Results 11 to 20 of about 838,554 (289)

A triple star origin for T Pyx and other short-period recurrent novae [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
Recurrent novae are star systems in which a massive white dwarf accretes material at such a high rate that it undergoes thermonuclear runaways every 1 - 100 years.
C. Knigge, S. Toonen, T. Boekholt
semanticscholar   +1 more source

For how long are particles accelerated in shells of recurrent novae? [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2022
Galactic novae are at present a well established class of γ-ray sources. We wonder for how long the mechanism of acceleration of electrons operates in the shells of novae.
W. Bednarek
semanticscholar   +1 more source

A Search for recurrent novae among Far Eastern guest stars [PDF]

open access: yesNew Astronomy, 2021
According to recent theoretical studies, classical novae are expected to erupt every ∼105 years, while the recurrence time scale of modern recurrent novae (Nr) stars ranges from 10 to ∼100 years.
S. Hoffmann, N. Vogt
semanticscholar   +1 more source

Recurrent Novae in the Local Group [PDF]

open access: yesProceedings of The Golden Age of Cataclysmic Variables and Related Objects - III — PoS(Golden2015), 2017
M. Orio
openaire   +2 more sources

Early Infrared and Visible Spectra from the 2022 Outburst of the Recurrent Novae U Scorpii

open access: yesResearch Notes of the AAS, 2023
Spectroscopy from 0.46–2.5 μm is presented for the 2022 outburst of the recurrent nova U Scorpii from 2.54, 3.60, and 8.59 days after maximum light.
R. Rudy   +3 more
semanticscholar   +1 more source

The nature of recurrent novae [PDF]

open access: yesAstrophysics and Space Science, 1987
AbstractThe observational properties and outburst histories of each member of the small class of recurrent novae are reviewed, with the objective of identifying the outburst mechanisms for these systems. Examples are found of both accretion-powered outbursts (T CrB and RS Oph) and thermonuclear-powered outbursts (T Pyx and U Sco).
R.F. Webbink   +3 more
openaire   +2 more sources

Recurrent nova IM Normae [PDF]

open access: yesAstronomy & Astrophysics, 2002
We detected the second historical outburst of the 1920 nova IM Nor. Accurate astrometry of the outbursting object revealed the true quiescent counterpart having a magnitude of R=17.0 mag and B=18.0 mag. We show that the quiescent counterpart shows a noticeable variation.
Kato, T.   +3 more
openaire   +2 more sources

Ultraviolet and X-ray Light-Curves of Novae Observed by the Neil Gehrels Swift Observatory

open access: yesUniverse, 2022
With rapid response capabilities, and a daily planning of its observing schedule, the Neil Gehrels Swift Observatory is ideal for monitoring transient and variable sources.
Kim L. Page   +2 more
doaj   +1 more source

Supersoft X-ray phases of recurrent novae as an indicator of their white dwarf masses [PDF]

open access: yes, 2020
We have examined the optical/X-ray light curves of seven well-observed recurrent novae, V745 Sco, M31N 2008-12a, LMC N 1968, U Sco, RS Oph, LMC N 2009a, T Pyx, and one recurrent nova candidate LMC N 2012a.
M. Kato, I. Hachisu
semanticscholar   +1 more source

Classical and Recurrent Nova Models [PDF]

open access: yesProceedings 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
openaire   +2 more sources

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