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We examine the magnetic reconnection triggered by a supernova (or a point explosion) in interstellar medium, by performing two-dimensional resistive magnetohydrodynamic (MHD) numerical simulations with high spatial resolution. We found that…

天体物理学 · 物理学 2009-10-31 Syuniti Tanuma , Takaaki Yokoyama , Takahiro Kudoh , Kazunari Shibata

When a core-collapse supernova explodes in a binary star system, the ejecta might encounter an overdense shell, where the stellar winds of the two stars previously collided. In this work, we investigate effects of such interactions on…

高能天体物理现象 · 物理学 2022-01-19 Ondřej Pejcha , Diego Calderón , Petr Kurfürst

The explosion of a core collapse supernova drives a powerful shock front into the wind from the progenitor star. A layer of shocked circumstellar gas and ejecta develops that is subject to hydrodynamic instabilities. The hot gas can be…

天体物理学 · 物理学 2016-04-13 Roger A. Chevalier , Claes Fransson

Some gamma ray bursts may be produced by supernovae exploding in close massive binary systems (type Ib/c supernovae) as suggested by the recent observation of SN 1998bw/GRB 980425. We propose that high energy radiation observed in such…

天体物理学 · 物理学 2007-05-23 R. J. Protheroe , W. Bednarek

Impact of supernova explosion on the neutron star magnetosphere in a massive binary system is considered. The supernova shock striking the NS magnetosphere filled with plasma can lead to the formation of a magnetospheric tail with…

天体物理学 · 物理学 2009-11-13 A. E. Egorov , K. A. Postnov

It is an open question whether and how gravitational wave events involving neutron stars can be preceded by electromagnetic counterparts. This work shows that the collision of two neutron stars with magnetic fields well below magnetar-level…

高能天体物理现象 · 物理学 2023-06-21 Elias R. Most , Alexander A. Philippov

When applied to the blast wave formed by the explosion of a massive star as a supernova (SN), the theory of diffusive particle acceleration at shock fronts predicts a very high energy density in cosmic rays. Almost immediately after…

天体物理学 · 物理学 2011-05-23 J. G. Kirk , P. Duffy , Lewis Ball

Supernova explosions (SNe) are among the most energetic events in the Universe. After the explosion, the material ejected by the Supernova expands throughout the interstellar medium (ISM) forming what is called Supernova Remnant (SNR).…

高能天体物理现象 · 物理学 2025-02-12 Giuseppe Prete , Silvia Perri , Claudio Meringolo , Leonardo Primavera , Sergio Servidio

Binary star systems containing a neutron star or a black hole with an evolved, massive star are dynamically perturbed when the latter undergoes a supernova explosion. It is possible that the natal kick received by the newly-formed neutron…

高能天体物理现象 · 物理学 2015-05-14 Eleonora Troja , Graham A. Wynn , Paul T. O'Brien , Stephan Rosswog

The progenitors of Type Ia and some core collapse supernovae are thought to be stars in binary systems, but little observational evidence exists to confirm the hypothesis. We suggest that the collision of the supernova ejecta with its…

高能天体物理现象 · 物理学 2014-11-20 Daniel Kasen

We examine MHD simulations of the propagation of a strong shock wave through the interstellar two-phase medium composed of small-scale cloudlets and diffuse warm neutral medium in two-dimensional geometry. The pre-shock two-phase medium is…

太阳与恒星天体物理 · 物理学 2010-11-30 Tsuyoshi Inoue , Ryo Yamazaki , Shu-ichiro Inutsuka

Using three-dimensional magnetohydrodynamics simulations, we investigate general properties of a blast wave shock interacting with interstellar clouds. The shock-cloud interaction generates a turbulent shell through the vorticity…

高能天体物理现象 · 物理学 2015-05-28 Tsuyoshi Inoue , Ryo Yamazaki , Shu-ichiro Inutsuka , Yasuo Fukui

We perform a series of two-dimensional magnetohydrodynamic simulations of the rotational core-collapse of a magnetized massive star. We employ a realistic equation of state and take into account the neutrino cooling by the so-called leakage…

天体物理学 · 物理学 2009-11-10 Tomoya Takiwaki , Kei Kotake , Shigehiro Nagataki , Katsuhiko Sato

The first electromagnetic signal observed in different types of cosmic explosions is released upon emergence of a shock created in the explosion from the opaque envelope enshrouding the central source. Notable examples are the early…

高能天体物理现象 · 物理学 2020-07-15 Amir Levinson , Ehud Nakar

Shock breakout emission is light that arises when a shockwave, generated by core-collapse explosion of a massive star, passes through its outer envelope. Hitherto, the earliest detection of such a signal was at several hours after the…

Supernovae are expected to occur near the molecular material in which the massive progenitor star was born, except in cases where the photoionizing radiation and winds from the progenitor star and its neighbors have cleared out a region.…

天体物理学 · 物理学 2009-11-06 Roger A. Chevalier

The mechanism by which the radiation received from obliquely rotating neutron stars is generated remains an open question half a century after the discovery of pulsars. In contrast, considerable progress has recently been made in…

高能天体物理现象 · 物理学 2023-03-02 Houshang Ardavan

Conversion from neutron stars to strange stars as a possible mechanism of cosmological gamma-ray bursts (GRBs) has been discussed in previous works, although the existence of strange stars is still an open question. On the basis of this…

天体物理学 · 物理学 2007-05-23 X. Y. Wang , Z. G. Dai , T. Lu , D. M. Wei , Y. F. Huang

Magnetars are young, highly magnetized neutron stars that are associated with magnetar short bursts (MSBs), magnetar giant flares (MGFs), and at least some fast radio bursts (FRBs). In this work, we consider a magnetar and a main sequence…

高能天体物理现象 · 物理学 2024-08-20 Yu-Jia Wei , Yuan-Pei Yang , Da-Ming Wei , Zi-Gao Dai

The spatiotemporal coincidence of supernova (SN) 1998bw and gamma-ray burst (GRB) 980425 and this supernova's unusual optical and radio properties have prompted many theoretical models that produce GRBs from supernovae. We review the…

天体物理学 · 物理学 2009-11-06 Jonathan C. Tan , Christopher D. Matzner , Christopher F. McKee
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