Results 11 to 20 of about 627,475 (313)
BD+43° 3654 – a blue straggler? [PDF]
Astronomy & Astrophysics, 2008 4 pages, 1 figure, accepted for publication in A&A ...
V. V. Gvaramadze, D. J. Bomans
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ON THE TRIPLE ORIGIN OF BLUE STRAGGLERS [PDF]
The Astrophysical Journal, 2009 10 pages, 6 figures.
Hagai B. Perets, Daniel C. Fabrycky
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Discovery of a Barium Blue Straggler Star in M67 and “Sighting” of Its White Dwarf Companion
The Astrophysical Journal LettersWe report the discovery of a barium blue straggler star (BSS) in M67, exhibiting enhancements in slow neutron-capture ( s -)process elements. Spectroscopic analysis of two BSSs (WOCS 9005 & WOCS 1020) and four stars located near the main-sequence turn ...
Harshit Pal +3 more
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Blue straggler stars in dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 Blue straggler star (BSS) candidates have been observed in all old dwarf spheroidal galaxies (dSphs), however whether or not they are authentic BSSs or young stars has been a point of debate. To both address this issue and obtain a better understanding of the formation of BSSs in different environments we have analysed a sample of BSS candidates in two
Michela Mapelli +5 more
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BLUE STRAGGLERS AFTER THE MAIN SEQUENCE [PDF]
The Astrophysical Journal, 2009 We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases. We found that the blue straggler progeny populate the colour-magnitude diagram slightly blueward of the red giant branch and between 0.2 and 1 ...
Alison Sills +2 more
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The origin of the two populations of blue stragglers in M30 [PDF]
A&A 621, L10 (2019), 2018 We analyze the position of the two populations of blue stragglers in the globular cluster M30 in the Hertzsprung-Russell diagram. Both populations of blue stragglers are brighter than the cluster's turn-off, but one population (the blue blue-stragglers) align along the zero-age main-sequence whereas the (red) population is elevated in brightness (or ...
arxiv +4 more sources
Mock Observations of Blue Stragglers in Globular Cluster Models [PDF]
The Astrophysical Journal, 2013 We created artificial color-magnitude diagrams of Monte Carlo dynamical models of globular clusters, and then used observational methods to determine the number of blue stragglers in those clusters. We compared these blue stragglers to various cluster properties, mimicking work that has been done for blue stragglers in Milky Way globular clusters to ...
Sourav Chatterjee +4 more
arxiv +7 more sources
The Astrophysical JournalWe investigate barium (Ba) abundances in blue straggler stars (BSSs) in two open clusters, NGC 7789 (1.6 Gyr) and M67 (4 Gyr), as signatures of asymptotic-giant-branch (AGB) mass transfer.
Andrew C. Nine +3 more
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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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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
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