Blue straggler stars in dwarf spheroidal galaxies - II. Sculptor and Fornax [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 The existence of blue straggler stars (BSSs) in dwarf spheroidal galaxies (dSphs) is still an open question. In fact, many BSS candidates have been observed in the Local Group dSphs, but it is unclear whether they are real BSSs or young stars. Shedding light on the nature of these BSS candidates is crucial, in order to understand the star formation ...
M. Mapelli +6 more
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Blue Straggler Stars beyond the Milky Way. IV. Radial Distributions and Dynamical Implications [PDF]
Astrophysical Journal, 2019 Blue straggler stars (BSSs) have been proposed as powerful indicators to measure the dynamical state of Galactic globular clusters (GCs). Here we examine for the first time whether this framework of BSSs as dynamical clocks, which was specifically ...
Chengyuan Li +5 more
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Beryllium in Ultra–Lithium‐Deficient Halo Stars: The Blue Straggler Connection [PDF]
The Astrophysical Journal, 2007 There are nine metal-deficient stars that have Li abundances well below the Li plateau that is defined by over 100 unevolved stars with temperatures above 5800 K and values of [Fe/H] $
Ann Merchant Boesgaard
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Blue Straggler Stars: Early Observations that Failed to Solve the Problem [PDF]
, 2014 In this chapter, I describe early ideas on blue stragglers, and various observations (some published, some not) that promised but failed to resolve the question of their origin.
A. Miglio +59 more
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Blue Straggler Stars Beyond the Milky Way. III. Detection of Evolved Blue Straggler Candidates in Large Magellanic Cloud Clusters [PDF]
The Astronomical Journal, 2018 We analyze Hubble Space Telescope observations of nine Large Magellanic Cloud star clusters with ages of 1–2 Gyr to search for evolved counterparts of blue straggler stars.
Chengyuan Li +5 more
semanticscholar +4 more sources
THE UNIMODAL DISTRIBUTION OF BLUE STRAGGLER STARS IN M75 (NGC 6864) [PDF]
The Astrophysical Journal, 2012 ApJ accepted, 10 pages, 11 figures, 2 ...
R. Contreras Ramos +4 more
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On the Evidence of Disks around Blue Straggler Stars [PDF]
The Astrophysical Journal, 2005 Recent observations of blue stragglers by De Marco et al. (2004) have revealed continuum deficits on the blue side of the Balmer discontinuity, leading these authors to infer the presence of discs around the stars. This intriguing possibility may throw light on aspects of the mechanisms responsible for at least some of these objects; current theories ...
John M. Porter, R. H. D. Townsend
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An Analysis of Blue Straggler Stars in Open Clusters
Research Notes of the AASThe presence of blue straggler stars (BSSs) in open clusters (OCs) presents an opportunity to study star formation and cluster dynamics. Our paper analyzes several properties of BSSs across 161 OCs of different ages, metallicities, and sizes ...
Andrew Harvey +2 more
semanticscholar +2 more sources
THE FREQUENCY OF FIELD BLUE-STRAGGLER STARS IN THE THICK DISK AND HALO SYSTEM OF THE GALAXY [PDF]
, 2015 We present an analysis of a new, large sample of field blue-straggler stars (BSSs) in the thick disk and halo system of the Galaxy, based on stellar spectra obtained during the Sloan Digital Sky Survey (SDSS) and the Sloan Extension for Galactic ...
Rafael M. Santucci +7 more
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Constraining Mass-transfer Histories of Blue Straggler Stars with COS Spectroscopy of White Dwarf Companions [PDF]
Astrophysical Journal, 2019 Recent studies show that the majority of blue straggler stars (BSSs) in old open clusters are formed through mass transfer from an evolved star onto a main-sequence companion, resulting in a BSS and white dwarf (WD) in a binary system.
Natalie M. Gosnell +6 more
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