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It has been well established from a variety of observations that red supergiants (RSGs) loose a lot of mass in stellar wind. Dust formed in this emitted gas over a few decades before core-collapse can lead to substantial extinction and…

高能天体物理现象 · 物理学 2020-02-12 Gururaj A. Wagle , Alak Ray

SN 1987A in the Large Magellanic Cloud is close enough for a study of the very late time evolution of a supernova and its transition to a supernova remnant. Nearly two decades after explosion we are witnessing the supernova shock wave…

We investigate the low-luminosity supernova SN 2016bkv and its peculiar early-time interaction. For that, we compute radiative transfer models using the CMFGEN code. Because SN 2016bkv shows signs of interaction with material expelled by…

高能天体物理现象 · 物理学 2021-09-01 Maxime Deckers , Jose H. Groh , Ioana Boian , Eoin J. Farrell

We present near- and mid-infrared (IR) photometric data of the Type Ibn supernova (SN) 2006jc obtained with the United Kingdom Infrared Telescope (UKIRT), the Gemini North Telescope, and the Spitzer Space Telescope between days 86 and 493…

Long gamma-ray bursts are thought to be caused by a subset of exploding Wolf-Rayet stars. We argue that the circumstellar absorption lines in early supernova and in gamma-ray burst afterglow spectra may allow us to determine the main…

天体物理学 · 物理学 2009-11-11 Allard-Jan van Marle , Norbert Langer , Guillermo Garcia-Segura

In a substantial number of core-collapse supernovae, early-time interaction indicates a dense circumstellar medium (CSM) that may be produced by outbursts from the progenitor star. Wave-driven mass loss is a possible mechanism to produce…

高能天体物理现象 · 物理学 2022-05-12 Samantha Wu , Jim Fuller

Recent modeling of hydrogen-rich Type II supernova (SN II) light curves suggests the presence of dense circumstellar material (CSM) surrounding the exploding progenitor stars. This has important implications for the activity and structure…

高能天体物理现象 · 物理学 2018-05-22 Viktoriya Morozova , Anthony L. Piro , Stefano Valenti

The finding of a Type Ic supernova connected with GRB 030329 showed a massive star origin for this burst, supporting evidence for this association in previous bursts with lightcurve bumps at the appropriate time for a supernova. Here, we…

天体物理学 · 物理学 2009-11-10 Roger A. Chevalier , Zhi-Yun Li , Claes Fransson

Supernovae remnants (SNRs) represent a major feedback source from stars on the interstellar medium of galaxies. During the latest stage of supernovae explosions, shock waves produced by the initial blast modify the chemistry of gas and…

We present a sample of Type Icn supernovae (SNe Icn), a newly-discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). This sample is the largest collection of SNe Icn to date and…

After the death of a runaway massive star, its supernova shock wave interacts with the bow shocks produced by its defunct progenitor, and may lose energy, momentum, and its spherical symmetry before expanding into the local interstellar…

高能天体物理现象 · 物理学 2015-08-17 D. M. -A. Meyer , N. Langer , J. Mackey , P. F. Velazquez , A. Gusdorf

(Abridged) Mass-loss from massive stars leads to the formation of circumstellar wind-blown bubbles surrounding the star, bordered by a dense shell. When the star ends its life in a supernova (SN) explosion, the resulting shock wave will…

天体物理学 · 物理学 2009-06-23 Vikram V. Dwarkadas

Core-collapse explosions of massive stars leave behind neutron stars, with a known diversity that includes the "Central Compact Objects" (CCOs). Typified by the neutron star discovered near the centre of the Cas A supernova remnant (SNR),…

高能天体物理现象 · 物理学 2023-08-29 Chelsea Braun , Samar Safi-Harb , Chris Fryer , Ping Zhou

One of the key methods for determining the unknown nature of Type Ia supernovae (SNe Ia) is the search for traces of interaction between the SN ejecta and the circumstellar structures at the resulting supernova remnants (SNRs Ia). So far,…

太阳与恒星天体物理 · 物理学 2020-05-01 A. Chiotellis , P. Boumis , Z. T. Spetsieri

Despite their cosmological utility, the progenitors of Type Ia supernovae (SNe Ia) are still unknown, with many efforts focused on whether accretion from a nondegenerate companion can grow a carbon-oxygen white dwarf to near the…

We explore the relationship between the models for progenitor systems of Type Ia supernovae and the properties of the supernova remnants that evolve after the explosion. Most models for Type Ia progenitors in the single degenerate scenario…

天体物理学 · 物理学 2011-02-11 Carles Badenes , John P. Hughes , Eduardo Bravo , Norbert Langer

Nearby type Ia supernovae (SNe Ia), such as SN 2017cbv, are useful events to address the question of what the elusive progenitor systems of the explosions are. Hosseinzadeh et al. (2017) suggested that the early blue excess of the…

太阳与恒星天体物理 · 物理学 2017-12-27 Raphael Ferretti , Rahman Amanullah , Mattia Bulla , Ariel Goobar , Joel Johansson , Peter Lundqvist

The discovery of rapidly rising and fading supernovae powered by circumstellar interaction has suggested the pre-supernova mass eruption phase as a critical phenomenon in massive star evolution. It is important to understand the mass and…

太阳与恒星天体物理 · 物理学 2021-12-10 Shing-Chi Leung , Samantha Wu , Jim Fuller

The explosion of a supernovae (SN) represents the sudden injection of about 10^51 ergs of thermal and mechanical energy in a small region of space, causing the formation of powerful shock waves that propagate through the interstellar medium…

太阳与恒星天体物理 · 物理学 2015-03-04 Gloria Dubner