Results 51 to 60 of about 1,255,451 (193)
The Astrophysical JournalThe rising phase toward the optical maximum of a classical nova is one of the last frontiers of nova study. Constructing free–free emission model light curves based on our fully self-consistent nova explosion models, we present several theoretical light ...
Mariko Kato +2 more
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The awakening of a classical nova from hibernation [PDF]
Nature, 2016 Cataclysmic variable stars (CVs) are close binary systems consisting of a white dwarf (primary) that is accreting matter from a low-mass companion star (secondary). From time to time such systems undergo large-amplitude brightenings. The most spectacular eruptions, over $10^4$ times in brightness, occur in classical novae and are caused by a ...
Mroz, P. +11 more
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A WISE view of novae - I. The data [PDF]
, 2014 We present the results of data-mining the Wide-field Infrared Survey Explorer (WISE) archive for data on classical and recurrent novae. We find that the detections are consistent with dust emission, line emission, emission by a stellar photosphere, or a ...
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Numerical modelling of the classical nova outburst [PDF]
International Astronomical Union Colloquium, 1988 AbstractWe describe a mechanism that promises to explain how classical nova outbursts take place on white dwarfs of 1 M⊙ or less and for accretion rates of 4 × 10−10 M⊙ yr−1 or greater.
Kutter, G. S., Sparks, W. M.
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Suppression of Shock X-Ray Emission in Novae from Turbulent Mixing with Cool Gas
The Astrophysical JournalShock interaction in classical novae occurs when a fast outflow from the white dwarf ≳1000 km s ^−1 collides with a slower, cooler shell of gas released earlier in the outburst.
Brian D. Metzger +2 more
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Spectra of V1405 Cas at the Very Beginning Indicate a Low-mass ONeMg White Dwarf Progenitor
The Astrophysical Journal, 2023 The lowest possible mass of ONeMg white dwarfs (WDs) has not been clarified despite its importance in the formation and evolution of WDs. We tackle this issue by studying the properties of V1405 Cas (Nova Cassiopeiae 2021), which is an outlier given a ...
Kenta Taguchi +11 more
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Classical novae and recurrent novae: General properties [PDF]
, 1993 We describe the observable characteristics of classical novae and recurrent novae obtained by different techniques (photometry, spectroscopy, and imaging) in all the available spectral ranges.
Selvelli, Pierluigi +2 more
core
Recurrent Nova V2487 Oph Had Superflares in 1941 and 1942 with Radiant Energies of 1042.5±1.6 erg
The Astrophysical JournalV2487 Ophiuchi (V2487 Oph) is a recurrent nova with classical nova eruptions in 1900 and 1998, and it is also the most extreme known superflare star. These superflares are roughly hour-long flares with amplitudes and optical energies reaching up to 1.10 ...
Bradley E. Schaefer
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, 1993 Recurrent novae seem to be a rather inhomogeneous group: T CrB is a binary with a M III companion; U Sco probably has a late dwarf as companion. Three are fast novae; two are slow novae. Some of them appear to have normal chemical composition; others may
Selvelli, Pierluigi, Hack, Margherita
core
The Astrophysical JournalRecurrent nova U Scorpii (U Sco) is one of the prototypes for a Type Ia supernova progenitor. The logic is that the white dwarf is near the Chandrasekhar mass and gas is accumulating onto its surface at a near-maximal accretion rate, so it will soon ...
Bradley E. Schaefer, Gordon Myers
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