2008MNRAS.383..729T

Query : 2008MNRAS.383..729T

2008MNRAS.383..729T - Mon. Not. R. Astron. Soc., 383, 729-740 (2008/January-2)

Iron abundances from optical FeIII absorption lines in B-type stellar spectra.

THOMPSON H.M.A., KEENAN F.P., DUFTON P.L., TRUNDLE C., RYANS R.S.I. and CROWTHER P.A.

Abstract (from CDS):

The role of optical Feiii absorption lines in B-type stars as iron abundance diagnostics is considered. To date, ultraviolet Fe lines have been widely used in B-type stars, although line blending can severely hinder their diagnostic power. Using optical spectra, covering a wavelength range ∼3560-9200Å, a sample of Galactic B-type main-sequence and supergiant stars of spectral types B0.5 to B7 are investigated. A comparison of the observed Feiii spectra of supergiants, and those predicted from the model atmosphere codes tlusty [plane-parallel, non-local thermodynamic equilibrium (LTE)], with spectra generated using synspec (LTE), and cmfgen (spherical, non-LTE), reveal that non-LTE effects appear small. In addition, a sample of main-sequence and supergiant objects, observed with the Fiber-fed Extended Range Optical Spectrograph (FEROS), reveal LTE abundance estimates consistent with the Galactic environment and previous optical studies. Based on the present study, we list a number of Feiii transitions which we recommend for estimating the iron abundance from early B-type stellar spectra.

Abstract Copyright: 2007 The Authors. Journal compilation © 2007 RAS

Journal keyword(s): atomic data - line: identification - stars: abundances - supergiants - stars: variables: other - Galaxy: abundances

Simbad objects: 42

goto Full paper

goto View the references in ADS

Number of rows : 42
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 * gam Peg bC* 00 13 14.1523490172 +15 11 00.954346538 1.75 2.61 2.84 2.94 3.13 B2IV 720 0
2 * zet Cas bC? 00 36 58.2844874846 +53 53 48.877599163 2.58 3.47 3.66 3.74 3.95 B2IV 470 0
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 AzV 304 * 01 02 21.4823289456 -72 39 14.587308576   14.66 14.77     B0.5V 57 0
6 HD 13854 s*b 02 16 51.7162480872 +57 03 18.882144756 6.10 6.76 6.48 6.14 5.95 B1Iab 217 0
7 HD 14143 s*b 02 19 13.9420338600 +57 10 09.234950232 6.71 7.16 6.7000     B2Ia 208 0
8 * 10 Per s*b 02 25 16.0283450208 +56 36 35.354429280 5.95 6.56 6.26 5.93 5.74 B2Ia 248 0
9 HD 14956 s*b 02 26 45.6955268424 +57 40 45.044622588 7.63 7.92 7.20 6.56 6.05 B1.5Ia 154 0
10 [PS79] 34-16 * 05 04 32.5 -66 24 47     15.00     ~ 10 0
11 NAME [BM89] L1523 PoC 05 06 22.9 +31 41 19           ~ 45 0
12 * lam Lep ** 05 19 34.5223081894 -13 10 36.369844928 3.03 4.04 4.29 4.41 4.69 B0.5V 322 0
13 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
14 * iot CMa s*b 06 56 08.2245944314 -17 03 15.259069948 3.62 4.297 4.385 6.40   B3Ib 184 0
15 * omi02 CMa s*b 07 03 01.4713413613 -23 49 59.858307121 2.14 2.94 3.02 3.01 3.10 B3Ia 336 0
16 * i Car * 09 11 16.7220151749 -62 19 01.119842846 3.13 3.774 3.943     B3V 118 0
17 * iot Car V* 09 17 05.4068572 -59 16 30.835305 2.60 2.44 2.26 2.02 1.82 A7Ib 166 0
18 HD 91619 s*b 10 33 25.3890641664 -58 11 24.536432148 6.21 6.61 6.26 5.79 5.51 B6Iab 114 0
19 HD 108002 * 12 24 55.9571476872 -65 12 39.649886676 6.3 7.008 6.955 7.85   B2Ia/ab 67 0
20 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
21 2MASS J13272898-4722472 pA* 13 27 28.9893774528 -47 22 47.300102004   13.30 13.16     ~ 30 0
22 * tau01 Lup bC* 14 26 08.2244287979 -45 13 17.123883210 3.68 4.393 4.553     B2IV 158 0
23 HD 141318 Pu* 15 51 06.8041626360 -55 03 19.928655972 5.13 5.756 5.767 7.08   B2III 93 0
24 BD+33 2642 pA* 15 51 59.8854348048 +32 56 54.329485272 9.806 10.61 10.73 10.884 10.961 O7p 456 0
25 HD 142768 PM* 15 57 08.0530226160 -21 34 49.982571264   9.39 8.84     F8V 21 0
26 HD 142758 s*b 15 59 23.7399409248 -58 43 34.398774588 6.62 7.236 7.072 7.96   B1Ia 66 0
27 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
28 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
29 2MASS J16413368+3626077 pA* 16 41 33.6668708904 +36 26 07.783784952   12.98 13.14     B2p 79 0
30 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
31 HD 152235 s*b 16 53 58.8528412848 -41 59 39.577848180 6.47 6.92 6.38 5.84 5.42 B0.5Ia 205 0
32 * zet01 Sco s*b 16 53 59.7271314888 -42 21 43.307334468 4.80 5.31 4.79 4.32 3.86 B1.5Ia+ 390 0
33 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 857 0
34 2MASS J16570924-0404243 pA* 16 57 09.2537275440 -04 04 24.404262132   13.19 13.23     B: 26 1
35 * k Sco s*b 17 04 49.3516568736 -34 07 22.541680380 4.44 5.13 4.87 4.59 4.42 B2Iab 158 0
36 HD 155985 * 17 17 05.5418093736 -44 46 42.944032272 6.04 6.656 6.487 7.47   B0.5Ib 69 0
37 HD 159110 * 17 34 40.4585214936 -41 19 27.127180812 6.86 7.52 7.58     B2III 21 0
38 * iot Her bC* 17 39 27.8868980278 +46 00 22.792978043 2.940 3.630 3.800     B3IV 470 1
39 * 67 Oph s*b 18 00 38.7157893000 +02 55 53.633402904 3.34 3.96 3.93 3.84 3.81 B4Ib-II 422 0
40 HD 177566 pA* 19 07 07.8863699904 -41 43 16.014829872 9 9.97 10.17     B5/7Ib 53 0
41 HD 190603 s*b 20 04 36.1742825304 +32 13 06.953333016 5.73 6.19 5.65 5.13 4.71 B1.5Ia+ 357 0
42 HD 194279 s*b 20 23 18.1647782064 +40 45 32.598481500 8.01 8.04 7.01 5.98 5.17 B2Ia 200 0

To bookmark this query, right click on this link: simbad:objects in 2008MNRAS.383..729T and select 'bookmark this link' or equivalent in the popup menu