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We present a sample of normal type Ia supernovae from the Nearby Supernova Factory dataset with spectrophotometry at sufficiently late phases to estimate the ejected mass using the bolometric light curve. We measure $^{56}$Ni masses from…

We present nonlocal thermodynamic equilibrium radiative transfer calculations of red supergiant and He-star explosions, extending previous work to focus on the infrared emission from atoms and ions in the ejecta during the nebular-phase…

太阳与恒星天体物理 · 物理学 2026-01-14 Luc Dessart

We present fits of generalized semi-analytic supernova (SN) light curve (LC) models for a variety of power inputs including Ni-56 and Co-56 radioactive decay, magnetar spin-down, and forward and reverse shock heating due to supernova…

高能天体物理现象 · 物理学 2015-06-16 E. Chatzopoulos , J. C. Wheeler , J. Vinko , Z. L. Horvath , A. Nagy

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…

高能天体物理现象 · 物理学 2018-06-04 Takashi J. Moriya , Francisco Förster , Sung-Chul Yoon , Götz Gräfener , Sergei I. Blinnikov

Much uncertainty surrounds the origin of super-luminous supernovae (SNe). Motivated by the discovery of the Type Ic SN2007bi, we study its proposed association with a pair-instability SN (PISN). We compute stellar-evolution models for…

太阳与恒星天体物理 · 物理学 2015-06-11 Luc Dessart , D. John Hillier , Roni Waldman , Eli Livne , Stephane Blondin

Supernovae (SNe) with photospheric spectra devoid of Hydrogen and Helium features are generally classified as Type Ic SNe (SNe Ic). However, there is ongoing debate as to whether Helium can be hidden in the ejecta of SNe Ic (that is, Helium…

高能天体物理现象 · 物理学 2021-03-03 Marc Williamson , Wolfgang Kerzendorf , Maryam Modjaz

The hydrodynamical modelling of Type II plateau supernova light curves predicts a correlation between three observable parameters (the plateau duration, the absolute magnitude and photospheric velocity at the middle of the plateau) on the…

天体物理学 · 物理学 2009-11-07 D. K. Nadyozhin

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…

The identity of the progenitor systems of SNe Ia is still uncertain. In the single-degenerate (SD) scenario, the interaction between the SN blast wave and the outer layers of a main sequence (MS) companion star strips off H-rich material…

太阳与恒星天体物理 · 物理学 2012-11-13 Z. W. Liu , R. Pakmor , F. K. Roepke , P. Edelmann , B. Wang , M. Kromer , W. Hillebrandt , Z. W. Han

Recent observations suggest that some supernovae may be the result of an explosion into an optically thick circumstellar material, the product of pre-explosion mass-loss (wind) by the progenitor star. This scenario has been studied…

高能天体物理现象 · 物理学 2015-06-17 Sivan Ginzburg , Shmuel Balberg

We present a new method to parameterize Type Ia Supernovae (SN Ia) multi-color light curves. The method was developed in order to analyze the large number of SN Ia multi-color light curves measured in current high-redshift projects. The…

天体物理学 · 物理学 2010-01-18 J. Guy , P. Astier , S. Nobili , N. Regnault , R. Pain

Explosion mechanism of core-collapse supernovae is not fully understood yet. In this work, we give constraints on the explosion timescale based on $^{56}$Ni synthesized by supernova explosions. First, we systematically analyze multi-band…

高能天体物理现象 · 物理学 2022-06-15 Sei Saito , Masaomi Tanaka , Ryo Sawada , Takashi J. Moriya

Over its lifespan, the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will monitor millions of supernovae (SNe) from explosion to oblivion, yielding an unprecedented ugrizy photometric dataset on their late-time evolution.…

太阳与恒星天体物理 · 物理学 2022-10-19 Luc Dessart , Jose L. Prieto , D. John Hillier , Hanindyo Kuncarayakti , Emilio D. Hueichapan

This work presents the semi-analytical light curve modelling results of 11 stripped-envelope SNe (SESNe), where millisecond magnetars potentially drive their light curves. The light-curve modelling is performed utilizing the…

高能天体物理现象 · 物理学 2024-12-13 Amit Kumar

SN 2007bi and SN 1999as are among the first superluminous supernovae discovered. SN 2007bi was suggested to be powered by the radioactive decay of a large amount (5 - 10 Msun) of 56Ni. SN 1999as has a similar spectrum to SN 2007bi. One…

高能天体物理现象 · 物理学 2019-02-20 Takashi J. Moriya , Paolo A. Mazzali , Masaomi Tanaka

Mixing of 56Ni, whose nuclear decay energy is a major luminosity source in stripped-envelope supernovae, is known to affect the observational properties of stripped-envelope supernovae such as light-curve and color evolution. Here we…

高能天体物理现象 · 物理学 2020-09-07 Takashi J. Moriya , Akihiro Suzuki , Tomoya Takiwaki , Yen-Chen Pan , Sergei I. Blinnikov

Observations indicate that turbulent motions are present on most massive star surfaces. Starting from the observed phenomena of spectral lines with widths much larger than thermal broadening (e.g. micro- and macroturbulence) to the…

太阳与恒星天体物理 · 物理学 2023-03-15 William C. Schultz , Benny T. H. Tsang , Lars Bildsten , Yan-Fei Jiang

We present a new series of supernova neutrino light curves and spectra calculated by numerical simulations for a variety of progenitor stellar masses (13-50Msolar) and metallicities (Z = 0.02 and 0.004), which would be useful for a broad…

高能天体物理现象 · 物理学 2013-03-19 Ken'ichiro Nakazato , Kohsuke Sumiyoshi , Hideyuki Suzuki , Tomonori Totani , Hideyuki Umeda , Shoichi Yamada

We have constructed a comprehensive statistical model for Type Ia supernova (SN Ia) light curves spanning optical through near infrared (NIR) data. A hierarchical framework coherently models multiple random and uncertain effects, including…

宇宙学与河外天体物理 · 物理学 2015-03-17 Kaisey S. Mandel , Gautham Narayan , Robert P. Kirshner

In this paper, we propose a new light-curve model for Type-IIP supernovae (SNe IIP) with an approximation of medium recombination. Recombination of hydrogen that takes place in the envelope is believed highly affect the light curves of SNe…

高能天体物理现象 · 物理学 2023-08-30 Hong-Xuan Jiang , Xue-Wen Liu