Results 1 to 10 of about 4,179 (318)
The Astrophysical Journal Supplement Series, 2015 The reported positions of 964 suspected nova eruptions in M31 recorded through the end of calendar year 2013 have been compared in order to identify recurrent nova candidates.
A. W. Shafter +10 more
core +12 more sources
Acta Polytechnica CTU Proceedings, 2015 In recent years, recurrent nova eruptions are often observed very intensely in wide range of wavelengths from radio to optical to X-rays. Here I present selected highlights from recent multi-wavelength observations. The enigma of T Pyx is at the heart of
K. Mukai
doaj +5 more sources
Hydrodynamic Studies of the Evolution of Recurrent, Symbiotic and Dwarf Novae: the White Dwarf Components are Growing in Mass [PDF]
Open Astronomy, 2012 Symbiotic binaries are systems containing white dwarfs (WDs) and red giants. Symbiotic novae are those systems in which thermonuclear eruptions occur on the WD components.
Starrfield S. +6 more
doaj +2 more sources
High Energy Emission of Symbiotic Recurrent Novae: RS Oph and V407 Cyg [PDF]
Open Astronomy, 2012 Recurrent novae occurring in symbiotic binaries are candidate sources of high energy photons, reaching GeV energies. Such emission is a consequence of particle acceleration leading to pion production.
Hernanz M., Tatischeff V.
doaj +2 more sources
Structural Diversity and Bioactivities of Peptaibol Compounds From the Longibrachiatum Clade of the Filamentous Fungal Genus Trichoderma [PDF]
Frontiers in Microbiology, 2019 This study examined the structural diversity and bioactivity of peptaibol compounds produced by species from the phylogenetically separated Longibrachiatum Clade of the filamentous fungal genus Trichoderma, which contains several biotechnologically ...
Tamás Marik +14 more
doaj +2 more sources
Ultraviolet and X-ray Light-Curves of Novae Observed by the Neil Gehrels Swift Observatory
Universe, 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
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
doaj +1 more source
Theory of Nova Outbursts and Type Ia Supernovae
Acta Polytechnica CTU Proceedings, 2015 We briefly review the current theoretical understanding of the light curves of novae. These curves exhibit a homologous nature, dubbed the universal decline law, and when time-normalized, they almost follow a single curve independently of the white dwarf
M. Kato, I. Hachisu
doaj +1 more source
Evidence for Multiple Shocks from the γ-Ray Emission of RS Ophiuchi
The Astrophysical Journal, 2023 In 2021 August, the Fermi Large Area Telescope, H.E.S.S., and MAGIC detected GeV and TeV γ -ray emission from an outburst of recurrent nova RS Ophiuchi. This detection represents the first very high-energy γ -rays observed from a nova, and it opens a new
Rebecca Diesing +6 more
doaj +1 more source
Odessa Astronomical Publications, 2007 The WZ Sge type stars is a rare subclass of the cataclysmic variables (CVs). It possesses the properties of both dwarf novae and recurrent novae. The WZ Sge stars have the shortest orbital periods (typically 80 - 90 minutes) known among the dwarf novae ...
E. P. Pavlenko
doaj +1 more source