Results 1 to 10 of about 139 (112)
Young blue straggler stars in the Galactic field [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 In this study we present an analysis of a sample of field blue straggler (BS) stars that show high ultra violet emission in their spectral energy distributions (SED): indication of a hot white dwarf (WD) companion to BS. Using photometry available in the Sloan Digital Sky Survey (SDSS) and Galaxy Evolution Explorer (GALEX ) surveys we identified 80 ...
Ekanayake, Gemunu, Wilhelm, Ronald
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Fast-rotating Blue Straggler Stars in the Globular Cluster NGC 3201
The Astrophysical Journal, 2023 We used high-resolution spectra acquired with the Magellan Telescope to measure radial and rotational velocities of approximately 200 stars in the Galactic globular cluster NGC 3201.
Alex Billi +9 more
doaj +3 more sources
Blue straggler stars in Galactic open clusters and the effect of field star contamination [PDF]
Astronomy & Astrophysics, 2008 11 pages, 4 figurs, in press as Research Note in A& ...
CARRARO, GIOVANNI +2 more
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This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Wang, Chen, Ryu, Taeho
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The Astronomical JournalWe identified blue straggler stars (BSSs) in 53 open clusters utilizing data from Gaia DR3. Most of these clusters are situated in the outer regions of the Galactic disk, encompassing structures such as the warp and the Outer arm.
Qian Cui +6 more
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Fast-rotating blue straggler stars in the globular cluster NGC 1851
Astronomy & AstrophysicsWe studied the rotational velocities of a sample of blue straggler stars (BSSs) and reference stars belonging to the Galactic globular cluster NGC 1851 using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT. After field decontamination
Billi A. +6 more
doaj +3 more sources
Blue Straggler Stars in Old Open Clusters and the Kraft Break
The Astrophysical Journal LettersWe measure the projected rotational velocities ( $v\sin i$ ) of solar-like blue straggler stars (BSSs) in the old (≥4 Gyr) open clusters M67, NGC 188, and NGC 6791.
Evan Linck, Robert D. Mathieu
doaj +3 more sources
Characterization of Blue and Yellow Straggler Stars of Berkeley 39
The Astronomical JournalWe characterize blue straggler stars (BSSs) and yellow straggler stars (YSSs) of the open cluster (OC) Berkeley 39 using multiwavelength observations including the Swift/Ultraviolet and Optical Telescope (UVOT). Our analysis also makes use of ultraviolet
Komal Chand +3 more
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Rotational velocities of blue straggler stars in the globular cluster M 55
Astronomy & AstrophysicsBy using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT, we measured the radial and rotational velocities of 115 stars in the Galactic globular cluster M 55. After field decontamination based on the radial velocity values, the final sample of member stars is composed of 32 blue straggler stars (BSSs) and 76 reference stars ...
A. Billi +5 more
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Binary origin of blue straggler stars in Galactic star clusters
Astronomy & AstrophysicsBuilding on the recent release of a new Gaia-based blue straggler star catalog in Galactic open star clusters (OCs), we explored the properties of these stars in a cluster sample spanning a wide range in fundamental parameters. We employed Gaia EDR3 to assess the membership of any individual blue or yellow straggler to their parent cluster.
M. J. Rain +7 more
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