Results 1 to 10 of about 459 (263)
Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes [PDF]
Nature Communications, 2023 Classical novae are thermonuclear explosions in stellar binary systems, and important sources of 26Al and 22Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, 22Na remains untraceable.
Chloé Fougères +61 more
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The Progenitor Systems of Classical Novae in M31 [PDF]
The Astrophysical JournalWe present the first characterization of the statistical relationship between a large sample of novae in M31 and their progenitor stellar populations in the form of a delay time distribution.
C. S. Abelson +6 more
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Classical Novae at Radio Wavelengths [PDF]
The Astrophysical Journal Supplement Series, 2021 Abstract We present radio observations (1–40 GHz) for 36 classical novae, representing data from over five decades compiled from the literature, telescope archives, and our own programs. Our targets display a striking diversity in their optical parameters (e.g., spanning optical fading timescales, t 2 = 1–263 days), and
Chomiuk, Laura +22 more
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Classical novae with CUBES [PDF]
Experimental Astronomy, 2022 Among the main science cases that have motivated the proposal of CUBES, a new high-resolution spectrograph for the Very Large Telescope at the European Southern Observatory, there is the study and the characterisation of the nucleosynthesis of beryllium.
Izzo, Luca +5 more
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123–321 models of classical novae [PDF]
Astronomy & Astrophysics, 2020 Context.High-resolution spectroscopy has revealed large concentrations of CNO and sometimes other intermediate-mass elements (e.g., Ne, Na, Mg, or Al, for ONe novae) in the shells ejected during nova outbursts, suggesting that the solar composition material transferred from the secondary mixes with the outermost layers of the underlying white dwarf ...
Jordi José +2 more
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Nucleosynthesis in classical novae [PDF]
Nuclear Physics A, 2001 A general review of the relevance of classical novae for the chemical evolution of the Galaxy, as well as for Galactic radioactivity is presented. A special emphasis is put on the pioneering work done by Jim Truran in this field of research. The impact of recent developments in nuclear astrophysics on nova nucleosynthesis, together with the prospects ...
Hernanz, M., Jose, J., Coc, A.
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Gap Transients Interacting with Circumstellar Medium
Universe, 2022 In the last 20 years, modern wide-field surveys discovered a new class of peculiar transients, which lie in the luminosity gap between standard supernovae and classical novae. These transients are often called “intermediate luminosity optical transients”
Yongzhi Cai +3 more
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Classical and Recurrent Nova Models [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractRemarkable progress in the understanding of nova outbursts has been achieved through combined efforts in photometry, spectroscopy and numerical simulations. According to the thermonuclear runaway model, novae are powered by thermonuclear explosions in the hydrogen-rich envelopes transferred from a low-mass stellar companion onto a close white ...
José Pont, Jordi +5 more
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NUCLEAR THERMOMETERS FOR CLASSICAL NOVAE [PDF]
The Astrophysical Journal, 2012 12 pages, 7 figures, accepted to ...
Downen, Lori N. +3 more
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