Institute of Astronomy

Spectral Analyses of Blue Stragglers in the Field

SpeakerTalk DateTalk Series
Paula Jofre Pfeil26 July 2016Binary Stars Talks

Abstract

The low-density environment of the field makes field blue stragglers good candidates to study mass transfer in binary evolution. Finding blue stragglers in the field is however very challenging because of the large variety of ages, metallicities and distances of the field population. Although more distant, the thick disk and the halo are ideal places to hunt blue stragglers as no young stars are expected and therefore anything blue or massive is a good candidate. I will focus on the discussion of the recently discovered "young alpha-rich" stars in the thick disk and how spectral analyses of these stars give us evidence that they are not young, but evolved blue stragglers. 

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