1996A&AS..120..457H

Query : 1996A&AS..120..457H

1996A&AS..120..457H - Astron. Astrophys., Suppl. Ser., 120, 457-462 (1996/December-2)

The λ 3984 feature in late-B spectroscopic binaries.

HUBRIG S. and MATHYS G.

Abstract (from CDS):

We report about a spectroscopic study aimed at searching the line Hg II λ 3984 in a sample of 28 spectroscopic binaries with primaries in the same temperature range as HgMn stars. One system, HD 75642, shows this line very prominently. In another system, HD 41040, Hg may be somewhat overabundant, while HD 87751 shows marginal Mn and P enhancement. The present study does not bring a definitive answer to the question of the relation between binarity, slow rotation, and the appearance of HgMn anomalies in late B stars, possibly because other effects (like the influence of a magnetic field), which could not be taken into consideration, are important too. In the course of this study, 11 new double-lined spectroscopic binaries were discovered, 10 of which were previously known as single-lined systems. Of particular interest among them are 4 stars that may have the Si or He weak peculiarities.

Abstract Copyright: ∼

Journal keyword(s): stars: chemically peculiar - binaries: spectroscopic - stars: rotation

Simbad objects: 47

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Number of rows : 47
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 35008 * 05 21 28.4325365328 -01 32 46.442508864   7.034 7.099     B5V 75 0
2 HD 40574 * 05 59 37.7488152096 -01 26 38.655818268 6.17 6.56 6.62     B9V 46 0
3 * 64 Ori SB* 06 03 27.3639419184 +19 41 26.026161180   5.021 5.130     B8V 127 0
4 HD 44172 SB* 06 21 00.7780754688 +14 42 17.361751572   7.22 7.33     B6V 42 0
5 V* RU Mon SB* 06 54 12.3144510432 -07 35 45.031651440   10.64 10.51     B9pv 107 0
6 * 40 Gem ** 06 59 27.9326561760 +25 54 50.987089260 5.71 6.280 6.397     B9III 94 0
7 HD 61512 * 07 38 39.7121578752 -26 19 00.106538340   7.032 7.133     A(pSi) 22 0
8 HD 62737 SB* 07 43 52.6612572096 -37 43 13.786300704   8.03 8.05     A0III 36 0
9 HD 63079 * 07 45 27.3624173688 -37 35 46.630622868   6.857 6.909     B9V 56 0
10 V* V393 Pup SB* 07 46 18.9137384712 -37 53 51.855681372   7.70 7.71     B7III 32 0
11 CD-59 1787 SB* 07 59 23.7255475440 -60 11 58.015316184   9.67 9.57     A0 24 0
12 * eps Vol SB* 08 07 55.7944779456 -68 37 01.432689816   4.270 4.398     B5III 74 0
13 HD 72208 SB* 08 31 54.4939363800 +09 48 50.757520896   6.76 6.83     B9.5VpHgMnEu 61 0
14 HD 75642 SB* 08 49 40.3992904824 -41 45 08.963875224   8.63 8.70     B9.5/A0IV 12 0
15 * kap Cnc a2* 09 07 44.8095541176 +10 40 05.519586828 4.70 5.13 5.24     B8IIImnp 376 0
16 * 19 Hya * 09 08 42.1810560840 -08 35 22.320034080 5.35 5.537 5.609     B9V 58 0
17 V* V493 Car SB* 09 57 40.2565540656 -59 42 51.715356984   8.89 8.91     B9IV 33 0
18 * nu. Leo SB* 09 58 13.3753792440 +12 26 41.300627166 5.01 5.212 5.260     B6IV 84 0
19 HD 87191 SB* 10 01 25.5555081576 -59 39 47.373315048   9.44 9.42     B9IV 20 0
20 HD 87751 SB* 10 05 07.9512505464 -60 03 10.525298400   9.28 9.30     B9IV 33 0
21 * L Car * 10 22 58.1465809448 -66 54 05.385596996 4.35 4.86 4.99     B8V 120 0
22 HD 90964 ** 10 28 40.7843605824 -56 54 38.052709416   9.7 9.5     A1V 3 0
23 HD 92190 a2* 10 37 21.7985137248 -59 10 48.482370300 8.01 8.48 8.58     B8IV 45 0
24 HD 96307 SB* 11 05 15.0857878704 -59 04 57.726219576   9.130 9.109 9.084 9.083 B9IV 36 0
25 * chi02 Hya SB* 11 05 57.5699938080 -27 17 16.272708396   5.64 5.71     B8V 119 0
26 HD 96881 SB* 11 08 21.6629444544 -59 33 22.897035576   9.74 9.57     A0IV 29 0
27 HD 96896 SB* 11 08 36.4402710600 -58 31 59.766168432   9.741 9.664 9.628 9.597 A0V 27 0
28 HD 101897 SB* 11 43 30.6811003560 -15 02 34.170003456   6.87 6.91     B9V 25 0
29 HD 102010 SB* 11 43 57.7295828400 -63 22 47.044119288   9.16 9.10     B8II 22 0
30 * eta Mus SB* 13 15 14.9353076188 -67 53 40.529009001   4.687 4.780     B7III+B7III 113 1
31 * h Cen SB* 13 53 12.5382897240 -31 55 39.430392240 4.04 4.59 4.73     B5IVp 108 0
32 V* V869 Cen SB* 14 09 35.0324964096 -51 30 16.832689380   5.913 5.961     B8V 96 0
33 HD 130081 ** 14 51 30.1516219 -74 55 59.179755   6.83 6.83     B8V 17 0
34 * iot Lib SB* 15 12 13.2902543 -19 47 30.159216 4.08 4.46 4.54 4.58 4.67 B9IVpSi 184 0
35 HD 139160 SB* 15 37 28.4996647464 -26 16 47.509681800 5.76 6.171 6.194     B9IV 96 0
36 * psi02 Lup SB* 15 42 41.0197420380 -34 42 37.467073334 4.08 4.576 4.721     B5V 122 0
37 * 25 Ser SB* 15 46 05.6365266672 -01 48 15.085342728 4.96 5.37 5.39     B8IV/V 121 0
38 HD 159082 SB* 17 32 14.8801753080 +11 55 48.177391296 6.260 6.440 6.450     B9.5V 94 0
39 HD 161165 SB* 17 43 49.9632353544 +05 25 13.778172480   8.79 8.73     B8 62 0
40 HD 161480 SB* 17 45 33.6534906888 +05 42 56.493010692   7.71 7.70     B7V 96 0
41 V* V2323 Oph SB* 17 46 36.4220060880 +06 07 14.243711268   7.74 7.76     B7III 83 0
42 V* V2324 Oph El* 17 46 46.7050272128 +05 33 53.718933313   8.35 8.27     B8VpHgMn 70 0
43 HD 161733 Ro* 17 47 02.1718300152 +05 41 30.598990944   8.028 8.002     B6V 80 0
44 HD 161701 SB* 17 47 36.7796349672 -14 43 32.974809564   5.930 5.923     B9pHgMn 98 0
45 HD 162085 SB* 17 50 43.7099457000 -35 31 55.125163884   7.83 7.83     B8II 28 0
46 HD 162515 SB* 17 52 55.7709053280 -35 01 08.012539056   6.57 6.57     B9III 83 0
47 HD 177517 * 19 05 41.1802109904 -15 39 37.510548984 5.70 5.95 5.97     B8III(pSi) 81 0

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