Results 101 to 110 of about 1,255,451 (193)

Recurrent Novae, Classical Novae, Symbiotic Novae, and Population II Novae

open access: yes, 2001
Light curve analysis of decay phase of nova outburst are summarized. Nova duration is determined by the strong wind mass-loss which depends only on the white dwarf mass. Fast novae correspond very massive white dwarfs and very slow novae correspond almost lower mass limit of white dwarfs.
openaire   +2 more sources

Optical Detection of the X-Ray Flash in the Very Fast Nova V1674 Her: Optical Contribution of the Irradiated Accretion Disk

open access: yesThe Astrophysical Journal
V1674 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   +1 more source

Prospects for detectability of classical novae with INTEGRAL

open access: yes, 2001
Classical novae are potential gamma-ray emitters, both in lines and in a continuum. Continuum emission (at energies between 20-30 and 511 keV) and line emission at 511 keV are related to positron annihilation and its Comptonization in the expanding shell; 18F is the main responsible of positron production.
Hernanz, M.   +3 more
openaire   +3 more sources

Visite de l'exposition « Naissance de la sculpture gothique. Saint-Denis, Paris, Chartres (1135-1150) »

open access: yes, 2018
L'association Artes Novae organise une visite de l'exposition « Naissance de la sculpture gothique. Saint-Denis, Paris, Chartres, 1135-1150 » (10 octobre 2018-21 janvier 2019) conduite par Philippe Plagnieux, professeur en histoire de l'art médiéval ...
Artes Novae
core  

Irradiation-driven Formation of Supersoft X-Ray Sources following Classical Novae

open access: yesThe Astrophysical Journal
Supersoft X-ray sources (SSSs) are characterized by persistent thermonuclear burning on the surfaces of white dwarfs (WDs). The standard model requires high mass-transfer rates of ∼10 ^−7 M _⊙ yr ^−1 from massive companions, presenting a theoretical ...
Weitao Zhao   +3 more
doaj   +1 more source

Upper Bound of Ejecta Mass in a Nova Outburst

open access: yesThe Astrophysical Journal
We present the maximum ejecta mass ${({M}_{{\rm{ej}}})}_{{\rm{\max }}}$ and the maximum ratio of ejecta mass and accreted mass ${({M}_{{\rm{ej}}}/{M}_{{\rm{acc}}})}_{{\rm{\max }}}$ of a nova for various white dwarf (WD) masses ( M _WD  = 0.6–1.38 M _ ...
Izumi Hachisu, Mariko Kato
doaj   +1 more source

Getting to know classical novae with Swift

open access: yesJournal of High Energy Astrophysics, 2015
11 pages.
openaire   +2 more sources

The space density of classical novae in the galactic disk [PDF]

open access: yes, 1993
A new determination of the space density of classical novae is presented. Comparison of the properties of nova populations in M3 1, the Galaxy and the LMC, permits to set the outburst rate of novae belonging to the disk of the Galaxy to 5±2.5 novae per ...
DELLA VALLE, Massimo, Duerbeck, H. W.
core  

Rencontre avec Aurélia Cohendy autour de l'exposition "Quand la peinture était dans les livres"

open access: yes, 2018
L’association Artes Novae a le plaisir de vous inviter à une rencontre avec Aurélia Cohendy autour de l’exposition « Quand la peinture était dans les livres » dont elle a assuré le commissariat avec Magali Vène et qui est présentée à la Bibliothèque d ...
Artes Novae
core  

Novae in the SuperWASP data base

open access: yes, 2011
We present the results of trawling through the SuperWASP data base for classical and recurrent novae. We report light curves for a nova in eruption, and for classical novae and a recurrent nova in quiescence.
Pollacco, Don   +26 more
core   +1 more source

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