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相关论文: How to solve the mass-discrepancy problem of SESNe…

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We explore the variation in single star 15-30 $\rm{M}_{\odot}$, non-rotating, solar metallicity, pre-supernova MESA models due to changes in the number of isotopes in a fully-coupled nuclear reaction network and adjustments in the mass…

太阳与恒星天体物理 · 物理学 2016-12-14 R. Farmer , C. E. Fields , I. Petermann , Luc Dessart , M. Cantiello , B. Paxton , F. X. Timmes

Semi-detached binaries are in the stage of mass transfer and play a crucial role in studying mass transfer physics between interacting binaries. Large-scale time-domain surveys provide massive light curves of binary systems, while Gaia…

太阳与恒星天体物理 · 物理学 2023-11-17 JianPing Xiong , Xu Ding , Jiadong Li , Hongwei Ge , Qiyuan Cheng , Kaifan Ji , Zhanwen Han , Xuefei Chen

Stars in the mass range from 8 to 10 solar masses are expected to produce one of two types of supernovae (SNe), either electron-capture supernovae (ECSNe) or core-collapse supernovae (CCSNe), depending on their previous evolution. Either of…

太阳与恒星天体物理 · 物理学 2021-02-17 Alexandra Kozyreva , Petr Baklanov , Samuel Jones , Georg Stockinger , Hans-Thomas Janka

The ejected mass distribution of type Ia supernovae directly probes progenitor evolutionary history and explosion mechanisms, with implications for their use as cosmological probes. Although the Chandrasekhar mass is a natural mass scale…

高能天体物理现象 · 物理学 2015-06-22 R. A. Scalzo , A. J. Ruiter , S. A. Sim

A fully 3D Monte Carlo scheme is applied to compute optical bolometric light curves for aspherical (jet-like) supernova explosion models. Density and abundance distributions are taken from hydrodynamic explosion models, with the energy…

天体物理学 · 物理学 2009-11-13 K. Maeda , P. A. Mazzali , K. Nomoto

We construct a numerical light curve model for interaction-powered supernovae that arise from an interaction between the ejecta and the circumstellar matter (CSM). In order to resolve the shocked region of an interaction-powered supernova,…

高能天体物理现象 · 物理学 2020-06-10 Yuki Takei , Toshikazu Shigeyama

A group of super-luminous supernovae (SL-SNe) characterised by broad light curves have been suggested to be Pair Instability SNe (PISNe). Nebular spectra computed using PISN models have failed to reproduce the broad emission lines observed…

高能天体物理现象 · 物理学 2019-01-30 P. A. Mazzali , T. J. Moriya , M. Tanaka , S. E. Woosley

We simulate the response of a main sequence star to the explosion of a stripped-envelope (type Ib or Ic) core collapse supernova (CCSN) when the main sequence star orbits the core at a distance of 10-20Ro at explosion. We use the stellar…

高能天体物理现象 · 物理学 2022-08-31 Ofek Hober , Ealeal Bear , Noam Soker

We analyse late-time observations, available photometry and spectra, of a sample of type II plateau supernovae (SNe IIP). The possibility of using H$\alpha$ luminosity at the nebular epoch as a tracer of $^{56}$Ni mass in this class of…

天体物理学 · 物理学 2007-05-23 A. Elmhamdi , N. N. Chugai , I. J. Danziger

Superluminous supernovae are among the most energetic stellar explosions in the Universe, but their energy sources remain an open question. Here we present long-term observations of one of the closest examples of the hydrogen-poor subclass…

We derive the upper limit to the ejecta mass of S190814bv, a black hole-neutron star merger candidate, through the radiative transfer simulations for kilonovae with the realistic ejecta density profile as well as the detailed opacity and…

高能天体物理现象 · 物理学 2020-06-09 Kyohei Kawaguchi , Masaru Shibata , Masaomi Tanaka

Context. A longstanding challenge for understanding classical Cepheids is the Cepheid mass discrepancy, where theoretical mass estimates using stellar evolution and stellar pulsation calculations have been found to differ by approximately…

太阳与恒星天体物理 · 物理学 2015-05-27 Hilding R. Neilson , Matteo Cantiello , Norbert Langer

The use of Type Ia supernovae (SNe Ia) as cosmological standard candles is a key to solving the mystery of dark energy. Improving the calibration of SNe Ia increases their power as cosmological standard candles. We find tentative evidence…

天体物理学 · 物理学 2009-06-23 Yun Wang , Nicholas Hall

The lightcurve of the explosion of a star with a radius <10-100Rsun is powered mostly by radioactive decay. Observationally such events are dominated by hydrogen deficient progenitors and classified as Type I supernovae: white dwarf…

高能天体物理现象 · 物理学 2015-06-11 Anthony L. Piro , Ehud Nakar

Mass loss bridges the gap between massive stars and supernovae (SNe) in two major ways: (i) theoretically it is the amount of mass lost that determines the mass of the star prior to explosion, and (ii) observations of the circumstellar…

太阳与恒星天体物理 · 物理学 2017-10-11 Jorick S. Vink

Type Ia supernovae are widely accepted to be the outcomes of thermonuclear explosions in white dwarf stars. However, many details of these explosions remain uncertain (e.g. the mass, ignition mechanism, and flame speed). Theory predicts…

太阳与恒星天体物理 · 物理学 2017-10-11 W. E. Kerzendorf , C. McCully , S. Taubenberger , A. Jerkstrand , I. Seitenzahl , A. J. Ruiter , J. Spyromilio , K. S. Long , C. Fransson

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…

We present an improved version of a light curve model, which is able to estimate the physical properties of different types of core-collapse supernovae having double-peaked light curves, in a quick and efficient way. The model is based on a…

天体物理仪器与方法 · 物理学 2016-06-09 Andrea P. Nagy , József Vinkó

Hydrogen-rich Type II supernovae (SNe II) are the most frequently observed class of core-collapse SNe (CCSNe). However, most studies that analyse large samples of SNe II lack events with absolute peak magnitudes brighter than -18.5 mag at…

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