Results 61 to 70 of about 81,520 (148)

Symbiotic Stars (Including T Corona Borealis) Are Not Immediate Progenitors of Normal Type Ia Supernovae

The Astrophysical Journal
A popular solution to the Type Ia supernova (SN Ia) progenitor problem is that the immediate progenitors are symbiotic star systems. This solution requires that the companion star of the exploding white dwarf must be a red giant star with a heavy stellar
Bradley E. Schaefer
doaj   +1 more source

An Extremely Massive White Dwarf of the Symbiotic Classical Nova V407 Cyg as Suggested by the RS Oph and U SCO Models

Open Astronomy, 2012
We have analyzed the optical light curve of the symbiotic star V407 Cyg that underwent a classical nova outburst in 2010 March. Being guided by a supersoft X-ray phase observed during days 20-40 after the nova outburst, we are able to reproduce the light
Hachisu I., Kato M.
doaj   +1 more source

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

, 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  

V1047 Cen: The First Z And-type Outburst Observed in the Classical Nova Binary

The Astrophysical Journal
In 2019, the classical nova V1047 Cen experienced an unusual outburst, the nature of which has not yet been clearly determined. In this paper, we show that the 2019 V1047 Cen outburst is of Z And-type—a type that is characteristic of and has so far been ...
Augustin Skopal, Natalia Shagatova
doaj   +1 more source

Classical novae at radio wavelengths

, 2021
We present radio observations (1-40 GHz) for 36 classical novae, representing data from over five decades compiled from the literature, telescope archives, and our own programs.
Chomiuk, Laura, Mioduszewski, Amy J., Bannister, Keith W., Ribeiro, Valerio A., Aydi, Elias, Filipovic, Miroslav (R7673), Ryder, Stuart D., Kawash, Adam, Filipović, Miroslav D., Linford, Justin D., Ribeiro, Valério A. R. M., Kool, Erik C., Finzell, Tom, Strader, Jay, Sokoloski, Jennifer L., Rupen, Michael P., Urquhart, Ryan, Krauss, Miriam, Metzger, Brian D., Roy, Nirupam, Mukai, Koji, Kool, Erik C.,, Weston, Jennifer, Krauss, Miriam I., Sokolovsky, Kirill, Sokolovsky, Kirill V., Nyamai, Miriam M., Nelson, Thomas J.   +27 more
core   +1 more source

Exploring Mass Transfer Mechanisms in Symbiotic Systems

The Astrophysical Journal
We define two regimes of the parameter space of symbiotic systems based on the dominant mass transfer mechanism. A wide range of white dwarf (WD) mass, donor mass, and donor radius combinations are explored to determine the separation for each parameter ...
Irin Babu Vathachira, Yael Hillman, Amit Kashi   +2 more
doaj   +1 more source

Polarimetric and spectropolarimetric observations with FoReRo2: Instrument overview and standard star monitoring★

Astronomy & Astrophysics
In this paper, we present a description and characterisation of the 2-Channel Focal Reducer Rozhen (FoReRo2), with an emphasis on its polarimetric and spectropolarimetric observation modes.
Nikolov Yanko, Borisov Galin, Bagnulo Stefano, Nikolov Plamen, Bogdanovski Rumen, Bonev Tanyu   +5 more
doaj   +1 more source

The First Hours and Days of the 2021 Explosion of the Recurrent Symbiotic Nova RS Ophiuchii

The Astrophysical Journal
The accretion of matter onto a massive white dwarf (WD) can lead to repeated nuclear explosions on its surface over a timescale of years to decades. The seventh explosion of the recurrent symbiotic nova RS Ophiuchi (RS Oph) was recorded on 2021 August 8.
Augustin Skopal, Martin Vrašťák, Francois Teyssier, Mitsugu Fujii, Sergei Shugarov, Miroslav Šlechta, Marek Wolf   +6 more
doaj   +1 more source

Evolution of the symbiotic nova RX Puppis [PDF]

, 2019
We present and discuss a hundred year history of activity of the hot component of RX Pup based on optical photometry and spectroscopy. The outburst evolution of RX Pup resembles that of other symbiotic novae whereas at quiescence the hot component shows ...
García, Lía Guillermina, Mikołajewska, Joana, Ferrer, Osvaldo Eduardo, Brandi, Estela, Quiroga, Claudio Martín, Anupama, C. G.   +5 more
core  

A discussion on the classification and evolution of symbiotic stars

, 1990
A H-R diagram is drawn from the bolometric luminosities and effective temperatures of 24 symbiotic stars and compared with theoretical evolutionary tracks of Population I metal-rich stars.
SEAL, P, Seal, Parag
core   +1 more source