2018MNRAS.477.3390N

Query : 2018MNRAS.477.3390N

2018MNRAS.477.3390N - Mon. Not. R. Astron. Soc., 477, 3390-3396 (2018/July-1)

Project VeSElkA: results of abundance analysis for HD 53929 and HD 63975.

NDIAYE M.L., LEBLANC F. and KHALACK V.

Abstract (from CDS):

Project VeSElkA (Vertical Stratification of Element Abundances) has been initiated with the aim to detect and study the vertical stratification of element abundances in the atmosphere of chemically peculiar stars. Abundance stratification occurs in hydrodynamically stable stellar atmospheres due to the migration of the elements caused by atomic diffusion. Two HgMn stars, HD 53929 and HD 63975, were selected from the VeSElkA sample and analysed with the aim to detect some abundance peculiarities employing the ZEEMAN2 code. We present the results of abundance analysis of HD 53929 and HD 63975 observed recently with the spectropolarimeter ESPaDOnS (Echelle SpectroPolarimetric Device for the Observation of Stars) at Canada-France-Hawaii Telescope. Evidence of phosphorus vertical stratification was detected in the atmosphere of these two stars. In both cases, phosphorus abundance increases strongly towards the superficial layers. The strong overabundance of Mn found in stellar atmosphere of both stars confirms that they are HgMn-type stars.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): atomic processes - line: formation - line: profiles - stars: atmospheres - stars: chemically peculiar - stars: individual: (HD 53929, HD 63975)

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 13

goto Full paper

goto View the references in ADS

Number of rows : 13
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 * 22 Eri a2* 03 40 38.3331139440 -05 12 38.555731188 4.81 5.38 5.53     B9IIIpSi4200 134 0
2 HD 41076 * 06 03 24.7687062888 +11 40 51.836858220   6.047 6.075     A0Vs 54 0
3 * 33 Gem Pe* 06 49 49.8362378064 +16 12 10.382708016 5.24 5.72 5.87     B9III 158 0
4 HD 53929 * 07 07 06.4712319600 +04 54 38.091397320 5.52 5.961 6.088     B9III 105 0
5 * zet CMi * 07 51 41.9887267800 +01 46 00.726461076 4.58 5.03 5.16 5.18 5.33 B8II 102 0
6 * b Leo Pe* 11 02 19.7756641720 +20 10 47.424184800   4.452 4.398     kA1VmA3V 182 0
7 * 64 Vir ** 13 22 09.7048864632 +05 09 17.115496380   5.989 5.873   5.82 kA3hA6mA7 73 0
8 * chi Lup SB* 15 50 57.5453432166 -33 37 37.728345509 3.77 3.909 3.946     B9III 318 0
9 V* DQ Dra a2* 16 24 25.3384367736 +55 12 18.346742676   5.736 5.734     A2pSi 104 0
10 * nu. Her LP* 17 58 30.1496073102 +30 11 21.387652276 4.95 4.80 4.41 4.01 3.78 kA9hF2mF2(IV) 186 0
11 HD 178065 SB* 19 07 09.0293341368 +00 38 27.491355672 6.31 6.584 6.538     B9III 103 0
12 * 21 Aql a2* 19 13 42.7011956712 +02 17 37.310297604 4.67 5.08 5.15     B8III 243 0
13 * 46 Aql * 19 42 12.8123363760 +12 11 35.740659732   6.234 6.321     B9III 120 0

To bookmark this query, right click on this link: simbad:objects in 2018MNRAS.477.3390N and select 'bookmark this link' or equivalent in the popup menu