2015AJ....150....2K


Query : 2015AJ....150....2K

2015AJ....150....2K - Astron. J., 150, 2 (2015/July-0)

Project VeSElkA: analysis of Balmer line profiles of slowly rotating chemically peculiar stars.

KHALACK V. and LEBLANC F.

Abstract (from CDS):

We present results for the estimation of gravity, effective temperature, and radial velocity of poorly studied chemically peculiar stars recently observed with the spectropolarimeter Echelle SpectroPolarimetric Device for Observations of Stars at the Canada-France-Hawaii Telescope in the frame of the Vertical Stratification of Element Abundances project. The effective temperature and surface gravity values are determined for the very first time for four of the stars from our sample (HD 23878, HD 83373, HD 95608, and HD 164584). Grids of stellar atmosphere models with the corresponding fluxes have been calculated using version 15 of the PHOENIX code for effective temperatures in the range of 5000-15,000 K, for the logarithm of surface gravities in the range of 3.0-4.5 and for the metallicities from -1.0 to +1.5. We used these fluxes to fit the Balmer line profiles employing the code FITSB2 that produces estimates of the effective temperature, gravity, and radial velocity for each star. When possible, our results are compared to those previously published. The physical characteristics of 16 program stars are discussed with the future aim to study the abundance anomalies of chemical species and the possible vertical abundance stratification in their stellar atmosphere.

Abstract Copyright: ∼

Journal keyword(s): atomic processes - line: profiles - stars: abundances - stars: atmospheres - stars: chemically peculiar

Simbad objects: 19

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Number of rows : 19
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 15385 Pe* 02 29 13.6822351464 +23 28 08.491382868 6.480 6.350 6.190     kA7IVmF2III/IVSr 66 0
2 * 22 Eri a2* 03 40 38.3331139440 -05 12 38.555731188 4.81 5.38 5.53     B9IIIpSi4200 134 0
3 * tau07 Eri Pe* 03 47 39.6500943072 -23 52 28.838866872   5.299 5.235     A3Vs 53 0
4 HD 53929 * 07 07 06.4712319600 +04 54 38.091397320 5.52 5.961 6.088     B9III 105 0
5 * 15 Cnc a2* 08 13 08.8680600240 +29 39 23.536760076   5.541 5.605     B8VpSi 138 0
6 * d02 Cnc PM* 08 25 49.8772648728 +17 02 46.571728452   6.55   5.8   F5IIIm? 80 0
7 * 34 Hya Pe* 09 37 51.5065777680 -09 25 28.014497832   6.360 6.390     A0Vp 45 0
8 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 891 1
9 * 30 LMi Pe* 10 25 54.8149486684 +33 47 46.029118764   4.978 4.718     F0VmF3/4 157 0
10 * b Leo Pe* 11 02 19.7756641720 +20 10 47.424184800   4.452 4.398     kA1VmA3V 182 0
11 * tet Leo PM* 11 14 14.4056705348 +15 25 46.455911128 3.40 3.33 3.35 3.32 3.34 A2IV 353 0
12 * gam Vir B Pe* 12 41 39.5425844770 -01 26 57.847656959   3.85 3.49     F0mF2V 228 0
13 * gam Vir PM* 12 41 39.6282288151 -01 26 57.854228847 3.07 3.10 2.74 2.45 2.26 F1-F2V 482 0
14 * 64 Vir ** 13 22 09.7048864632 +05 09 17.115496380   5.989 5.873   5.82 kA3hA6mA7 73 0
15 * 108 Vir * 14 45 30.2044637184 +00 43 02.180202816   5.656 5.665     B9.5V 165 0
16 * 7 Sgr * 18 02 51.0986253456 -24 16 56.882232732   5.86 5.34     F2II-III 74 0
17 HD 186568 * 19 43 51.4515233208 +34 09 45.809025300 5.72 5.979 6.053     B8III 74 0
18 * 21 Peg * 22 03 19.0326115488 +11 23 11.574375540   5.762 5.822     B9.5V 160 0
19 * i03 Aqr Pe* 23 51 21.3383366673 -18 54 32.990905266 4.62 5.04 5.18     A0VpSiSr 207 0

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