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We examine the basic physics of type Ia supernova (SNe Ia) light curves with a view toward interpreting the relations between peak luminosity, peak width, and late-time slope in terms of the properties of the underlying explosion models. We…

天体物理学 · 物理学 2007-05-23 Philip A. Pinto , Ronald G. Eastman

In order to investigate non-uniformity in the luminosity evolution of Type Ia supernovae, we fit the lightcurves with a multi-parameter empirical model. The model provides a quantitative method of analyzing the lightcurves of Type I…

天体物理学 · 物理学 2007-05-23 W. D. Vacca , B. Leibundgut

Despite the importance of Type Ia supernovae as standard candles for cosmology and to the chemical evolution of the Universe, we still have no consistent picture of the nature of these events. Much progress has been made in the…

高能天体物理现象 · 物理学 2010-12-13 M. Kromer , S. A. Sim , W. Hillebrandt

Motivated by the fact that calibrated light curves of Type Ia supernovae (SNe Ia) have become a major tool to determine the expansion history of the Universe, considerable attention has been given to, both, observations and models of these…

宇宙学与河外天体物理 · 物理学 2013-02-27 W. Hillebrandt , M. Kromer , F. K. Röpke , A. J. Ruiter

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

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

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

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

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

We present an analytic model for bolometric light curves which are powered by the interaction between supernova ejecta and a dense circumstellar medium. This model is aimed at modeling Type IIn supernovae to determine the properties of…

高能天体物理现象 · 物理学 2014-01-20 Takashi J. Moriya , Keiichi Maeda , Francesco Taddia , Jesper Sollerman , Sergei I. Blinnikov , Elena I. Sorokina

A survey of Type II supernovae explosion models has been carried out to determine how their light curves and spectra vary with their mass, metallicity, and explosion energy. The presupernova models are taken from a recent survey of massive…

宇宙学与河外天体物理 · 物理学 2015-05-14 Daniel Kasen , S. E. Woosley

Type Ia supernovae have recently received considerable attention because it appears that they can be used as "standard candles" to measure cosmic distances out to billions of light years away from us. Observations of type Ia supernovae seem…

天体物理学 · 物理学 2007-05-23 W. Hillebrandt , M. Reinecke , W. Schmidt , F. K. Roepke , C. Travaglio , J. C. Niemeyer

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…

Supernovae of type Ia (SNe Ia) are very important for cosmography. To exclude systematic effects in linking the observed light of distant SNe Ia to the parameters of cosmological models, one has to understand the nature of supernova…

天体物理学 · 物理学 2009-11-07 S. Blinnikov , E. Sorokina

We present synthetic light curves and spectra from three-dimensional (3D) Monte Carlo radiative transfer simulations based on a 3D core-collapse supernova explosion model of an ultra-stripped $3.5\,\mathrm{M}_{\odot}$ progenitor. Our…

高能天体物理现象 · 物理学 2025-10-13 Thomas Maunder , Fionntan P. Callan , Stuart A. Sim , Alexander Heger , Bernhard Müller

A three-dimensional Monte Carlo code for modelling radiation transport in Type Ia supernovae is described. In addition to tracking Monte Carlo quanta to follow the emission, scattering and deposition of radiative energy, a scheme involving…

天体物理学 · 物理学 2008-11-26 S. A. Sim

In this paper, we review the present state of theoretical models of thermonuclear supernovae, and compare their predicitions with the constraints derived from observations of Type Ia supernovae. The diversity of explosion mechanisms usually…

天体物理学 · 物理学 2009-11-10 E. Bravo , C. Badenes , D. Garcia-Senz

We generate bolometric light curves for a variety of type Ia supernova models at late times, simulating gamma-ray and positron transport for various assumptions about the magnetic field and ionization of the ejecta. These calculated light…

天体物理学 · 物理学 2009-10-31 P. A. Milne , L. -S. The , M. D. Leising

The use of Type Ia supernovae as cosmological tools has reinforced the need to better understand these objects and their light curves. The light curves of Type Ia supernovae are powered by the nuclear decay of $^{56}Ni \to ^{56}Co \to…

天体物理学 · 物理学 2009-11-11 J. C. Lair , M. D. Leising , P. A. Milne , G. G. Williams

Type Ia supernovae result when carbon-oxygen white dwarfs in binary systems accrete mass from companion stars, reach a critical mass, and explode. The near uniformity of their light curves makes these supernovae good standard candles for…

高能天体物理现象 · 物理学 2015-05-13 Daniel Kasen , Fritz Roepke , S. E. Woosley
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