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Early light from core-collapse supernovae, now detectable in high-cadence surveys, holds clues to a star and its environment just before it explodes. However, effects that alter the early light have not been fully explored. We highlight the…

High Energy Astrophysical Phenomena · Physics 2018-04-18 Niloufar Afsariardchi , Christopher D. Matzner

Literature data are collated for 38 stripped-envelope core-collapse supernovae (SE SNe; i.e. SNe IIb, Ib, Ic and Ic-BL) that have good light curve coverage in more than one optical band. Using bolometric corrections derived in previous…

Solar and Stellar Astrophysics · Physics 2016-02-03 Joe Lyman , David Bersier , Phil James , Paolo Mazzali , John Eldridge , Morgan Fraser , Elena Pian

Observations from the last decade have indicated the existence of a general class of superluminous supernovae (SLSNe), in which the peak luminosity exceeds 10^{44} erg/s. Here we focus on a subclass of these events, where the light curve is…

Solar and Stellar Astrophysics · Physics 2015-06-05 Sivan Ginzburg , Shmuel Balberg

The properties of the first generation of stars and their supernova (SN) explosions remains unknown due to the lack of their actual observations. Recently many transient surveys are conducted and the feasibility of the detection of…

Solar and Stellar Astrophysics · Physics 2016-04-27 Alexey Tolstov , Ken'ichi Nomoto , Nozomu Tominaga , Miho Ishigaki , Sergey Blinnikov , Tomoharu Suzuki

Astrophysical transients can be powered by a broad range of energy sources including shock-heating (internal and external shocks), decay of radioactive isotopes, and long-lived central engines (magnetar and fallback). The dominant energy…

High Energy Astrophysical Phenomena · Physics 2025-10-24 Annabelle E. Niblett , Daniel A. Fryer , Christopher L. Fryer

Results of numerical calculations of Type II supernova light curves are presented. The model progenitor stars have 6 $M{_\odot}$ cores and various envelopes, originating from a numerically evolved 20 $M{_\odot}$ star. Five parameters that…

Astrophysics · Physics 2009-11-10 Timothy R. Young

We introduce the first synthetic light-curve model set of Type IIP supernovae exploded within circumstellar media in which the acceleration of the red supergiant winds is taken into account. Because wind acceleration makes the wind…

High Energy Astrophysical Phenomena · Physics 2018-06-04 Takashi J. Moriya , Francisco Förster , Sung-Chul Yoon , Götz Gräfener , Sergei I. Blinnikov

The progenitors of Type IIP supernovae (SNe) are known to be red supergiants, but their properties are not well determined. We employ hydrodynamical modelling to investigate the explosion characteristics of eight Type IIP supernovae, and…

High Energy Astrophysical Phenomena · Physics 2019-06-19 Wilson Ricks , Vikram V. Dwarkadas

We present numerical simulations that include 1-D Eulerian multi-group radiation-hydrodynamics, 1-D non-LTE radiative transfer, and 2-D polarised radiative transfer for super-luminous interacting supernovae (SNe). Our reference model is a…

Solar and Stellar Astrophysics · Physics 2015-06-24 Luc Dessart , Edouard Audit , D. John Hillier

Shock breakout is the earliest, readily-observable emission from a core-collapse supernova explosion. Observing supernova shock breakout may yield information about the nature of the supernova shock prior to exiting the progenitor and, in…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Sean M. Couch , David Pooley , J. Craig Wheeler , Milos Milosavljevic

Transient surveys have recently discovered a class of supernovae (SNe) with extremely rapidly declining light curves. These events are also often relatively faint, especially compared to Type Ia SNe. The common explanation for these events…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Io Kleiser , Daniel Kasen

We present radiation-hydrodynamics simulations of core-collapse supernova (SN) explosions, artificially generated by driving a piston at the base of the envelope of a rotating or non-rotating red-supergiant progenitor star. We search for…

Solar and Stellar Astrophysics · Physics 2015-05-19 Luc Dessart , Eli Livne , Roni Waldman

We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN)~2021gno by the "Precision Observations of Infant Supernova Explosions" (POISE) project, starting less than two days after…

We introduce the STAR-MELT Python package that we developed to facilitate the analysis of time-resolved emission line spectroscopy of young stellar objects. STAR-MELT automatically extracts, identifies and fits emission lines. We summarise…

We present the last version of {\scshape{Hyperion}} (HYdrodynamic Ppm Explosion with Radiation diffusION), a hydrodynamic code designed to calculate the explosive nucleosynthesis, remnant mass and light curve associated to the explosion of…

High Energy Astrophysical Phenomena · Physics 2020-10-21 Marco Limongi , Alessandro Chieffi

We examine the basic physics of type Ia supernova (SNe Ia) light curves with a view toward interpreting the relations between peak luminosity, peak width, and late-time slope in terms of the properties of the underlying explosion models. We…

Astrophysics · Physics 2007-05-23 Philip A. Pinto , Ronald G. Eastman

In this work, we present classification results on early supernova lightcurves from SCONE, a photometric classifier that uses convolutional neural networks to categorize supernovae (SNe) by type using lightcurve data. SCONE is able to…

Instrumentation and Methods for Astrophysics · Physics 2022-01-19 Helen Qu , Masao Sako

Upcoming high-cadence transient survey programmes will produce a wealth of observational data for Type Ia supernovae. These data sets will contain numerous events detected very early in their evolution, shortly after explosion. Here, we…

High Energy Astrophysical Phenomena · Physics 2017-10-03 U. M. Noebauer , M. Kromer , S. Taubenberger , P. Baklanov , S. Blinnikov , E. Sorokina , W. Hillebrandt

We present bolometric and broadband light curves and spectra for a suite of core-collapse supernova models exploded self-consistently in spherical symmetry within the PUSH framework. We analyze broad trends in these light curves and…

Solar and Stellar Astrophysics · Physics 2021-11-17 Sanjana Curtis , Noah Wolfe , Carla Fröhlich , Jonah M. Miller , Ryan Wollaeger , Kevin Ebinger