 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 419 1
171 2MASS J04314444+1808315 Y*O 04 31 44.44680 +18 08 31.5384           ~ 156 0
172 V* HK Tau Or* 04 31 50.5722969258 +24 24 17.775488652 16.81   15.10     M0.5 305 1
173 V* V710 Tau B TT* 04 31 57.7916444904 +18 21 37.947621353   15.07 13.55 13.98   M0.5/1e 52 0
174 2MASS J04315844+2543299 TT* 04 31 58.4512764298 +25 43 30.018429763     15.96     M4.9 38 0
175 2MASS J04315968+1821305 Y*O 04 31 59.6887305235 +18 21 30.360630046           ~ 16 0
176 2MASS J04320329+2528078 TT* 04 32 03.2929760993 +25 28 07.783546888           M7.6 26 0
177 L 1551-51 Or* 04 32 09.2838548075 +17 57 22.695083303   13.29       K7e 121 0
178 V* V827 Tau TT* 04 32 14.5731257511 +18 20 14.719337994   14.00 12.63 12.35   K7Ve 160 0
179 Haro 6-13 Or* 04 32 15.4177438039 +24 28 59.580866027 19.22   17.7     M0 193 1
180 V* V826 Tau TT* 04 32 15.8394065935 +18 01 38.751126168   13.51 12.074   10.312 K7.0 167 0
181 2MASS J04321606+1812464 TT* 04 32 16.0655428266 +18 12 46.383508261   19.20 17.595     M6.5 74 0
182 2MASS J04321786+2422149 TT* 04 32 17.8722821712 +24 22 14.906649942     18.2 16.63 14.12 M6.5 39 0
183 V* V928 Tau Or* 04 32 18.8839760967 +24 22 26.713747659 17.65   13.7     M0.5 85 0
184 2MASS J04322210+1827426 TT* 04 32 22.1106070891 +18 27 42.648224021           M5.0 46 0
185 2MASS J04322329+2403013 TT* 04 32 23.3105661797 +24 03 01.465743295           M8.9 26 0
186 2MASS J04322415+2251083 Y*O 04 32 24.1578864585 +22 51 08.315029052           M4.5 25 0
187 2MASS J04322627+1827521 TT* 04 32 26.2778233566 +18 27 52.149741588           M5.3 29 0
188 [RRN96] GG Tau Bb TT* 04 32 30.28224 +17 31 30.3024           M6+M7.5 76 1
189 V* GG Tau Or* 04 32 30.3318954228 +17 31 40.834888327 14.84 14.78 13.40 11.54   M0e+M2.0e 678 1
190 V* FY Tau Or* 04 32 30.5786392247 +24 19 57.364725369 17.83 18.05 13.49 14.17   M0.1 103 0
191 V* FZ Tau Or* 04 32 31.7629319321 +24 20 03.057541003 16.15     15.04   M0 125 0
192 IRAS 04295+2251 Y*O 04 32 32.05488 +22 57 26.6724           K0-M4 89 0
193 V* UZ Tau A TT* 04 32 43.0744163742 +25 52 31.022242441       13.15   M2.0e+M3.0e 96 0
194 V* V1076 Tau Or* 04 32 43.7360056323 +18 02 56.310753348   14.72       K7 86 0
195 JH 112 TT* 04 32 49.1170509526 +22 53 02.847321133 18.81     14.982   K5.5 61 0
196 2MASS J04325026+2422115 Y*O 04 32 50.2665216453 +24 22 11.670257724         18.79 M7.5 34 0
197 2MASS J04325119+1730092 Y*O 04 32 51.2023156073 +17 30 09.218423762     22.58     M9 26 0
198 2MASS J04330197+2421000 TT* 04 33 01.9723467772 +24 21 00.071577295     17.951     M7.1 38 0
199 V* GH Tau Or* 04 33 06.2181025969 +24 09 33.628411049     13.20 12.59   M3Ve 174 0
200 V* V807 Tau Or* 04 33 06.6303920517 +24 09 55.044051684   12.10 11.21 11.18   K7 136 2
201 [BLH2002] KPNO-Tau 14 Y*O 04 33 07.8106353614 +26 16 06.562720873     20.735     M6Ve 33 0
202 2MASS J04330945+2246487 LM* 04 33 09.4629919840 +22 46 48.623660040         16.26 M7.0 35 0
203 V* V830 Tau TT* 04 33 10.0299730541 +24 33 43.255853678   13.91 12.08 11.30   M0-1 187 1
204 IRAS S04301+2608 Y*O 04 33 14.3602980976 +26 14 23.494786529           M0 34 0
205 IRAS 04302+2247 Y*O 04 33 16.50096 +22 53 20.4000           ~ 149 0
206 IRAS 04303+2240 Y*O 04 33 19.0746339919 +22 46 34.185095127           M0.5 68 0
207 2MASS J04332621+2245293 Y*O 04 33 26.2194659501 +22 45 29.261293460           ~ 21 0
208 2MASS J04333278+1800436 Y*O 04 33 32.8073411253 +18 00 43.603236075           ~ 16 0
209 HD 28867 Y*O 04 33 33.0491533 +18 01 00.189284   7.030 7.013     B9IVn 99 0
210 V* GI Tau Or* 04 33 34.0608378045 +24 21 17.067391746 14.34   13.70 12.15 11.06 K5Ve 262 1
211 V* GK Tau Or* 04 33 34.5626781676 +24 21 05.854541262 15.50   13.00 12.02 10.62 K7:Ve 282 0
212 V* IS Tau Or* 04 33 36.7943820957 +26 09 49.071437296 18.52     14.79   M2.0 118 0
213 V* DL Tau Or* 04 33 39.0766866461 +25 20 38.097973550 14.04 14.59 13.40 11.85 10.89 K7Ve 301 0
214 2MASS J04333905+2227207 Y*O 04 33 39.0770702387 +22 27 20.454021031           M1.75 27 0
215 V* HN Tau Or* 04 33 39.3612389736 +17 51 52.302839814   14.76 13.40 13.05   K5e 231 0
216 Cl* Melotte 25 LH 48 Y*O 04 33 41.7272738400 +17 50 40.140884516   18.09 16.33 16.51   M5.1 20 0
217 2MASS J04334291+2526470 BD* 04 33 42.9227698549 +25 26 46.843807910           L0.1 25 0
218 2MASS J04334465+2615005 TT* 04 33 44.6603141468 +26 15 00.429276341           M5.2 33 0
219 V* DM Tau Or* 04 33 48.7335659850 +18 10 09.974471722 14.30 14.82 14.00     M2Ve 550 0
220 V* CI Tau Or* 04 33 52.0144455735 +22 50 30.093741884 14.97 15.09 13.80     K4IVe 293 1
221 2MASS J04335245+2612548 Y*O 04 33 52.4693431346 +26 12 54.503198748           M8.5 22 0
222 2MASS J04335252+2256269 TT* 04 33 52.52256 +22 56 26.9052 19.12         M5.5 21 0
223 V* IT Tau ** 04 33 54.70128 +26 13 27.5232   16.76 14.63     K6.0 91 0
224 UCAC4 544-009632 TT* 04 33 55.477344 +18 38 39.02712   16.42 14.85 14.61   M3.7 23 0
225 2MASS J04341099+2251445 TT* 04 34 10.9942832092 +22 51 44.397944183     15.19     M1.5 43 0
226 2MASS J04341527+2250309 Y*O 04 34 15.2773856137 +22 50 30.804533445     23.427     M7 42 0
227 V* V1077 Tau Or* 04 34 18.0134345949 +18 30 06.335688396   13.70       G8 76 0
228 2MASS J04344544+2308027 Y*O 04 34 45.4450303959 +23 08 02.676900439   20.2   18.2 16.0 M5.25 20 0
229 V* AA Tau Or* 04 34 55.4222683130 +24 28 53.038273587 13.14 13.34 12.20     K5Ve 660 0
230 2MASS J04345693+2258358 Y*O 04 34 56.9314303216 +22 58 35.725668342           ~ 19 0
231 2MASS J04350850+2311398 Y*O 04 35 08.5146057314 +23 11 39.891959581     18.4   14.88 M7IVe 29 0
232 V* HO Tau Or* 04 35 20.2103777721 +22 32 14.557063236     15.20     M0.5 115 0
233 V* FF Tau Or* 04 35 20.9049286667 +22 54 24.234895403 17.57 15.73       K7 74 1
234 GSC 01270-00355 TT* 04 35 24.5038529437 +17 51 42.495480359   15.680 14.030 13.310   M1.5 50 2
235 V* DN Tau Or* 04 35 27.3776240781 +24 14 58.908761629 13.56 12.88 11.50 11.79   M1:Ve 358 0
236 [HCA99] C Y*O 04 35 35.36184 +24 08 26.6280           ~ 18 0
237 IRAS 04325+2402 Y*O 04 35 35.39160 +24 08 19.4244           ~ 153 0
238 NAME CoKu Tau 3 TT* 04 35 40.937952 +24 11 08.49012 20.58         M4.3 94 0
239 [BLH2002] KPNO-Tau 8 Y*O 04 35 41.8388746981 +22 34 11.595178814 20.64   19.261     M6Ve 38 0
240 2MASS J04354203+2252226 Y*O 04 35 42.0358847234 +22 52 22.612316901           ~ 24 0
241 2MASS J04354526+2737130 BD* 04 35 45.2742517434 +27 37 13.118928456           L0.9 23 0
242 V* HQ Tau Or* 04 35 47.3327991214 +22 50 21.639107658 15.01 14.15 12.02 11.18   K0 85 0
243 [BLH2002] KPNO-Tau 15 Y*O 04 35 51.0969566842 +22 52 40.063846807 19.75         M3Ve 27 0
244 [BLH2002] KPNO-Tau 9 LM* 04 35 51.4277984148 +22 49 11.868048124     24.918   18.76 M8.5V 39 0
245 CoKu HP Tau G1 Y*O 04 35 52.0934845554 +22 55 03.999241281           ~ 23 1
246 V* HP Tau Or* 04 35 52.7821592361 +22 54 23.158368128 17.39 14.9 14.90     K2-5e 198 1
247 2MASS J04355286+2250585 Y*O 04 35 52.8675537778 +22 50 58.509168770 20.06         ~ 22 0
248 CoKu HP Tau G3 TT* 04 35 53.4991854163 +22 54 09.000431829 18.21   14.8     M0.6 61 0
249 CoKu HP Tau G2 Or* 04 35 54.1553246504 +22 54 13.404170652 13.63 12.31 11.158 10.14 9.172 G2e 118 0
250 Haro 6-28 Or* 04 35 56.8652987075 +22 54 35.826437972 18.94         M3.1 88 0
251 ATO J068.9955+22.6430 TT* 04 35 58.9312418215 +22 38 35.253982319 15.37         K7.0 23 0
252 2MASS J04361030+2159364 TT* 04 36 10.3043328287 +21 59 36.475545597           M8.5 23 0
253 2MASS J04361038+2259560 Y*O 04 36 10.3838421343 +22 59 56.003013804     22.520   16.81 M8Ve 49 0
254 V* V1115 Tau TT* 04 36 19.1014976181 +25 42 58.999936422   12.97 11.76 10.81 10.228 M0 82 0
255 2MASS J04362151+2351165 TT* 04 36 21.5141674244 +23 51 16.628935305           M5.25 21 0
256 2MASS J04363893+2258119 Y*O 04 36 38.9288541165 +22 58 11.845890661     21.654   16.88 M7.75 47 0
257 2MASS J04373705+2331080 BD* 04 37 37.05048 +23 31 08.0688           L1.5 19 0
258 ITG 1 Y*O 04 37 56.7155247270 +25 46 22.844223609           ~ 20 0
259 ITG 2 Y*O 04 38 00.8675100119 +25 58 57.275767004       20.21 14.71 M7e 33 0
260 ITG 3 Y*O 04 38 14.8833303682 +26 11 39.971794234       20.33 17.84 M7e 54 0
261 2MASS J04381630+2326402 Y*O 04 38 16.2959142741 +23 26 40.247744289   17.7   16.2 14.3 M4.75 16 0
262 V* GM Tau Or* 04 38 21.3390129259 +26 09 13.784439336     17.577   15.04 M6.5 99 0
263 V* DO Tau Or* 04 38 28.5882167490 +26 10 49.472067634 12.78 13.44 12.30 13.01   M1Ve 330 1
264 V* HV Tau Or* 04 38 35.2903493114 +26 10 38.646251388           M1Ve 122 0
265 2MASS J04385859+2336351 Y*O 04 38 58.6016354598 +23 36 35.152047782   18.4   16.8 14.3 M4.25 26 0
266 2MASS J04385871+2323595 Y*O 04 38 58.7152023037 +23 23 59.475685114   19.1   17.5 15.3 M6.5 19 0
267 2MASS J04390163+2336029 TT* 04 39 01.6333473875 +23 36 02.959278320   16.7   15.2 12.8 M6 35 0
268 2MASS J04390396+2544264 Y*O 04 39 03.9603916514 +25 44 26.337817736       18.40 15.40 M7IVe 53 0
269 ATO J069.7719+23.6291 Y*O 04 39 05.2632949969 +23 37 44.747669054           K5 22 0
270 2MASS J04390637+2334179 Y*O 04 39 06.3785695449 +23 34 17.924677413   19.0   17.3 14.6 M7.5 21 0
271 IRAS 04361+2547 Y*O 04 39 13.89288 +25 53 20.8788           ~ 189 1
272 V* VY Tau Or* 04 39 17.4208176970 +22 47 53.361809753     9.00     M0Ve 183 0
273 EM* LkCa 15 Or* 04 39 17.7912813350 +22 21 03.387667491   13.01 12.03 11.61   K5:Ve 588 1
274 V* GN Tau Or* 04 39 20.922216 +25 45 02.02608 17.22     13.85   M2.5 87 0
275 2MASS J04393364+2359212 Y*O 04 39 33.6410819194 +23 59 21.219288849           M5 26 0
276 IRAS 04365+2535 Y*O 04 39 35.19360 +25 41 44.7252           ~ 252 0
277 IRAS F04366+2555 TT* 04 39 44.8805264309 +26 01 52.708767835           M5 32 0
278 ITG 17 Y*O 04 39 47.4820305505 +26 01 40.693626234     21.556   15.78 M7 87 0
279 IRAS 04368+2557 Y*O 04 39 53.97816 +26 03 09.6804           ~ 248 0
280 IRAS 0437+257P08 TT? 04 39 55.7451364657 +25 45 01.943057594           B5 162 1
281 2MASS J04400067+2358211 Y*O 04 40 00.6707992029 +23 58 21.084521376           M6 28 0
282 ITG 21 Y*O 04 40 01.74504 +25 56 29.2272           M6IVe 28 0
283 IRAS 04370+2559 Y*O 04 40 08.0044564423 +26 05 25.424058995           M 51 0
284 2MASS J04403979+2519061 Y*O 04 40 39.7866478727 +25 19 06.166523054           M5e 29 0
285 JH 223 TT* 04 40 49.5107760683 +25 51 18.966786927 18.25     15.09   M2.8 52 0
286 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3785 0
287 Haro 6-32 TT* 04 41 04.2538699152 +25 57 55.716168108           M5e 41 0
288 V* IW Tau Or* 04 41 04.7179844751 +24 51 06.034940625   14.25 12.595 11.65 10.504 K7Ve 109 0
289 ITG 33A TT* 04 41 08.2613426749 +25 56 07.368386155           M3 41 0
290 ITG 34 Y*O 04 41 10.7863139705 +25 55 11.540472769       19.28 16.43 M5.5e 42 0
291 IRAS 04381+2540 Y*O 04 41 12.67920 +25 46 35.4216           K0-M2 123 1
292 CoKu Tau-Aur Star 4 TT* 04 41 16.8106225314 +28 40 00.077173462   16.40 14.68 14.59   M1.5e 170 0
293 ITG 40 Y*O 04 41 24.64440 +25 43 53.0256           M3.5 25 0
294 Haro 6-33 TT* 04 41 38.8300758211 +25 56 26.681998749     18.40     M0.5 108 2
295 2MASS J04414489+2301513 LM* 04 41 44.8958526354 +23 01 51.407921287       20.6   M8.7 58 1
296 2MASS J04414565+2301580 TT* 04 41 45.6493974957 +23 01 58.016822466   16.67 15.20 14.87   M4.3 31 1
297 2MASS J04414825+2534304 Y*O 04 41 48.2522895943 +25 34 30.569106360         17.03 M8e 49 0
298 V* V999 Tau Or* 04 42 05.4896906880 +25 22 56.226737601 18.68 15.1 14.7     M0.6 76 0
299 V* V1000 Tau Or* 04 42 07.3316526430 +25 23 02.928347503 19.09 16.1 15.01     M2.5 74 0
300 EM* LkHA 332 Or* 04 42 07.7923691084 +25 23 11.820801806 17.90 16.51       K7+M2.5 145 1
301 2MASS J04422101+2520343 TT* 04 42 21.0213244177 +25 20 34.300467111 18.67         M5.1 50 0
302 V* DP Tau Or* 04 42 37.6996387891 +25 15 36.992730557 15.84 15.2 13.70 14.42   M0.8 159 1
303 V* GO Tau Or* 04 43 03.0761884276 +25 20 18.708294279   16.2 14.40     M2.3 167 0
304 Haro 6-36 TT* 04 43 20.2256964418 +29 40 06.053179629           M5.5 41 0
305 LDN 1507 MoC 04 43 32 +29 40.0           ~ 32 0
306 IRAS S04414+2506 BD* 04 44 27.1421731772 +25 12 16.439761677           M7e 66 0
307 HD 30171 TT* 04 45 51.2962628576 +15 55 49.633228798   10.12 9.36   8.439 G5 44 0
308 GSC 01267-00433 TT* 04 45 51.3513725858 +15 55 36.660221382   14.76 13.54     ~ 21 0
309 2MASS J04464260+2459034 TT* 04 46 42.6205354875 +24 59 03.304377140           M5.5 24 0
310 V* DQ Tau Or* 04 46 53.0577037389 +17 00 00.135310040 14.56 13.67 12.00 13.21   M1Ve 303 0
311 NAME Haro 6-37 A TT* 04 46 58.9704450853 +17 02 37.880094727       13.94   K7e 14 0
312 V* DR Tau Or* 04 47 06.2152696011 +16 58 42.814250257 12.03 11.86 10.50 12.19   K5Ve 488 0
313 V* DS Tau Or* 04 47 48.5954846337 +29 25 11.189809829 13.11 13.16 12.30 12.37 10.80 K4Ve 222 0
314 2MASS J04484189+1703374 TT* 04 48 41.8927784877 +17 03 37.254367108           M7.8 18 0
315 V* UY Aur Or* 04 51 47.3900418279 +30 47 13.552212742 12.82 12.96 11.90 10.59 9.52 M0e+M2.5e 336 0
316 IRAS 04489+3042 Y*O 04 52 06.6859847880 +30 47 17.016855701           M2 63 0
317 V* GM Aur Or* 04 55 10.9813656049 +30 21 59.375978047 14.59 13.351 12.242 11.798   K3Ve 573 0
318 2MASS J04552333+3027366 BD* 04 55 23.3302505842 +30 27 36.538498322           M6e 28 0
319 HD 282630 Or* 04 55 36.9698052301 +30 17 55.100440086   12.17 11.12 10.55   K0Ve 156 0
320 2MASS J04554046+3039057 Y*O 04 55 40.4630844567 +30 39 05.616572125           M5e 24 0
321 2MASS J04554535+3019389 TT* 04 55 45.3525363022 +30 19 38.861271006           M5e 28 0
322 V* AB Aur Ae* 04 55 45.8459978418 +30 33 04.293281305 7.20 7.16 7.05 6.96 6.70 A0Ve 968 2
323 2MASS J04554757+3028077 TT* 04 55 47.5774465268 +30 28 07.563998959           M5e 33 0
324 2MASS J04554820+3030160 Y*O 04 55 48.2029119174 +30 30 15.933175155           ~ 19 0
325 2MASS J04554969+3019400 Y*O 04 55 49.7005840969 +30 19 39.990267227           M6e 25 0
326 2MASS J04555288+3006523 Y*O 04 55 52.8963159285 +30 06 52.222859715           M5e 21 0
327 2MASS J04555605+3036209 TT* 04 55 56.0661543354 +30 36 20.447548655   16.6       M4.0 27 0
328 2MASS J04555636+3049374 Y*O 04 55 56.3658931689 +30 49 37.427515861           M5e 19 0
329 V* SU Aur Or* 04 55 59.3861369488 +30 34 01.499800471   10.33 9.30 9.17   G2IIIne 550 0
330 2MASS J04560118+3026348 Y*O 04 56 01.1885014040 +30 26 34.621847787           ~ 19 0
331 V* V397 Aur Or* 04 56 02.0261376554 +30 21 03.635056925   13.07 11.72 11.25   K7e 157 0
332 2MASS J04574903+3015195 Y*O 04 57 49.0192539270 +30 15 19.142767817           M9 25 0
333 HD 31648 Ae* 04 58 46.2654165113 +29 50 36.990341242 7.84 7.78 7.62 7.76 7.43 A5Vep 423 0
334 V* V836 Tau TT* 05 03 06.5988350466 +25 23 19.604482133   15.00 13.49 13.48   K7/M0Ve 214 0
335 2MASS J05044139+2509544 TT* 05 04 41.3974730845 +25 09 54.581861436           M3.7 39 0
336 IRAS 05022+2527 TT* 05 05 22.8193016043 +25 31 30.829690946   17.71 16.26     M4.6 47 0
337 2MASS J05061674+2446102 TT* 05 06 16.7521509473 +24 46 10.158429144           M3/5e 28 0
338 2MASS J05062332+2432199 TT* 05 06 23.3325973176 +24 32 19.923493583           M3/5e 38 0
339 2MASS J05064662+2104296 TT* 05 06 46.6272611026 +21 04 29.648198326   18.1   16.5 14.6 M5.25 18 0
340 ATO J076.8002+24.6211 TT* 05 07 12.0679346815 +24 37 16.368894440           K6 21 0
341 V* RW Aur TT* 05 07 49.5662483 +30 24 05.177426   10.86 9.60 9.95   K1/5e+K5e 735 0
342 2MASS J05075496+2500156 TT* 05 07 54.9656053105 +25 00 15.599361879           M3.7 39 0
343 NAME AB Dor Moving Group MGr 06 38 53.4 -42 50 04           ~ 405 0
344 NAME TW Hya Association As* 11 01.9 -34 42           ~ 863 0
345 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3227 1
346 NAME Gould Belt PoG ~ ~           ~ 774 1

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2021.10.17-00:06:52

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