FLAMES AND XSHOOTER SPECTROSCOPY ALONG THE TWO BLUE STRAGGLER STAR SEQUENCES OF M30
نویسندگان
چکیده
منابع مشابه
Two distinct sequences of blue straggler stars in the globular cluster
Stars in globular clusters are generally believed to have all formed at the same time, early in the Galaxy's history 1. 'Blue stragglers' are stars sufficiently massive 2 that they should have evolved into white dwarfs long ago. Two possible mechanisms have been proposed for their formation: mass transfer between binary companions 3 , and stellar mergers induced by direct collisions between two...
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15 صفحه اولBlue Straggler Stars in Galactic Open Clusters and the effect of field star contamination
Context. We investigate the distribution of Blue Straggler stars in the field of three open star clusters. Aims. The main purpose is to highlight the crucial role played by general Galactic disk fore-/background field stars, which are often located in the same region of the Color Magnitude Diagram as Blue Straggler stars. Methods. We analyze photometry taken from the literature of 3 open cluste...
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چکیده ندارد.
15 صفحه اولStellar Collisions and Blue Straggler Formation
We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss, shock heating, mixing, and angular momentum ...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2013
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/772/2/148