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.
Michela Mapelli +5 more
core +12 more sources
THE FIRST DETECTION OF BLUE STRAGGLER STARS IN THE MILKY WAY BULGE [PDF]
The Astrophysical Journal, 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 ...
W. I. Clarkson +10 more
core +15 more sources
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.
R. D. Cannon
core +7 more sources
First Evidence of Circumstellar Disks around Blue Straggler Stars [PDF]
The Astrophysical Journal, 2004 We present an analysis of optical HST/STIS and HST/FOS spectroscopy of 6 blue stragglers found in the globular clusters M3, NGC6752 and NGC6397. These stars are a subsample of a set of ~50 blue stragglers and stars above the main sequence turn-off in ...
Orsola De Marco +4 more
core +8 more sources
Spectroscopy of Blue Stragglers and Turnoff Stars in M67 (NGC 2682) [PDF]
The Astronomical Journal, 2000 We have analyzed high-resolution spectra of relatively cool blue stragglers and main sequence turnoff stars in the old open cluster M67 (NGC 2682).
Matthew Shetrone, Eric L. Sandquist
core +5 more sources
A Kinematic View of NGC 1261: Structural Parameters, Internal Dispersion, Absolute Proper Motion, and Blue Straggler Stars [PDF]
Astrophysical Journal, 2020 We constructed a Hubble Space Telescope (HST) astrophotometric catalog of the central region of the Galactic globular cluster NGC 1261. This catalog, complemented with Gaia DR2 data sampling the external regions, has been used to estimate the structural ...
Silvia Raso +10 more
openalex +3 more sources
Field blue straggler stars: discovery of white dwarf companions to blue metal-poor stars using UVIT/AstroSat [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Blue metal-poor (BMP) stars are the main-sequence stars that appear bluer and more luminous than normal turn-off stars of metal-poor globular clusters.
Anju Panthi +6 more
openalex +3 more sources
Formation Channels for Blue Straggler Stars [PDF]
, 2014 In this chapter we consider two formation channels for blue straggler stars: 1) the merger of two single stars via a collision, and 2) those produced via mass transfer within a binary.
Davies, Melvyn B.
core +4 more sources
Detection of White Dwarf companions to Blue Straggler Stars from UVIT observations of M67 [PDF]
Proceedings of the International Astronomical Union, 2019 We investigate the old open cluster M67 using ultraviolet photometric data of Ultra-Violet Imaging Telescope in multi-filter far-UV bands. M67, well known for the presence of several blue straggler stars (BSS), has been put to detailed tests to ...
N. Sindhu +8 more
openalex +3 more sources
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
G. Ekanayake, R. Wilhelm
semanticscholar +5 more sources