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
COLLISION TOMOGRAPHY: PHYSICAL PROPERTIES OF POSSIBLE PROGENITORS OF THE ANDROMEDA STELLAR STREAM [PDF]
, 2016 To unveil a progenitor of the Andromeda Giant Stellar Stream, we investigate the interaction between an accreting satellite galaxy and the Andromeda Galaxy using an N-body simulation.
Yohei Miki, M. Mori, R. Rich
semanticscholar +1 more source
Collision and Radiative Parameters for Cr ii Lines Observed in Stellar and Nebular Spectra
Astrophysical Journal, 2019 Electron excitation collision strengths (Ω) and transition probabilities (A-values) for the iron-peak element Cr ii lines are of high importance for the stellar and nebular abundance studies.
S. Tayal, O. Zatsarinny
semanticscholar +1 more source
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
Collisions and close encounters involving massive main-sequence stars [PDF]
, 2006 We study close encounters involving massive main sequence stars and the evolution of the exotic products of these encounters as common--envelope systems or possible hypernova progenitors.
Dale, James E., Davies, Melvyn B.
core +1 more source
Massive first star binaries as new tools for Galactic archaeology [PDF]
EPJ Web of Conferences, 2022 Binary systems are important probes of the origin of stars with peculiar chemical features through the interactions between two stars. We have studied the evolution of a metal-free massive binary after the collision of the supernova ejecta with a low ...
Suda Takuma +4 more
doaj +1 more source
Red giant stellar collisions in the Galactic Centre [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We show that collisions with stellar--mass black holes can partially explain the absence of bright giant stars in the Galactic Centre, first noted by Genzel et al, 1996. We show that the missing objects are low--mass giants and AGB stars in the range 1-3 M$_{\odot}$.
James E. Dale +4 more
openaire +4 more sources
Distant Echoes of the Milky Way’s Last Major Merger
The 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
Tidal spin-up of stars in dense stellar cusps around massive black holes [PDF]
, 2000 We show that main-sequence stars in dense stellar cusps around massive black holes are likely to rotate at a significant fraction of the centrifugal breakup velocity due to spin-up by hyperbolic tidal encounters. We use realistic stellar structure models
Brandt J. C. +11 more
core +3 more sources
Stellar Collisions and the Interior Structure of Blue Stragglers [PDF]
The Astrophysical Journal, 2002 This revised version has 37 pages, 13 figures, 4 tables; submitted to ApJ; for associated software package, see http://vassun.vassar.edu/~lombardi/mmas/ This revised version presents additional comparisons with SPH results and slightly improved merger ...
James C. Lombardi +8 more
openaire +2 more sources