Results 21 to 30 of about 1,204,542 (190)
Understanding the cosmic abundance of 22Na: Lifetime measurements in 23Mg [PDF]
EPJ Web of Conferences, 2023 Simulations of explosive nucleosynthesis in novae predict the production of 22Na, a key astronomical observable to constrain nova models. Its gamma-ray line at 1.275 MeV has not yet been observed by the gamma-ray space telescopes.
Fougères C. +3 more
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Adding Classical Novae Contribution to the Isotopic Scaling model [PDF]
, 2023 The Isotopic Scaling model(West & Heger, 2013) provides a complete average isotopic decomposition for our Milky Way as a function of metallicity and it requires an initial Solar Abundance Decomposition as a starting point.
Chen, Mengxi
core +2 more sources
The Astrophysical Journal Supplement Series, 2023 M87 has been monitored with a cadence of 5 days over a span of 9 months through the near-ultraviolet (NUV; F275W) and optical (F606W) filters of the Wide Field Camera 3 (WFC3) of the Hubble Space Telescope.
Michael M. Shara +12 more
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Theory of Classical Novae [PDF]
Proceedings of The Golden Age of Cataclysmic Variables and Related Objects - III — PoS(Golden2015), 2017 We briefly review the current understanding of classical novae. Nova light curves basically exhibit a homologous nature, beside the dust blackout and oscillatory behavior, in spite of very different evolution timescale from fast to slow novae. Optically thick winds governs the evolution of decay phase of nova outbursts, of which mass-loss rate ...
Mariko Kato, Izumi Hachisu
openaire +1 more source
, 2021 The unprecedented sky coverage and observing cadence of the All-Sky Automated Survey for SuperNovae (ASAS-SN) has resulted in the discovery and continued monitoring of a large sample of Galactic transients.
Chomiuk, Laura +14 more
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Underground study of the 17 O(p,γ )18F reaction at Gamow energies for classical novae [PDF]
, 2014 Classical novae are explained as thermonuclear explosions on the surface of white dwarf stars accreting hydrogen-rich material from less evolved companions in binary star systems.
Scott, David Andrew
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The Cyclic Evolution of Classical Novae [PDF]
International Astronomical Union Colloquium, 1990 The cyclic evolution of classical novae (CN) cannot be observed, as in the case of recurrent or dwarf novae. The duration of a typical cycle may range from a few thousand to a few 105 years. Thus we have to rely on theoretical studies for understanding the periodic outbursts — due to thermonuclear runaways (TNR) — on the surface of accreting white ...
openaire +1 more source
The Ejecta of Classical Novae [PDF]
Symposium - International Astronomical Union, 2001 Classical novae are interacting binary stars in which a thermonuclear runaway in material accreted onto a white dwarf from a companion red dwarf results in the ejection of around 10−4M⊙ at hundreds to thousands of kilometres per second. Recent Hubble Space Telescope and MERLIN imaging of the expanding ejecta from several classical novae are presented ...
T.J. O'Brien +4 more
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The onset of jets in classical novae [PDF]
, 2021 We present two further classical novae, V906 Car and V5668 Sgr, which show jets and accretion disc spectral signatures in their H α complexes throughout the first 1000 d following their eruptions.
Lee, Steven +3 more
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Relation between Long-term Activity and Luminosity of the Pre- and Post-novae CT Ser and V446 Her
The Astronomical Journal, 2023 We show a relation of the pre- and post-nova activity of CT Ser (nova 1948) and V446 Her (nova 1960), known to have remarkably similar orbital periods P _orb . We use both photographic and CCD photometric observations.
Vojtěch Šimon
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