2000MNRAS.316...19L

Query : 2000MNRAS.316...19L

2000MNRAS.316...19L - Mon. Not. R. Astron. Soc., 316, 19-32 (2000/July-3)

Surface abundances of light elements for a large sample of early B-type stars - I. Spectral observations of 123 stars: measurements of hydrogen and helium lines, infrared photometry.

LYUBIMKOV L.S., LAMBERT D.L., RACHKOVSKAYA T.M., ROSTOPCHIN S.I., TARASOV A.E., POKLAD D.B., LARIONOV V.M. and LARIONOVA L.V.

Abstract (from CDS):

High-resolution spectral observations of 123 B0-B5 stars in the main sequence evolutionary phase were obtained at two observatories, namely the McDonald Observatory (McDO) and the Crimean Astrophysical Observatory (CrAO). Accurate equivalent widths W of two Balmer lines, Hβ and Hγ, and ten Hei lines were obtained for all the stars, as well as of the Heiiλ4686 line for the hottest ones. A careful analysis of the measured equivalent widths was performed. It is shown that there is a very good agreement between the W values derived from the McDO and CrAO spectra for 14 common stars. A comparison with published data leads to the conclusion that the W values measured earlier by some authors for strong Hei lines are very likely to be underestimated. Infrared photometric observations in the J, H, and K bands were performed for 70 programme stars. All these data will be used in other papers: in particular for the Teff and logg determination and for the He, C, N and O abundance analyses.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: atmospheres - stars: early-type

Simbad objects: 124

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Number of rows : 124
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 829 Pu* 00 12 50.2449532560 +37 41 37.165885188 5.9 6.577 6.708     B3III 75 0
2 HD 6300 * 01 04 46.7991860016 +51 00 35.211986388   6.437 6.520     B3V 72 0
3 HD 11857 V* 01 58 33.2351547624 +61 41 52.045134828   5.963 6.004     B7I 64 0
4 * 34 Per * 03 29 22.0494961351 +49 30 32.230623601 4.01 4.610 4.735     B3V 172 0
5 V* KP Per bC* 03 32 38.9776919424 +44 51 20.734775568 5.7 6.44 6.41     B2IV 133 0
6 HD 21856 Pu* 03 32 40.0150232424 +35 27 42.207495156 4.96 5.807 5.900     B1V 192 0
7 HD 24131 * 03 51 53.7187356648 +34 21 32.823349956 4.96 5.730 5.772     B1V 183 0
8 HD 25631 * 04 03 24.7472481504 -20 08 37.665824028   6.271 6.450     B3V 78 0
9 * 40 Tau ** 04 03 44.6044538328 +05 26 08.225802924 4.68 5.25 5.33     B5V 141 0
10 * d Eri * 04 20 42.8341039320 -07 35 32.985711240 5.23 5.710 5.838     B7II 78 0
11 * 62 Tau * 04 23 59.7627483096 +24 18 03.527065188 6.18 6.499 6.337     B3V 237 0
12 HD 30122 * 04 45 42.4670020968 +23 37 40.775315448   6.386 6.329     B 71 0
13 HD 31726 * 04 57 44.6845893336 -14 13 54.901969680   5.939 6.139     B2V 136 0
14 * psi Eri ** 05 01 26.3457823592 -07 10 26.273231188 3.87 4.61 4.78     B3IV 114 0
15 HD 32612 * 05 03 52.1246868960 -14 22 12.827588844   6.223 6.406     B2IV 87 0
16 * eta Aur PM* 05 06 30.8941413263 +41 14 04.112669983 2.33 3.00 3.18 3.23 3.40 B3V 391 0
17 HD 34447 * 05 16 48.2644219272 -17 08 32.422490916   6.385 6.548     B2V 63 0
18 HD 34798 Pu* 05 19 17.4371850792 -18 31 11.705799792 5.65 6.23 6.39     B5Vs 93 0
19 * lam Lep ** 05 19 34.5223081894 -13 10 36.369844928 3.03 4.04 4.29 4.41 4.69 B0.5V 322 0
20 HD 35007 SB* 05 21 31.8439978656 -00 24 59.374321704 4.91 5.56 5.68     B5II/III 97 0
21 * 23 Ori SB* 05 22 50.0039865384 +03 32 40.051458204 3.99 4.86 5.00 5.05 5.23 B2IV/V 258 0
22 * 8 Lep SB* 05 23 30.1560451200 -13 55 38.470509624   5.026 5.229     B2IV 88 0
23 HD 35299 Pu* 05 23 42.3086240496 -00 09 35.347024692 4.610 5.490 5.700 5.77 5.96 B1.5V 217 0
24 * o Tau * 05 27 38.0841633883 +21 56 13.085083102 3.98 4.719 4.868     B2.5V 168 0
25 HD 35912 * 05 28 01.4701489584 +01 17 53.700185940 5.52 6.212 6.380     B2V 167 0
26 HD 36166 Pu* 05 29 54.7742113464 +01 47 21.333288804 4.74 5.562 5.745     B2V 130 0
27 HD 36285 * 05 30 20.7537108216 -07 26 05.338118076 5.29 6.130 6.313     B2V 130 0
28 HD 36430 * 05 31 20.8933113744 -06 42 30.168166680 5.29 6.041 6.208     B3V 144 0
29 * ups Ori SB* 05 31 55.8599595648 -07 18 05.535884975 3.30 4.36 4.63 4.75 5.01 O9.7V 426 0
30 HD 36591 V* 05 32 41.3510096736 -01 35 30.595447356 4.240 5.15 5.34     B1IV 255 0
31 * 35 Ori Pu* 05 33 54.2825076984 +14 18 20.043792792   5.465 5.593     B3V 74 0
32 HD 36741 * 05 33 57.5863853712 +01 24 27.518795784 5.62 6.390 6.571     B2III/IV 98 0
33 HD 36779 * 05 34 03.8907558912 -01 02 08.616145200 5.24 6.05 6.22     B2/3IV/V 107 0
34 HD 36959 Y*O 05 35 01.0070120496 -06 00 33.366713364 4.52 5.33 5.53     B1V 223 0
35 HD 36960 * 05 35 02.6823091513 -06 00 07.308349203 3.52 4.50 4.72     B0.5V 283 0
36 * lam Ori B Y*? 05 35 08.4812956320 +09 56 06.099512244       5.29   B0.5V 147 0
37 HD 37016 ** 05 35 22.3136951928 -04 25 27.524552412 5.4         B9III/IV 120 0
38 HD 37040A * 05 35 31.0756116265 -04 21 50.563049764   6.31 6.45     B3V 97 0
39 HD 37040 ** 05 35 31.0791596 -04 21 50.577378 5.50 6.24 6.38     B3V+B7V 100 0
40 HD 37150 * 05 36 15.0278258688 -05 38 52.514534220 5.52 6.34 6.51     B3III/IV 127 0
41 HD 37232 Y*O 05 37 19.3111223928 +08 57 06.748529796 5.13 5.930 6.095     B2IV-V 91 0
42 HD 37303 bC? 05 37 27.3575332104 -05 56 18.204499212 4.93 5.817 6.024     B2V(n) 134 0
43 HD 37356 V* 05 37 53.3851682160 -04 48 50.525298828 5.42 6.14 6.18 6.11 6.11 B3V 153 0
44 HD 37481 bC? 05 38 37.9735682376 -06 34 26.246963640 4.82 5.73 5.96     B1.5IV 141 0
45 HD 37744 V* 05 40 37.2968503824 -02 49 30.852237396 5.14 6.02 6.22     B1.5V 164 0
46 * 133 Tau V* 05 47 42.9074397024 +13 53 58.545937968 4.46 5.12 5.29     B2IV-V 99 0
47 * 55 Ori Pu* 05 51 21.9836353224 -07 31 04.810910700 4.32 5.147 5.341     B2V 108 0
48 HD 39777 * 05 54 34.6960877928 -04 03 52.967826720 5.58 6.381 6.551     B2III/IV 101 0
49 HD 41814 Pu* 06 06 51.8899774752 -11 10 24.944086740   6.489 6.636     B3V 67 0
50 HD 42690 * 06 11 51.8143365264 -06 33 01.020314772 4.07 4.848 5.040     B2V 106 0
51 HD 42927 Pu* 06 12 46.3271308008 -17 45 47.628442764   6.340 6.501     B5II/III 51 0
52 HD 43112 * 06 15 08.4727512648 +13 51 03.959285616 4.7 5.676 5.894     B1V 126 0
53 HD 44173 * 06 20 52.1159090784 +11 45 22.400298648 5.85 6.420 6.534     B5III 61 0
54 HD 45321 * 06 26 34.4437338912 -04 35 50.630803548   5.989 6.133     B5V 80 0
55 * 10 Mon bC* 06 27 57.5680324346 -04 45 43.731399093 4.11 4.861 5.041     B2V 140 0
56 HD 46064 * 06 30 34.8860922360 -13 08 53.425211676   6.00 6.14     B2III 66 0
57 HD 46189 * 06 30 46.2847122360 -27 46 10.487891388 5.1 5.745 5.903     B3IV/V 62 0
58 HD 48434 s*b 06 43 38.6456583720 +03 55 57.109225980 4.99 5.88 5.90     B0III 166 0
59 * 16 Mon SB* 06 46 32.4145190352 +08 35 13.767386136   5.76 5.92     B3V 99 0
60 HD 49567 * 06 49 03.6560827200 +01 00 07.442689536 5.34 6.001 6.150     B3III 81 0
61 HD 50093 * 06 50 36.9593160984 -25 46 42.219563736 5.35 6.131 6.314     B2III/IV 58 0
62 HD 51283 Pu* 06 55 46.9280647944 -22 56 29.193346032 4.36 5.12 5.30     B1III 98 0
63 * iot CMa s*b 06 56 08.2245944314 -17 03 15.259069948 3.62 4.297 4.385 6.40   B3Ib 184 0
64 HD 51925 ** 06 58 07.5533495 -27 09 51.781515 5.32 6.181 6.361     B2V 51 0
65 * eps CMa * 06 58 37.54876 -28 58 19.5102 0.36 1.29 1.50 1.59 1.80 B1.5II 519 0
66 HD 52140 * 06 58 43.6970349912 -30 59 52.929503196   6.245 6.395     B3V 49 0
67 HD 52348 * 07 00 08.2807638072 -20 09 30.328883388   6.166 6.305     B3V 47 0
68 HD 52559 * 07 01 55.2600175944 +05 33 25.752763980 5.93 6.544 6.578     B2IV-V 70 0
69 HD 54224 * 07 06 59.9877926760 -26 39 24.328389924 5.63 6.417 6.591     B3III 63 0
70 HD 54669 * 07 08 49.4015520624 -24 02 37.666620564 5.63 6.46 6.65     B3/5V 59 0
71 HD 54764 Pu* 07 09 33.3632699976 -16 14 04.233013116 5.320 6.120 6.080 7.42   B1Ib/II 85 0
72 HD 55857 Pu* 07 13 36.4494556488 -27 21 22.891993452 4.85 5.876 6.101 7.29   B2II 117 1
73 HD 55879 * 07 14 28.2529558464 -10 18 58.483822572 4.88 5.85 6.03 7.35   O9.7III 180 0
74 HD 56342 * 07 15 21.0681331056 -30 41 11.217833988   5.182 5.337     B2V 67 0
75 V* HQ CMa EB* 07 20 54.9153770208 -26 57 49.812490368   5.816 5.986     B3V 56 0
76 HD 58325 * 07 23 54.4330933464 -30 13 01.243270092 5.6 6.404 6.587     B2III 58 0
77 HD 60325 * 07 33 22.1853581952 -14 20 17.902042980 5.46 6.17 6.21     B2II 90 0
78 V* PT Pup bC* 07 36 41.0352383592 -19 42 08.425020168 4.65 5.524 5.699     B2III 155 0
79 V* V390 Pup SB* 07 44 34.1696593944 -24 40 26.686528896   5.43 5.60     B2II 86 0
80 HD 63271 * 07 47 12.5542841784 -22 31 10.235001252 4.90 5.68 5.87     B1/2V 76 0
81 * 14 Pup * 08 04 41.4177505440 -19 43 41.344028436   5.946 6.105     B3III 48 0
82 HD 87015 Pu* 10 02 48.9496106808 +21 56 57.326188596 4.73 5.485 5.663     B2V 100 0
83 * 23 Sex Pu* 10 21 02.0059724664 +02 17 22.997775480 5.9 6.547 6.644     B2IV/V 114 0
84 HD 154445 * 17 05 32.2587926880 -00 53 31.437713328 5.10 5.73 5.61 5.39 5.34 B1V 276 0
85 * iot Her bC* 17 39 27.8868980278 +46 00 22.792978043 2.940 3.630 3.800     B3IV 470 1
86 HD 161056 * 17 43 47.0221609752 -07 04 46.594311996 6.26 6.68 6.32 5.94 5.67 B3II/III 201 0
87 * 102 Her * 18 08 45.4919267342 +20 48 52.404584093 3.38 4.177 4.347     B2IV 194 0
88 HD 170580 ** 18 30 05.1198164760 +04 03 55.271232360 6.29 6.80 6.69     B2V 106 0
89 HD 170740 SB* 18 31 25.6939245072 -10 47 45.008376432 5.51 5.96 5.72     B2V+ 210 1
90 HD 174179 Be* 18 47 57.3738334416 +31 45 24.610426812 5.25 5.910 6.054     B3IVp 62 0
91 * nu.01 Lyr V* 18 49 45.9182272128 +32 48 46.146442608 5.04 5.75 5.91     B3IV 77 0
92 HD 175156 * 18 54 43.1136473552 -15 36 10.932683925   5.208 5.086     B3II 136 0
93 * 20 Aql V* 19 12 40.7117853648 -07 56 22.263784872 5.03 5.47 5.34     B2/3II 240 0
94 * 2 Vul Pu* 19 17 43.6353905520 +23 01 31.941802308 4.64 5.43 5.43     B1IIIn 146 0
95 * 2 Cyg ** 19 24 07.5783613224 +29 37 16.808049156 4.16 4.851 4.977     B3/4+B6/9 133 0
96 HD 183144 V* 19 27 33.9075587568 +14 16 56.928364212 5.73 6.225 6.303     B4III 56 0
97 * 8 Cyg Pu* 19 31 46.3218386 +34 27 10.687443 3.95 4.60 4.72     B3IV 130 0
98 * iot Aql * 19 36 43.2777028800 -01 17 11.758614396 3.84 4.28 4.36 4.34 4.42 B5III 180 0
99 * kap Aql * 19 36 53.4488871022 -07 01 38.924816492 4.050 4.930 4.960 4.90 4.94 B0.5IIIn 354 0
100 HD 185330 V* 19 36 56.6493724800 +38 23 01.768931556 5.72 6.368 6.500     B5II-III 73 0
101 HD 186660 * 19 45 52.2334869192 -02 53 00.441074076 5.99 6.53 6.48     B2III/IV 62 0
102 HD 188252 Pu* 19 52 07.1662436976 +47 55 54.461806320 4.87 5.722 5.897     B2III 84 0
103 V* V2100 Cyg a2* 19 59 15.3468080976 +52 03 20.488833576 5.29 5.954 6.125     B5III 66 0
104 HD 191263 ** 20 08 38.2787244864 +10 43 33.122701380 5.53 6.196 6.339     B2.5V 59 0
105 HD 196035 Pu* 20 34 09.9833064792 +20 59 06.671076828 5.66 6.336 6.470     B3IV 65 0
106 HD 196775 * 20 39 04.9680556008 +15 50 17.511192132 5.110 5.820 5.980     B3V 66 0
107 * 51 Cyg * 20 42 12.6305206584 +50 20 24.066965544 4.64 5.286 5.401     B2V 86 0
108 HD 198781 Pu* 20 49 17.3909110680 +64 02 32.131010292 5.75 6.472 6.451     B0.5V 112 0
109 HD 198820 * 20 52 00.3893179704 +32 50 56.029508808 5.67 6.29 6.44     B3III 89 0
110 HD 202214 ** 21 11 48.23752 +59 59 11.8024 4.97         O9.5IV 150 0
111 HD 205139 * 21 30 59.2916490744 +60 27 33.954560208 4.92 5.604 5.522     B1Ib 104 0
112 HD 207563 * 21 49 26.8665291504 +20 27 44.800800696 5.55 6.162 6.267     B2V 73 0
113 * 18 Peg * 22 00 07.9250290512 +06 43 02.810180604 5.31 5.88 6.00     B3III 119 0
114 HD 209339 ** 22 00 39.2649125112 +62 29 16.063886004 5.9 8.73 8.51 7.61   O9.7IV 196 0
115 HD 209419 * 22 01 50.5866647688 +52 52 56.100144360 5.14 5.658 5.776     B5III 71 0
116 * 35 Aqr * 22 08 58.9903231176 -18 31 10.536229236   5.629 5.793     B2III 94 0
117 HD 212883 ** 22 26 45.55822 +37 26 37.3406 5.57         B2V+B9Vn 92 0
118 HD 212986 * 22 26 59.1778485600 +56 26 00.838979844   6.472 6.577     B7III 58 0
119 HD 212978 ** 22 27 26.4985235856 +39 48 36.093227436 5.23 6.00 6.16     B2V 119 0
120 HD 217101 * 22 57 40.7378078160 +39 18 31.592840184 5.23 6.03 6.18     B2IV-V 123 0
121 HD 217811 V* 23 02 45.1478611209 +44 03 31.498436363 5.8 6.38 6.42     B2V 85 1
122 * 1 Cas * 23 06 36.8177774777 +59 25 11.135356051 3.93 4.771 4.840     B0.5III 254 0
123 HD 218537 ** 23 07 47.7465973 +63 38 00.473547 5.64 6.24 6.26     B3V 110 0
124 HD 223128 bC? 23 46 36.7365639936 +66 46 56.081325468 5.15 5.883 5.937     B2IV 74 0

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