1995A&A...297..391N

Query : 1995A&A...297..391N

1995A&A...297..391N - Astronomy and Astrophysics, volume 297, 391-417 (1995/5-2)

ROSAT survey observation of T Tauri stars in Taurus.

NEUHAEUSER R., STERZIK M.F., SCHMITT J.H.M.M., WICHMANN R. and KRAUTTER J.

Abstract (from CDS):

We study the X-ray emission of T Tauri stars (TTS) in Taurus-Auriga as observed with the spatially unbiased flux-limited ROSAT All-Sky Survey. Our detection rates are comparable with Einstein Observatory results: 43 out of 65 (66%) weak-line TTS (WTTS) and 9 out of 79 (11%) classical TTS (CTTS) exhibit X-ray emission above the ROSAT survey detection limit. Spectral fits give results consistent with Raymond-Smith spectra and emission temperatures of ∼1keV for both CTTS and WTTS. However, we find that CTTS and WTTS have significantly different X-ray luminosity functions, even when correcting luminosities for individual X-ray spectra (absorption and emission energy). Medians of X-ray luminosities log (LX/erg/sec) are 29.701±0.045 for WTTS and 29.091±0.032 for CTTS, all in 140pc distance. A strong correlation between X-ray surface flux and stellar rotation indicates that WTTS are intrinsically more X-ray active than CTTS because WTTS rotate faster. However, rotation is not the only parameter that determines X-ray activity, we find that X-ray luminosity is correlated with stellar mass, bolometric luminosity, effective temperature, and stellar age. Furthermore, X-ray emission of CTTS appears to be harder than that of WTTS.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - stars: late-type - stars: pre-main sequence - X-rays: stars

VizieR on-line data: <Available at CDS (J/A+A/297/391): table1 table2 table3 table4 table5 table6 tablea1>

CDS comments: IRAS 05023+2527 = IRAS 05022+2527

Simbad objects: 154

goto View the references in ADS

Number of rows : 154
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* V1224 Tau Or* 03 29 38.3694765312 +24 30 37.868047092   13.037 12.160   11.111 K1 64 0
2 NAME Per Region reg 03 37 00.0 +31 15 00           ~ 271 0
3 V* V679 Tau TT* 03 52 02.2372961328 +24 39 47.681148816   13.57 11.41 11.89 10.77 K5e 128 0
4 2MASS J03542950+3203013 TT* 03 54 29.5045395048 +32 03 01.408753080   12.71 11.85     G0 50 0
5 2MASS J03543597+2537081 TT* 03 54 35.9763003936 +25 37 08.172087816   13.59 12.67     K2 44 0
6 BD+21 577 PM* 04 02 53.5741692768 +22 08 11.681617596   9.46 8.89     G0 39 0
7 V* V1067 Tau A TT* 04 03 13.9548204864 +25 52 59.084503428           K3e 42 0
8 V* V1067 Tau Or* 04 03 13.959264 +25 52 59.65104   13.83 12.83 12.69   K3e+K3e 43 0
9 2MASS J04035084+2610531 TT* 04 03 50.8384989360 +26 10 53.016897864   15.57 14.17     M2.8 56 0
10 BD+21 584 TT* 04 04 28.4881556952 +21 56 04.542478332   10.04 9.58 9.56   F8 44 0
11 2MASS J04043936+2158186 TT* 04 04 39.3720326664 +21 58 18.557626944   16.54 14.97     M3.4 64 0
12 2MASS J04053087+2151106 TT* 04 05 30.8841528528 +21 51 10.621437048   16.04 14.67     M2.7 61 0
13 PP 13 Em* 04 10 41.09496 +38 07 54.3360           ~ 52 1
14 IRAS 04108+2803 mul 04 13 54.9 +28 11 31           ~ 91 1
15 HD 283447 Or* 04 14 12.9261150912 +28 12 12.359055168 13.17 12.07 10.68 9.45 8.67 K3Ve 417 0
16 V* FM Tau Or* 04 14 13.5841955640 +28 12 49.168982592 14.44   13.80 13.64   M0/2e 216 0
17 V* FN Tau TT* 04 14 14.5945463760 +28 27 58.067731188     14.70 13.68   M5e 162 0
18 V* CW Tau TT* 04 14 17.0042670144 +28 10 57.766508508 13.92 13.64 12.36 12.86   K0Ve 355 0
19 [BCG93] 1 TT* 04 14 17.6095515480 +28 06 09.654704388 18.04         M4.5 107 0
20 IRAS 04113+2758 ** 04 14 26.31 +28 06 04.5           ~ 62 0
21 V* FP Tau Or* 04 14 47.3033083488 +26 46 26.414391720 17.21 16.14 15.02     M4Ve 169 0
22 V* CX Tau Or* 04 14 47.8615248984 +26 48 11.014877916 16.48 15.93 14.50     M1.5Ve 185 0
23 V* V1098 Tau Or* 04 14 47.9897419517 +27 52 34.232647358   14.08 11.73 10.95   M1 115 0
24 V* FO Tau Or* 04 14 49.2843205392 +28 12 30.505096476       14.92   M3.5e+M3.5e 127 0
25 [BCG93] 2 TT* 04 15 05.1562986720 +28 08 46.055825016           M5.5 48 0
26 EM* LkCa 4 Or* 04 16 28.1067298272 +28 07 35.731363080   13.96 12.78 11.825   K7:Ve 187 0
27 V* CY Tau Or* 04 17 33.7284990744 +28 20 46.812121656 14.52 14.68 13.40 12.59   M1.5 270 0
28 V* V1312 Tau TT* 04 17 38.9450182296 +28 33 00.578450700   15.57 13.26 13.12   M2 104 0
29 IRAS F04147+2822 TT* 04 17 49.6577031384 +28 29 36.318234912           M3.7 78 0
30 2MASS J04182147+1658470 TT* 04 18 21.4751057736 +16 58 46.998204240   14.37 13.26     K5 54 0
31 V* V410 Tau Or* 04 18 31.1081296680 +28 27 16.155955728   12.13 10.75 8.45 9.408 K3Ve 462 0
32 V* DD Tau Or* 04 18 31.1289436392 +28 16 29.148496644 15.94 15.49 14.10 13.76   M3.5e+M3.5e 196 0
33 V* CZ Tau Or* 04 18 31.5898864272 +28 16 58.150241544 15.96 16.60 15.70 14.77   M2 142 0
34 V* V1023 Tau Or* 04 18 47.0291197872 +28 20 07.493080560   14.31 12.00 11.21   K7 161 0
35 V* V1069 Tau Or* 04 18 51.7036254480 +17 23 16.582694856   13.32 12.22 12.22 10.944 K7e 126 0
36 IRAS 04158+2805 Y*O 04 18 58.1336295120 +28 12 23.355499140           M5.25 105 0
37 V* FQ Tau Or* 04 19 12.812616 +28 29 32.98128       15.00   M3 113 0
38 V* BP Tau Or* 04 19 15.8339827632 +29 06 26.926959492   13.13 12.12 11.89   K5/7Ve 664 0
39 WK81 1 TT* 04 19 26.2675117776 +28 26 14.259575472   14.81 13.04 12.240   K7 225 1
40 V* V1070 Tau Or* 04 19 41.2688488305 +27 49 48.151086734   13.75 12.25 11.14   M0 152 0
41 IRAS 04166+2706 Y*O 04 19 42.62736 +27 13 38.4312           ~ 135 0
42 IRAS 04169+2702 Y*O 04 19 58.44936 +27 09 57.0672           K0-M4 117 1
43 IRAS 04181+2655 mul 04 21 10.9 +27 02 06           ~ 53 0
44 IRAS 04181+2654 Y*O 04 21 11.46888 +27 01 09.4044           G0-M3 63 0
45 IRAS 04187+1927 TT* 04 21 43.2345350808 +19 34 13.311438132       15.41   M2.4 60 0
46 V* DE Tau Or* 04 21 55.6347850824 +27 55 06.184016436 15.18 15.13 13.80     M3Ve 258 0
47 V* RY Tau Or* 04 21 57.4092550080 +28 26 35.555316612 10.82 10.34 9.30 9.67 8.87 K1IV/Ve 704 1
48 HD 283572 Or* 04 21 58.8484815456 +28 18 06.512641416   9.80 9.03 9.14   G5IVe 286 0
49 V* T Tau TT* 04 21 59.4319873992 +19 32 06.432393336   11.22 10.12 9.80   K0IV/Ve 1404 1
50 V* FS Tau Or* 04 22 02.1798627024 +26 57 30.575293308 17.57   14.10 15.63   M3.5e+M0e 281 0
51 EM* LkCa 21 Or* 04 22 03.1470550272 +28 25 39.096067656   10.94       M3/4Ve 90 0
52 V* FT Tau Or* 04 23 39.1888788312 +24 56 14.250818940   16.15 14.93 14.70   M2.8 143 0
53 HD 285751 TT* 04 23 41.3220021720 +15 37 54.899671728   12.42 11.56     K2V: 44 0
54 V* IP Tau Or* 04 24 57.0824018640 +27 11 56.539953888   14.50   12.46   M0:Ve 232 0
55 V* FV Tau Or* 04 26 53.5368775848 +26 06 54.276020136 19.58     15.26   K5 137 2
56 IRAS 04239+2436 Y*O 04 26 56.29704 +24 43 35.3280           ~ 155 0
57 V* DF Tau TT* 04 27 02.7932020080 +25 42 22.453341516 11.97 12.25 11.42 10.31 9.14 M3Ve 500 1
58 V* DG Tau Or* 04 27 04.6921275888 +26 06 16.060169268 13.57 13.97 10.50 12.28   K6Ve 1024 1
59 HD 285778 Or* 04 27 10.5694045464 +17 50 42.660831084   11.07 10.22     K1e 134 0
60 LDN 1521D DNe 04 27 46.5 +26 18 52           ~ 215 0
61 IRAS 04248+2612 Y*O 04 27 57.3239527944 +26 19 18.033264696           M 154 0
62 IRC +20082 OH* 04 29 07.6303239624 +24 43 50.048839668   20.57 17.37   10.45 M8III 74 0
63 V* GV Tau TT* 04 29 23.7314759229 +24 33 00.216016292 19.20         K7 283 0
64 V* FW Tau TT* 04 29 29.703744 +26 16 53.06412       15.85   M5.5 136 0
65 V* DH Tau Or* 04 29 41.5525353432 +26 32 58.126559604 15.14 14.62 13.10 13.01   M1Ve 302 0
66 V* DI Tau Or* 04 29 42.4723379736 +26 32 49.128692676 16.39 15.20 13.60     M0Ve 213 0
67 V* IQ Tau Or* 04 29 51.5569574040 +26 06 44.859710736 15.43   13.80 12.28 11.11 M0.5 240 0
68 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1357 0
69 UCAC4 627-017384 ** 04 30 01.136136 +35 17 24.58716   18.37 16.28 15.268 13.12 M0 23 0
70 V* UX Tau A TT* 04 30 03.9932216088 +18 13 49.469925504   12.92 11.15     K2Ve 356 0
71 V* UX Tau Or* 04 30 03.99626 +18 13 49.4355 11.23 11.84 10.80 9.83 9.05 K2Ve+M1Ve 355 0
72 HBC 391 Em* 04 30 19.1491163664 +35 17 45.441164328   15.30 13.43     K0: 16 0
73 V* FX Tau Or* 04 30 29.618064 +24 26 45.02724   15.18 13.61 13.21   M4 158 0
74 V* DK Tau A * 04 30 44.2408811328 +26 01 24.734232948           K5Ve 261 0
75 V* DK Tau Or* 04 30 44.243376 +26 01 24.65328 13.32 14.59 13.05 12.08   K7e+K7e 330 0
76 V* ZZ Tau Or* 04 30 51.3867375744 +24 42 22.335046020     12.90 13.97   M2.5V+M3.5V 149 0
77 V* V1320 Tau TT* 04 31 14.4389827248 +27 10 17.920846416   14.33 12.689 11.75 10.844 M1 59 0
78 EM* LkHA 331 TT* 04 31 23.814648 +24 10 52.98312   16.30 14.73 14.98   M4.5V 110 0
79 HBC 392 Or* 04 31 27.1761425664 +17 06 24.744279276   13.71       K5e 74 0
80 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 863 0
81 V* HL Tau Or* 04 31 38.5107609312 +18 13 57.859747968   15.89 14.49 14.39   K5 1424 0
82 IRAS 04287+1807 mul 04 31 38.8 +18 13 57           ~ 796 0
83 V* XZ Tau Or* 04 31 40.0868968022 +18 13 56.642439056     10.40 13.12   M2e+M2e 444 1
84 V* HK Tau TT* 04 31 50.5715875272 +24 24 17.775307548 16.81 16.689 15.292     M0.5 340 1
85 V* V710 Tau Y*O 04 31 57.79 +18 21 37.9           ~ 160 0
86 V* V710 Tau A TT* 04 31 57.8028713880 +18 21 34.732161936       13.87   M2/3e 169 0
87 V* V827 Tau TT* 04 32 14.5700738928 +18 20 14.771601168   14.00 12.63 12.35   K7Ve 173 0
88 Haro 6-13 Or* 04 32 15.4174258632 +24 28 59.577717108 19.22   17.7     M0 214 1
89 V* V826 Tau TT* 04 32 15.8393134800 +18 01 38.750623752   13.51 12.074   10.312 K7.0 175 0
90 V* V928 Tau Or* 04 32 18.8875357800 +24 22 26.686742088 17.65 15.978 14.101 13.704   M0.5 97 0
91 V* GG Tau Or* 04 32 30.3506925552 +17 31 40.494063144 14.84 14.78 13.40 11.54   M0e+M2.0e 736 1
92 V* FY Tau Or* 04 32 30.5784243120 +24 19 57.359889192 17.83 18.05 13.49 14.17   M0.1 120 0
93 V* FZ Tau Or* 04 32 31.7627107344 +24 20 03.056011548 16.15     15.04   M0 148 0
94 V* UZ Tau Y*O 04 32 42.81 +25 52 31.3           M4Ve+M1/3Ve 310 0
95 JH 112 TT* 04 32 49.1168400816 +22 53 02.847144336 18.81     14.982   K5.5 76 0
96 V* GH Tau Or* 04 33 06.2186830512 +24 09 33.584489856     13.20 12.59   M3Ve 190 0
97 V* V807 Tau Or* 04 33 06.6358574736 +24 09 54.977968116   12.10 11.21 11.18   K7 155 2
98 V* V830 Tau TT* 04 33 10.0300557048 +24 33 43.255480860   13.91 12.08 11.30   M0-1 213 1
99 IRAS 04303+2240 Y*O 04 33 19.0778932752 +22 46 34.130048412           M0.5 77 0
100 V* GI Tau Or* 04 33 34.0609697160 +24 21 17.068989852 14.34   13.70 12.15 11.06 K5Ve 286 1
101 V* GK Tau Or* 04 33 34.5630097872 +24 21 05.855136732 15.50   13.00 12.02 10.62 K7:Ve 308 0
102 V* IS Tau Or* 04 33 36.7923853128 +26 09 49.068086868 18.52     14.79   M2.0 133 0
103 V* DL Tau Or* 04 33 39.0767679288 +25 20 38.101382952 14.04 14.59 13.40 11.85 10.89 K7Ve 335 0
104 V* HN Tau Or* 04 33 39.3629421552 +17 51 52.289234280   14.76 13.40 13.05   K5e 255 0
105 V* DM Tau Or* 04 33 48.7336763736 +18 10 09.973460280 14.30 14.82 14.00     M2Ve 633 0
106 V* CI Tau Or* 04 33 52.0143963264 +22 50 30.094090908 14.97 15.09 13.80     K4IVe 349 1
107 V* IT Tau Y*O 04 33 54.70128 +26 13 27.5232   16.76 14.63     K6.0 104 0
108 2MASS J04341099+2251445 TT* 04 34 10.9942079544 +22 51 44.395888824     15.19     M1.5 56 0
109 V* V1077 Tau Or* 04 34 18.0303957624 +18 30 06.519662280   13.70       G8 82 0
110 V* AA Tau Or* 04 34 55.4201902392 +24 28 53.033624580 13.14 13.34 12.20 12.03   K5Ve 723 0
111 HD 285898 Or* 04 35 14.1986175456 +18 21 35.581097808   11.69 11.39     G0 31 0
112 V* HO Tau Or* 04 35 20.2104968376 +22 32 14.561379276     15.20     M0.5 132 0
113 V* FF Tau Or* 04 35 20.9046544728 +22 54 24.233506092 17.57 15.73       K7 85 1
114 GSC 01270-00355 TT* 04 35 24.5038529437 +17 51 42.495480359   15.680 14.030 13.310   M1.5 59 2
115 V* DN Tau Or* 04 35 27.3776226144 +24 14 58.910343720 13.56 12.88 11.50 11.79   M1:Ve 396 0
116 IRAS 04325+2402 Y*O 04 35 35.39160 +24 08 19.4244           ~ 159 0
117 CoKu Tau-Aur Star 3 TT* 04 35 40.937952 +24 11 08.49012 20.58         M4.3 107 0
118 V* HP Tau Or* 04 35 52.7819078592 +22 54 23.156947512 17.39 14.9 14.90     K2-5e 218 1
119 Haro 6-28 Or* 04 35 56.8536876816 +22 54 36.092202012 18.94         M3.1 104 0
120 V* V1115 Tau TT* 04 36 19.1015447256 +25 42 59.001786828   12.97 11.76 10.81 10.228 M0 94 0
121 V* GM Tau Or* 04 38 21.3383367240 +26 09 13.775325624     17.577   15.04 M6.5 116 0
122 V* DO Tau Or* 04 38 28.5880527336 +26 10 49.467596196 12.78 13.44 12.30 13.01   M1Ve 376 1
123 V* HV Tau Or* 04 38 35.2904827968 +26 10 38.640143136           M1Ve 142 0
124 IRAS 04361+2547 Y*O 04 39 13.89288 +25 53 20.8788           ~ 196 1
125 V* VY Tau Or* 04 39 17.4194063616 +22 47 53.348542332     9.00     M0Ve 199 0
126 EM* LkCa 15 Or* 04 39 17.7911622816 +22 21 03.390090984   13.01 12.03 11.61   K5:Ve 690 1
127 V* GN Tau Or* 04 39 20.922216 +25 45 02.02608 17.22     13.85   M2.5 103 0
128 IRAS 04365+2535 Y*O 04 39 35.19360 +25 41 44.7252           ~ 291 0
129 IRAS 04368+2557 Y*O 04 39 53.97816 +26 03 09.6804           ~ 278 0
130 IRAS 0437+257P08 Y*O 04 39 55.7457478224 +25 45 01.941104988           B5 170 1
131 JH 223 TT* 04 40 49.5109778880 +25 51 18.968555196 18.25     15.09   M2.8 63 0
132 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4416 0
133 V* IW Tau Or* 04 41 04.7179844751 +24 51 06.034940625   14.25 12.595 11.65 10.504 K7Ve 122 0
134 IRAS 04381+2540 Y*O 04 41 12.67920 +25 46 35.4216           K0-M2 129 1
135 CoKu Tau-Aur Star 4 TT* 04 41 16.8104181312 +28 40 00.073831728   16.40 14.68 14.59   M1.5e 181 0
136 EM* LkHA 332 Or* 04 42 07.7851647456 +25 23 11.886259920 17.90 16.51       K7+M2.5 156 1
137 2MASS J04422101+2520343 TT* 04 42 21.0216126792 +25 20 34.305993708 18.67         M5.1 65 0
138 V* DP Tau Or* 04 42 37.6989071232 +25 15 36.983641716 15.84 15.2 13.70 14.42   M0.8 172 1
139 V* GO Tau Or* 04 43 03.0761840904 +25 20 18.706850340   16.2 14.40     M2.3 197 0
140 V* DQ Tau Or* 04 46 53.0575226016 +17 00 00.136127304 14.56 13.67 12.00 13.21   M1Ve 339 0
141 V* DR Tau Or* 04 47 06.2151561264 +16 58 42.813872580 12.03 11.86 10.50 12.19   K5Ve 534 0
142 V* DS Tau Or* 04 47 48.5954691000 +29 25 11.191621512 13.11 13.16 12.30 12.37 10.80 K4Ve 258 0
143 V* UY Aur Or* 04 51 47.3890167432 +30 47 13.551561492 12.82 12.96 11.90 10.59 9.52 M0e+M2.5e 359 0
144 IRAS 04489+3042 Y*O 04 52 06.6862507800 +30 47 17.007457092           M2 66 0
145 V* GM Aur Or* 04 55 10.9815576936 +30 21 59.373771876 14.59 13.351 12.242 11.798   K3Ve 689 0
146 HD 282630 Or* 04 55 36.9695564640 +30 17 55.101300900   12.17 11.12 10.55   K0Ve 171 0
147 V* SU Aur Or* 04 55 59.3866872552 +30 34 01.499608092   10.33 9.30 9.17   G2IIIne 591 0
148 V* V397 Aur Or* 04 56 02.0265224208 +30 21 03.670989228   13.07 11.72 11.25   K7e 172 0
149 V* V836 Tau TT* 05 03 06.5988375912 +25 23 19.606639488   15.00 13.49 13.48   K7/M0Ve 235 0
150 2MASS J05044139+2509544 TT* 05 04 41.3972186256 +25 09 54.583156908           M3.7 49 0
151 IRAS 05022+2527 TT* 05 05 22.8194200200 +25 31 30.819373752   17.71 16.26     M4.6 64 0
152 2MASS J05061674+2446102 TT* 05 06 16.7528811648 +24 46 10.156763820           M3/5e 33 0
153 2MASS J05062332+2432199 TT* 05 06 23.3356482336 +24 32 19.917141360           M3/5e 43 0
154 2MASS J05075496+2500156 TT* 05 07 54.9662127984 +25 00 15.595190532           M3.7 51 0

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