Results 111 to 120 of about 82,748 (221)

Light Curve Morphology and Spectral Evolution in Classical and Recurrent Novae: Toward a Unified Physical Framework

open access: yesUniverse
Nova eruptions exhibit diverse photometric and spectroscopic properties traditionally classified using empirical light-curve morphology and spectral taxonomy.
Saad Mohammed Alshehri   +1 more
doaj   +1 more source

The Dwarf Nova PQ Andromedae

open access: yesPublications of the Astronomical Society of the Pacific, 2005
We report a photometric study of the WZ Sagittae-type dwarf nova PQ Andromedae. The light curve shows strong (0.05 mag full amplitude) signals with periods of 1263(1) and 634(1) s, and a likely double-humped signal with P=80.6(2) min. We interpret the first two as nonradial pulsation periods of the underlying white dwarf, and the last as the orbital ...
Patterson, Joseph   +4 more
openaire   +2 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  

Neon Novae, Recurrent Novae, and Type I Supernovae [PDF]

open access: yes, 1989
Over the past few years, we have been investigating the effects of accretion onto massive white dwarfs and its implications for their growth in mass toward the Chandrasekhar limit, in attempts to identify a possible relationship between SN I and novae ...
Technion-Israel Institute of Technology, Haifa (Israel)   +5 more
core  

The Nova Synthetic Data Base: A Principal Component/AI Analysis of Novae Synoptic Spectra

open access: yesThe Astrophysical Journal Supplement Series
The Nova Synthetic Data Base (NSDB) is presented as the first publicly available database of synthetic spectra for classical nova shells, spanning an unprecedented range of physical parameters (e.g., ejecta mass, chemical composition, temperature, and ...
Bruno C. Santos   +2 more
doaj   +1 more source

Determination of the physical parameters of the eclipsing dwarf nova system IP Peg

open access: yes, 1998
IP Peg is a member of a family of star systems known as cataclysmic variable stars, CVs. CVs are star systems in which a red dwarf star orbits a white dwarf and mass transfer is taking place from the red dwarf to the white dwarf.
Bryant, Jeffrey M.
core  

A Photoionization Model for the Infrared Coronal Line Emission in the Classical Nova V1716 Scorpii

open access: yesThe Astrophysical Journal
A near-infrared spectrum of nova V1716 Scorpii (PNV J17224490-4137160), a recent bright ( ${V}_{\max }=7.3$ mag), Fermi-LAT detected γ -ray source, was modeled using the photoionization code CLOUDY.
C. E. Woodward   +4 more
doaj   +1 more source

The behaviour of quiescent accretion discs in dwarf novae

open access: yes
We propose a simple explanation for the constant mean brightness observed between outbursts in dwarf novae. Secular changes in the total energy dissipation rate of the accretion disc brought about by variations in surface density, temperature and disc ...
Wynn, G. A.   +2 more
core   +1 more source

A radio-detected type Ia supernova with helium-rich circumstellar material. [PDF]

open access: yesNature, 2023
Kool EC   +36 more
europepmc   +1 more source

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  

Home - About - Disclaimer - Privacy