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We present synthetic bolometric and broad-band UBVRI light curves of SNe Ia, for four selected 3-D deflagration models of thermonuclear supernovae. The light curves are computed with the 1-D hydro code STELLA, which models (multi-group…

We compare parameters of well-observed type II SN1999em derived by M.Hamuy and D.Nadyozhin based on Litvinova-Nadyozhin (1985) analytic fits with those found from the simulations with our radiative hydro code Stella. The difference of SN…

天体物理学 · 物理学 2007-05-23 S. I. Blinnikov , P. V. Baklanov , A. V. Kozyreva , E. I. Sorokina

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…

天体物理学 · 物理学 2007-05-23 D. I. Kosenko , E. I. Sorokina , S. I. Blinnikov , P. Lundqvist

We present theoretical UBVI- and bolometric light curves of SNe Ia for several explosion models, computed with our multi-group radiation hydro code. We employ our new corrected treatment for line opacity in the expanding medium. The results…

天体物理学 · 物理学 2009-11-07 Elena Sorokina , Sergey Blinnikov

We address a new set of models for the spectral analysis of the X-ray emission from young, ejecta-dominated Type Ia supernova remnants. These models are based on hydrodynamic simulations of the interaction between Type Ia supernova…

天体物理学 · 物理学 2009-11-10 C. Badenes , E. Bravo , K. Borkowski

Using the Monte Carlo code, SEDONA, multiband photometry and spectra are calculated for supernovae derived from stripped helium stars with presupernova masses from 2.2 to 10.0 $M_\odot$. The models are representative of evolution in close…

高能天体物理现象 · 物理学 2021-06-23 Stan Woosley , Tuguldur Sukhbold , Daniel Kasen

The light curve of Supernova (SN) 1993J is calculated using two approaches to radiation transport as exemplified by the two computer codes, STELLA and EDDINGTON. Particular attention is paid to shock breakout and the photometry in the U, B,…

天体物理学 · 物理学 2009-10-30 S. I. Blinnikov , R. Eastman , O. S. Bartunov , V. A. Popolitov , S. E. Woosley

We present advances in modeling Type IIP supernovae using MESA for evolution to shock breakout coupled with STELLA for generating light and radial velocity curves. Explosion models and synthetic light curves can be used to translate…

太阳与恒星天体物理 · 物理学 2019-06-27 Jared A. Goldberg , Lars Bildsten , Bill Paxton

The thermalized energy from the radioactive decays of 56Ni and 57Ni and their daughter nuclides power the light curves of supernovae near maximum light. The bolometric light curve gives us a fundamental understanding of the energy evolution…

天体物理学 · 物理学 2007-05-23 Nicholas B. Suntzeff

Recent progress in numerical simulations of thermonuclear supernova explosions brings up a unique opportunity in studying the progenitors of Type Ia supernovae. Coupling state-of-the-art explosion models with detailed hydrodynamical…

高能天体物理现象 · 物理学 2015-03-26 D. Kosenko , W. Hillebrandt , M. Kromer , S. I. Blinnikov , R. Pakmor , J. S. Kaastra

The optical/UV light curves of SN 1987A are analyzed with the multi-energy group radiation hydrodynamics code STELLA. The calculated monochromatic and bolometric light curves are compared with observations shortly after shock breakout,…

天体物理学 · 物理学 2009-10-31 Sergei Blinnikov , Peter Lundqvist , Oleg Bartunov , Ken'ichi Nomoto , Koichi Iwamoto

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…

高能天体物理现象 · 物理学 2017-10-03 U. M. Noebauer , M. Kromer , S. Taubenberger , P. Baklanov , S. Blinnikov , E. Sorokina , W. Hillebrandt

Theoretical monochromatic light curves and photospheric expansion velocities are compared with observations of 27 Type Ia supernovae (SNe Ia). A set of 37 models has been considered which encompasses all currently discussed explosion…

天体物理学 · 物理学 2016-08-30 P. Hoeflich , A. Khokkhlov

Photometry is the most easily acquired information about supernovae. The light curves constructed from regular imaging provide signatures not only for the energy input, the radiation escape, the local environment and the progenitor stars,…

天体物理学 · 物理学 2016-04-13 Bruno Leibundgut , Nicholas B. Suntzeff

Observations of type II supernova early light, from breakout until recombination, can be used to constrain the explosion energy and progenitor properties. Currently available for this purpose are purely analytic models, which are accurate…

高能天体物理现象 · 物理学 2016-10-19 Tomer Shussman , Roni Waldman , Ehud Nakar

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 propose to use the thermal X-ray emission from young supernova remnants (SNRs) originated in Type Ia supernovae (SNe) to extract relevant information concerning the explosion mechanism. We focus on the differences between numerical 1D…

天体物理学 · 物理学 2007-05-23 Carles Badenes , Eduardo Bravo , Kazimierz J. Borkowski

The explosion mechanism behind Type Ia supernovae is a matter of continuing debate. The diverse attempts to identify or at least constrain the physical processes involved in the explosion have been only partially successful so far. In this…

天体物理学 · 物理学 2009-11-07 Carles Badenes , Eduardo Bravo , Kazimierz J. Borkowski , Inmaculada Dominguez

We present a new observational method to type the explosions of young supernova remnants (SNRs). By measuring the morphology of the Chandra X-ray line emission in seventeen Galactic and Large Magellanic Cloud SNRs with a multipole expansion…

高能天体物理现象 · 物理学 2014-11-20 Laura A. Lopez , Enrico Ramirez-Ruiz , Carles Badenes , Daniela Huppenkothen , Tesla E. Jeltema , David A. Pooley

With an increasing number of superluminous supernovae (SLSNe) discovered the question of their origin remains open and causes heated debates in the supernova community. Currently, there are three proposed mechanisms for SLSNe: (1)…

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