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Related papers: SNaX - A Database of Supernova X-ray Lightcurves

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The deepest X-ray images of M31, obtained with XMM-Newton, are examined in this paper to derive spectral and statistical properties of the population of the softest X-ray sources. Classifying supersoft X-ray sources (SSS) with criteria…

Astrophysics · Physics 2009-11-13 M. Orio

We found diffuse hard X-ray sources, G11.0+0.0, G25.5+0.0, and G26.6-0.1 in the ASCA Galactic plane survey data. The X-ray spectra are featureless with no emission line, and are fitted with both models of a thin thermal plasma in…

Astrophysics · Physics 2009-11-07 Aya Bamba , Masaru Ueno , Katsuji Koyama , Shigeo Yamauchi

The statistics of SN discoveries is used to reveal selection biases of past and current SN searches and to gain insight on the progenitor scenarios for the different SN types. We also report estimates of the SN rate per unit mass in…

Astrophysics · Physics 2007-05-23 Enrico Cappellaro , Roberto Barbon , Massimo Turatto

Supernova remnants (SNRs) are a complex class of sources, and their heterogeneous nature has hindered the characterization of their general observational properties. To overcome this challenge, we use statistical tools to analyze the…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Laura A. Lopez , Enrico Ramirez-Ruiz , Daniela Huppenkothen , Carles Badenes , David Pooley

We constructed 70 SuperNova IDentification (SNID; Blondin & Tonry 2007) supernova (SN) templates using 640 spectra of stripped-envelope core-collapse SNe (SESNe) published by Modjaz et al. (2014). Fifty-six SN templates which are…

Solar and Stellar Astrophysics · Physics 2015-04-01 Yuqian Liu , Maryam Modjaz

The material expelled by core-collapse supernova (SN) explosions absorbs X-rays from the central regions. We use SN models based on three-dimensional neutrino-driven explosions to estimate optical depths to the center of the explosion,…

High Energy Astrophysical Phenomena · Physics 2018-09-19 Dennis Alp , Josefin Larsson , Claes Fransson , M. Gabler , Annop Wongwathanarat , H. -Thomas Janka

Magnetic spin-down of a millisecond neutron star has been proposed as the power source of hydrogen-poor "superluminous" supernovae (SLSNe-I). However, producing an unambiguous test that can distinguish this model from alternatives, such as…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Brian D. Metzger , Indrek Vurm , Romain Hascoet , Andrei M. Beloborodov

Aims: We present a detailed X-ray study of the recently discovered supernova remnant (SNR) G53.41+0.03 that follows up and further expands on the previous, limited analysis of archival data covering a small portion of the SNR. Methods: With…

High Energy Astrophysical Phenomena · Physics 2022-03-14 V. Domček , J. Vink , P. Zhou , L. Sun , L. Driessen

We report the results of our ongoing search for extincted supernovae (SNe) at near-infrared wavelengths. We have monitored at 2.2 micron a sample of 46 Luminous Infrared Galaxies and detected 4 SNe. The number of detections is still small…

We present extensive optical (UBVRI), near-infrared (JK) light curves and optical spectroscopy of the Type Ia supernova (SN) 2006X in the nearby galaxy NGC 4321 (M100). Our observations suggest that either SN 2006X has an intrinsically…

We present a public, open-source relational database (we name kaepora) containing a sample of 4975 spectra of 777 Type Ia supernovae (SNe Ia). Since we draw from many sources, we significantly improve the spectra by inspecting these data…

High Energy Astrophysical Phenomena · Physics 2019-05-08 M. R. Siebert , R. J. Foley , D. O. Jones , R. Angulo , K. Davis , A. Duarte , E. Strasburger , M. Conlon , N. Kazmi , R. Nishimoto , M. Schubert , L. Sun , R. Tippens

M33 contains a large number of emission nebulae identified as supernova remnants (SNRs) based on the high [S II]:Ha ratios characteristic of shocked gas. Using Chandra data from the ChASeM33 survey with a 0.35-2 keV sensitivity of about 2 x…

We apply deep recurrent neural networks, which are capable of learning complex sequential information, to classify supernovae\footnote{Code available at \href{https://github.com/adammoss/supernovae}{https://github.com/adammoss/supernovae}}.…

Instrumentation and Methods for Astrophysics · Physics 2017-05-09 Tom Charnock , Adam Moss

This paper presents spectroscopy of supernovae discovered in the first season of the Sloan Digital Sky Survey-II Supernova Survey. This program searches for and measures multi-band light curves of supernovae in the redshift range z = 0.05 -…

We present results of hydrodynamical simulations of young supernova remnants. To model the ejecta, we use several models (discussed in literature) of type Ia supernova explosions with different abundances. Our hydro models are…

Astrophysics · Physics 2007-05-23 D. I. Kosenko , E. I. Sorokina , S. I. Blinnikov , P. Lundqvist

Type II supernovae (SNe II) are the most common terminal stellar explosions in the Universe. With SNe now being detected within days after explosion, there is growing evidence that the majority of Type II SNe show signs of interaction with…

Rapid advancements in high-throughput single-cell RNA-seq (scRNA-seq) technologies and experimental protocols have led to the generation of vast amounts of genomic data that populates several online databases and repositories. Here, we…

Genomics · Quantitative Biology 2024-04-17 Mahnoor N. Gondal , Saad Ur Rehman Shah , Arul M. Chinnaiyan , Marcin Cieslik

Modern supernova (SN) surveys are now uncovering stellar explosions at rates that far surpass what the world's spectroscopic resources can handle. In order to make full use of these SN datasets, it is necessary to use analysis methods that…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Steven A. Rodney , John L. Tonry

We present a comparative study of 22 core-collapse supernovae (SNe), selected to explore a novel, multidimensional ranking scheme aimed at identifying the best supernova. Each SN is evaluated based on three principal criteria: (1) inferred…

High Energy Astrophysical Phenomena · Physics 2025-04-02 The Gigantic Supernova Pile , Collaboration

A systematic study of the synchrotron X-ray emission from supernova remnants (SNRs) has been conducted. We selected a total of 12 SNRs whose synchrotron X-ray spectral parameters are available in the literature with reasonable accuracy, and…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Ryoko Nakamura , Aya Bamba , Tadayasu Dotani , Manabu Ishida , Ryo Yamazaki , Kazunori Kohri
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