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相关论文: Prospects in Classical Nova Modeling and Nucleosyn…

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This overview discusses issues relevant to modeling nucleosynthesis in type II supernovae and implications of detailed studies of the ejecta. After a brief presentation of the most common approaches to stellar evolution and parameterized…

天体物理学 · 物理学 2007-05-23 T. Rauscher

Classical novae participate in the cycle of Galactic chemical evolution in which grains and metal enriched gas in their ejecta, supplementing those of supernovae, AGB stars, and Wolf-Rayet stars, are a source of heavy elements for the ISM.…

天体物理学 · 物理学 2009-06-23 S. Starrfield , C. Iliadis , W. R. Hix , F. X. Timmes , W. M. Sparks

Novae, which are the sudden visual brightening triggered by runaway thermonuclear burning on the surface of an accreting white dwarf, are fairly common and bright events. Despite their astronomical significance as nearby laboratories for…

A classical nova is an eruption on the surface of a white dwarf in an accreting binary system. The material ejected from the white dwarf surface generally forms an axisymmetric shell. The shaping mechanisms of nova shells are probes of the…

Context. Classical novae are thermonuclear explosions hosted by accreting white dwarfs in stellar binary systems. Material piles up on top of the white dwarf star under mildly degenerate conditions, driving a thermonuclear runaway. The…

太阳与恒星天体物理 · 物理学 2018-05-23 Joana Figueira , Jordi Jose , Enrique Garcia-Berro , Simon W. Campbell , Domingo Garcia-Senz , Shazrene Mohamed

The discovery of GeV gamma-rays from classical novae has led to a reassessment of these garden-variety explosions, and highlighted their importance for understanding radiative shocks, particle acceleration, and dust formation in more…

Over the last 40 years, multi-frequency observations, coupled with advances in theoretical modelling, have led to a much fuller understanding of the nova phenomenon. Here I give a brief review of the current state of knowledge of Classical…

太阳与恒星天体物理 · 物理学 2011-11-22 M. F. Bode

The main observational properties and resulting classification of supernovae (SNe) are briefly reviewed. Then we discuss the progress in modeling of two basic types of SNe - the thermonuclear and core-collapse ones, with special emphasis…

天体物理学 · 物理学 2008-04-29 D. K. Nadyozhin

The quest for the supernova explosion mechanism has been one of the outstanding challenges in computational astrophysics for several decades. Simulations have now progressed to a stage at which the solution appears close and neutrino and…

太阳与恒星天体物理 · 物理学 2011-12-09 Bernhard Mueller , Hans-Thomas Janka , Andreas Marek , Florian Hanke , Annop Wongwathanarat , Ewald Mueller

Classical novae produce radioactive nuclei which are emitters of gamma-rays in the MeV range. Some examples are the lines at 478 and 1275 keV (from 7Be and 22Na) and the positron-electron annihilation emission (511 keV line and a continuum…

高能天体物理现象 · 物理学 2013-01-09 M. Hernanz

The manuscript reviews progress achieved in recent years in various aspects of nuclear astrophysics, including stellar nucleosynthesis, nuclear aspects of supernova collapse and explosion, neutrino-induced reactions and their possible role…

核理论 · 物理学 2008-11-26 K. Langanke

Context. Classical novae are thermonuclear explosions that take place in the envelopes of accreting white dwarfs in stellar binary systems. The material transferred onto the white dwarf piles up under degenerate conditions, driving a…

太阳与恒星天体物理 · 物理学 2016-09-21 Jordi Jose , Ghina M. Halabi , Mounib F. El Eid

Novae and supernovae play a key role in many fields of Astrophysics and Cosmology. Despite their importance, an accurate description of which objects explode and why and how they explode is still lacking. One of the main characteristics of…

高能天体物理现象 · 物理学 2021-01-11 J. Isern , M. Hernanz , E. Bravo , S. Grebenev , P. Jean , M. Renaud , T. Siegert , J. Vink

We study the role played both by novae and single stars in enriching the ISM of the Galaxy with CNO group nuclei, in the framework of a detailed successful model for the chemical evolution of both the Galactic halo and disc. Once all the…

天体物理学 · 物理学 2009-11-07 Donatella Romano , Francesca Matteucci

No doubt, among the most exciting discoveries of the third millennium thus far are {\bf Oscillations of Massive Neutrinos} and {\bf Dark Energy} that leads to an accelerated expansion of the Universe. Accordingly, Nuclear Physics is…

天体物理学 · 物理学 2009-11-10 Moshe Gai

Classical novae are explosive phenomena that take place in stellar binary systems. They are powered by mass transfer from a low-mass, main sequence star onto a white dwarf. The material piles up under degenerate conditions and a…

太阳与恒星天体物理 · 物理学 2015-05-20 Jordi Casanova , Jordi Jose , Enrique Garcia-Berro , Alan Calder , Steven N. Shore

Classical novae are significant sources of interstellar material, especially carbon, nitrogen and oxygen. These standard candles are only behind supernovae and $\gamma$-ray bursts as the third brightest objects in the sky, and the most…

太阳与恒星天体物理 · 物理学 2013-01-08 Péter Németh

Classical novae are stellar explosions occurring in binary systems, consisting of a white dwarf and a main sequence companion. Thermonuclear runaways on the surface of massive white dwarfs, consisting of oxygen and neon, are believed to…

太阳与恒星天体物理 · 物理学 2015-06-12 Lori N. Downen , Christian Iliadis , Jordi José , Sumner Starrfield

Classical novae are the results of surface thermonuclear explosions of H-rich material accreted by white dwarfs (WDs) from their low-mass main-sequence or red-giant binary companions. Chemical composition analysis of their ejecta shows that…

太阳与恒星天体物理 · 物理学 2012-10-30 Pavel A. Denissenkov , Falk Herwig , Marco Pignatari , James W. Truran

Supernova remnants (SNRs) are the outcome of supernovae (SNe, either core-collapse or thermonuclear). The remnant results from the interaction between the stellar ejecta and the ambient medium around the progenitor star. Young SNRs are…

高能天体物理现象 · 物理学 2020-02-18 Gilles Ferrand