SIMBAD references

2014MNRAS.442L...5M - Mon. Not. R. Astron. Soc., 442, L5-L8 (2014/July-3)

Destruction of wide binary stars in low-mass elliptical galaxies: implications for initial mass function estimates.

MACCARONE T.J.

Abstract (from CDS):

We discuss the effects of destruction of wide binaries in the nuclei of the lower mass giant elliptical galaxies. We show that the numbers of barium stars and extrinsic S stars should be dramatically reduced in these galaxies compared to what is seen in the largest elliptical galaxies. Given that the extrinsic S stars show strong Wing-Ford band and Nai D absorption, we argue that the recent claims of different initial mass functions from the most massive elliptical galaxies versus lower mass ellipticals may be the result of extrinsic S stars, rather than bottom-heavy initial mass function.

Abstract Copyright: © 2014 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: chemically peculiar - supernovae: general - galaxies: stellar content

Simbad objects: 7

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