Results 11 to 20 of about 5,068 (263)
Models of Individual Blue Stragglers [PDF]
, 2014 This chapter describes the current state of models of individual blue stragglers. Stellar collisions, binary mergers (or coalescence), and partial or ongoing mass transfer have all been studied in some detail.
A. Hypki +44 more
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Photometry of the Globular Cluster NGC 5466: Red Giants and Blue Stragglers [PDF]
, 2007 We present wide-field BVI photometry for about 11,500 stars in the low-metallicity cluster NGC 5466. We have detected the red giant branch bump for the first time, although it is at least 0.2 mag fainter than expected relative to the turnoff.
Eggleton P. P. +8 more
core +2 more sources
Blue Stragglers in Low-Luminosity Star Clusters [PDF]
The Astrophysical Journal, 2005 We examine the blue straggler populations of 13 low-luminosity (M_V_t >~ -6) globular clusters and 2 old open clusters. These clusters test blue straggler formation in environments intermediate between higher luminosity (and usually higher density ...
Eric L. Sandquist, Ferraro F. R.
core +5 more sources
Modeling blue stragglers in young clusters [PDF]
Research in Astronomy and Astrophysics, 2011 In this paper, a grid of the binary evolution models are calculated for the study of blue straggler (BS) population in intermediate age ($\log Age$=7.85-8.95) star clusters. The BS formation via mass transfer and merging is studied systematically using our models.
Pin Lü, Licai Deng, Xiaobin Zhang
openalex +6 more sources
A binary origin for ‘blue stragglers’ in globular clusters [PDF]
Nature, 2009 Blue stragglers in globular clusters are abnormally massive stars that should have evolved off the stellar main sequence long ago. There are two known processes that can create these objects: direct stellar collisions and binary evolution. However, the relative importance of these processes has remained unclear.
C. Knigge +2 more
openalex +7 more sources
The First Detection of Blue Straggler Stars in the Milky Way Bulge [PDF]
, 2011 We report the first detections of Blue Straggler Stars (BSS) in the bulge of the Milky Way galaxy. Proper motions from extensive space-based observations along a single sight-line allow us to separate a sufficiently clean and well-characterized bulge ...
Albrow +40 more
core +2 more sources
Primordial binary evolution and blue stragglers [PDF]
Proceedings of the International Astronomical Union, 2009 AbstractBlue stragglers have been found in all populations. They are important in both stellar evolution and stellar population synthesis. Much evidence shows that blue stragglers are relevant to primordial binaries. Here, we summarize the links between binary evolution and blue stragglers, describe the characteristics of blue stragglers originating ...
Xuefei Chen, Zhanwen Han
openaire +6 more sources
Ecology of Blue Straggler Stars [PDF]
, 2015 Ecology of Blue Straggler Stars, H.M.J. Boffin, G. Carraro & G.
Boffin, Henri M. J. +2 more
openaire +4 more sources
Building Blue Stragglers with Stellar Collisions [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractThe evolution of stellar collision products in cluster simulations has usually been modelled using simplified prescriptions. Such prescriptions either replace the collision product with an (evolved) main sequence star, or assume that the collision product was completely mixed during the collision.It is known from hydrodynamical simulations of ...
O. R. Pols, Evert Glebbeek
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Blue Straggler Stars in Galactic Open Clusters and the effect of field star contamination [PDF]
, 2008 We investigate the distribution of Blue Straggler stars in the field of three open star clusters. The main purpose is to highlight the crucial role played by general Galactic disk fore-/back-ground field stars, which are often located in the same region ...
A. Moitinho +27 more
core +5 more sources