Results 21 to 30 of about 41,311 (309)

Gamma-Ray Bursts from Stellar Collisions [PDF]

open access: yesThe Astrophysical Journal, 1998
Latex, 15 pages, and 2 postscript figures.
Hansen, Brad M. S., Murali, Chigurupati
openaire   +2 more sources

Survival of polycyclic aromatic hydrocarbon knockout fragments in the interstellar medium

open access: yesNature 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

EARLY HYDRODYNAMIC EVOLUTION OF A STELLAR COLLISION [PDF]

open access: yesThe Astrophysical Journal, 2014
7 pages, 5 figures (without appendices).
Kushnir, Doron, Katz, Boaz
openaire   +2 more sources

Improved treatment of dark matter capture in compact stars

open access: yesSciPost 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

A comprehensive set of simulations of high-velocity collisions between main sequence stars [PDF]

open access: yes, 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

Star Formation in Collision Debris: Insights from the modeling of their Spectral Energy Distribution [PDF]

open access: yes, 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

M32+/-1 [PDF]

open access: yes, 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

Evolution of Stellar Collision Products in Globular Clusters. I. Head‐on Collisions [PDF]

open access: yesThe 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

Evolution of Stellar Collision Products in Globular Clusters. II. Off‐Axis Collisions [PDF]

open access: yesThe Astrophysical Journal, 2001
25 pages incl. 9 figures (one in colour).
Sills, Alison   +4 more
openaire   +2 more sources

Distant Echoes of the Milky Way’s Last Major Merger

open access: yesThe Astrophysical Journal, 2023
The majority of the Milky Way’s stellar halo consists of debris from our galaxy’s last major merger, the Gaia-Sausage-Enceladus (GSE). In the past few years, stars from the GSE have been kinematically and chemically studied in the inner 30 kpc of our ...
Vedant Chandra   +11 more
doaj   +1 more source

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