SIMBAD references

2005A&A...441..303Z - Astronomy and Astrophysics, volume 441, 303 (2005/10-1)

A detailed spectroscopy of the carbon-rich star BD+57deg2161.

ZACS L., SCHMIDT M.R., MUSAEV F.A., GALAZUTDINOV G.A. and SPERAUSKAS J.

Abstract (from CDS):

An LTE abundance analysis based on high-resolution spectra is presented for the carbon-rich star BD+57° 2161, whose evolutionary status is unknown. With [C/Fe]=+0.4dex and a mean s-process overabundance of [s/Fe]≃+1.5 dex the peculiar atmospheric composition of BD+57° 2161 is confirmed. The 12C/13C abundance ratio was found to be about 10. The mild iron deficiency, [Fe/H]=-0.2, supports the idea that BD+57° 2161 could be an old-disk-population object. Radial-velocity measurements confirm the binary nature of the star. Therefore the peculiar chemical composition could be due to the mass transfer from the secondary - AGB star in the past. Orbital parameters are estimated for another star of this group, BD+75° 348.

Abstract Copyright:

Journal keyword(s): stars: evolution - stars: atmospheres - stars: abundances - stars: chemically peculiar - stars: individual: BD+57° 2161 - stars: individual: BD+75° 348

Status at CDS:  

Simbad objects: 5

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2020.04.06-08:36:21

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