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The Vera Rubin Observatory's Legacy Survey of Space and Time (LSST) is expected to revolutionize time-domain optical astronomy as we know it. With its unprecedented depth, the LSST will survey the southern hemisphere sky, generating nearly…

High Energy Astrophysical Phenomena · Physics 2025-06-05 Andrea Simongini , F. Ragosta , I. Di Palma , S. Piranomonte

The observational properties of core-collapse supernovae (CC-SNe) are shaped by the envelopes of their progenitors. In massive binary systems, mass-transfer alters the pre-SN structures compared to single stars, leading to a diversity in SN…

Solar and Stellar Astrophysics · Physics 2026-02-11 Andrea Ercolino , Harim Jin , Norbert Langer , Avishay Gal-Yam , Abel Schootemeijer , Caroline Mannes

A method is presented for automated photometric classification of supernovae (SNe) as Type-Ia or non-Ia. A two-step approach is adopted in which: (i) the SN lightcurve flux measurements in each observing filter are fitted separately; and…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 N. V. Karpenka , F. Feroz , M. P. Hobson

Stars in the mass range from 8 to 10 solar masses are expected to produce one of two types of supernovae (SNe), either electron-capture supernovae (ECSNe) or core-collapse supernovae (CCSNe), depending on their previous evolution. Either of…

Solar and Stellar Astrophysics · Physics 2021-02-17 Alexandra Kozyreva , Petr Baklanov , Samuel Jones , Georg Stockinger , Hans-Thomas Janka

A new class of core-collapse supernovae (SNe) has been discovered in recent years by optical/infrared surveys; these SNe suggest the presence of one or more extremely dense (~10^5-10^11 cm^-3) shells of circumstellar material (CSM) on…

High Energy Astrophysical Phenomena · Physics 2011-11-07 Kohta Murase , Todd A. Thompson , Brian C. Lacki , John F. Beacom

Typing the origin (i.e., Type Ia or core-collapse) of supernova remnants (SNRs) is crucial to determine the rates of supernova (SN) explosions in a galaxy, which is a key to understand its recent chemical evolution. However, evolved SNRs in…

High Energy Astrophysical Phenomena · Physics 2016-01-20 Yoko Takeuchi , Hiroya Yamaguchi , Toru Tamagawa

The determination of the supernova (SN) rate is based not only on the number of detected events, but also on the properties of the parent galaxy population. This is the first paper of a series aimed at obtaining new, refined, SN rates from…

Cosmology and Nongalactic Astrophysics · Physics 2010-08-17 A. A. Hakobyan , A. R. Petrosian , G. A. Mamon , B. McLean , D. Kunth , M. Turatto , E. Cappellaro , F. Mannucci , R. J. Allen , N. Panagia , M. Della Valle

Type II supernovae (SNe II) are the most frequently observed outcome of core-collapse explosions and provide a valuable window into the physical mechanisms governing the deaths of massive stars. However, estimates of explosion properties…

High Energy Astrophysical Phenomena · Physics 2025-09-26 Qiliang Fang , Hiroki Nagakura , Takashi J. Moriya

Massive stars are the main objects that illuminate H II regions and they evolve quickly to end their lives in core-collapse supernovae (CCSNe). Thus it is important to investigate the association between CCSNe and H II regions. In this…

Astrophysics of Galaxies · Physics 2018-11-07 Lin Xiao , L. Galbany , J. J. Eldridge , Elizabeth R. Stanway

All types of supernovae (SNe), except Type Ia, have been observed to interact with their immediate circumstellar medium (CSM). This interaction can reveal their progenitor's histories, and constrain our ideas about the evolution of massive…

Astrophysics · Physics 2007-05-23 Robert J. Cumming , Peter Lundqvist

We present an analysis of the height distributions of the different types of supernovae (SNe) from the plane of their host galaxies. We use a well-defined sample of 102 nearby SNe appeared inside high-inclined (i > 85 deg), morphologically…

We present an analysis of the light curve (LC) decline rates $(\Delta m_{15})$ of 407 normal and peculiar supernovae (SNe) Ia and global parameters of their host galaxies. As previously known, there is a significant correlation between the…

Astrophysics of Galaxies · Physics 2020-09-30 A. A. Hakobyan , L. V. Barkhudaryan , A. G. Karapetyan , M. H. Gevorgyan , G. A. Mamon , D. Kunth , V. Adibekyan , M. Turatto

Core collapse supernovae (SN) are the final stages of stellar evolution in massive stars during which the central region collapses, forms a neutron star (NS), and the outer layers are ejected. Recent explosion scenarios assumed that the…

Astrophysics · Physics 2007-05-23 P. Hoeflich , A. Khokhlov , L. Wang

Owing to their utility for measurements of cosmic acceleration, Type Ia supernovae (SNe) are perhaps the best-studied class of SNe, yet the progenitor systems of these explosions largely remain a mystery. A rare subclass of SNe Ia show…

In recent years, multiple Type Ia supernovae (SNe Ia) have been observed with ''bumps'' in their rising light curves shortly after explosion. Here, we present SN 2021qvo: a SN Ia that exhibits a clear early bump in photometry obtained by…

Type Ia Supernovae (SNe Ia) are the best standard candles known today. At high redshift ($z\sim1$) SNe Ia are used to determine the Cosmological Constant Lambda with great success. However the most serious concern is raised by thepossible…

Astrophysics · Physics 2007-05-23 P. Erni , G. A. Tammann

The formation of a core collapse supernovae (SNe) results in a fast (but non- or mildly-relativistic) shock wave expanding outwards into the surrounding medium. The medium itself is likely modified due to the stellar mass-loss from the…

High Energy Astrophysical Phenomena · Physics 2015-09-04 Vikram V. Dwarkadas , M. Renaud , A. Marcowith , V. Tatischeff
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