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The Astrophysical Journal
Article . 1988 . Peer-reviewed
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Blue stragglers as the source of the high-velocity A stars

Authors: Bruce A. Twarog; Joseph C. Shields;

Blue stragglers as the source of the high-velocity A stars

Abstract

A quantitative estimate of the contribution of blue stragglers to the stellar population in the solar neighborhood is made, with particular attention to the spatial distribution of early-type stragglers at large distance from the Galactic plane. Blue stragglers are assumed to be created in the disk at a rate consistent with the empirical data from open clusters, while nine plausible combinations of star formation and scale height histories are modeled. It is concluded that normal evolution without the inclusion of blue stragglers is incapable of producing early-type stars at large distances from the plane, while the addition of blue stragglers adequately fulfills the rather weak observational constraints. In addition, it is shown that if blue stragglers are produced at the rate implied by the models, roughly 30 percent of the A stars in the solar neighborhood could be blue stragglers. 48 references.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
5
Average
Average
Average
gold