Parameters of HB stars in {omega} Cen Virtual Observatory Resource

Authors

1. Moni Bidin C.
2. Villanova S.
3. Piotto G.
4. Moehler S.
5. Cassisi S.
6. Momany Y.

Published by

CDS

Abstract

We analyze the reddening, surface helium abundance and spectroscopic mass of 115 blue horizontal branch (HB) and blue hook (BH) stars in {omega} Centauri (NGC5139), spanning the cluster HB from the blue edge of the instability strip (T_eff_=8000K) to BH objects with T_eff_~50000K.

Keywords

1. Globular star clusters
2. Horizontal branch stars
3. Subdwarf stars
4. Radial velocity

Bibliographic source Bibcode

2012A&A...547A.109M

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ivo://CDS.VizieR/J/A+A/547/A109

Document Object Identifer DOI

doi:10.26093/cds/vizier.35470109

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