Results 51 to 60 of about 1,204,542 (190)

Ancient Nova Shells of RX Pup Indicate Evolution of Mass Transfer Rate

The Astrophysical Journal Letters
RX Pup is a symbiotic binary that experienced a nova outburst in the 1970s. Here we report a discovery of a ∼1300 yr old nova shell around the system and a possible detection of a ∼7000 yr old nova shell. Together with the nova shell ejected in the 1970s,
Krystian Iłkiewicz, Joanna Mikołajewska, Michael M. Shara, Jacqueline K. Faherty, Simone Scaringi   +4 more
doaj   +1 more source

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

Universe
Nova eruptions exhibit diverse photometric and spectroscopic properties traditionally classified using empirical light-curve morphology and spectral taxonomy.
Saad Mohammed Alshehri, Nazhatulshima Ahmad   +1 more
doaj   +1 more source

New infrared results for classical novae [PDF]

International Astronomical Union Colloquium, 1990
AbstractRecent infrared studies of classical novae are described. The nucleation and growth of dust in nova ejecta was confirmed by optical/infrared photometry of several novae during the past five years including QU Vul, V842 Cen, V827 Her, and QV Vul.
openaire   +1 more source

Classical novae: Properties between outbursts [PDF]

International Astronomical Union Colloquium, 1990
With the recent publication of Classical Novae, edited by Bode and Evans, there is no need for me to give a list of novae or their overall characteristics. Furthermore, probably the most interesting developments in the past few years in studies of novae during quiescence have been in those areas (magnetic systems, long term brightness variations) which
openaire   +1 more source

Optical Spectroscopy and Temporal Evolution of the Nova V1405 Cas

The Astrophysical Journal
This paper presents the findings from our study of nova V1405 Cas over the first 1051 days after the outburst. The study includes an analysis of the photometric light-curve evolution, along with a detailed spectroscopic analysis.
Gesesew Reta Habtie, Ramkrishna Das, Elias Aydi, Pavol A. Dubovsky   +3 more
doaj   +1 more source

Millinovae: A New Class of Transient Supersoft X-Ray Sources without a Classical Nova Eruption

The Astrophysical Journal Letters
Some accreting binary systems containing a white dwarf (such as classical novae or persistent supersoft sources) are seen to emit low-energy X-rays with temperatures of  ∼ 10 ^6 K and luminosities exceeding 10 ^35 erg s ^−1 .
Przemek Mróz, Krzysztof Król, Hélène Szegedi, Philip Charles, Kim L. Page, Andrzej Udalski, David A. H. Buckley, Gulab Dewangan, Pieter Meintjes, Michał K. Szymański, Igor Soszyński, Paweł Pietrukowicz, Szymon Kozłowski, Radosław Poleski, Jan Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Patryk Iwanek, Marcin Wrona, Mateusz J. Mróz   +20 more
doaj   +1 more source

V2487 Oph 1998: a post nova in an intermediate polar

EPJ Web of Conferences, 2014
V2487 Oph (Nova Oph 1998) is a classical nova that exploded in 1998. XMM-Newton observations performed between 2 and 9 years after the explosion showed emission related to restablished accretion, and indicative of a magnetic white dwarf.
Hernanz Margarita
doaj   +1 more source

Evolutionary Period Changes for 52 Cataclysmic Variables, and the Failure for the Most-fundamental Prediction of the Magnetic Braking Model

The Astrophysical Journal
The evolution of cataclysmic variables (CVs) is driven by period changes ( $\dot{P}$ ), for which the long-venerable consensus is the magnetic braking model (MBM).
Bradley E. Schaefer
doaj   +1 more source

Artes Novae

, 2018
Fondée en mars 2018, Artes Novae est l'association des jeunes chercheur(e)s en archéologie et histoire de l'art du Moyen Âge et de la Renaissance, actifs en Île-de-France.
Artes Novae
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Gamma Rays from Classical Novae [PDF]

, 1997
NASA at the University of Chicago, provided support for a program of theoretical research into the nature of the thermonuclear outbursts of the classical novae and their implications for gamma ray astronomy.

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