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The properties of supernovae (SNe) are reviewed. It is shown that the observed characteristics of the morphological classes of SNe (types Ia, Ib/c, II) can be explained in terms of two basic explosion mechanisms, i.e. core collapse of…

天体物理学 · 物理学 2017-08-23 Nino Panagia

Massive stars undergoing iron core-collapse at the end of their evolution terminate their lives either in successful or failed supernovae (SNe). The physics of core-collapse supernovae (CCSNe) is complex, and their understanding requires…

太阳与恒星天体物理 · 物理学 2025-07-30 K. Maltsev , F. R. N. Schneider , I. Mandel , B. Mueller , A. Heger , F. K. Roepke , E. Laplace

We present the most comprehensive catalog to date of Type I Superluminous Supernovae (SLSNe), a class of stripped envelope supernovae (SNe) characterized by exceptionally high luminosities. We have compiled a sample of 262 SLSNe reported…

Observations of core-collapse supernovae (CCSNe) reveal a wealth of information about the dynamics of the supernova ejecta and its composition but very little direct information about the progenitor. Constraining properties of the…

高能天体物理现象 · 物理学 2022-08-03 Brandon L. Barker , Chelsea E. Harris , MacKenzie L. Warren , Evan P. O'Connor , Sean M. Couch

We present $BVi$ multi-band high-cadence observations of a Type II supernova (SN) KSP-SN-2022c from a star-forming galaxy at $z$ $\simeq$ 0.041 from its infant to nebular phase. Early light curve fitting with a single power-law is…

(abridged) Ongoing supernova (SN) surveys find hundreds of candidates, that require confirmation for their use. Traditional classification based on followup spectroscopy of all candidates is virtually impossible for these large samples. We…

天体物理学 · 物理学 2008-11-26 Dovi Poznanski , Dan Maoz , Avishay Gal-Yam

Core-collapse Supernovae (CC-SNe) descend from progenitors more massive than about 8 Msun. Because of the young age of the progenitors, the ejecta may eventually interact with the circumstellar medium (CSM) via highly energetic processes…

The intracluster medium (ICM) is a reservoir of heavy elements synthesized by different supernovae (SNe) types over cosmic history. Different enrichment mechanisms contribute a different relative metal production, predominantly caused by…

高能天体物理现象 · 物理学 2022-09-14 Rebeca Batalha , Renato Dupke , Yolanda Jiménez-Teja

One of the brightest objects in the universe, supernovae (SNe) are powerful explosions marking the end of a star's lifetime. Supernova (SN) type is defined by spectroscopic emission lines, but obtaining spectroscopy is often logistically…

天体物理仪器与方法 · 物理学 2022-07-20 Helen Qu , Masao Sako , Anais Moller , Cyrille Doux

Core-collapse Supernovae (CCSNe) mark the deaths of stars more massive than about eight times the mass of the sun and are intrinsically the most common kind of catastrophic cosmic explosions. They can teach us about many important physical…

高能天体物理现象 · 物理学 2019-08-08 Maryam Modjaz , Claudia P. Gutierrez , Iair Arcavi

Observationally, supernovae (SNe) are divided into subclasses pertaining to their distinct characteristics. This diversity reflects the diversity in the progenitor stars. It is not entirely clear how different evolutionary paths leading…

太阳与恒星天体物理 · 物理学 2018-05-30 H. Kuncarayakti , J. P. Anderson , L. Galbany , K. Maeda , M. Hamuy , G. Aldering , N. Arimoto , M. Doi , T. Morokuma , T. Usuda

The use of Type Ia Supernovae (SNe Ia) to measure cosmological parameters has grown significantly over the past two decades. However, there exists a significant diversity in the SN Ia population that is not well understood. Over-luminous SN…

天体物理仪器与方法 · 物理学 2020-12-09 Daniel Perrefort , Yike Zhang , Lluís Galbany , W. M. Wood-Vasey , Santiago González-Gaitán

The classification of supernovae (SNe) and its impact on our understanding of the explosion physics and progenitors have traditionally been based on the presence or absence of certain spectral features. However, current and upcoming…

We present a method for selecting high-redshift type Ia supernovae (SNe Ia) located via rolling SN searches. The technique, using both color and magnitude information of events from only 2-3 epochs of multi-band real-time photometry, is…

Type Ia Supernovae (SNe Ia) are powerful standardizable candles for constraining cosmological models and provided the first evidence of the accelerated expansion of the universe. Their precision derives from empirical correlations, now…

宇宙学与河外天体物理 · 物理学 2020-06-17 B. M. Rose , D. Rubin , A. Cikota , S. E. Deustua , S. Dixon , A. Fruchter , D. O. Jones , A. G. Riess , D. M. Scolnic

We present a comparison between several simulation codes designed to study the core-collapse supernova mechanism. We pay close attention to controlling the initial conditions and input physics in order to ensure a meaningful and informative…

This chapter describes the current classification scheme of supernovae (SNe). This scheme has evolved over many decades and now includes numerous SN Types and sub-types. Many of these are universally recognized, while there are…

高能天体物理现象 · 物理学 2018-04-25 Avishay Gal-Yam

We describe the observing strategy, data reduction tools and early results of a supernova (SN) search project, named SUDARE, conducted with the ESO VST telescope aimed at measuring the rate of the different types of SNe in the redshift…

Due to high-cadence automated surveys, we can now detect and classify supernovae (SNe) within a few days after explosion, if not earlier. Early-time spectra of young SNe directly probe the outermost layers of the ejecta, providing insights…

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