Results 21 to 30 of about 5,356 (321)

Mass-luminosity anomalies: Plausible evidence of recent stellar interaction in the extraordinary blue straggler S1082

Astronomy & Astrophysics
Context. We present an observational and theoretical study of the complex stellar system S1082 in the open cluster M67. This system consists of at least four stars: a blue straggler in a 1.07-day eclipsing binary with a main sequence star (binary A) and ...
Quitral-Pierart Amanda A., Leigh Nathan W. C., Mathieu Robert D., Latham David W., Sandquist Eric L., Horch Elliott P.   +5 more
doaj   +2 more sources

Searching for Variability in the Blue Straggler Star Region of the Globular Cluster NGC 6397

The Astronomical Journal
We studied stellar variability in the subgiant branch and blue straggler stars region of the globular cluster NGC 6397. The aim of this research is to identify and characterize new short-period, low-amplitude variable stars.
T. Cisternas-Araya, C. C. Cortés, S. Villanova, J. A. Ahumada, M. C. Parisi   +4 more
doaj   +2 more sources

Are Blue Straggler Stars a Hidden Clue? Intriguing Discovery in Pityriasis Rubra Pilaris Under UV-Induced Fluorescence Dermoscopy [PDF]

Dermatology Practical & Conceptual
Divya Madonna Dsouza, Jacintha Martis, Ramesh Bhat M, Michelle Serene Fernandes, Rochelle Cheryl Monteiro, Jyothi Jayaraman   +5 more
doaj   +2 more sources

ON THE TRIPLE ORIGIN OF BLUE STRAGGLERS [PDF]

The Astrophysical Journal, 2009
10 pages, 6 figures.
Perets, Hagai B., Fabrycky, Daniel C.
openaire   +2 more sources

Fast-rotating Blue Straggler Stars in the Globular Cluster NGC 3201

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, Francesco R. Ferraro, Alessio Mucciarelli, Barbara Lanzoni, Mario Cadelano, Lorenzo Monaco, Mario Mateo, John I. Bailey III, Megan Reiter, Edward W. Olszewski   +9 more
doaj   +1 more source

Blue straggler production in globular clusters [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
7 pages, 6 figures; MNRAS in ...
DAVIES M., PIOTTO, GIAMPAOLO, DE ANGELI F.   +2 more
openaire   +2 more sources

BD+43° 3654 – a blue straggler? [PDF]

Astronomy & Astrophysics, 2008
4 pages, 1 figure, accepted for publication in A&A ...
Gvaramadze, V. V., Bomans, D. J.
openaire   +2 more sources

Primordial binary evolution and blue stragglers [PDF]

Proceedings of the International Astronomical Union, 2009
AbstractBlue stragglers have been found in all populations. They are important in both stellar evolution and stellar population synthesis. Much evidence shows that blue stragglers are relevant to primordial binaries. Here, we summarize the links between binary evolution and blue stragglers, describe the characteristics of blue stragglers originating ...
Chen, X., Han, Z.
openaire   +4 more sources

Empirical Measurement of the Dynamical Ages of Three Globular Clusters and Some Considerations on the Use of the Dynamical Clock

The Astrophysical Journal, 2023
We have used the “dynamical clock” to measure the level of dynamical evolution reached by three Galactic globular clusters (namely, NGC 3201, NGC 6316, and NGC 6440).
Francesco R. Ferraro, Barbara Lanzoni, Enrico Vesperini, Mario Cadelano, Dan Deras, Cristina Pallanca   +5 more
doaj   +1 more source

The Formation Rate of Blue Stragglers in 47 Tucanae [PDF]

, 1999
We investigate the effects of changes in the blue straggler formation rate in globular clusters on the blue straggler distribution in the color-magnitude diagram. We find that the blue straggler distribution is highly sensitive to the past formation rate.
Alison Sills, Auriere M., Charles D. Bailyn, Ferraro F., Peter D. Edmonds, Ronald L. Gilliland   +5 more
core   +3 more sources