Results 11 to 20 of about 4,407 (194)

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, Alessio Mucciarelli, Barbara Lanzoni, Cristina Pallanca, Mario Cadelano, Alex Billi, Alison Sills, Enrico Vesperini, Emanuele Dalessandro, Giacomo Beccari, Lorenzo Monaco, Mario Mateo   +11 more
doaj   +5 more sources

Blue Stragglers After the Main Sequence [PDF]

The Astrophysical Journal, 2008
We study the post-main sequence evolution of products of collisions between main sequence stars (blue stragglers), with particular interest paid to the horizontal branch and asymptotic giant branch phases.
Alison Sills, Amanda Karakas, Beccari, Charbonnel, Dearborn, Ferraro, Ferraro, Ferraro, Frost, Hansen, Hut, Iben, John Lattanzio, Lombardi, McCarthy, Monkman, Reimers, Sandquist, Schoenberner, Sills, Sills, Sills, Straniero   +22 more
core   +4 more sources

Blue Straggler Formation in Clusters [PDF]

AIP Conference Proceedings, 2010
Blue stragglers are thought to be formed from the merger or coalescence of two stars, but the details of their formation in clusters has been difficult to disentangle.
Sills, Alison
core   +2 more sources

Explaining the Praesepe blue straggler HD 73666 [PDF]

Astronomy and Astrophysics, 2009
The blue straggler phenomenon is not yet well explained by current theory; however, evolutionary models of star clusters call for a good knowledge of it.
Adams, Ahumada, Ahumada, Andrievsky, Asplund, Bailyn, Baumgardt, Benz, Burkhart, Charbonneau, Chen, Chen, Clampitt, Conti, de Marchi, Dias, Donati, Fossati, Fossati, Girardi, Glebbeek, González-Garcá, Hartkopf, J. Landstreet, Johnson, Kawka, Kharchenko, Kharchenko, Knigge, Kraus, Kurucz, L. Fossati, Leonard, Leonard, Lombardi, Lombardi, Lombardi, Madsen, Mason, McAlister, Mermilliod, Mermilliod, Piotto, Portegies Zwart, Prada Moroni, Robichon, S. Mochnacki, Sandage, Sandquist, Shetrone, Shulyak, Sills, Sills, Sills, Sills, Talon, Van den Bergh, W. Weiss, Wade, Wang   +59 more
core   +5 more sources

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

Nature Communications
Blue stragglers are anomalously massive core hydrogen-burning stars that, according to the theory of single star evolution, should not exist. They are suspected to form in mass-enhancement processes, involving binary evolution or stellar collisions.
Francesco R. Ferraro, Barbara Lanzoni, Enrico Vesperini, Emanuele Dalessandro, Mario Cadelano, Cristina Pallanca, Giacomo Beccari, Domenico Nardiello, Mattia Libralato, Giampaolo Piotto   +9 more
doaj   +2 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.
Davies, Melvyn B.
core   +2 more sources

Models of Individual Blue Stragglers [PDF]

, 2014
This chapter describes the current state of models of individual blue stragglers. Stellar collisions, binary mergers (or coalescence), and partial or ongoing mass transfer have all been studied in some detail.
A. Hypki, A. Maeder, A. Procter Sills, A. Sills, A. Sills, A. Sills, A. Sills, A. Sills, A. Sills, B. Tian, C. A. Nelson, C. D. Bailyn, D. Lauterborn, E. Gaburov, E. Glebbeek, E. Glebbeek, E. Glebbeek, E. Glebbeek, E. L. Sandquist, F. D’Antona, J. A. Ouellette, J. C. Lombardi Jr, J. C. Lombardi Jr, J. C. Lombardi Jr, J. G. Hills, J. R. Hurley, K. Belczynski, M. Templeton, N. Ivanova, N. Ivanova, P. J. T. Leonard, P. Lu, P. Santolamazza, R. E. Cohen, R. Kippenhahn, S. Chatterjee, S. D. Kawaler, S. F. Portegies Zwart, S. J. Aarseth, S. Matt, S. Portegies Zwart, W. Benz, X. Chen, X. Chen, X. Chen   +44 more
core   +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

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

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