1994A&A...290..563K

Query : 1994A&A...290..563K

1994A&A...290..563K - Astronomy and Astrophysics, volume 290563-572 (1994/10-2)

Ultraviolet FeIII lines in the spectra of high galactic latitude early-type stars.

KENDALL T.R., CONLON E.S., DUFTON P.L. and KEENAN F.P.

Abstract (from CDS):

Using high resolution spectral data from the International Ultraviolet Explorer satellite, we present qualitative and quantitative comparisons of blends of Fe III absorption lines in the region 1890A≤λ≤1930A for a sample of fifteen high latitude B-type and standard stars. Standard and halo stars were matched in effective temperature and surface gravity using Stroemgren [c1] and Hβ photometry, and LTE model atmosphere codes were used to investigate whether they had similar iron abundances. We conclude that while most of the halo stars have Population I iron abundances and may be young objects, one star, HD 177566, has significant iron and silicon depletions and is most probably an old, evolved star. In view of the coincidence of the atmospheric parameters of this star with those of young B-type stars, we consider a post-AGB evolutionary status to be likely for HD 177566.

Abstract Copyright: ∼

Journal keyword(s): stars: HD 177566, abundances, early-type, Population II - ultraviolet: stars

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 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 * gam Peg bC* 00 13 14.1523490172 +15 11 00.954346538 1.75 2.61 2.84 2.94 3.13 B2IV 720 0
3 * zet Cas bC? 00 36 58.2844874846 +53 53 48.877599163 2.58 3.47 3.66 3.74 3.95 B2IV 470 0
4 HD 18100 bC? 02 53 40.8050199600 -26 09 20.428125408   8.23 8.44     B5II/III 104 0
5 HD 22586 * 03 35 38.0490446928 -52 33 23.927820948 6.93 7.85 8.03     B1/2III 72 0
6 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 315 0
7 * zet Per s*b 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 881 0
8 * pi.04 Ori SB* 04 51 12.3657730111 +05 36 18.373859886 2.700 3.500 3.680 3.74 3.90 B2III 319 0
9 * lam Lep ** 05 19 34.5223081894 -13 10 36.369844928 3.03 4.04 4.29 4.41 4.69 B0.5V 322 0
10 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
11 HD 36959 Y*O 05 35 01.0070120496 -06 00 33.366713364 4.52 5.33 5.53     B1V 223 0
12 HD 36960 * 05 35 02.6823091513 -06 00 07.308349203 3.52 4.50 4.72     B0.5V 283 0
13 HD 37061 Or* 05 35 31.3649044920 -05 16 02.582064192 6.44 7.09 6.83     O9.5V 376 0
14 * eps Ori s*b 05 36 12.81335 -01 12 06.9089 0.48 1.51 1.69 1.76 1.93 B0Ia 921 0
15 * kap Ori s*b 05 47 45.3888404 -09 40 10.577707 0.87 1.88 2.06 2.09 2.27 B0.5Ia 588 0
16 * 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
17 HD 46056 Y*O 06 31 20.8608343776 +04 50 03.842554740 7.60 8.36 8.16 8.16 8.09 O8Vn 242 0
18 * eps CMa * 06 58 37.54876 -28 58 19.5102 0.36 1.29 1.50 1.59 1.80 B1.5II 519 0
19 * eta Hya bC* 08 43 13.4757536071 +03 23 55.182801587 3.380 4.100 4.300 4.37 4.56 B3V 418 1
20 * f Vel SB* 08 50 33.4606230120 -46 31 45.075306720 3.92 4.90 5.11 5.20 5.36 B1Ib 165 0
21 HD 84971 s*b 09 48 44.4861544032 -02 42 48.974510988 7.76 8.48 8.64     B3II 73 0
22 * J Vel Be* 10 20 54.7957129824 -56 02 35.655748188 3.80 4.38 4.51 6.02   B5II 112 0
23 HD 100340 HS? 11 32 49.9414410936 +05 16 36.231905676 8.906 9.881 10.115 10.219 10.353 B0 105 0
24 CD-72 758 HS? 11 58 59.9569731456 -73 25 48.320897844 9.69 10.64 10.61 10.91   OB 44 0
25 * alf Vir bC* 13 25 11.57937 -11 09 40.7501 -0.20 0.74 0.97 1.06 1.30 B1V 877 1
26 HD 121968 * 13 58 51.1663111056 -02 54 52.325640252 9.160 10.071 10.256 10.330 10.429 B2II 112 0
27 * e Lup SB* 15 12 49.5875193435 -44 30 01.490425801 3.98 4.638 4.806     B3IV/V 90 0
28 * ome Sco bC* 16 06 48.4249866846 -20 40 09.079866331 3.10 3.92 3.97 3.91 3.99 B1V 492 0
29 * i Sco * 16 30 12.4752690460 -25 06 54.796568058 3.93 4.72 4.79 4.85 4.99 B2.5V 319 1
30 HD 148688 s*b 16 31 41.7687715992 -41 49 01.732565676 5.16 5.78 5.39 5.05 4.70 B1Iaeqp 170 0
31 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
32 CD-74 1139 * 16 50 50.1407392416 -74 32 18.597983280 8.97 9.97 10.18     O9.5V 47 0
33 * lam Sco bC* 17 33 36.52012 -37 06 13.7648 0.52 1.49 1.63     B2IV+DA7.9 404 0
34 HD 173502 bC* 18 46 55.8918318240 -29 57 35.886043872 8.77 9.61 9.70     B0.5III 62 0
35 * sig Sgr ** 18 55 15.92650 -26 17 48.2068 1.06 1.923 2.067     B2.5V 284 1
36 HD 177566 pA* 19 07 07.8863699904 -41 43 16.014829872 9 9.97 10.17     B5/7Ib 53 0
37 HD 195455 * 20 32 14.6954243880 -24 04 03.661637772 8.12 9.02 9.20     B1/2III 68 0
38 V* SY Equ bC* 21 23 28.8086293896 +09 55 54.920417808 7.37 8.33 8.53     B0.5IIIn 92 0
39 * 9 Cep s*b 21 37 55.2241394424 +62 04 54.990376788 4.49 5.03 4.73 4.42 4.24 B2Ib 315 0
40 HD 206144 Pu* 21 40 33.3796014624 -17 36 00.560827224 8.36 9.22 9.34     B2II(n) 66 0
41 * pi.02 Cyg SB* 21 46 47.6097792927 +49 18 34.454260528 3.4 4.11 4.18     B2.5III 180 0
42 * 14 Cep SB* 22 02 04.5726270264 +58 00 01.309758516 4.77 5.551 5.542     O9IV(n)var+B1:V: 262 0
43 HD 214080 V* 22 36 06.4357076856 -16 23 16.760720868 6.00 6.81 6.93 6.99 7.06 B1/2Ib 149 0
44 * 12 Lac bC* 22 41 28.6495065456 +40 13 31.609736580 4.24 5.080 5.229     B1.5III 369 0
45 HD 215733 s*b 22 47 02.5068538440 +17 13 58.983960504 6.37 7.21 7.34     B1Ib 130 0
46 * 1 Cas * 23 06 36.8177774777 +59 25 11.135356051 3.93 4.771 4.840     B0.5III 254 0
47 HD 219188 * 23 14 00.5157239400 +04 59 49.566134112   6.90 7.06     K0III 169 0

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