2003A&A...402..963M


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET15:35:47

2003A&A...402..963M - Astronomy and Astrophysics, volume 402, 963-970 (2003/5-2)

Optical spectroscopic and 2MASS measurements of Stephenson Hα stars.

MAHESWAR G., MANOJ P. and BHATT H.C.

Abstract (from CDS):

We present the results of spectroscopic observations for 52 objects from the list of Hα emission stars of Stephenson (1986ApJ...300..779S). Out of six known T Tauri stars observed, five showed Hα in emission and in one (StHa 40), Hα changed from being in absorption to emission over a period of two years, accompanied by photometric and spectral type variability. We confirm the T Tauri nature of one Stephenson object (StHa 48) on the basis of the presence of Hα and Hβ in emission, Li I λ6708 in absorption, infrared excess and X-ray emission. Among the 52 objects observed, there were other emission line objects: 1 Ke star, 1 BQ[] star, 2 galaxies and 2 Be stars. We present a higher-resolution spectrum of StHa 62 showing permitted and forbidden lines in emission typical of BQ[] stars. Twenty five out of 30 newly observed objects failed to show Hα in emission. We also present 2MASS observations for 112 StHa objects. We suggest three Stephenson objects (StHa 52, 125 and 129) to be YSOs on the basis of 2MASS, IRAS and ROSAT observations. These and all other known YSOs amongst StHa stars are found in regions of star-forming clouds in Taurus, Orion and Ophiuchus. YSOs at high galactic latitudes in other parts of the sky are therefore rare.

Abstract Copyright:

Journal keyword(s): stars: emission-line, Be - stars: general - stars: pre-main sequence - stars: late-type - infrared: stars

VizieR on-line data: <Available at CDS (J/A+A/402/963): table2.dat table2.tex refs.dat>

Simbad objects: 163

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Number of rows : 163

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 HD 224699 Em* 00 00 01.2060318940 +38 51 33.405813884   6.58 6.62     B9 15 1
2 HD 6149 Em* 01 03 03.1480770037 +36 31 51.993663768   8.76 8.56     A3 7 0
3 V* HR Psc RS* 01 36 27.8122249446 +25 08 35.611667340   12.31 11.13 10.39 9.611 K2e 11 0
4 BD+50 338 Em* 01 44 14.0110737564 +51 19 50.598186297   11.67 10.41     ~ 3 0
5 EM* StHA 9 Em* 01 52 37.3666521485 +37 20 49.837903085     13.5     ~ 3 0
6 EM* StHA 10 Em* 01 52 57.3579541744 +08 33 26.915995288   15.641 13.5     Me 7 0
7 BD+50 395 Em* 01 56 02.6711515846 +50 56 59.229924378   10.56 10.55     Be 5 0
8 BD+50 447 Em* 02 06 09.8801895196 +51 09 48.495796658   10.20 10.12     Be 8 0
9 V* TT Ari No* 02 06 53.0797667881 +15 17 41.849759579   10.73 10.20     Bep: 420 0
10 V* BU Ari Or* 02 56 07.9958235242 +20 03 24.205215669   15.14 14.15 14.50   M1:IIIe 53 1
11 V* WY Ari Or* 02 56 37.5656525980 +20 05 37.246494671   13.29 12.46     K5/6e 84 0
12 EM* StHA 15 Em* 02 58 29.9328415580 +70 47 33.679572384     13.5     A5 2 0
13 2MASS J03022104+1710342 TT* 03 02 21.05 +17 10 34.2     13.5     M2.6 19 0
14 2MASS J03254982+3110237 TT* 03 25 49.8299118123 +31 10 23.842322294   12.85 12.38     G9 11 0
15 CD-22 1266 Em* 03 39 04.1809353935 -21 47 34.056648015   12.68 11.98     G7 4 0
16 EM* StHA 22 Em* 03 40 42.4340303539 +12 56 53.237448669   11.97 11.71     Be 5 0
17 NGC 1494 GiG 03 57 42.567 -48 54 40.90   12.34   11.46 12.3 ~ 75 0
18 EM* StHA 23 Em* 03 58 38.7973599426 +69 54 01.411922564     12.5     M0e 8 0
19 EM* LkCa 4 Or* 04 16 28.1070192558 +28 07 35.732032828   13.96   11.825   K7:Ve 145 0
20 V* FT Tau Or* 04 23 39.1894939930 +24 56 14.248383831   16.15 14.93 14.70   M2.8 116 0
21 V* IP Tau Or* 04 24 57.0823478325 +27 11 56.543062579   14.50   12.46   M0:Ve 196 0
22 V* IQ Tau Or* 04 29 51.5569553814 +26 06 44.854858369 15.43   13.80 12.28 11.11 M0.5 203 0
23 V* GI Tau Or* 04 33 34.0608378045 +24 21 17.067391746 14.34   13.70 12.15 11.06 K5Ve 257 1
24 V* GK Tau Or* 04 33 34.5626781676 +24 21 05.854541262 15.50   13.00 12.02 10.62 K7:Ve 277 0
25 V* HN Tau Or* 04 33 39.3612389736 +17 51 52.302839814   14.76 13.40 13.05   K5e 223 0
26 EM* StHA 32 Sy* 04 37 45.6311522513 -01 19 11.896504207     13.5     C1,1e_CH5 31 0
27 HD 283817 Or* 04 40 32.6390643711 +24 26 31.332766721   11.49 10.61     K2e+A 34 0
28 2MASS J04542368+1709534 TT* 04 54 23.6737224402 +17 09 53.494120377     13.5     M3.4 52 1
29 EM* StHA 35 Em* 05 07 31.8168046742 +01 54 18.604966319     13.5     G0 3 0
30 2MASS J05174675-0358469 TT* 05 17 46.7541998526 -03 58 46.988048570   11.77 11.01     ~ 4 0
31 EM* StHA 37 TT* 05 20 19.4587165195 -05 45 55.417291016   13.33 12.34 12.03   ~ 17 0
32 V* V534 Ori Or* 05 20 25.7455453623 -05 47 06.385193463   14 13.5     ~ 12 0
33 2MASS J05203142-0548247 TT* 05 20 31.4341884852 -05 48 24.494718002     13.5     ~ 8 1
34 2MASS J05281785+0110061 TT* 05 28 17.8504655067 +01 10 06.120368767     13.0     G2-K0e 7 0
35 V* V1650 Ori Or* 05 29 11.4396287730 -06 08 05.404023469   11.02 10.39     F7 25 0
36 IC 423 MoC 05 33 21 -00 38.0           ~ 21 0
37 Haro 5-67 TT* 05 33 43.2640558255 -01 08 34.737485440   14.35 13.6     G:e 17 0
38 BD-05 1298 Em* 05 34 15.1986507299 -05 11 49.334115753   11.2 10.698   10.001 F7 27 0
39 HD 290667 * 05 34 24.2379303809 -00 55 19.308398980   11.0 10.7     G0 6 0
40 EM* StHA 46 Em* 05 35 10.7131081282 -00 54 44.360116670     10.6     G6 3 1
41 EM* StHA 47 TT* 05 35 22.9365390351 -01 11 24.257979321   13.36 12.49 12.33   K 8 0
42 2MASS J05354326-0034367 Y*O 05 35 43.2743310555 -00 34 36.735108371     12.3     K4 5 0
43 EM* StHA 49 Em* 05 36 20.275 -06 45 06.78     15     ~ 27 0
44 HD 37903 Em* 05 41 38.3889407943 -02 15 32.476182358 7.32 7.94 7.83 7.64 7.52 B3IV 326 1
45 V* DM Ori Or* 05 43 39.0071344530 -05 04 02.862461109   12.50 11.54 13.50   G 19 2
46 EM* StHA 55 Mi* 05 46 42.0750250231 +06 43 47.075703758     13.5     ~ 15 0
47 BD+37 1572 Em* 06 44 15.6676269007 +36 57 29.081025396   11.01 9.95     G2 2 0
48 EM* StHA 57 LP* 07 01 46.0738146527 +43 19 40.550725299   14.01 11.55     M3 4 0
49 BD+24 1523 Em* 07 05 41.0190212975 +24 18 52.051563221   9.84 9.39     F2 3 0
50 EM* StHA 59 Em* 07 12 48.8712074669 +44 03 21.282008451   11.64 11.23     ~ 3 0
51 2MASS J07175223+1324479 RG* 07 17 52.2300074362 +13 24 47.864349400   12.86 11.36 11.40   G9 5 0
52 EM* StHA 62 PN 07 20 01.5465196627 +18 17 25.909557269   12.59 12.58 12.62 12.74 B0.5I 19 0
53 EM* StHA 60 Em* 07 35 51.4828664709 +83 49 16.415828688   12.37 11.21     M3e: 3 0
54 EM* StHA 63 Em* 07 58 05.8755697473 -07 43 55.574473822     13.5     ~ 5 0
55 EM* StHA 64 Em* 08 02 37.8607673771 +42 05 15.813706438     13.5     K4 3 0
56 BD+13 1840 Em* 08 07 40.1597857419 +12 37 09.168882578   9.79 9.29     F8 3 0
57 BD+27 1547 Em* 08 09 15.8095558221 +26 54 09.688615322   11.16 10.06     K2 2 0
58 EM* StHA 67 Em* 08 19 09.4815983667 +68 42 42.485932156   13.41 12.01     Ke 7 0
59 EM* StHA 68 Em* 08 27 14.5436111487 +47 17 35.800814189   12.64 11.19     ~ 3 0
60 EM* StHA 69 Mi* 08 35 07.9387348900 -09 44 00.817362110     11.7     M5/6 8 0
61 EM* StHA 71 Em* 08 42 43.3410078887 +40 50 22.554624370     13.5     G1 3 0
62 EM* StHA 73 Em* 08 54 42.1488763255 +09 11 52.261874826     13.5     ~ 2 0
63 EM* StHA 72 Em* 08 55 46.9037733766 +51 12 22.033606039     13.5     G2 4 0
64 EM* StHA 75 Em* 09 08 02.9531325998 +12 15 45.642531338     12.5     A7 2 0
65 EM* StHA 77 Em* 09 35 39.3384384470 +41 03 13.453407892     13.5     G2 2 0
66 V* FO Cam LP? 09 45 00.0790104387 +85 14 40.187269839   11.81 10.07     M2 8 0
67 EM* StHA 79 Em* 10 01 20.04 +10 04 50.2     13.5     F7 2 0
68 EM* StHA 80 Em* 10 08 07.2630601830 +52 41 15.298035152   13.16 11.88     K0 2 0
69 EM* StHA 81 Em* 10 18 53.7066818258 +11 02 40.569270295     13.0     G2 2 0
70 EM* StHA 82 Em* 11 11 57.5810931910 +33 31 26.472360867     13.5     G6 3 0
71 EM* StHA 83 Em* 11 28 45.0055167477 -15 28 16.369585505     13.5     K4 3 0
72 HD 102083 Em* 11 44 59.1659123448 +03 04 16.924308653   8.88 8.58     A8/9V 16 0
73 NGC 4051 Sy1 12 03 09.6098828919 +44 31 52.693714606   11.08 12.92 9.94   ~ 2015 1
74 NGC 4194 AGN 12 14 09.615 +54 31 35.93   13.79 13.30     ~ 414 2
75 EM* StHA 87 Em* 12 19 43.8260999063 -10 24 23.910561390   13.41 12.97     G6 2 0
76 EM* StHA 88 Em* 12 21 51.0649169906 +06 05 20.706513653     13.593 13.188   M5 6 0
77 EM* StHA 89 Em* 12 23 03.3848981151 +47 10 56.166065669     12.5     F7 3 0
78 EM* StHA 90 Em* 12 26 44.5437669755 +47 14 23.310191162   12.66 11.64     K2V 4 0
79 EM* StHA 91 Em* 12 32 18.2979403924 +24 10 26.552133811     13.5     G6 3 0
80 EM* StHA 92 Em* 12 33 12.4810028875 -20 55 53.350840184     13.5     K0 3 0
81 EM* StHA 93 Em* 12 55 07.2116201362 +51 40 11.503046698   12.87 12.31     A7 3 0
82 EM* StHA 94 Em* 12 58 09.8247831345 -18 01 54.529379667   12.654 12.054     ~ 4 0
83 BD+49 2199 Em* 13 12 59.3162350064 +48 25 34.613023360   11.48 10.38     K2 3 0
84 EM* StHA 97 Em* 13 21 53.9767663689 +62 34 41.147101163   12.36 11.84     ~ 3 0
85 EM* StHA 96 Em* 13 22 56.8996258083 +22 41 19.208224663     12.1     G6 3 0
86 EM* StHA 99 Em* 13 43 23.7342903145 +29 34 31.608962826     12.5     G2 3 0
87 EM* StHA 100 Em* 14 01 35.2244030029 +49 44 49.012594216     14.2     ~ 4 0
88 EM* StHA 101 Em* 14 03 44.5578428395 +43 04 38.372528545     13.5     ~ 3 0
89 EM* StHA 104 Em* 14 23 41.1323939741 -00 44 57.261760944     13.5     M3 3 0
90 EM* StHA 105 Em* 14 26 12.7924400951 +14 43 32.183668242     13.5     ~ 2 0
91 EM* StHA 106 Em* 14 26 34.3337292763 +15 32 15.888649353   13.18 12.14     ~ 4 0
92 HD 127287 Em* 14 30 13.0533996941 +14 40 28.680177144   9.72 9.35     G5 10 0
93 BD+13 2833 Em* 14 44 01.7526331127 +12 43 41.063246297   10.87 9.86     G0 4 0
94 EM* StHA 109 Em* 14 52 15.7587522997 +51 20 32.436476957     13.0     F7 2 0
95 EM* StHA 110 Em* 14 56 31.2719268651 -20 35 32.125918608   12.40 12.23     G2 2 0
96 HD 133004 * 15 01 49.2435055286 +15 55 33.378198061   11.07 10.49     G 4 0
97 EM* StHA 113 Em* 15 20 17.2714724562 +50 49 27.972983914     13.5     ~ 3 0
98 BD+60 1616 Em* 15 32 50.9882195100 +59 45 06.415112061   10.31 9.81     ~ 2 0
99 BD+14 2953 Em* 15 52 19.7290010367 +14 15 19.735833375   11.51 10.26     M0 3 0
100 EM* StHA 117 Em* 15 56 35.0341066855 -09 03 50.808970402     12.5     M3 2 0
101 HD 143006 Or* 15 58 36.9127773802 -22 57 15.221492622   10.92 10.14   8.70 G5IVe 172 0
102 EM* StHA 119 Em* 15 58 39.0166658599 -07 26 59.157791389   13.990 12.330     M3 3 0
103 EM* StHA 120 Em* 16 00 38.9760438731 +49 47 39.210348907     13.5     ~ 3 0
104 EM* StHA 121 Em* 16 02 25.3747500565 +49 36 21.754771373   12.66 12.34     ~ 3 0
105 2MASS J16052157-1821412 TT* 16 05 21.5888707783 -18 21 41.442672575     13.5     K4.5e 19 0
106 EM* StHA 124 Ro* 16 13 01.3009235652 -24 06 54.763311722   14.00 12.66 12.44   ~ 7 0
107 2MASS J16185382-2053182 TT* 16 18 53.8415442039 -20 53 18.322985043     13.5     M0: 6 0
108 Haro 1-4 Or* 16 25 10.508136 -23 19 14.78820       13.15   K4e 70 0
109 BD+79 499 Em* 16 25 23.8663322618 +79 15 52.969262972   9.28 9.36     B5 3 0
110 DoAr 24 TT* 16 26 17.0747576971 -24 20 21.594542024   16.06 14.21 14.02 11.57 K7.5V 102 1
111 2MASS J16270927-2339055 TT* 16 27 09.2761798821 -23 39 05.702712053     13.138   10.816 K4IVe 5 0
112 EM* SR 13 Or* 16 28 45.2753496511 -24 28 18.830243306     13.60 12.40 10.9 M2e 126 0
113 EM* StHA 131 Em* 16 30 16.7481975597 +48 11 41.941183746   12.42 11.97     ~ 2 0
114 EM* StHA 132 Em* 16 32 19.5422240781 +13 30 39.824751383   13.08 12.44     ~ 3 0
115 HD 150143 Em* 16 37 50.9213515236 +31 05 05.819072204   9.62 9.44     F0 8 0
116 V* V1008 Oph Mi* 16 44 41.8838840044 -14 41 18.697401210     11.88     M1e 7 0
117 Hen 3-1258 Or* 16 48 45.6323559591 -14 16 35.849943900   14.94 13.34 12.84   K6 85 0
118 HD 152239 Em* 16 51 49.0707315055 +11 26 56.327505072   10.14 9.84     A2 3 0
119 EM* StHA 140 Em* 16 56 40.1092455964 +13 15 29.278950052     13.5     ~ 3 0
120 V* V854 Oph Mi? 16 59 11.9501215986 -13 30 37.979677059     14.10     ~ 7 0
121 EM* StHA 143 Em* 17 14 25.3770993505 +31 35 00.563061741   11.66 12.02     Be 5 0
122 V* V836 Oph Mi* 17 43 11.3682254130 -10 00 14.490753821           M4 9 0
123 BD+23 3183 Em* 17 47 03.2745898360 +23 19 45.353256877   10.04 10.01     Be 11 0
124 EM* StHA 146 LP* 17 59 39.8166512577 +04 59 51.511842839     13.7 11.780   M4e 5 1
125 HD 341617 pA* 18 08 20.0858893368 +24 10 43.318215616   11.41 11.39     B1IIIe 82 0
126 EM* StHA 148 Em* 18 11 21.0642830411 +44 13 22.238111253     13.5     ~ 3 0
127 EM* StHA 149 LP* 18 18 55.8709278041 +27 26 27.727677236   13.74 11.98 11.44   M2 12 0
128 BD+49 2768 Em* 18 19 21.2325281362 +49 25 16.956234979   11.07 11.19     Be 4 0
129 EM* StHA 151 LP* 18 29 16.0617398224 +30 50 57.319955138       12.08   M0e 3 0
130 EM* StHA 153 Em* 18 33 19.0617212110 +75 23 45.110434065     13.5     ~ 3 0
131 EM* StHA 152 Em* 18 41 03.9312349547 +15 23 50.405691713 11.29 11.5 11.3     B3IIIne 10 0
132 2MASS J18432793+1930053 Sy* 18 43 27.9289824065 +19 30 05.448819960     13.5     M2 4 0
133 V* V578 Lyr LP* 18 49 43.3849661281 +40 57 49.608604738           M7e: 7 0
134 EM* StHA 156 Em* 18 55 19.2814453454 -23 00 39.674899465     13.5     ~ 3 0
135 EM* StHA 157 Em* 18 58 44.7541263028 +33 36 15.829867949     13.5     M2 2 0
136 EM* StHA 160 Em* 19 10 56.4141808947 -16 50 13.463720680   11.68 11.87     Be 6 0
137 EM* StHA 161 pA* 19 21 55.2905771151 +35 02 55.025012656 10.74 11.49 11.54 11.34   Fe 29 0
138 EM* StHA 162 LP* 19 26 13.3162096596 +36 46 56.173150080     13.539   8.779 M2e 8 0
139 EM* StHA 163 Em* 19 29 16.5249021081 -22 40 40.178988449     13.5     M1e: 2 0
140 EM* StHA 165 Em* 19 31 26.9495819806 +34 31 28.700158326     13.5   9.948 M1 6 0
141 EM* StHA 166 Em* 19 34 46.8033032763 +42 26 08.275411712     11.760   11.643 B2.5Ve 17 0
142 EM* StHA 170 Em* 19 58 00.0548608231 -03 08 28.072359737     13.5     ~ 2 0
143 EM* StHA 171 Em* 20 01 53.5922622067 -02 26 57.617498428     13.5     ~ 2 0
144 HD 189812 Em* 20 02 00.9065201633 -03 51 53.593238397   10.06 9.55     A1IV 5 0
145 StM 512 LP* 20 07 58.2160966701 -09 06 02.989508427   13.5 13.5     M7:e 6 0
146 EM* StHA 174 Em* 20 12 16.2788390644 +01 13 51.681155046     13.5     M5: 2 0
147 2MASS J20224225-2107546 CV* 20 22 42.2615618517 -21 07 54.676064323     12.5     ~ 13 0
148 StM 519 Mi* 20 27 51.9381177502 -01 49 23.876353992     13.5     M7: 6 0
149 V* LT Del Sy* 20 35 57.2353984617 +20 11 27.504214453           G6III 96 1
150 EM* StHA 180 Em* 20 39 20.6054204154 -05 17 16.332022183     13.5     ~ 10 0
151 EM* StHA 182 ** 20 43 41.142 -24 33 53.19     13.5 12.50 10.10 M4.1V+M3.7V 27 0
152 HD 347471 * 20 49 03.6626485006 +23 42 45.255105326   11.11 11.01     A7 5 0
153 EM* StHA 185 Em* 20 52 14.3357575486 +20 11 09.531368554     13.5     Me 3 0
154 EM* StHA 186 Em* 20 59 25.4946018450 -02 48 44.562966647   13.566 12.011     M4 3 0
155 EM* StHA 188 Em* 21 14 23.8598897359 -03 40 29.006837769     13.5     ~ 3 0
156 BD+33 4290 Em* 21 32 43.9870080742 +34 21 19.328859538   9.542 9.31     B8 6 0
157 EM* StHA 190 Sy* 21 41 44.8880611733 +02 43 54.409367196   11.13 10.22     G5e 41 0
158 V* LS Peg DN* 21 51 57.9372002301 +14 06 53.267732979   11.89 12.10 12.18   ~ 81 0
159 EM* StHA 195 Em* 22 00 11.5355717488 +75 12 28.197720434     13.0     M2 2 0
160 UGC 12138 Sy1 22 40 17.0607019206 +08 03 13.518117435   15.30 14.45     ~ 152 0
161 V* BP Psc pA? 23 22 24.6981504234 -02 13 41.380806989   13.32 11.85     G9IIIe 35 0
162 EM* StHA 203 Em* 23 34 45.7939685952 +30 19 55.901569130     13.0     ~ 3 0
163 HD 223167 Em* 23 47 08.4792875515 +15 39 03.278774953   8.57 8.65     A0 6 0

    Equat.    Gal    SGal    Ecl

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2020.12.02-15:35:47

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