CDS

1997A&AS..124..449M

Query : 1997A&AS..124..449M

1997A&AS..124..449M - Astron. Astrophys., Suppl. Ser., 124, 449-467 (1997/September-0)

Search for young low-mass stars in a ROSAT selected sample south of the Taurus-Auriga molecular clouds.

MAGAZZU A., MARTIN E.L., STERZIK M.F., NEUHAEUSER R., COVINO E. and ALCALA J.M.

Abstract (from CDS):

We present results of intermediate resolution spectroscopy of 131 optical counterparts to 115 ROSAT All-Sky Survey X-ray sources south of the Taurus-Auriga dark cloud complex. These objects have been selected as candidate young stars from a total of 1084 ROSAT sources in a ∼300 square degree area. We identify 30 objects as low-mass PMS stars on the basis of the LiIλ6708Å doublet in their spectrum, a signature of their young age. All these stars have a spectral type later than F7 and show spectral characteristics typical of weak-line and post-T Tauri stars. The presence of young objects several parsecs away from the regions of ongoing star formation is discussed in the light of the current models of T Tauri dispersal.

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+AS/124/449): table1 table2 table3 table4 tables.tex>

Nomenclature: Table 2: [MMS97] RX JHHMM.m+DDMMA, [MMS97] RX JHHMM.m+DDMMW, [MMS97] RX JHHMM.m+DDMMWW, N=31

Simbad objects: 140

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Number of rows : 140
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 RX J0207.0-1407 * 02 07 02.9223136080 -14 06 51.709821012           F8 1 0
2 2MASS J02090668-1535430 SB* 02 09 06.6902821080 -15 35 43.097083080     13.00     K4 6 0
3 BD-13 396 ** 02 10 25.831 -13 07 56.84   10.80 10.29 10.24   G5+K3(e) 9 0
4 V* FQ Cet EB* 02 12 18.7283748888 -13 30 42.156993636   11.64 10.60     K1 14 0
5 RX J0215.0-1402 * 02 15 00.4327282920 -14 01 32.156584788           K4 1 0
6 TYC 5282-68-1 SB* 02 18 39.5642105328 -10 04 06.001967712     11.80     G8 10 0
7 [MMS97] RX J0219.4-1321C * 02 19 25 -13 21.7     15.5     ~ 1 0
8 2MASS J02192533-1321074 Er* 02 19 25.3427875032 -13 21 07.559463240     14.8     ~ 2 0
9 RX J0219.4-1321 X 02 19 26.4 -13 20 53           ~ 2 1
10 2MASS J02194738-1025406 TT* 02 19 47.3900001624 -10 25 40.608096780   11.80 10.72     K0e 17 0
11 2MASS J02202831-1305238 * 02 20 28.3180896888 -13 05 24.015676416           F0? 1 0
12 [MMS97] RX J0219.4-1321A * 02 20 29 -13 20.4     13     ~ 1 0
13 RX J0223.3-1615 * 02 23 21.1 -16 14 39           G7 2 1
14 2MASS J02232131-1614218 * 02 23 21.3246138168 -16 14 21.959361600     13.4     K7 3 0
15 [MMS97] RX J0223.3-1615SW * 02 23 25 -16 14.5     13.5     ~ 1 0
16 HD 15526 * 02 29 35.0346656952 -12 24 08.653912920   10.43 9.79     G5/6V 25 0
17 2MASS J02371994-0526541 TT* 02 37 19.9398684408 -05 26 54.145960836     13.33     K4 7 0
18 GSC 05288-01027 SB* 02 39 08.7519084456 -10 27 46.433176920     13.20     K7 22 0
19 RX J0243.8-0850 * 02 43 52.35 -08 49 30.0           M2 2 0
20 GSC 05289-01010 SB* 02 48 22.1771786616 -11 17 12.252333696     12.00     G7 7 0
21 GSC 04700-00426 SB* 02 51 48.4644211920 -02 03 39.248331372     12.77     G9 10 0
22 RX J0254.8-0709 X 02 54 52.4 -07 09 26           ~ 2 1
23 ** JNN 21A LM* 02 54 52.4708458056 -07 09 25.577985924     14.5     M3 11 0
24 [MMS97] RX J0254.8-0709NW * 02 54 53 -07 09.4     15.5     ~ 1 0
25 RX J0255.8-0750 * 02 55 52.4 -07 50 25           K8 4 1
26 2MASS J02555268-0750292 * 02 55 52.7228192064 -07 50 29.033437200           ~ 3 0
27 2MASS J02555275-0750406 SB* 02 55 52.7602629384 -07 50 40.526447208     14.0     K 5 0
28 BD+02 486A SB* 03 09 09.8813912664 +03 23 44.641235364   11.26       F7 10 0
29 BD+02 486B * 03 09 09.9005294160 +03 23 42.843484428           ~ 2 0
30 BD-04 548 Y*O 03 12 50.2260184032 -04 14 04.916273856   11.01 10.31 10.31 9.70 G0 9 0
31 RX J0312.8-0414 mul 03 12 50.4 -04 13 57           ~ 5 0
32 2MASS J03125074-0414152 Y*O 03 12 50.7491834184 -04 14 15.259186284     10.5 11.05 10.39 G8 7 0
33 2MASS J03145070-0405570 * 03 14 50.7004549992 -04 05 57.098759064           A 2 0
34 RX J0317.9+0231 EB* 03 17 59.1378064800 +02 30 11.566817460   11.06 10.41     G6 8 0
35 BD-00 525 * 03 19 22.7372029368 +00 02 32.677814760   10.23 9.58     G0 16 0
36 V* V1264 Tau TT* 03 24 25.2469771152 +02 31 00.947344224     12.39     K4 14 0
37 TYC 57-485-1 * 03 29 08.0691514416 +01 18 05.667673644   11.09 10.49     G0IV: 19 0
38 [ZEH2003] RX J0330.7+0305 1 * 03 30 43.4 +03 05 21     15     ~ 2 0
39 RX J0330.7+0305 SB* 03 30 43.5102558408 +03 05 46.934055312   11.70 10.80     K1 12 0
40 2MASS J03330155+0353379 TT* 03 33 01.5550970040 +03 53 37.984558812     13.44     K7 7 0
41 V* V1267 Tau TT* 03 33 11.6208805846 +10 35 56.070049589     12.23     K3 17 0
42 HIP 16786 * 03 36 00.3418331 +08 45 36.764344   13.894 14.534     M3 21 0
43 TYC 660-182-1 * 03 38 09.0640799112 +12 23 52.778138172   12.21 11.53     K0 4 0
44 TYC 660-709-1 * 03 38 18.2378375498 +10 20 16.709311388   12.04 11.30     G9 12 0
45 GSC 00070-01148 SB* 03 39 40.5930513480 +06 24 43.565243328     11.32     G9e 13 0
46 RX J0340.3+1220 SB* 03 40 19.3060429416 +12 20 16.570364820     12.624   11.216 K5e 10 0
47 2MASS J03403144+0638598 * 03 40 31.4406449424 +06 38 59.862627168           K2 3 0
48 LEDA 3095645 Sy1 03 41 14.3295909384 +04 53 25.208554560     16.7     ~ 13 0
49 TYC 657-636-1 * 03 41 14.3623118664 +07 59 33.515584188   11.45 10.59     K0 3 0
50 TYC 660-825-1 SB* 03 43 40.4918265816 +10 39 13.681325412   11.02 10.25     K0 12 0
51 V* V1273 Tau Ir* 03 44 53.1684549597 +03 59 30.950706667   12.77 12.60     K1e 18 0
52 ATO J056.8091+09.5479 V* 03 47 14.1945172776 +09 32 52.812173436     13.4     ~ 5 0
53 RX J0347.2+0933 * 03 47 15.4 +09 33 02           ~ 5 1
54 2MASS J03471667+0933085 * 03 47 16.6659602664 +09 33 08.694241452     12     ~ 4 0
55 TYC 71-542-1 * 03 47 56.8432281415 +06 16 06.875620164   12.74 12.09     G2 11 0
56 TYC 661-1404-1 * 03 48 16.8077689367 +11 08 40.545546341           F3Vn 9 0
57 TYC 658-922-1 * 03 48 31.4348421383 +08 31 36.783778121   11.66 11.01     G7 15 0
58 BD+12 511B EB* 03 49 27.5410057920 +12 54 32.199778980   11.48 10.71 10.485   G7 22 0
59 V* V1128 Tau EB* 03 49 27.7666168464 +12 54 43.844508468   10.30 9.64     F8V 68 0
60 2MASS J03501289+0849339 SB* 03 50 12.8963420088 +08 49 33.896483256     12.10     K5 4 0
61 TYC 661-1226-1 * 03 50 40.8267332952 +10 32 50.968026024   11.12 10.20     K0III 3 0
62 2MASS J03504172+0453448 * 03 50 41.7296282256 +04 53 44.891153952           K7 2 0
63 V* V1285 Tau Ir* 03 51 26.2665119904 +09 53 37.280143896   12.6       ~ 5 0
64 [MMS97] RX J0351.4+0953E * 03 51 28 +09 53.6     13.7     ~ 2 0
65 RX J0351.4+0953 X 03 51 28.5 +09 53 20           ~ 2 1
66 GSC 00069-00719 * 03 51 49.4305655760 +04 13 31.007339724           G6 6 0
67 BD+11 533 * 03 52 24.7605074304 +12 22 43.672462392   10.41 9.83     F8 22 0
68 TYC 72-606-1 * 03 54 06.6101271840 +05 27 23.544845352   12.66 12.20     G8 8 0
69 TYC 72-921-1 * 03 54 21.3086712384 +05 35 40.816766292   10.82 10.14     G2V: 21 0
70 RX J0354.4+1204 EB* 03 54 25.1700951264 +12 04 07.822416684   12.05 11.85     G5 5 0
71 UCAC4 513-006501 * 03 54 50.7412473024 +12 32 06.028172736   14.512 13.201 12.903   K7 5 0
72 2MASS J03564567+0943392 PM* 03 56 45.6869630832 +09 43 39.148074444           M3 3 0
73 TYC 665-150-1 * 03 57 21.3821081559 +12 58 16.751428509   11.55 10.77     G0 20 0
74 2MASS J03581272+0932223 TT* 03 58 12.7237378709 +09 32 22.352518138     12.29     K3 12 0
75 2MASS J04000112+0730104 SB* 04 00 01.1284530960 +07 30 10.387791360   13.97 13.25     G3 5 0
76 BD+07 582A * 04 00 09.4073279040 +08 18 15.168740904   11.02 10.41 10.304   ~ 18 0
77 BD+07 582 ** 04 00 09.5088 +08 18 18.252     9.658   8.670 G5IV/V 27 0
78 2MASS J04005395+1115270 * 04 00 53.9606377824 +11 15 27.139353084           K0 2 0
79 TYC 79-729-1 SB* 04 02 35.6877299136 +05 51 36.645817644   11.80 10.94 10.91   G4 11 0
80 [VV98] J040329.5+083703 QSO 04 03 30.1098194904 +08 36 44.283061404   18.3 18.42     ~ 10 0
81 TYC 79-810-1 * 04 04 28.4554072080 +05 18 43.345259136   11.97 11.45 11.41   K0 13 0
82 RX J0405.5+0324 SB* 04 05 30.2187601632 +03 23 50.200828332   12.52 11.38   10.379 K4(e) 14 0
83 RX J0407.2+0113A * 04 07 16.3479959304 +01 13 14.682539568   13.02 11.79 11.81   ~ 4 0
84 RX J0407.2+0113 ** 04 07 16.47528 +01 13 14.0952           G4(N) 9 0
85 2MASS J04073725+0638451 * 04 07 37.2601437216 +06 38 45.100409892           G0 3 0
86 RX J0408.6+1017 SB* 04 08 39.8816847192 +10 17 32.842020264   13.84 12.79 12.57   G7 6 0
87 HD 26172 EB* 04 08 49.6067414832 +10 27 49.174882344   9.40 8.810   8.035 G5(N) 22 0
88 HD 286556 * 04 09 51.5223506448 +12 09 01.861424496   10       F8 8 0
89 ATO J062.6653+06.1442 SB* 04 10 39.6679737840 +06 08 39.292396224     12.94     K4 8 0
90 2MASS J04131468+1028011 * 04 13 14.6932419672 +10 28 00.933705156           G0 2 0
91 GSC 00074-01029 * 04 18 39.2794598088 +01 42 09.886700052           K4 8 0
92 2MASS J04194994+0213439 * 04 19 49.9434652440 +02 13 43.924308528           F5 3 0
93 [BSF97] J041959.2+023134 * 04 19 59.2 +02 31 34           F9 3 0
94 GSC 00075-00041 SB* 04 22 54.6195774984 +01 41 31.848911160     12.27     F8 9 0
95 RX J0423.5+0955 Ro* 04 23 30.2215988688 +09 54 28.998477324   13.18 12.24 12.17 10.916 K4 12 0
96 HD 286753 * 04 25 35.3197790208 +12 09 59.359739940   11.08 10.56     F8 9 0
97 GSC 00672-01133 EB? 04 26 26.8015711992 +09 56 59.544651048     12.0     ~ 5 0
98 RX J0426.4+0957 X 04 26 27.3 +09 56 47           ~ 5 1
99 GSC 00672-01265 * 04 27 30.2991203688 +10 38 48.890392944           G0 7 0
100 TYC 81-1414-1 * 04 27 32.0719850112 +06 15 52.065551304   11.07 10.64     G4 9 0
101 BD+00 760 SB* 04 27 53.0757238392 +00 49 25.690680228   10.04 9.37     G0 7 0
102 [MMS97] RX J0426.4+0957E * 04 29 13.86 +10 03 30.9     11.5     ~ 2 0
103 TYC 75-1-1 SB* 04 29 56.8990471375 +01 54 47.497523864   11.03 9.90     K3 8 0
104 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1325 0
105 2MASS J04334610+0522086 * 04 33 46.1089681416 +05 22 08.592225204           F8 3 0
106 2MASS J04341953+0226260 Y*O 04 34 19.5456458760 +02 26 26.157838344     12.32     K4e 18 0
107 BD+04 715 LP* 04 35 31.5844304544 +04 55 32.185331940   11.23 10.12     K3III 9 0
108 V* V1251 Tau EB* 04 41 57.7152611160 +05 36 34.195308264   10.80 9.55   8.343 G5 24 0
109 V* V1330 Tau RS* 04 42 18.5990574936 +01 17 39.894654264   14.14 11.88 11.27   K5 14 1
110 BD+08 742 * 04 42 32.0876141016 +09 06 00.862082460   11.90 11.02     G5V: 28 0
111 HD 287006 SB* 04 42 40.8202285512 +10 17 45.389959548   9.90 8.842   7.605 K3III? 13 0
112 TYC 91-702-1 SB* 04 42 54.7260071832 +04 00 11.509130448   11.76 11.12     K0 11 0
113 HD 287017 EB* 04 44 20.4236986560 +09 41 03.611652648   9.87 9.319   8.567 G0 14 0
114 2MASS J04442716+0724590 SB* 04 44 27.1577737656 +07 24 59.130900576     13.67     K5 8 0
115 V* V1825 Ori BY* 04 44 45.3726413304 +08 13 46.933834224     11.75     K4 13 0
116 2MASS J04451314+0729179 * 04 45 13.1601605808 +07 29 17.912295600           G0 6 0
117 TYC 683-282-1 * 04 45 23.8335083479 +09 13 48.373437317   12.769 12.028 11.937   G0 8 0
118 V* V1827 Ori Ir* 04 45 36.5394141816 +12 07 50.906324748           K7 7 0
119 RX J0448.0+0737 TT* 04 48 00.8579249712 +07 37 56.276473836   12.22 11.356   10.308 K3 11 0
120 V* V1831 Ori TT* 04 50 04.6945552776 +01 50 42.601523568   12.46 11.97     G9 11 0
121 RX J0451.6+0619 SB* 04 51 41.523336 +06 19 20.32500   13.69 12.79 12.60   K2 5 0
122 2MASS J04595452+1017471 GiC 04 59 54.560 +10 17 47.23           ~ 7 0
123 2MASS J05111594+1030359 TT* 05 11 15.9408478032 +10 30 35.758634184           K7 10 0
124 TYC 702-1689-1 * 05 12 00.2867720640 +11 12 19.793752380   12.22 11.46     G4 8 0
125 RX J0512.0+1020 TT* 05 12 03.1867728168 +10 20 06.500638140   13.85 11.28 11.73   K2 10 0
126 2MASS J05134041+0954501 * 05 13 40.4220832032 +09 54 50.242334868           G6 2 0
127 TYC 707-1311-1 SB* 05 15 20.5736968224 +12 21 13.872721896   12.78 11.48     K0 9 0
128 2MASS J05162151+1147472 TT* 05 16 21.5190273768 +11 47 47.170873536     12.44     K4 9 0
129 TYC 704-975-1 SB* 05 23 04.6587851064 +09 34 00.528071088     10.39     F8 6 0
130 RX J0523.5+1005 SB* 05 23 33.7436394144 +10 04 29.286601284   12.82 11.605   10.477 K3(e) 10 0
131 HD 243284 PM* 05 23 57.0587768928 +11 00 55.788498648   11.67 11.04     F8 7 0
132 [MMS97] RX J0525.7+1205NW * 05 25 44 +12 04.5     14.5     ~ 1 0
133 RX J0525.7+1205 X 05 25 46.6 +12 03 57           ~ 2 1
134 2MASS J05254722+1204100 * 05 25 47.2246868904 +12 04 10.169173200     14.1     ~ 7 0
135 TYC 708-2137-1 * 05 28 25.7609251775 +12 12 35.974396582   12.854 12.001 11.718   K2 7 0
136 2MASS J05283519+1219039 TT* 05 28 35.1922933656 +12 19 03.993154752           K3 5 0
137 V* V1872 Ori Or* 05 28 58.5318589032 +10 45 37.630099332     13.14 12.49 11.86 K3 17 0
138 V* V1874 Ori Or* 05 29 18.9946647696 +12 09 29.361953088     12.86     K7/M0e 16 0
139 ATO J082.7387+12.4572 SB* 05 30 57.2723966280 +12 27 26.399344572   11.88 11.14 11.13   K0 11 0
140 V* HM Ori Or* 05 31 47.783304 +12 18 08.19216   14.58 13.34 12.79 11.61 K4 19 0

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2023.03.28-13:42:17

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