Results 11 to 20 of about 407 (188)

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. To both address this issue and obtain a better understanding of the formation of BSSs in different environments we have analysed a sample of BSS candidates in two
M. Mapelli, E. Ripamonti, E. Tolstoy, S. Sigurdsson, M. J. Irwin, G. Battaglia   +5 more
  +6 more sources

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

Dermatol Pract Concept
Dsouza D, Martis J, Ramesh Bhat M, Fernandes M, Monteiro R, Jayaraman J.   +5 more
europepmc   +3 more sources

THE UNIMODAL DISTRIBUTION OF BLUE STRAGGLER STARS IN M75 (NGC 6864) [PDF]

The Astrophysical Journal, 2012
ApJ accepted, 10 pages, 11 figures, 2 ...
R. Contreras Ramos, F. R. Ferraro, E. Dalessandro, B. Lanzoni, Robert T. Rood   +4 more
openalex   +5 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. We review how computer simulations show that stellar collisions are likely to lead to relatively little mass loss and are thus effective in producing a young population ...
M. B. Davies
openalex   +4 more sources

A binary-related origin mediated by environmental conditions for blue straggler stars. [PDF]

Nat Commun
Ferraro FR, Lanzoni B, Vesperini E, Dalessandro E, Cadelano M, Pallanca C, Beccari G, Nardiello D, Libralato M, Piotto G.   +9 more
europepmc   +3 more sources

The First Detection of Blue Straggler Stars in the Milky Way Bulge [PDF]

The Astrophysical Journal, 2011
ApJ in press; 25 pages, 6 figures, 2 ...
W. I. Clarkson, K. C. Sahu, Jay Anderson, R. Michael Rich, E. Smith, T. M. Brown, Howard E. Bond, Mario Livio, D. Minniti, A. Renzini, M. Zoccali   +10 more
  +15 more sources

STELLAR COLLISIONS AND BLUE STRAGGLER STARS IN DENSE GLOBULAR CLUSTERS [PDF]

The Astrophysical Journal, 2013
Blue straggler stars (BSS) are abundantly observed in all Galactic globular clusters (GGC) where data exist. However, observations alone cannot reveal the relative importance of various formation channels or the typical formation times for this well studied population of anomalous stars.
Sourav Chatterjee, Frederic A. Rasio, Alison Sills, Evert Glebbeek   +3 more
openalex   +5 more sources

SPINNING LIKE A BLUE STRAGGLER: THE POPULATION OF FAST ROTATING BLUE STRAGGLER STARS IN ω CENTAURI [PDF]

The Astrophysical Journal, 2014
By using high-resolution spectra acquired with FLAMES-GIRAFFE at the ESO/VLT, we measured radial and rotational velocities for 110 Blue Straggler stars (BSSs) in Omega Centauri, the globular cluster-like stellar system harboring the largest known BSS population. According to their radial velocities, 109 BSSs are members of the system.
A. Mucciarelli, L. Lovisi, F. R. Ferraro, E. Dalessandro, B. Lanzoni, L. Monaco   +5 more
openalex   +4 more sources

Blue Stragglers as Long-Lived Stars [PDF]

Symposium - International Astronomical Union, 1981
The existence of blue stragglers in old open clusters with apparent mass more than twice the mass of the turnoff argues against simple binary mass transfer as the mechanism of their origin. The excess of blue stragglers to the red of the termination of the core hydrogen burning main sequence suggests that blue stragglers are not evolving normally ...
J. Craig Wheeler, Hideyuki Saio, Michel Breger   +2 more
openaire   +2 more sources

Blue Straggler Stars: The Spectacular Population in M80 [PDF]

The Astrophysical Journal, 1999
15 pages, 5 figures, Astrophysical Journal Letters, in ...
F. R. Ferraro, B. Paltrinieri, Robert T. Rood, Ben Dorman   +3 more
openalex   +3 more sources