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The core collapse of rapidly rotating massive ~10 Msun stars ("collapsars"), and resulting formation of hyper-accreting black holes, are a leading model for the central engines of long-duration gamma-ray bursts (GRB) and promising sources…

High Energy Astrophysical Phenomena · Physics 2022-12-21 Daniel M. Siegel , Aman Agarwal , Jennifer Barnes , Brian D. Metzger , Mathieu Renzo , V. Ashley Villar

When muons travel through matter, their energy losses lead to nuclear breakup ("spallation") processes. The delayed decays of unstable daughter nuclei produced by cosmic-ray muons are important backgrounds for low-energy astrophysical…

High Energy Physics - Phenomenology · Physics 2014-04-23 Shirley Weishi Li , John F. Beacom

Long-term neutrino-radiation hydrodynamics simulations in full general relativity are performed for the collapse of rotating massive stars that are evolved from He-stars with their initial mass of $20$ and $32M_\odot$. It is shown that if…

High Energy Astrophysical Phenomena · Physics 2021-10-04 Sho Fujibayashi , Koh Takahashi , Yuichiro Sekiguchi , Masaru Shibata

The neutrino burst from a core-collapse supernova can provide information about the star explosion mechanism and the mechanisms of proto neutron star cooling but also about the intrinsic properties of the neutrino such as flavor…

Instrumentation and Detectors · Physics 2016-05-10 Inés Gil-Botella

Neutrinos and gravitational waves are the only direct probes of the inner dynamics of a stellar core collapse. They are also the first signals to arrive from a supernova and, if detected, establish the moment when the shock wave is formed…

Cosmology and Nongalactic Astrophysics · Physics 2013-11-08 Matthew D. Kistler , Wick C. Haxton , Hasan Yuksel

Are some neutron stars produced without a supernova, without ejecting mass in a remnant? Theoretical calculations of core collapse in massive stars often predict this. The observation of the repeating FRB 121102, whose dispersion measure…

High Energy Astrophysical Phenomena · Physics 2017-03-22 J. I. Katz

A core-collapse supernova (SN) offers an excellent astrophysical laboratory to test non-zero neutrino magnetic moments. In particular, the neutronization burst phase, which lasts for few tens of milliseconds post-bounce, is dominated by…

High Energy Physics - Phenomenology · Physics 2022-10-12 Sudip Jana , Yago P Porto-Silva , Manibrata Sen

Before massive stars heavier than $(8 \cdots 10)$ solar masses evolve to the phase of a gravitational core collapse, they will emit a huge number of MeV-energy neutrinos that are mainly produced in the thermal processes and nuclear weak…

High Energy Astrophysical Phenomena · Physics 2020-06-03 Hui-Ling Li , Yu-Feng Li , Liang-Jian Wen , Shun Zhou

A core-collapse supernova releases the vast majority of the gravitational binding energy of its compact remnant in the form of neutrinos over an interval of a few tens of seconds. In the event of a core-collapse supernova within our galaxy,…

Instrumentation and Methods for Astrophysics · Physics 2019-11-20 N. B. Linzer , K. Scholberg

With myriads of detection events from a prospective Galactic core-collapse supernova, current and future neutrino detectors will be able to sample detailed, time-dependent neutrino fluxes and spectra. This offers enormous possibilities for…

High Energy Astrophysical Phenomena · Physics 2019-09-04 B. Müller

The spectrum of the supernova relic neutrino (SRN) background from past stellar collapses including black hole formation (failed supernovae) is calculated. The redshift dependence of the black hole formation rate is considered on the basis…

High Energy Astrophysical Phenomena · Physics 2015-05-08 Ken'ichiro Nakazato , Eri Mochida , Yuu Niino , Hideyuki Suzuki

If the neutrino luminosity from the proto-neutron star formed during a massive star core collapse exceeds a critical threshold, a supernova (SN) results. Using spherical quasi-static evolutionary sequences for hundreds of progenitors over a…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Ondrej Pejcha , Todd A. Thompson

Predictions of the thermodynamic conditions for phase transitions at high baryon densities and large chemical potentials are currently uncertain and largely phenomenological. Neutrino observations of core-collapse supernovae can be used to…

The overwhelming evidence that the core collapse supernova mechanism is inherently multidimensional, the complexity of the physical processes involved, and the increasing evidence from simulations that the explosion is marginal presents…

The importance of detecting neutrinos from a Milky Way core-collapse supernova is well known. An under-studied phase is proto-neutron star cooling. For SN 1987A, this seemingly began at about 2 s, and is thus probed by only 6 of the 19…

High Energy Astrophysical Phenomena · Physics 2021-01-27 Shirley Weishi Li , Luke F. Roberts , John F. Beacom

Core-collapse supernovae are connected with formation of neutron stars. Part of the gravitation energy is transformed into the energy of the explosion, observed in SN II, SN Ib,c type supernovae. The mechanism of transformation is not…

Astrophysics · Physics 2007-05-23 G. S. Bisnovatyi-Kogan , S. G. Moiseenko , N. V. Ardeljan

Core collapse of massive stars leads to different fates for various physical factors, which gives different spectra of the emitted neutrinos. We focus on the supernova relic neutrinos (SRNs) as a probe to investigate the stellar collapse…

High Energy Astrophysical Phenomena · Physics 2022-09-27 Yosuke Ashida , Ken'ichiro Nakazato

The next Galactic core-collapse supernova (CCSN) presents a once-in-a-lifetime opportunity to make astrophysical measurements using neutrinos, gravitational waves, and electromagnetic radiation. CCSNe local to the Milky Way are extremely…

High Energy Astrophysical Phenomena · Physics 2023-08-04 Spencer Griswold , Segev BenZvi

Models of core-collapse supernova explosions powered by the neutrino-driven mechanism have matured considerable in recent years. Explosions at the low-mass end of the progenitor spectrum can routinely be simulated in 1D, 2D, and 3D and…

Solar and Stellar Astrophysics · Physics 2016-10-05 B. Müller

Neutrinos are densely populated deep inside the core of massive stars after their gravitational collapse to produce supernova explosions and form compact stars such as neutron stars (NS) and black holes (BH). It has been considered that…

High Energy Astrophysical Phenomena · Physics 2019-05-29 Milad Delfan Azari , Shoichi Yamada , Taiki Morinaga , Wakana Iwakami , Hirotada Okawa , Hiroki Nagakura , Kohsuke Sumiyoshi