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Here we present new - and, nevertheless, last - mid-infrared (mid-IR) data for supernovae (SNe) based on measurements with the Spitzer Space Telescope. Comparing our recent 3.6 and 4.5 $\mu$m photometry with previously published mid-IR and…

Though the neutrino-driven convection model for the core-collapse explosion mechanism has received strong support in recent years, there are still many uncertainties in the explosion parameters -- such as explosion energy, remnant mass, and…

High Energy Astrophysical Phenomena · Physics 2020-02-19 Sydney Andrews , Chris L. Fryer , Samuel W. Jones , Wesley P. Even , Marco Pignatari

Chemical abundances and abundance ratios measured in galaxies provide precious information about the mechanisms, modes and time scales of the assembly of cosmic structures. Yet, the nucleogenesis and chemical evolution of elements heavier…

Astrophysics of Galaxies · Physics 2019-12-04 Donatella Romano , Francesca Matteucci , Zhi-Yu Zhang , Rob J. Ivison , Paolo Ventura

The observed delay-time distribution (DTD) of Type-Ia supernovae (SNe Ia) is a valuable probe of SN Ia progenitors and physics, and of the role of SNe Ia in cosmic metal enrichment. The SN Ia rate in galaxy clusters as a function of cluster…

Astrophysics of Galaxies · Physics 2018-07-11 Matan Friedmann , Dan Maoz

We propose a model for dust formation in Type II supernovae (SNe) interacting with confined circumstellar material (CSM), motivated by recent time-domain surveys that have revealed a substantial fraction of SN progenitors to be surrounded…

Solar and Stellar Astrophysics · Physics 2025-09-05 Yuki Takei , Kunihito Ioka , Masaru Shibata

The element abundance distributions in the ejecta of Type Ia supernova (SN) is studied by modelling a time series of optical spectra of SN 2003du until ~1 year after the explosion. Since SN 2003du is a very normal Type Ia SN both…

Solar and Stellar Astrophysics · Physics 2015-05-19 Masaomi Tanaka , Paolo A. Mazzali , Vallery Stanishev , Immanuel Maurer , Wolfgang E. Kerzendorf , Ken'ichi Nomoto

A longstanding problem in the study of supernovae (SNe) has been the relationship between the Type IIP and Type IIL subclasses. Whether they come from distinct progenitors or they are from similar stars with some property that smoothly…

High Energy Astrophysical Phenomena · Physics 2017-03-29 Viktoriya Morozova , Anthony L. Piro , Stefano Valenti

We present the cosmological analysis of 752 photometrically-classified Type Ia Supernovae (SNe Ia) obtained from the full Sloan Digital Sky Survey II (SDSS-II) Supernova (SN) Survey, supplemented with host-galaxy spectroscopy from the…

We refine our previously introduced parameterized model for explosive carbon-oxygen fusion during thermonuclear supernovae (SN Ia) by adding corrections to post-processing of recorded Lagrangian fluid element histories to obtain more…

Solar and Stellar Astrophysics · Physics 2016-07-20 Dean M. Townsley , Broxton J. Miles , F. X. Timmes , Alan C. Calder , Edward F. Brown

We examine deep {\it XMM-Newton} EPIC-pn observations of the Centaurus cluster to study the hot intracluster medium (ICM) and radial metal distributions within such an environment. We found that the best-fit spectral model corresponds to a…

High Energy Astrophysical Phenomena · Physics 2023-09-07 Efrain Gatuzz , J. S. Sanders , K. Dennerl , A. Liu , A. C. Fabian , C. Pinto , D. Eckert , S. A. Walker , J. ZuHone

We compare models for Type Ia supernova (SN Ia) light curves and spectra with an extensive set of observations. The models come from a recent survey of 44 two-dimensional delayed-detonation models computed by Kasen, Roepke & Woosley (2009),…

High Energy Astrophysical Phenomena · Physics 2012-03-29 S. Blondin , D. Kasen , F. K. Roepke , R. P. Kirshner , K. S. Mandel

A time delay of Type Ia supernova (SN Ia) explosions hinders the imprint of their nucleosynthesis on stellar abundances. However, some occasional cases give birth to stars that avoid enrichment of their chemical compositions by massive…

Astrophysics of Galaxies · Physics 2015-06-11 Takuji Tsujimoto , Toshikazu Shigeyama

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

The nature of the supernova remnants (SNRs) 3C 397 and W49B has long been a subject of debate, with prior studies offering conflicting interpretations between thermonuclear and core-collapse scenarios. To help settle this debate, we present…

High Energy Astrophysical Phenomena · Physics 2025-12-02 Cole Treyturik , Chelsea Braun , Samar Safi-Harb , Christopher L. Fryer , Gilles Ferrand

This is the second paper of a series in which we present measurements of the Supernova (SN) rates from the SUDARE survey. In this paper, we study the trend of the SN rates with the intrinsic colours, the star formation activity and the mass…

We review recent progress in elucidating the relationship between high-energy radiation and the interstellar medium (ISM) in young supernova remnants (SNRs) with ages of $\sim$2000 yr, focusing in particular on RX J1713.7$-$3946 and RCW 86.…

High Energy Astrophysical Phenomena · Physics 2021-06-29 Hidetoshi Sano , Yasuo Fukui

The nearby supernova SN 2011fe can be observed in unprecedented detail. Therefore, it is an important test case for Type Ia supernova (SN Ia) models, which may bring us closer to understanding the physical nature of these objects. Here, we…

With the installation of the Cosmic Origins Spectrograph on the Hubble Space Telescope, measurements of the metal content of the low redshift intergalactic medium (IGM) are now available. Using a new grid-based model for diffuse gas coupled…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Genevieve M. Shattow , Darren J. Croton , Antonio Bibiano

We present results for a suite of fourteen three-dimensional, high resolution hydrodynamical simulations of delayed-detonation modelsof Type Ia supernova (SN Ia) explosions. This model suite comprises the first set of three-dimensional SN…

We analyze the nucleosynthesis yields of various Type Ia supernova explosion simulations including pure detonations in sub- Chandrasekhar mass white dwarfs, double detonations and pure helium detonations of sub-Chandrasekhar mass white…

Solar and Stellar Astrophysics · Physics 2021-01-04 F. Lach , F. K. Roepke , I. R. Seitenzahl , B. Coté , S. Gronow , A. J. Ruiter