Results 11 to 20 of about 628,144 (303)
Fast-rotating Blue Straggler Stars in the Globular Cluster NGC 3201 [PDF]
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 +2 more sources
Fast rotating blue stragglers prefer loose clusters [PDF]
Nature Communications, 2023 Blue stragglers are anomalously luminous core hydrogen-burning stars formed through mass-transfer in binary/triple systems and stellar collisions. Their physical and evolutionary properties are largely unknown and unconstrained.
Francesco R. Ferraro +11 more
doaj +2 more sources
WOCS 4540: Detailed Analysis of a very Long Orbital Period Blue Straggler [PDF]
The Astrophysical Journal, 2023 WOCS 4540 is the longest orbital period ( P _orb = 3030 days) blue straggler star (BSS)—white dwarf (WD) pair in the old open cluster NGC 188. It also contains one of the most luminous BSS in the cluster.
Meng Sun, Robert D. Mathieu
doaj +2 more sources
Variable Blue Straggler Stars in the Open Cluster NGC 6819 Observed in the Kepler “Superstamp” Field [PDF]
The Astronomical Journal, 2023 NGC 6819 is an open cluster of age 2.4 Gyr that was in the NASA Kepler spacecraft’s field of view from 2009 to 2013. The central part of the cluster was observed in a 200 × 200 pixel “superstamp” during these four years in 30 minute cadence photometry ...
Joyce A. Guzik +6 more
doaj +2 more sources
GlobULeS. IV. UVIT/AstroSat Detection of Extremely Low Mass White Dwarf Companions to Blue Straggler Stars in NGC 362 [PDF]
The Astrophysical Journal, 2023 We report the discovery of extremely low mass white dwarfs (ELM WDs) as a companion of blue straggler stars (BSSs) in the Galactic globular cluster NGC 362 using images from AstroSat's Ultra Violet Imaging Telescope (UVIT). Spectral energy distributions (
Arvind K. Dattatrey +6 more
doaj +2 more sources
Blue straggler production in globular clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2004 7 pages, 6 figures; MNRAS in ...
M. B. Davies, G. Piotto, F. De Angeli
openalex +8 more sources
Chemical Composition of a Palomar 12 Blue Straggler [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 With the equivalent area of a 16m telescope, ESPRESSO in 4UT mode allows to inaugurate high resolution spectroscopy for solar-type stars belonging to extragalactic globular clusters.
L. Pasquini +7 more
semanticscholar +5 more sources
ON THE TRIPLE ORIGIN OF BLUE STRAGGLERS [PDF]
The Astrophysical Journal, 2009 10 pages, 6 figures.
Hagai B. Perets, Daniel C. Fabrycky
openalex +6 more sources
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
openalex +4 more sources
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
doaj +2 more sources