Results 31 to 40 of about 622,543 (345)
Understanding the dynamical state of globular clusters: core-collapsed versus non-core-collapsed [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 42 pages, 12 figures, 1 table, submitted to ...
Chatterjee, Sourav +3 more
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Homologously collapsing stellar cores [PDF]
The Astrophysical Journal, 1980 We investigate the collapse of nonrotating gas spheres with a polytropic equation of state: n = 3, corresponding to y = 4/3. Such polytropes provide a reasonable approximation to collapsing stellar cores during the early phase before nuclear density is reached. We find a family of exact homologously collapsing configurations.
Goldreich, Peter, Weber, Stephen V.
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Monotonicity of the Cores of Massive Stars
The Astrophysical Journal, 2023 Massive stars are linked to diverse astronomical processes and objects including star formation, supernovae and their remnants, cosmic rays, interstellar media, and galaxy evolution.
Koh Takahashi +2 more
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Prospects for Extending the Core-collapse Supernova Detection Horizon Using High-energy Neutrinos
The Astrophysical Journal, 2023 Large neutrino detectors like IceCube monitor for core-collapse supernovae using low-energy (MeV) neutrinos with a detection reach from a supernova neutrino burst to the Magellanic Cloud. However, some models predict the emission of high-energy neutrinos
Nora Valtonen-Mattila, Erin O’Sullivan
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Essential ingredients in core-collapse supernovae
AIP Advances, 2014 Carrying 1044 joules of kinetic energy and a rich mix of newly synthesized atomic nuclei, core-collapse supernovae are the preeminent foundries of the nuclear species which make up our solar system and ourselves.
W. Raphael Hix +9 more
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The Astrophysical Journal, 1991 Stars clusters undergo core collapse on a thermal time scale. This results follows from a detailed simulations in the form of N-body, Fokker-Planck, and gas sphere models. The shrinking of the core, both in size as well as mass, is often heuristically attributed to the negative heat capacity of gravity, as follows from the virial theorem. However, this
Junichiro Makino, Piet Hut
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Progenitors of Core-Collapse Supernovae [PDF]
Annual Review of Astronomy and Astrophysics, 2009 Knowledge of the progenitors of core-collapse supernovae is a fundamental component in understanding the explosions. The recent progress in finding such stars is reviewed. The minimum initial mass that can produce a supernova (SN) has converged to 8 ± 1 M⊙from direct detections of red supergiant progenitors of II-P SNe and the most massive white dwarf ...
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JWST NIRSpec Observations of Supernova 1987A—From the Inner Ejecta to the Reverse Shock
The Astrophysical Journal Letters, 2023 We present initial results from JWST NIRSpec integral field unit observations of the nearby supernova SN 1987A. The observations provide the first spatially resolved spectroscopy of the ejecta and equatorial ring (ER) over the 1–5 μ m range. We construct
J. Larsson +25 more
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RES-NOVA sensitivity to core-collapse and failed core-collapse supernova neutrinos
Journal of Cosmology and Astroparticle Physics, 2021 RES-NOVA is a new proposed experiment for the investigation of astrophysical neutrino sources with archaeological Pb-based cryogenic detectors. RES-NOVA will exploit Coherent Elastic neutrino-Nucleus Scattering (CE$ $NS) as detection channel, thus it will be equally sensitive to all neutrino flavors produced by Supernovae (SNe).
Pattavina L. +20 more
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The First Two Years of FLEET: An Active Search for Superluminous Supernovae
The Astrophysical Journal, 2023 In 2019 November, we began operating Finding Luminous and Exotic Extragalactic Transients (FLEET), a machine-learning algorithm designed to photometrically identify Type I superluminous supernovae (SLSNe) in transient alert streams.
Sebastian Gomez +7 more
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