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Type Ia supernovae (SNe Ia) correspond to the thermonuclear explosion of a carbon-oxygen white dwarf (C-O WD) star in a binary system, triggered by the accretion of material from another star, or the merger/collision with a secondary WD.…

高能天体物理现象 · 物理学 2025-06-06 Stéphane Blondin

Luminosity evolution of some stripped-envelope supernovae such as Type I superluminous supernovae is difficult to be explained by the canonical 56Ni nuclear decay heating. A popular alternative heating source is rapid spin down of…

高能天体物理现象 · 物理学 2022-06-07 Takashi J. Moriya , Kohta Murase , Kazumi Kashiyama , Sergei I. Blinnikov

Supernovae are known to be the dominant energy source for driving turbulence in the interstellar medium. Yet, their effect on magnetic field amplification in spiral galaxies is still poorly understood. Analytical models based on the…

星系天体物理 · 物理学 2010-01-29 Oliver Gressel

The magnetic field is believed to play an important role in at least some core-collapse supernovae if its magnitude reaches $10^{15}\,\rm{G}$, which is a typical value for a magnetar. In the presence of fast rotation, such a strong magnetic…

高能天体物理现象 · 物理学 2020-01-17 M. Bugli , J. Guilet , M. Obergaulinger , P. Cerdá-Durán , M. Á. Aloy

Supernovae (SNe) associated with X-Ray Flashes (XRFs) are extremely rare. Therefore, the discovery of each new object in this class offers a unique opportunity to improve our understanding about their origins and potential connection with…

高能天体物理现象 · 物理学 2025-10-29 L. M. Roman Aguilar , M. C. Bersten

Supernovae (SNe) are generally classified into Type I and Type II. Most SNe (~ 80%), including all the subtypes of Type II, and Type Ib/c, arise from the core-collapse of massive stars. During their lifetime, mass-loss from these stars…

高能天体物理现象 · 物理学 2015-09-07 Vikram Dwarkadas

Type Ia supernovae (SNe Ia) arise from the thermonuclear explosion in binary systems involving carbon-oxygen white dwarfs (WDs). The pathway of WDs acquiring mass may produce circumstellar material (CSM). Observing SNe Ia within a few hours…

高能天体物理现象 · 物理学 2023-08-15 Maokai Hu , Lifan Wang , Xiaofeng Wang , Lingzhi Wang

SN~2007D is a nearby (redshift $z = 0.023146$), luminous Type Ic supernova (SN) having a narrow light curve (LC) and high peak luminosity. Previous research based on the assumption that it was powered by the $^{56}$Ni cascade decay…

高能天体物理现象 · 物理学 2019-05-29 Shan-Qin Wang , Zach Cano , Long Li , Liang-Duan Liu , Ling-Jun Wang , WeiKang Zheng , Zi-Gao Dai , En-Wei Liang , Alexei V. Filippenko

Rapidly evolving transients, or objects that rise and fade in brightness on timescales two to three times shorter than those of typical Type Ia or Type II supernovae (SNe), have uncertain progenitor systems and powering mechanisms. Recent…

The link between the fate of the most massive stars and the resulting supernova (SN) explosion is still a matter of debate, in major part because of the ambiguity among light-curve powering mechanisms. When stars explode as SNe, the…

The luminosity of ``stripped-envelope supernovae'', a common type of stellar explosions, has been generally thought to be driven by the radioactive decay of the nickel synthesized in the explosion and carried in its ejecta. Additional…

高能天体物理现象 · 物理学 2024-04-18 Ósmar Rodríguez , Ehud Nakar , Dan Maoz

A class of very energetic supernovae (hypernovae) is associated with long gamma-ray bursts, in particular with a less energetic but more frequent population of gamma-ray bursts. Hypernovae also appear to be associated with mildly…

天体物理学 · 物理学 2010-11-11 Shin'ichiro Ando , Peter Meszaros

Observations of several gamma-ray bursts (GRBs) that are temporally and spatially compatible with energetic supernovae (hypernovae) has established their common origin. In one case (GRB 111209A/SN 2011kl) the associated supernova was…

高能天体物理现象 · 物理学 2025-05-08 Achille Fiore , Ludovica Crosato Menegazzi , Giulia Stratta

We propose a new mechanism for high energy gamma ray burst in Supernova type I (SNI) explosion. Presupernova is assumed to be a binary system comprised of a red giant and a white dwarf with a wind accretion. The accretion flow terminates by…

天体物理学 · 物理学 2009-10-28 V. S. Berezinsky , P. Blasi , B. I. Hnatyk

Gamma-ray bursts can appear to be a hundred times as luminous as supernovae, but their underlying energy source(s) have remained a mystery. However, there has been evidence for some time now of an association of gamma-ray bursts with…

天体物理学 · 物理学 2009-11-10 John Middleditch

Kilonovae are optical transients following the merger of neutron star binaries, which are powered by the r-process heating of merger ejecta. However, if a merger remnant is a long-lived supramassive neutron star supported by its uniform…

高能天体物理现象 · 物理学 2023-11-28 Hao Wang , Paz Beniamini , Dimitrios Giannios

Super Luminous supernovae (SLSN) occur almost exclusively in small galaxies (SMC/LMC-like or smaller), and the few SLSN observed in larger star-forming galaxies always occur close to the nuclei of their hosts. Another type of peculiar and…

高能天体物理现象 · 物理学 2015-06-15 Edward P. J. van den Heuvel , Simon Portegies Zwart

Much interest surrounds the nature of the compact remnant formed in core collapse supernovae (SNe). One means to constrain its nature is to search for signatures of power injection from the remnant in the SN observables years after…

高能天体物理现象 · 物理学 2024-12-18 Luc Dessart

The central engine that powers gamma-ray bursts (GRBs), the most powerful explosions in the universe, is still not identified. Besides hyper-accreting black holes, rapidly spinning and highly magnetized neutron stars, known as millisecond…

For about half a century the radio pulsar population was observed to spin in the ~0.002-12s range, with different pulsar classes having a spin-period evolution that differs substantially depending on their magnetic fields or past accretion…

高能天体物理现象 · 物理学 2022-08-17 Michele Ronchi , Nanda Rea , Vanessa Graber , Natasha Hurley-Walker
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