2006MNRAS.368..247C

Query : 2006MNRAS.368..247C

2006MNRAS.368..247C - Mon. Not. R. Astron. Soc., 368, 247-252 (2006/May-1)

Spectroscopic analyses of six suspected chemically peculiar stars.

CATANZARO G.

Abstract (from CDS):

The abundance pattern of six stars classified as suspected chemically peculiar in the General Catalogue of Ap and Am stars by Renson has been derived to ascertain the real nature of these objects. Spectroscopic observations in the range λλ4800-5600 Å have been carried out at the stellar station of the INAF - Catania Astrophysical Observatory.

Among the studied stars, for only three of them we confirmed their peculiarity, HD155102 being a silicon star, HD159082 a mercury-manganese star and HD162132 a moderate metallic A-type star.

The other three objects have chemical abundances not so different from the standard values derived in the literature for A-type stars and, furthermore, they do not show light variability. Hence, we suggest that they could be ruled out from Renson's catalogue.


Abstract Copyright: 2006 The Author. Journal compilation © 2006 RAS

Journal keyword(s): stars: abundances - stars: chemically peculiar - stars: individual: HD155102 - stars: individual: HD159082 - stars: individual: HD162132

VizieR on-line data: <Available at CDS (J/MNRAS/368/247): tables 1, 2, A1..A6 refs>

Simbad objects: 10

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Number of rows : 10
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 * lam Boo dS* 14 16 23.0184083839 +46 05 17.895459693 4.31 4.26 4.18 4.16 4.13 A0Va_lB 362 0
2 * 5 Ser PM* 15 19 18.7974409923 +01 45 55.466382064   5.60   4.8   F8IV 355 0
3 HD 155102 PM* 17 07 46.6723111704 +40 30 57.794641272 6.420 6.390 6.360     A2IV 54 0
4 * eta Oph ** 17 10 22.68689 -15 43 29.6639 2.56 2.47 2.42 2.39 2.38 A2IV-V 271 0
5 HD 157740 * 17 24 31.5370934928 +16 18 03.626024256   5.806 5.736     A3V 60 0
6 HD 158261 SB* 17 26 46.1453093400 +34 41 44.883897900 5.87 5.93 5.94     A0V 62 0
7 HD 159082 SB* 17 32 14.8801753080 +11 55 48.177391296 6.260 6.440 6.450     B9.5V 94 0
8 * bet Oph PM* 17 43 28.3519097803 +04 34 02.293206489 5.150 3.930 2.750 1.96 1.38 K2IIICN0.5 490 0
9 HD 162132 SB* 17 47 08.0338354344 +47 36 44.093422656   6.549 6.465   6.37 A2Vs 77 0
10 * bet Aqr * 21 31 33.5320760349 -05 34 16.229381029 4.27 3.71 2.89 2.29 1.84 G0Ib 463 0

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