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We present Hubble Space Telescope (HST) rest-frame ultraviolet imaging of the host galaxies of 16 hydrogen-poor superluminous supernovae (SLSNe), including 11 events from the Pan-STARRS Medium Deep Survey. Taking advantage of the superb…

We have used images and spectra of the Sloan Digital Sky Survey to examine the host galaxies of 519 nearby supernovae. The colors at the sites of the explosions, as well as chemical abundances, and specific star formation rates of the host…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Patrick L. Kelly , Robert P. Kirshner

Type II supernovae (SNe II), which show abundant hydrogen in their spectra, belong to a class of SNe with diverse observed properties. It is commonly accepted that SNe II are produced by core collapse and explosion of massive stars.…

High Energy Astrophysical Phenomena · Physics 2024-01-12 Han Lin , Jujia Zhang , Xinghan Zhang

We report results from the Supernova Photometric Classification Challenge (SNPCC), a publicly released mix of simulated supernovae (SNe), with types (Ia, Ibc, and II) selected in proportion to their expected rate. The simulation was…

I review the use of type-Ia supernovae (SNe) for cosmological studies. After briefly recalling the main features of type-Ia SNe that lead to their use as cosmological probes, I briefly describe current and planned type-Ia SNe surveys, with…

Astrophysics · Physics 2008-11-26 Ramon Miquel

We present results from a study of the Supernova Remnant (SNR) population in a sample of six nearby galaxies (NGC 2403, NGC 3077, NGC 4214, NGC 4449, NGC 4395 and NGC 5204) based on Chandra archival data. We have detected 244 discrete X-ray…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Ioanna Leonidaki , Andreas Zezas , Panayotis Boumis

We present a result of X-ray supernovae (SNe) survey using the Swift satellite public archive. An automatic searching program was designed to search X-ray SNe among all of the Swift archival observations between November 2004 and February…

High Energy Astrophysical Phenomena · Physics 2011-09-06 K. L. Li , Chun. S. J. Pun

The relatively nearby spiral galaxy NGC~6946 is one of the most actively star forming galaxies in the local Universe. Ten supernovae (SNe) have been observed since 1917, and hence NGC6946 surely contains a large number of supernova remnants…

High Energy Astrophysical Phenomena · Physics 2019-04-24 Knox S. Long , P. Frank Winkler , William P. Blair

Over the past century, supernova (SN) searches have detected multiple supernovae (SNe) in hundreds of individual galaxies. So-called SN siblings discovered in the same galaxy present an opportunity to constrain the dependence of the…

Astrophysics of Galaxies · Physics 2025-04-08 Laura Salo , Rui Zhou , Samuel Johnson , Patrick Kelly , Galin L. Jones

We investigate the influence of close neighbor galaxies on the properties of supernovae (SNe) and their host galaxies using 56 SNe located in pairs of galaxies with different levels of star formation (SF) and nuclear activity. The…

Cosmology and Nongalactic Astrophysics · Physics 2013-10-02 T. A. Nazaryan , A. R. Petrosian , A. A. Hakobyan , V. Z. Adibekyan , D. Kunth , G. A. Mamon , M. Turatto , L. S. Aramyan

Over recent decades, robotic (or highly automated) searches for supernovae (SNe) have discovered several thousand events, many of them in quite nearby galaxies (distances < 30 Mpc). Most of these SNe, including some of the best-studied…

We describe the Wise Observatory Optical Transient Search (WOOTS), a survey for supernovae (SNe) and other variable and transient objects in the fields of redshift 0.06-0.2 Abell galaxy clusters. We present the survey design and…

Astrophysics · Physics 2009-11-13 Avishay Gal-Yam , Dan Maoz , Puragra Guhathakurta , Alexei V. Filippenko

We present photometry of 12 recent supernovae (SNe) recovered in a {\it Hubble Space Telescope} Snapshot program, and tie the measurements to earlier ground-based observations, in order to study the late-time evolution of the SNe. Many of…

In this catalog we compile information for all supernovae discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN) as well as all other bright ($m_{peak}\leq17$), spectroscopically confirmed supernovae found in 2017, totaling 308…

What are Type II-Linear supernovae (SNe II-L)? This class, which has been ill defined for decades, now receives significant attention -- both theoretically, in order to understand what happens to stars in the ~15-25Mo range, and…

High Energy Astrophysical Phenomena · Physics 2015-06-22 T. Faran , D. Poznanski , A. V. Filippenko , R. Chornock , R. J. Foley , M. Ganeshalingam , D. C. Leonard , W. Li , M. Modjaz , F. J. D. Serduke , J. M. Silverman

Supernova rates are directly coupled to high mass stellar birth and evolution. As such, they are one of the few direct measures of the history of cosmic stellar evolution. In this paper we describe an probabilistic technique for identifying…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 K. Simon Krughoff , Andrew Connolly , Joshua Frieman , Mark SubbaRao , Gary Kilper , Donald Schneider

Knowledge of the formation of neutron stars (NSs) in supernova (SN) explosions is of fundamental importance in wide areas of contemporary astrophysics: X-ray binaries, magnetars, radio pulsars, and, not least, double NS systems which merge…

High Energy Astrophysical Phenomena · Physics 2024-01-25 Claudia Larsen , Hans C. G. Larsen , Casper C. Pedersen , Peter N. Thomsen , Jonatan Tøffner-Clausen , Thomas M. Tauris

Among the supernovae (SNe) that show strong interaction with the circumstellar medium, there is a rare subclass of Type Ia supernovae, SNe Ia-CSM, that show strong narrow hydrogen emission lines much like SNe IIn but on top of a diluted…

Supernovae (SNe) are thought to arise from two different physical processes. The cores of massive, short-lived stars undergo gravitational core collapse and typically eject a few solar masses during their explosion. These are thought to…

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