High-energy neutrinos from fast winds in novae [PDF]
Monthly Notices of the Royal Astronomical Society, 2022 We discuss a scenario in which TeV neutrinos are produced during explosions of Novae. It is argued that hadrons are accelerated to very high energies in the inner part of a Nova wind, as a result of reconnection of the strong magnetic field of a White ...
Wlodek Bednarek
exaly +5 more sources
A Light Curve Analysis of Recurrent and Very Fast Novae in Our Galaxy, Magellanic Clouds, and M31 [PDF]
Astrophysical Journal, Supplement Series, 2018 We analyzed optical, UV, and X-ray light curves of 14 recurrent and very fast novae in our Galaxy, Magellanic Clouds, and M31, and obtained their distances and white dwarf (WD) masses.
Izumi Hachisu, Mariko Kato
exaly +5 more sources
A Comprehensive Light-curve Model of the Very Fast Nova V1674 Herculis [PDF]
The Astrophysical JournalV1674 Her is one of the fastest novae, of which the very early phase is well observed, including optical rise to the peak over 10 mag. We present a full theoretical light-curve model of V1674 Her.
Mariko Kato +2 more
doaj +4 more sources
Abundance Analysis of the Extremely Fast ONeMg Novae V838 Herculis and V4160 Sagittarii
Astrophysical Journal, 2007 V838 Her and V4160 Sgr were two of the fastest classical novae ever observed, exhibiting light curve declines of 2 mag in less than 2 days. Both novae also showed strong neon emission lines, indicative of an outburst occurring on an oxygen-neon-magnesium white dwarf.
G. Schwarz +3 more
exaly +7 more sources
Quark-Novae in the outskirts of galaxies: an explanation of the fast radio burst phenomenon [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 We show that old isolated neutron stars in groups and clusters of galaxies experiencing a Quark-Nova phase (QN: an explosive transition to a quark star) may be the sources of FRBs.
R. Ouyed, D. Leahy, N. Koning
semanticscholar +4 more sources
Defining Characteristics of Fast Novae [PDF]
International Astronomical Union Colloquium, 1979 Scrutiny of the light curves of the common novae yields important clues concerning both the nature of the nova outburst and the characteristics of the underlying white dwarfs. Ultraviolet and infrared observations have served to make available essentially complete bolometric light curves for several recent novae.
J. Truran
semanticscholar +2 more sources
Multiple outflows and delayed ejections revealed by early imaging of novae. [PDF]
Nat AstronNovae are thermonuclear eruptions on accreting white dwarfs in interacting binaries. Although most of the accreted envelope is expelled, the mechanism—impulsive ejection, multiple outflows or prolonged winds, or a common-envelope interaction—remains ...
Aydi E +41 more
europepmc +3 more sources
Nova remnants … the fast siblings of planetary nebulae
Proceedings of the International Astronomical Union, 2023 Classical and recurrent novae are luminous eruptions taking place in binary star systems in which a white dwarf accretes material from a non-degenerate stellar companion.
M. A. Guerrero, E. Santamaría
semanticscholar +3 more sources
Formation of an Optically Thick Shocked Shell in the Very Fast Nova V1674 Herculis: The Origin of Superbrightness [PDF]
The Astrophysical JournalV1674 Her is the fastest ( t _2 ∼ 1 day) classical nova in our Galaxy, and its absolute V peak of ${M}_{V,{\rm{\max }}}\sim -10.2$ is 1 mag brighter than typical very fast novae. Such a nova is sometimes called a superbright nova.
Izumi Hachisu, Mariko Kato
doaj +2 more sources
Optical Detection of the X-Ray Flash in the Very Fast Nova V1674 Her: Optical Contribution of the Irradiated Accretion Disk [PDF]
The Astrophysical JournalV1674 Her is one of the fastest and brightest novae, characterized by dense optical photometry in the premaximum phase—a rise from g = 17 to 7 mag, over one-quarter of a day.
Izumi Hachisu, Mariko Kato
doaj +2 more sources