1999MNRAS.302..145C

Query : 1999MNRAS.302..145C

1999MNRAS.302..145C - Mon. Not. R. Astron. Soc., 302, 145-151 (1999/January-1)

1-mu-m spectroscopy of normal OB stars.

CONTI P.S. and HOWARTH I.D.

Abstract (from CDS):

We have obtained spectra of 70 normal OB stars in the near-IR I (1-µm) band. The strongest features are those due to lines of the hydrogen Paschen series and neutral and ionized helium, which are, for the most part, in absorption. The information content in this spectral range is sufficient for only a rough classification of hot stars into `early O', `late O' and `B' types. Curiously, the leading He i triplet line, He i λ1.0830 µm, is usually not detectable, although in a few stars it is in emission; its behaviour generally correlates with the leading helium singlet line, He i λ 2.058 µ m. These two features appear to be present in emission only in stars with extremes of mass loss or wind extension.

Abstract Copyright: 1998, Royal Astronomical Society

Journal keyword(s): stars: atmospheres - stars: early - infrared: stars

Simbad objects: 66

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Number of rows : 66
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 225094 s*b 00 03 25.7156345788 +63 38 25.861065311 6.01 6.56 6.22 5.90 5.67 B2.9Iab 150 0
2 HD 108 SB* 00 06 03.3890541936 +63 40 46.771220928 6.79 7.58 7.40     O4-8f?p 338 0
3 HD 14947 s*b 02 26 46.9899705528 +58 52 33.118732380 7.83 8.44 7.98     O4.5If 262 0
4 HD 15558 Y*O 02 32 42.5366901168 +61 27 21.572901360 7.82 8.37 7.87 7.34 6.94 O4.5III(f) 324 0
5 HD 15570 Y*O 02 32 49.4207394600 +61 22 42.089384892 8.40 8.80 8.11 7.41 6.86 O4If 316 0
6 HD 15629 Y*O 02 33 20.5873992264 +61 31 18.188762844 8.23 8.85 8.42     O4.5V((fc)) 255 0
7 HD 16691 Em* 02 42 52.0259349000 +56 54 16.463813796 10.187 9.07 8.70     O4If 163 0
8 HD 17520 ** 02 51 14.4527711976 +60 23 10.057239852 7.86 8.54 8.24 7.96 7.73 O9.2Ve+O8Vz 151 0
9 HD 17603 * 02 51 47.7980420280 +57 02 54.469902552 8.68 9.10 8.45     O7.5Ib(f) 95 0
10 * alf Cam s*b 04 54 03.0113886719 +66 20 33.633625509 3.47 4.34 4.29 4.18 4.18 O9Ia 675 1
11 V* AE Aur Or* 05 16 18.1493304816 +34 18 44.344404000 5.48 6.18 5.96     O9.5V 597 1
12 * chi02 Ori s*b 06 03 55.1843706432 +20 08 18.428141364 4.24 4.91 4.63 4.32 4.10 B2Ia 465 0
13 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1190 1
14 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 0
15 HD 152003 s*b 16 52 47.3744351712 -41 47 08.990966004 6.90 7.47 7.08 6.72 6.35 O9.7IabNwk 132 1
16 HD 152147 SB* 16 53 28.6179497064 -42 07 17.050155420 7.20 7.76 7.34 6.97 6.60 O9.7IbNwk 116 0
17 HD 152249 s*b 16 54 11.6395658856 -41 50 57.295111524 5.91 6.65 6.45     OC9Iab 254 0
18 HD 152405 SB* 16 54 55.3693932960 -40 31 29.393197572 6.71 7.42 7.29 7.12 6.96 O9.7II 127 1
19 HD 152424 s*b 16 55 03.3294878112 -42 05 26.990821824 6.11 6.69 6.27 7.49   OC9.2Ia 210 0
20 HD 154811 * 17 09 53.0865607752 -47 01 53.186262060 6.71 7.32 6.98 7.71   OC9.7Ib 94 0
21 HD 156212 * 17 17 27.5962076424 -27 46 00.805226124 7.91 9.13 8.74 8.80   B0Iab 65 0
22 HD 165052 SB* 18 05 10.5506592816 -24 23 54.847798080 6.16 6.98 6.87 7.77   O6.5V((f))z 282 1
23 * mu. Sgr s*b 18 13 45.8088401 -21 03 31.794073 3.60 4.07 3.85 3.58 3.38 B8Iab(e) 354 0
24 * 15 Sgr s*b 18 15 12.9063291264 -20 43 41.767600368 4.64 5.42 5.37 5.27 5.19 O9.7Iab 268 0
25 HD 167771 SB* 18 17 28.5570708120 -18 27 48.424975128 5.81 6.65 6.54 7.43   O7III((f))+O8III 189 0
26 HD 167971 s*b 18 18 05.8947362832 -12 14 33.313601112 7.89 8.27 7.50 6.68 6.279 O8Iaf(n)+O4/5 324 0
27 HD 168075 Y*O 18 18 36.0418343184 -13 47 36.449731536 8.62 9.22 8.77 9.45   O7V(n)((f))z 149 0
28 HD 183143 s*b 19 27 26.5636061496 +18 17 45.193019136 8.25 8.08 6.86 5.74 4.79 B7Ia+ 464 0
29 HD 188209 s*b 19 51 59.0687638680 +47 01 38.419078944 4.61 5.55 5.63 5.54 5.64 O9.5Iab 322 0
30 * 9 Sge s*b 19 52 21.7649260368 +18 40 18.751320984 5.32 6.24 6.23     O7.5Iabf 308 1
31 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
32 HD 190429 ** 20 03 29.39885 +36 01 30.5082 5.98 6.78 6.63     O4If+O9.5II 209 0
33 HD 190429A s*b 20 03 29.3990011718 +36 01 30.518594776   7.20 7.09     O4If 87 0
34 HD 190864 Em* 20 05 39.8022808800 +35 36 27.991297908 7.18 7.93 7.78     O6.5III(f) 233 0
35 HD 191423 * 20 08 07.1135347944 +42 36 21.962454480 7.43 8.19 8.03     ON9II-IIInn 119 0
36 V* V2011 Cyg SB* 20 12 33.1203741480 +40 16 05.445674868 7.32 7.85 7.55     O4.5V(n)((f)) 221 0
37 HD 192639 s*b 20 14 30.4275801672 +37 21 13.816276704 6.83 7.46 7.11     O7.5Iabf 309 0
38 * P Cyg s*b 20 17 47.2019733389 +38 01 58.549132671 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1200 1
39 HD 228841 Em* 20 18 29.6946566952 +38 52 39.774824724 9.08 9.50 9.01     O6.5Vn((f)) 66 0
40 HD 193514 Em* 20 19 08.4971150880 +39 16 24.253036608 7.32 7.83 7.38     O7Ib(f) 193 0
41 HD 229196 Pu* 20 23 10.7840350992 +40 52 29.847533160 9.29 9.32 8.59     O6II(f) 123 0
42 HD 229232 SB* 20 23 59.1861751224 +39 06 15.291161496 10.17 10.303 9.500 9.330   O4Vn((f)) 44 0
43 BD+40 4220 s*b 20 32 22.4238071594 +41 18 18.942475904 11.32 10.61 9.185     O7Iafep 414 0
44 Schulte 12 s*b 20 32 40.9572199728 +41 14 29.279036940 16.1 14.45 11.702     B3-4Ia+ 453 0
45 Schulte 22 SB* 20 33 08.799 +41 13 18.21 14.33 13.59 11.55     O3If*+O6V((f)) 76 0
46 Schulte 9 s*b 20 33 10.7362926720 +41 15 08.222370372 13.38 12.77 10.96     O5I+O4III 243 0
47 Schulte 7 * 20 33 14.1095938872 +41 20 21.904113804 12.24 12.00 10.55     O3If* 153 0
48 Schulte 8C * 20 33 17.9820761856 +41 18 31.194812988 12.2 11.43 10.19     O4.5III(fc) 89 0
49 BD+41 3804 s*b 20 33 46.1145474912 +41 33 00.991426968 11.82 11.41 9.88     O9.7Iab 104 0
50 BD+41 3807 SB* 20 34 08.5147948176 +41 36 59.408503092 11.74 11.52 10.03     O5.5Ifc 137 0
51 * 55 Cyg s*b 20 48 56.2915921440 +46 06 50.883645024 4.83 5.28 4.86 4.41 4.10 B2.5Ia 506 0
52 HD 199579 Y*O 20 56 34.7779063080 +44 55 29.000891928 5.16 6.01 5.96     O6.5V((f))z 375 0
53 HD 201345 * 21 07 55.4150161776 +33 23 49.228548972   7.611 7.764     ON9.2IV 186 0
54 HD 201254 * 21 07 57.4055874912 +14 40 25.235638392 6.220 6.890 7.020     B3V 43 0
55 HD 202124 s*b 21 12 28.3896178416 +44 31 54.129118980 7.33 7.94 7.76     O9Iab 104 0
56 * 68 Cyg SB* 21 18 27.1862219256 +43 56 45.399147864 4.05 4.99 5.00     O7.5IIIn((f)) 383 0
57 HD 206267 Y*O 21 38 57.6195772032 +57 29 20.554016280 5.09 5.83 5.62   5.56 O6.0V((f))+O9:V 520 0
58 HD 207198 Y*? 21 44 53.2791389640 +62 27 38.048647248 5.61 6.25 5.94 5.66 5.49 O8.5II 365 0
59 * 18 Peg * 22 00 07.9250290512 +06 43 02.810180604 5.31 5.88 6.00     B3III 119 0
60 * 19 Cep * 22 05 08.7897533088 +62 16 47.332569936 4.36 5.19 5.11 4.95 4.92 O9Ib 397 0
61 * lam Cep s*b 22 11 30.5765111040 +59 24 52.154264880 4.55 5.29 5.05 4.77 4.62 O6.5I(n)fp 705 1
62 HD 210809 s*b 22 11 38.6004719208 +52 25 47.950615308 6.7 7.61 7.56     O9Iab 223 0
63 * 10 Lac ** 22 39 15.6786372 +39 03 00.971152 3.650 4.670 4.880 4.98 5.19 O9V 790 0
64 HD 215835 SB* 22 46 54.1107754872 +58 05 03.533752788 8.24 8.85 8.629   8.049 O5.5V((f))+O6V((f)) 260 0
65 HD 217086 Y*O 22 56 47.1887590800 +62 43 37.657173900 7.88 8.30 7.66 8.35   O7Vnn((f))z 263 0
66 HD 218915 s*b 23 11 06.9483955128 +53 03 29.652921252 6.32 7.22 7.20     O9.2Iab 206 1

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