Results 71 to 80 of about 1,204,542 (190)

Fermi-LAT detections of the classical novae V1723 Sco and V6598 Sgr in a multi-wavelength context

open access: yesAstronomy & Astrophysics
Context. Numerous classical novae have been observed to emit γ-rays (E > 100 MeV) detected by the Fermi-LAT. The prevailing hypothesis attributes this emission to the interaction of accelerated particles within shocks in the nova ejecta.
Fauverge P.   +10 more
doaj   +1 more source

A search for cool molecular gas in GK Persei and other classical novae

open access: yes, 2022
Detecting molecular line emission from classical nova remnants has the potential to reveal information on the composition of the ejecta, in particular accurate isotopic ratios in the matter processed by a thermonuclear runaway.
Tomek Kamiński   +7 more
core   +1 more source

Long-Term Photometry of Very Slow Novae

open access: yesOpen Astronomy, 2003
Long-term photographic, photoelectric and recent CCD photometry of the classical nova V723 Cas and symbiotic novae V1329 Cyg, PU Vul, V1016 Cyg and HM Sge were used to find their orbital periods.
Chochol D.   +3 more
doaj   +1 more source

Recurrent Novae — A Review

open access: yesActa 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   +1 more source

A Full Cycle in the Evolution of a Classical Nova [PDF]

open access: yesInternational Astronomical Union Colloquium, 1987
AbstractA classical nova model was evolved through a complete cycle, i.e. accretion leading to outburst, mass loss and again accretion, ending in another outburst, by means of an implicit Lagrangian hydrodynamic code, which included diffusion (concentration, pressure and thermal terms), as well as an extensive nuclear reactions network between 28 ...
openaire   +1 more source

Spectroscopic monitoring of classical and recurrent novae at Asiago Observatory

open access: yes, 2020
. In the course of the monitoring of spectral evolutions of classical and recurrent novae on outbursts, 11 classical novae and 2 recurrent novae (U Sco, CI Aql) were observed at Padova-Asiago Observatory in the years from 1990 to 2001.
T Iijima
core  

A 9 Month Hubble Space Telescope Near-UV Survey of M87. II. A Strongly Enhanced Nova Rate near the Jet of M87

open access: yesThe Astrophysical Journal
The 135 classical novae that we have discovered in M87 with two Hubble Space Telescope imaging surveys appear to be strongly concentrated along that galaxy’s jet.
Alec M. Lessing   +5 more
doaj   +1 more source

A Demarcation Criterion for Hydrogen Burning of Millinovae

open access: yesThe Astrophysical Journal
Millinovae are a new class of transient supersoft X-ray sources with no clear signature of mass ejection. They show similar triangle shapes of V / I band light curves with 1000 times fainter peaks than typical classical novae. Maccarone et al.
Izumi Hachisu, Mariko Kato
doaj   +1 more source

Classical nova explosions

open access: yes, 2004
14 pages, review paper for the conference 'The Astrophysics of Cataclysmic Variables and Related Objects', Strasbourg, France, 11-16 July 2004 (ASP Conference Series, Eds. J.M. Hameury and J.P. Lasota)
openaire   +2 more sources

A WISE view of novae - I. The data [PDF]

open access: yes, 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 ...

core   +1 more source

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