The Astrophysical Journal LettersDense stellar clusters surround the supermassive black holes (SMBH) in galactic nuclei. Interactions within the cluster can alter the stellar orbits, occasionally driving a star into the SMBH’s tidal radius, where it becomes ruptured, or expelling a star
Sanaea C. Rose, Brenna Mockler
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Supernovae and Stellar Collisions [PDF]
Proceedings of the National Academy of Sciences, 1939 Fred L. Whipple
openaire +6 more sources
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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Formation of black holes in the pair-instability mass gap: evolution of a post-collision star [PDF]
Monthly notices of the Royal Astronomical Society, 2022 The detection of GW190521 by the LIGO–Virgo collaboration has revealed the existence of black holes (BHs) in the pair-instability (PI) mass gap. Here, we investigate the formation of BHs in the PI mass gap via star – star collisions in young stellar ...
G. Costa +3 more
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Formation of black holes in the pair-instability mass gap: Hydrodynamical simulations of a head-on massive star collision [PDF]
, 2022 The detection of the binary black hole merger GW190521, with primary black hole mass $85^{+21}_{-14}$ ${\rm M}_{\odot}$, proved the existence of black holes in the theoretically predicted pair-instability gap ($\sim60-120 \, {\rm M}_{\odot}$) of their ...
A. Ballone +5 more
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Close stellar encounters at the Galactic Centre – I. The effect on the observed stellar populations [PDF]
, 2021 We model the effects of stellar collisions and close encounters on the stellar populations observed in the Milky Way nuclear stellar cluster. Our analysis is based on N -body simulations in which the nuclear stellar cluster forms by accretion of massive ...
A. Mastrobuono-Battisti +2 more
semanticscholar +1 more source
Inelastic e+Mg collision data and its impact on modelling stellar and supernova spectra [PDF]
, 2017 Results of calculations for inelastic e+Mg effective collision strengths for the lowest 25 physical states of Mg I (up to 3s6p 1P), and thus 300 transitions, from the convergent close-coupling (CCC) and the B-spline R-matrix (BSR) methods are presented ...
P. Barklem +6 more
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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
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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
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Blue stragglers as stellar collision products: the angular momentum question [PDF]
, 2005 We investigate the structure and evolution of blue straggler stars, which were formed from direct stellar collisions between main-sequence stars in globular clusters.
A. Sills, Tim Adams, M. Davies
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