2000A&AS..145..187C

Query : 2000A&AS..145..187C

2000A&AS..145..187C - Astron. Astrophys., Suppl. Ser., 145, 187-195 (2000/August-0)

Photometric observations of weak-line T Tauri stars. II. WTTS in Taurus-Auriga, Orion and Scorpius OB2-2.

CHAVARRIA-K. C., TERRANEGRA L., MORENO-CORRAL M.A. and DE LARA E.

Abstract (from CDS):

We present uvby-β photometry of 116 X-ray flux-selected active stars in the directions of the Orion (40), Taurus-Auriga (58) and Scorpius OB2-2 (18) star forming regions. Additionally, we give near IR JHK photometry of 20 active stars in the Taurus-Auriga direction. The program stars were selected from the ROSAT All Sky Survey and EINSTEIN X-ray surveys and are spectroscopically confirmed weak-line T Tauri stars and weak-line T Tauri star candidates. The photometry confirms the young nature of the program stars and also indicates that a significant fraction of the sample could be foreground objects. The data given here probably represent the largest homogeneous uvby-β photometric sample of new WTTS and WTTS candidates. Many objects in the sample are observed photometrically for the first time.

Abstract Copyright: ∼

Journal keyword(s): stars: activity - stars: evolution - stars: pre-main sequence

VizieR on-line data: <Available at CDS (J/A+AS/145/187): table1.dat table2.dat table3.dat table4.dat>

Simbad objects: 119

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Number of rows : 119
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 HD 285281 TT* 04 00 31.0706486828 +19 35 20.913765172   11.34 10.167 9.74 9.011 K1 40 0
2 HD 285372 TT* 04 03 24.9515332104 +17 24 26.050752144   13.17 11.60 11.22   K3V: 39 0
3 HD 283323 TT* 04 05 12.3477785160 +26 32 43.833558408   12.26 11.64     K2 28 0
4 V* V1298 Tau TT* 04 05 19.5909996648 +20 09 25.563233736   11.11 10.12 9.57   K1 130 0
5 V* V1299 Tau Ir* 04 05 40.5850046784 +22 48 11.800275120   9.99 9.39     G3V: 52 0
6 HD 284149 TT* 04 06 38.7981157344 +20 18 11.151888084   10.21 9.63     F8 53 0
7 V* V1196 Tau TT* 04 08 12.9971505648 +19 56 39.262847784           K2 30 0
8 HD 281691 TT* 04 09 09.7467974736 +29 01 30.302914008   11.48 10.68 10.24   G8III 49 0
9 V* V1304 Tau TT* 04 09 16.9997169624 +17 16 08.226733044   14.58 13.20     M1 26 0
10 V* V1306 Tau TT* 04 09 51.1327776576 +24 46 21.070702524   14.72 13.30     M1 32 0
11 V* V1307 Tau TT* 04 12 50.629008 +19 36 57.76200   13.87 12.58 12.59   K6 28 0
12 V* V1198 Tau TT* 04 12 51.2176349400 +24 41 44.199615228   12.97 12.57 12.355   G9 24 0
13 HD 285579 TT* 04 12 59.8845953784 +16 11 48.196387968   11.92 11.12     G0 22 0
14 HD 284266 TT* 04 15 22.9214409240 +20 44 16.917956484   11.20 10.51 10.12   K0V: 44 0
15 V* V952 Per TT* 04 15 51.3743941320 +31 00 35.849672892   13.25 12.36     G6 18 0
16 V* V652 Per TT* 04 20 24.1154560224 +31 23 23.688448692   13.54       K4 23 0
17 2MASS J04204982+3009155 TT* 04 20 49.8181075848 +30 09 15.263958276     14.74     K7 15 0
18 HD 285751 TT* 04 23 41.3220021720 +15 37 54.899671728   12.42 11.56     K2V: 44 0
19 V* V1201 Tau TT* 04 24 48.1541789688 +26 43 16.062986712   13.53 11.26 10.88   K1 43 0
20 HD 283641 TT* 04 24 49.0452856368 +26 43 10.395844176   12.41 11.42     K0 39 0
21 V* IP Tau Or* 04 24 57.0824018640 +27 11 56.539953888   14.50   12.46   M0:Ve 232 0
22 [HJS91] 4872 TT* 04 25 17.6698859307 +26 17 50.429311147   15.66 13.77 13.67   K9e 48 0
23 AG+18 339 Y*O 04 27 05.9787842904 +18 12 37.200405492   9.09 8.73     G5 36 0
24 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1357 0
25 V* V1319 Tau TT* 04 30 49.1855896920 +21 14 10.654195380   11.07 10.24 9.82 9.465 G8 36 0
26 HD 284496 TT* 04 31 16.8584671848 +21 50 25.246186044   11.59 10.795 10.36 9.837 G0 39 0
27 V* V1321 Tau TT* 04 32 53.2357475304 +17 35 33.645243444     13.69     M2 57 0
28 V* V1322 Tau TT* 04 33 34.6803609864 +19 16 48.857389140     13.58     G6 15 0
29 V* V1323 Tau TT* 04 33 41.9926222344 +18 24 27.395522100   12.14 11.75     G6 19 0
30 V* IT Tau Y*O 04 33 54.70128 +26 13 27.5232   16.76 14.63     K6.0 104 0
31 V* V1324 Tau TT* 04 35 56.8366741632 +23 52 05.041814880   15.01 13.57     M1 32 0
32 V* V961 Per TT* 04 37 16.8636732048 +31 08 19.566606084   14.54 13.24     K4 21 0
33 RX J0437.4+1851B TT* 04 37 26.8466657448 +18 51 22.352070420       12.84   ~ 8 0
34 RX J0437.4+1851A TT* 04 37 26.8711516200 +18 51 26.718203844       11.58 9.915 K6 17 0
35 V* V1117 Tau Y*O 04 38 15.6143744976 +23 02 27.544142652   15.26 13.76 13.41   M1 34 0
36 HD 285957 TT* 04 38 39.0722950320 +15 46 13.573577352   11.75 10.863   9.616 K2 52 0
37 V* V1328 Tau TT* 04 41 23.9948358936 +27 15 12.468646008   14.05 13.11     G8 19 0
38 HD 283798 TT* 04 41 55.1542944840 +26 58 49.419533856   10.21 9.55     G2 52 0
39 V* V1331 Tau TT* 04 43 25.9667713008 +15 46 03.787638528   13.88 12.84     G7 12 0
40 V* V1205 Tau TT* 04 44 23.5482972360 +20 17 17.477873160   13.70 12.67     K1 19 0
41 V* V1333 Tau TT* 04 44 26.8992878928 +19 52 16.248831024   13.94 12.55     ~ 18 0
42 HD 283782 TT* 04 44 54.4590108624 +27 17 45.223813068   10.69 9.80 9.47   K0 37 0
43 HD 30171 TT* 04 45 51.2948260920 +15 55 49.632455460   10.12 9.36   8.439 G5 53 0
44 V* V1335 Tau TT* 04 46 53.2715281680 +22 55 12.932890680     12.94     ~ 21 0
45 V* V1337 Tau RS* 04 48 00.44 +27 56 19.6     12.39     G2 18 0
46 V* V1341 Tau TT* 04 50 00.1930583400 +22 29 57.504414912   12.19 11.285   10.172 K1 30 0
47 V* V1343 Tau TT* 04 51 54.2542654080 +17 58 27.776552232     14.26     M2 19 0
48 V* V1344 Tau TT* 04 51 56.5107622296 +28 49 25.932211536     14.52     K2 13 0
49 V* V1345 Tau TT* 04 51 56.8550119848 +28 49 42.737511864   13.2 14.38 13.39   K4 14 0
50 V* V1346 Tau TT* 04 52 30.7533146448 +17 30 25.724127708     12.02     K4 30 0
51 RX J0452.8+1621 RS* 04 52 50.1733660566 +16 22 09.075181407   13.074 11.778 11.367   K4 25 0
52 V* V1348 Tau TT* 04 52 57.0729898536 +19 19 50.284227000     12.15     K5 23 0
53 HD 31281 TT* 04 55 09.6199331136 +18 26 31.105838832   9.83 9.14 9.12   G1V: 39 0
54 V* V1351 Tau TT* 04 56 13.5708293232 +15 54 21.921854076   12.5 12.77     K7 17 0
55 HD 282598 TT* 04 56 36.6920057496 +31 50 19.414100544   11.67 10.67     K0 5 0
56 V* V1353 Tau TT* 04 56 56.5439978040 +16 00 24.839219268     14.42     M1.5 18 0
57 HD 286179 TT* 04 57 00.6443930448 +15 17 53.000447676   10.99 10.39     G3V: 40 0
58 V* V1354 Tau TT* 04 57 30.6551084688 +20 14 29.585897268   11.94 11.09 10.85 9.938 K1 33 0
59 V* V1207 Tau TT* 04 58 39.7400575008 +20 46 44.000970276   13.15       K7 33 0
60 V* AX Lep TT* 05 03 49.5558360864 -11 31 01.143472368     12.26     K3 6 0
61 V* MS Eri RS* 05 07 48.3256605504 -09 31 43.260275316     12.50     K2 9 0
62 RX J0519.9+0552 TT* 05 19 50.86 +05 52 14.9     14.72     K6 6 0
63 2MASS J05224314+0014330 TT* 05 22 43.1435276304 +00 14 33.052290540     15.73     M2e 4 0
64 2MASS J05224831-1144391 TT* 05 22 48.3113291304 -11 44 39.262605864     14.74     M1e 3 0
65 RX J0523.0-0850 TT* 05 22 57.0591627713 -08 50 12.041117253     13.824   11.601 M2 9 0
66 Kiso A-0975 69 TT* 05 23 03.8191750536 -04 40 43.797790272   15.68 14.43 14.08   K6e 9 0
67 2MASS J05240769+0730554 TT* 05 24 07.6973295000 +07 30 55.475721144     12.72     K4 5 0
68 RX J0523.3+0208 TT* 05 25 15.9 +02 08 56     15.77     ~ 3 0
69 2MASS J05263126+1510151 TT* 05 26 31.2665733888 +15 10 15.134352312   12.19 11.71     G5 8 0
70 2MASS J05274134+0153269 TT* 05 27 41.3564328360 +01 53 26.892720060     16.02     K7 3 0
71 V* V1869 Ori RS* 05 27 58.9593041880 -00 53 15.146651796     12.72     K0 12 0
72 RX J0528.8+0105 TT* 05 28 46 +09 59.6     12.67     K4 3 0
73 HD 294207 TT* 05 31 38.59152 -03 27 06.9084     9.56     K0 11 0
74 V* V1883 Ori TT* 05 32 21.9478501373 +01 31 41.316358386           K5 5 0
75 V* V1884 Ori TT* 05 32 22.5610093608 +01 31 42.457889352   12.60 11.86 11.65   K2 9 1
76 V* V1887 Ori TT* 05 33 08.8694984448 +02 24 43.790429088     13.49     K4 9 0
77 HD 245059 Y*O 05 34 34.9060262317 +10 07 06.329811125   10.71 9.926   8.865 G8e 45 0
78 2MASS J05344376+1114583 TT* 05 34 43.7607860544 +11 14 58.177328568     12.41     K4 5 0
79 NAME Ori Region reg 05 35 17.30 -05 23 28.0           ~ 579 0
80 V* V2526 Ori RS* 05 35 33.4039956864 -01 52 35.609407572   11.80 12.18     G9 13 0
81 RX J0535.7-0418 TT* 05 35 42.0 -04 18 09     14.56     K3 3 0
82 2MASS J05382368-0637446 TT* 05 38 23.6848742952 -06 37 44.598506772   12.97 11.95 12.19   K1.5 13 0
83 2MASS J05382377-0637408 TT* 05 38 23.7760672536 -06 37 40.716615468       12.84   K1e 12 0
84 2MASS J05384453+1302585 TT* 05 38 44.5360855800 +13 02 58.447005468   11.38 10.91     K2 8 0
85 V* V2745 Ori RS* 05 39 21.0777663120 +09 18 09.770926428   12.31 11.63     K1 8 0
86 2MASS J05394900-0138472 TT* 05 39 49.0065387120 -01 38 47.195340180     13.01     K3 9 0
87 2MASS J05395534+0915370 TT* 05 39 55.3448707176 +09 15 36.952089120   12.06 11.56     K0 9 0
88 V* V2751 Ori RS* 05 39 56.5228190088 +09 56 31.546214268   11.75 11.17   9.759 K5+M3 15 0
89 Haro 4-468 Y*O 05 40 05.7094897512 -06 27 56.672588268     15.0     K7/M0e 8 0
90 V* V2756 Ori Or* 05 40 34.1778064440 -01 21 53.968688892     10.40     K5 10 0
91 V* V909 Ori Or* 05 42 55.8832724424 -07 18 38.423293020   15.684 14.213 13.860 11.561 M3 25 0
92 2MASS J05453501-1020455 TT* 05 45 35.0206896888 -10 20 45.610116756   12.03 11.46     G7 6 0
93 ATO J086.5167+12.5464 TT* 05 46 04.0191285240 +12 32 47.118190848   12.50 12.32 11.67   G9 9 0
94 RX J0546.7-1223 TT* 05 46 42.6 -12 23 29     13.30     G5 4 0
95 RX J0546.9-0507 TT* 05 46 51.076 -05 06 47.83     12.30     K4 3 0
96 2MASS J05503529-1249188 TT* 05 50 35.2911063168 -12 49 18.767777916     13.43     K6 3 0
97 ATO J087.7867+07.8159 TT* 05 51 08.8046097360 +07 48 57.726338940   12.96 11.93     K6 6 0
98 2MASS J05521912-0557431 TT* 05 52 19.1164508760 -05 57 43.242332652     13.09     K2 5 0
99 2MASS J05564682-0611093 TT* 05 56 46.8306260352 -06 11 09.317404752   12.80 11.87     K5 5 0
100 2MASS J05575680+0929082 TT* 05 57 56.8050909120 +09 29 08.160304308   11.86 11.22     G9 7 0
101 HD 142361 TT* 15 54 59.8695458688 -23 47 18.180029616   9.68 8.960   8.092 G3V 70 0
102 RX J155629.3-234821 BY* 15 56 29.4191882513 -23 48 19.828475536           M1.5V 27 0
103 RX J155720.1-233847 BY* 15 57 19.9921604088 -23 38 49.968268224           M0V 25 0
104 V* V1147 Sco ** 15 57 25.744032 -23 54 22.30020   15.64 13.90 13.47   M0.5V 24 0
105 V* V1150 Sco Ro* 15 59 59.9527097064 -22 20 36.759121188     11.99   10.90 M1V 32 0
106 CD-22 11298 BY* 16 01 25.6301810064 -22 40 40.289030832   13.02 13.44     K1IV 64 0
107 V* V1154 Sco RS* 16 02 10.4340916128 -22 41 28.824128520   12.46 11.32 10.96   K5+K5 55 0
108 ScoPMS 27 BY* 16 04 47.7531686256 -19 30 22.916271132   12.43 11.254   9.822 K3IVe 51 0
109 ScoPMS 28 TT* 16 05 27.2683550136 -19 38 46.707624132     14.05     M1V 19 0
110 ScoPMS 42b TT* 16 10 21.7424768952 -19 04 06.590282484           M1V 28 0
111 Wa Oph 1 Or* 16 11 08.9057560608 -19 04 46.976720052     12.073   10.194 K2IV(e) 67 0
112 Wa Oph 2 Or* 16 11 59.2702332696 -19 06 53.316517068     11.66 11.57   K2Ve 66 0
113 NAME Upper Sco Association As* 16 12 -23.4           ~ 1369 1
114 BD-18 4244 Or* 16 12 40.5144406080 -18 59 28.267620432   12.15 10.829   9.235 K0IV(e) 90 0
115 HD 146516 TT* 16 17 31.3909720200 -23 03 36.123102792     10.143   9.130 G7V 47 0
116 BD-21 4369 BY* 16 29 48.6927879432 -21 52 11.928822636   12.54 11.315   9.740 K2IVe 48 0
117 Wa Oph 4 Or* 16 48 18.0034524096 -14 11 15.801239760   15.40 13.46     K5Ve 30 0
118 Hen 3-1258 Or* 16 48 45.6326070624 -14 16 35.849828856   14.94 13.34 12.84   K6 121 0
119 2MASS J16490082-1417108 TT* 16 49 00.8094451056 -14 17 10.762697436   17.1 15.2     ~ 15 0

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