Results 81 to 90 of about 3,207 (171)

Binaries and blue straggler stars in globular clusters

, 2022
Invited talk at the "The Impact of Binaries on Stellar Evolution" MIAPbP Topical Workshop 14-18 November 2022, Garching (Germany)
openaire   +1 more source

The Power of High-precision Broadband Photometry: Tracing the Milky Way Density Profile with Blue Horizontal Branch Stars in the Dark Energy Survey

The Astrophysical Journal
Blue horizontal branch stars (BHBs), excellent distant tracers for probing the Milky Way’s halo density profile, are distinguished in the ${\left(g-r\right)}_{0}$ versus ( i − z ) _0 color space from another class of stars, blue straggler stars.
Fengqing Yu, Ting S. Li, Joshua S. Speagle, Gustavo E. Medina, Sergey E. Koposov, Joss Bland-Hawthorn, Lara R. Cullinane, Gwendolyn M. Eadie, Denis Erkal, Geraint F. Lewis, Guilherme Limberg, Daniel B. Zucker   +11 more
doaj   +1 more source

A Thorough Exploration of the Metal-rich Massive Open Cluster NGC 6253: Focusing on Membership, Binaries, Stragglers, and Mass Function

The Astrophysical Journal
This study provides an in-depth analysis of the ancient open galactic cluster NGC 6253, characterized by the presence of both blue and yellow straggler stars.
Huanbin Chi, Feng Wang
doaj   +1 more source

Mergers of close primordial binaries

, 2005
We study the production of main sequence mergers of tidally-synchronized primordial short-period binaries. The principal ingredients of our calculation are the angular momentum loss rates inferred from the spindown of open cluster stars and the ...
Ahumada J., D. M. Terndrup, de Kool M., de la Fuente Marcos R., Duquennoy A., Kaluzny J., Kaluzny J., Keppens R., Lapasset E., M. H. Pinsonneault, McCrea W. H., Mermilliod J. C., N. Andronov, Rucinski S. M., Spite F., Stepien K., Vant Veer F., Vilhu O., Zahn J.-P.   +18 more
core   +1 more source

Effects of Rotationally-Induced Mixing in Compact Binary Systems with Low-Mass Secondaries and in Single Solar-Type Stars [PDF]

, 2012
Many population synthesis and stellar evolution studies have addressed the evolution of close binary systems in which the primary is a compact remnant and the secondary is filling its Roche lobe, thus triggering mass transfer.
Chatzopoulos, Emmanouil, Robinson, Edward L., Wheeler, J. Craig   +2 more
core   +2 more sources

Deep multi-telescope photometry of NGC 5466. I. Blue Stragglers and binary systems

, 2013
We present a detailed investigation of the radial distribution of blue straggler star and binary populations in the Galactic globular cluster NGC 5466, over the entire extension of the system.
Beccari, G., Bellazzini, M., Dalessandro, E., Ferraro, F. R., Lanzoni, B., Miocchi, P., Sollima, A.   +6 more
core   +1 more source

UOCS. XIII. Study of the Far-ultraviolet Bright Stars in the Open Cluster NGC 2420 Using AstroSat

The Astrophysical Journal
We present the study of four far-ultraviolet (FUV) bright stars in the field of the open cluster NGC 2420 using the Ultra Violet Imaging Telescope mounted on AstroSat.
R. K. S. Yadav, Arvind K. Dattatrey, Geeta Rangwal, Annapurni Subramaniam, D. Bisht, Ram Sagar   +5 more
doaj   +1 more source

Binary Fraction in Galactic Star Clusters: FSR 866, NGC 1960, and STOCK 2

The Astronomical Journal
The study of binary stars in different astronomical environments offers insights into the dynamical state of the hosting stellar systems. The binary fraction in fact plays a crucial role in the dynamical evolution of stellar systems, regulating processes
L. Yalyalieva, A. Chemel, G. Carraro, E. Glushkova   +3 more
doaj   +1 more source

A Survey of Proper-Motion Stars. XIV. Spectroscopic Binaries among Metal-poor Field Blue Stragglers [PDF]

, 2001
Bruce W. Carney, David W. Latham, John B. Laird, Catherine E. Grant, Jon A. Morse   +4 more
openalex   +3 more sources

Once a Triple, Not Always a Triple: The Evolution of Hierarchical Triples That Yield Merged Inner Binaries

The Astrophysical Journal
More than half of all main-sequence (MS) stars have one or more companions, and many of those with initial masses 10 yr) companions. Furthermore, both BSS binaries and DWDs exhibit signatures of WD birth kicks.
Cheyanne Shariat, Smadar Naoz, Kareem El-Badry, Antonio C. Rodriguez, Bradley M. S. Hansen, Isabel Angelo, Alexander P. Stephan   +6 more
doaj   +1 more source