The Primary Flare Following a Stellar Collision in a Galactic Nucleus
The Astrophysical Journal LettersAbstract High-velocity stellar collisions near supermassive black holes may result in a complete disruption of the stars. The initial disruption can have energies on par with supernovae and power a very fast transient. In this work, we examine the primary flare that follows the initial transient, which arises when streams of gas from the
Yuval Brutman +2 more
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Stellar Collisions and Blue Straggler Formation
, 2001 We review recent 3D hydrodynamic calculations of stellar collisions using the Smoothed Particle Hydrodynamics (SPH) method, and we discuss the implications of the results for the formation and evolution of blue stragglers in globular clusters. We also discuss the construction of simple analytic models for merger remnants, approximating the mass loss ...
James C. Lombardi, Frederic A. Rasio
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Supernovae and Stellar Collisions [PDF]
Proceedings of the National Academy of Sciences, 1939 Fred L. Whipple
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Dynamics of Stellar Systems with Collisions: Eigenvalues and Eigenfunctions in Nearly Collisionless Limit [PDF]
The Astronomical JournalWe examine the decay of perturbations in an infinite homogeneous self-gravitating model with a Maxwellian distribution function (DF) when weak collisions are present.
E. V. Polyachenko, I. G. Shukhman
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Overview of Numerical Simulations for Calculating In-Plasma β-Decay Rates in the Framework of PANDORA Project [PDF]
EPJ Web of Conferences, 2023 β-decay rates are essential inputs in stellar nucleosynthesis models to explain observed nuclear abundances. While current models continue to use terrestrial values, experiments in storage rings indicate strong divergence between decay rates of neutral ...
Mishra Bharat
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The Formation of Massive Stars through Stellar Collisions
, 2001 In this review, I present the case for how massive stars may form through stellar collisions. This mechanism requires very high stellar densities, up to 4 orders of magnitude higher than are observed in the cores of dense young clusters. In this model, the required stellar densities arise due to gas accretion onto stars in the cluster core, including ...
I. A. Bonnell
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Stellar Collisions in Galactic Nuclei: Impact on Destructive Events Near a Supermassive Black Hole
The Astrophysical Journal, 2023 The centers of galaxies host both a supermassive black hole and a dense stellar cluster. Such an environment should lead to stellar collisions, possibly at very high velocities so that the total energy involved is of the same order as supernova ...
Shmuel Balberg, Gilad Yassur
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Intermediate-mass Black Hole Progenitors from Stellar Collisions in Dense Star Clusters [PDF]
The Astrophysical JournalVery massive stars (VMSs) formed via a sequence of stellar collisions in dense star clusters have been proposed as the progenitors of massive black hole seeds.
Elena González Prieto +4 more
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Formation of Stripped Stars from Stellar Collisions in Galactic Nuclei
The Astrophysical JournalTidal disruption events (TDEs) are an important way to probe the properties of stellar populations surrounding supermassive black holes. The observed spectra of several TDEs, such as ASASSN-14li, show high nitrogen-to-carbon (N/C) abundance ratios ...
Charles Gibson +9 more
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The evolution of runaway stellar collision products [PDF]
Astronomy & Astrophysics, 2009 10 pages, 6 figures, accepted for publication in A&A Updated with accepted ...
Glebbeek, E. +4 more
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