Results 21 to 30 of about 41,445 (309)
EARLY HYDRODYNAMIC EVOLUTION OF A STELLAR COLLISION [PDF]
The Astrophysical Journal, 2014 7 pages, 5 figures (without appendices).
Kushnir, Doron, Katz, Boaz
openaire +2 more sources
Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium
Nature Communications, 2021 Ion storage rings allow reactions to be studied over orders of magnitude in time, bridging the gap between typical experimental and astronomical timescales.
Michael Gatchell +8 more
doaj +1 more source
A comprehensive set of simulations of high-velocity collisions between main sequence stars [PDF]
, 2004 We report on a very large set of simulations of collisions between two main sequence (MS) stars. These computations were done with the ``Smoothed Particle Hydrodynamics'' method. Realistic stellar structure models for evolved MS stars were used. In order
Alexander +123 more
core +3 more sources
Improved treatment of dark matter capture in compact stars
SciPost Physics Proceedings, 2023 Compact stellar objects are promising cosmic laboratories to test the nature of dark matter (DM). DM captured by the strong gravitational field of these stellar remnants transfers kinetic energy to the star during the collision.
Sandra Robles
doaj +1 more source
Stellar collisions in globular clusters: the origin of multiple stellar populations
Monthly Notices of the Royal Astronomical Society, 2022 ABSTRACT Two generations of stars, G1 and G2, typically populate Galactic globular clusters (GCs). The origin of G2 stars is unclear. We uncover two empirical dependencies between GC characteristics, which can be explained by the formation of G2 main-sequence (MS) stars due to collision/merging of their primordial counterparts (G1).
Valery Kravtsov +3 more
openaire +2 more sources
, 1998 WFPC-2 images are used to study the central structure of M31, M32, and M33. The dimmer peak, P2, of the M31 double nucleus is centered on the bulge to 0.1", implying that it is the dynamical center of M31.
Bacon R. +11 more
core +2 more sources
Stellar Collisions and Ultracompact X‐Ray Binary Formation [PDF]
The Astrophysical Journal, 2006 (abridged) We report the results of SPH calculations of parabolic collisions between a subgiant or slightly evolved red-giant star and a neutron star (NS). Such collisions are likely to form ultracompact X-ray binaries (UCXBs) observed today in old globular clusters.
Lombardi Jr., J. C. +5 more
openaire +2 more sources
Evolution of Stellar Collision Products in Globular Clusters. I. Head‐on Collisions [PDF]
The Astrophysical Journal, 1997 We explore the evolution of collisionally merged stars in the blue straggler region of the HR diagram. The starting models for our stellar evolution calculations are the results of the smoothed particle hydrodynamics (SPH) simulations of parabolic collisions between main sequence stars performed by Lombardi, Rasio and Shapiro (1996).
Sills, Alison +5 more
openaire +2 more sources
Star Formation in Collision Debris: Insights from the modeling of their Spectral Energy Distribution [PDF]
, 2010 During galaxy-galaxy interactions, massive gas clouds can be injected into the intergalactic medium which in turn become gravitationally bound, collapse and form stars, star clusters or even dwarf galaxies.
Appleton, P. N. +6 more
core +5 more sources
, 2017 Type Ia supernovae (Ia-SNe) are thought to arise from the thermonuclear explosions of white dwarfs (WDs). The progenitors of such explosions are still highly debated; in particular the conditions leading to detonations in WDs are not well understood in ...
Hamers, A. S., Perets, H. B., Toonen, S.
core +4 more sources