The new detection of blue straggler stars in 50 open clusters using Gaia DR3 [PDF]
Astronomy & Astrophysics, 2023 The particularly abundant presence of blue straggler stars (BSS) in Galactic open clusters offers favorable conditions for detailed studies on the statistical properties and the origin of the blue straggler population.
Chunyan Li +3 more
semanticscholar +1 more source
UOCS-XI. Study of blue straggler stars in open cluster NGC 7142 using UVIT/AstroSat [PDF]
Monthly notices of the Royal Astronomical Society, 2023 We present a study of blue straggler stars (BSSs) of open cluster NGC 7142 using AstroSat/UVIT data and other archival data. Using a machine learning-based algorithm, ML-MOC, on Gaia DR3 data, we find 546 sources as cluster members.
Anju Panthi +5 more
semanticscholar +1 more source
Could the number of blue straggler stars help to determine the age of their parent globular cluster? [PDF]
SCIREA Journal of Astronomy, 2023 A recent study shows, from an empirical deduction, that the number and the presence of the blue straggler stars (BSS) in an open cluster follow a function whose components are the ratio between age and the relaxation time, $\it f$, and a factor, $\varpi$
F. L. D. Andr'es
semanticscholar +1 more source
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
semanticscholar +1 more source
Photometric variability of blue straggler stars in M67 with TESS and K2 [PDF]
Monthly notices of the Royal Astronomical Society, 2023 Blue straggler stars (BSSs) are formed through mass transfers or mergers in binaries. The recent detections of white dwarf (WD) companions to BSSs in M67 suggested a mass transfer pathway of formation. In search of a close companion to five BSSs in M67
Nagaraj Vernekar +3 more
semanticscholar +1 more source
UVIT/AstroSat Investigation of a Low-luminous Blue Straggler Star in NGC 362: Detection of an Extremely Low-mass White Dwarf as Companion [PDF]
Bulletin de la Société royale des sciences de Liège, 2023 In the present study, we identified an extremely low-mass white dwarf as a companion to a low luminous blue straggler star within the Galactic globular cluster NGC 362.
Arvind K. Dattatrey +3 more
semanticscholar +1 more source
Discovery of a Double Sequence of Blue Straggler Stars in the Core-collapsed Globular Cluster NGC 6256 [PDF]
Astrophysical Journal, 2022 We used a combination of high-resolution optical images acquired with the Hubble Space Telescope and near-IR wide-field data to investigate the stellar density profile and the population of blue straggler stars (BSSs) in the Galactic globular cluster NGC
M. Cadelano +5 more
semanticscholar +1 more source
UOCS VII. Blue Straggler Populations of Open Cluster NGC 7789 with UVIT/AstroSat [PDF]
, 2022 NGC 7789 is a $\sim$1.6 Gyr old, populous open cluster located at $\sim$2000 pc. We characterize the blue straggler stars (BSS) of this cluster using the Ultraviolet (UV) data from the UVIT/AstroSat.
K. Vaidya +6 more
semanticscholar +1 more source
A new, Gaia-based, catalogue of blue straggler stars in open clusters [PDF]
Astronomy & Astrophysics, 2021 Context. Blue straggler stars are exotic objects present in all stellar environments whose nature and formation channels are still partially unclear. They seem to be particularly abundant in open clusters (OCs), thus offering a unique chance to tackle ...
M. Rain, J. Ahumada, G. Carraro
semanticscholar +1 more source
Blue Straggler Stars in open clusters using Gaia: Dependence on cluster parameters and possible formation pathways [PDF]
Monthly notices of the Royal Astronomical Society, 2021 Blue straggler stars (BSSs) are the most massive stars in a cluster formed via binary or higher-order stellar interactions. Though the exact nature of such formation scenarios is difficult to pin down, we provide observational constraints on the ...
Vikrant V. Jadhav, A. Subramaniam
semanticscholar +1 more source