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Classical novae are fascinating stellar events, at the crossroads of astrophysics, nuclear physics and cosmochemistry. In this review, we outline the history of nova modeling with special emphasis on recent advances and perspectives in…

Astrophysics · Physics 2009-11-10 Jordi Jose

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.…

Astrophysics · Physics 2009-06-23 S. Starrfield , C. Iliadis , W. R. Hix , F. X. Timmes , W. M. Sparks

Detailed nucleosynthesis in the ejecta of classical novae has been determined for a grid of hydrodynamic nova models. The reported 14 evolutionary sequences, followed from the onset of accretion up to the explosion and ejection stages, span…

Astrophysics · Physics 2008-11-26 Jordi Jose , Margarita Hernanz

Classical novae eject significant amounts of matter into the interstellar medium, as a result of thermonuclear runaways. Nucleosynthesis associated with nova outbursts includes products from explosive H burning, such as 17O, 15N and 13C,…

Astrophysics · Physics 2007-05-23 Jordi Jose , Alain Coc , Margarita Hernanz

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…

Solar and Stellar Astrophysics · Physics 2016-09-21 Jordi Jose , Ghina M. Halabi , Mounib F. El Eid

The mechanism of classical novae explosions is explained, together with some of their observational properties. The scarce but not null impact of novae in the chemical evolution of the Milky Way is analyzed, as well as their relevance for…

Astrophysics · Physics 2009-10-31 Margarita Hernanz , Jordi Jose

Classical novae are among the most frequent transient events in the Milky Way, and key agents of ongoing nucleosynthesis. Despite their large numbers, they have never been observed in soft $\gamma$-ray emission. Measurements of their…

High Energy Astrophysical Phenomena · Physics 2021-06-30 Thomas Siegert , Sohan Ghosh , Kalp Mathur , Ethan Spraggon , Akshay Yeddanapudi

Nova explosions occur on the white dwarf component of a Cataclysmic Variable binary stellar system that is accreting matter lost by its companion. When sufficient material has been accreted by the white dwarf, a thermonuclear runaway occurs…

Solar and Stellar Astrophysics · Physics 2016-05-16 S. Starrfield , C. Iliadis , W. R. Hix

The sources of nuclear uncertainties in nova nucleosynthesis have been identified using hydrodynamical nova models. Experimental efforts have followed and significantly reduced those uncertainties. This is important for the evaluation of…

Astrophysics · Physics 2009-06-23 Alain Coc

The nucleosynthesis and other observable consequences of a nova outburst depend sensitively on the details of the thermonuclear runaway which initiates the outburst. One important source of uncertainty in our current models is the nuclear…

There is a wide consensus in the astrophysics community that the mechanism underlying the observed Classical Nova eruptions is a surface thermonuclear runaway. We start this short review with the main observational facts that lead to the…

Solar and Stellar Astrophysics · Physics 2015-05-28 S. A. Glasner , J. W. Truran

In this paper we study the impact of nova nucleosynthesis on models for the chemical evolution of the Galaxy. It is found that novae are likely to be the sources of non-negligible fractions of the 7Li and 13C observed in disc stars.…

Astrophysics · Physics 2007-05-23 Donatella Romano , Francesca Matteucci

A review of the present status of nova modeling is made, with a special emphasis on some specific aspects. What are the main nucleosynthetic products of the explosion and how do they depend on the white dwarf properties (e.g. mass, chemical…

Astrophysics · Physics 2007-05-23 Margarita Hernanz

Thermonuclear runaways driven by accretion into degenerate white dwarf cores are the source that power classical nova outbursts. In this paper, we identify the dominant nuclear paths involved in the synthesis of intermediate-mass elements,…

Astrophysics · Physics 2016-08-30 Jordi Jose , Alain Coc , Margarita Hernanz

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…

Solar and Stellar Astrophysics · Physics 2015-06-12 Lori N. Downen , Christian Iliadis , Jordi José , Sumner Starrfield

Context. The explosive burning that drives nova eruptions results in unique nucleosynthesis that heavily over-produces certain isotopes relative to the solar abundance. However, novae are often ignored when considering the chemical…

Astrophysics of Galaxies · Physics 2024-07-29 Alex J. Kemp , Amanda I. Karakas , Andrew R. Casey , Benoit Cote , Robert G. Izzard , Zara Osborn

We survey our understanding of classical novae: non-terminal, thermonuclear eruptions on the surfaces of white dwarfs in binary systems. The recent and unexpected discovery of GeV gamma-rays from Galactic novae has highlighted the…

High Energy Astrophysical Phenomena · Physics 2021-12-01 Laura Chomiuk , Brian D. Metzger , Ken J. Shen

Infrared and ultraviolet observations of nova light curves have confirmed grain formation in their expanding shells that are ejected into the interstellar medium by a thermonuclear runaway. In this paper, we present isotopic ratios of…

Astrophysics · Physics 2009-11-10 Jordi Jose , Margarita Hernanz , Sachiko Amari , Katharina Lodders , Ernst Zinner

We adopt up-to-date yields of 7Li, 13C, 15N from classical novae and use a well tested model for the chemical evolution of the Milky Way in order to predict the temporal evolution of these elemental species in the solar neighborhood. In…

Astrophysics · Physics 2016-01-27 Donatella Romano , Francesca Matteucci

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…

Astrophysics · Physics 2009-11-07 Donatella Romano , Francesca Matteucci
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