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相关论文: An Extended Grid of Nova Models: II. The Parameter…

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Multicycle nova evolution models have been calculated over the past twenty years, the number being limited by numerical constraints. Here we present a long-term evolution code that enables a continuous calculation through an unlimited…

天体物理学 · 物理学 2008-11-26 N. Epelstain , O. Yaron , A. Kovetz , D. Prialnik

Fluctuations during a prolonged maximum have been observed in several nova eruptions, although it is not clear, and can not be deduced directly from observations, if the phenomenon is an actual physical reaction to some mechanism…

太阳与恒星天体物理 · 物理学 2022-08-16 Yael Hillman

High resolution spectra of postoutburst novae show multiple components of ejected gas that are kinematically distinct. We interpret the observations in terms of episodes of enhanced mass transfer originating from the secondary star that…

太阳与恒星天体物理 · 物理学 2011-08-25 Robert Williams

We show that if the dwarf-nova disc instability model includes the effects of heating by stream impact and tidal torque dissipation in the outer disc, the calculated properties of dwarf-nova outbursts change considerably, and several…

天体物理学 · 物理学 2009-10-31 Valentin Buat-Menard , Jean-Marie Hameury , Jean-Pierre Lasota

Novae are cataclysmic variables driven by accretion of H-rich material onto a white-dwarf (WD) star from its low-mass main-sequence binary companion. New time-domain observational capabilities, such as the Palomar Transient Factory and…

太阳与恒星天体物理 · 物理学 2015-06-11 Pavel A. Denissenkov , Falk Herwig , Lars Bildsten , Bill Paxton

EX Draconis is an eclipsing dwarf nova that shows outbursts with moderate amplitude ($\simeq 2$ mag) and a recurrence timescale of $\simeq 20$-30 d. Dwarf novae outbursts are explained in terms of either a thermal-viscous instability in the…

太阳与恒星天体物理 · 物理学 2024-11-05 Wagner Schlindwein , Raymundo Baptista

The observed properties of novae before and after eruption are discussed. The distribution of orbital periods of novae shows a concentration near 3.2 h, which resembles that of magnetic cataclysmic variables, and there is some evidence that…

天体物理学 · 物理学 2009-11-07 Brian Warner

In this paper, we revisit the problem of the determination of the frequency of occurrence of galactic nova outbursts which involve an oxygen-neon (ONe) white dwarf. The improvement with respect to previous work on the subject derives from…

天体物理学 · 物理学 2011-05-23 P. Gil-Pons , E. Garcia-Berro , J. Jose , M. Hernanz , J. W. Truran

The Outburst Catalogue contains a wide variety of observational properties for 722 dwarf nova-type (DN) cataclysmic variables (CVs) and 309 CVs of other types from the Catalina Real-time Transient Survey. In particular, it includes the…

We present time-dependent nova outburst models with optically thick winds for a 1.2 and 1.35 $M_\odot$ white dwarfs (WDs) with a mass accretion rate of $5 \times 10^{-9}~M_\odot$ yr$^{-1}$ and for a 1.3 $M_\odot$ WD with $2 \times…

太阳与恒星天体物理 · 物理学 2024-04-18 Mariko Kato , Hideyuki Saio , Izumi Hachisu

Multidimensional reactive flow models of accreted hydrogen rich envelopes on top of degenerate cold white dwarfs are very effective tools for the study of critical, non spherically symmetric, behaviors during the early stages of nova…

天体物理学 · 物理学 2009-11-10 S. Ami Glasner , Eli Livne , James W. Truran

The peak luminosities and rates of decline for a large sample of novae recently published by Clark et al. have been analyzed using the Yaron et al. nova models to estimate fundamental properties of the M31 nova population. The apparent…

太阳与恒星天体物理 · 物理学 2026-01-19 Allen W. Shafter , Kamil Hornoch

We present a statistical study of all measurable photometric features of a large sample of dwarf novae during their outbursts and superoutbursts. We used all accessible photometric data for all our objects to make the study as complete and…

太阳与恒星天体物理 · 物理学 2016-05-16 Magdalena Otulakowska-Hypka , Arkadiusz Olech , Joseph Patterson

We present computations for the accretion disk limit cycle model in an attempt to explain the empirical relation for dwarf nova outbursts between the peak visual absolute magnitude and orbital period found by Warner. For longer period…

天体物理学 · 物理学 2009-10-30 John K. Cannizzo

The thermal radio emission of novae during outburst enables us to derive fundamental quantities such as the ejected mass, kinetic energy, and density profile of the ejecta. Recent observations with newly-upgraded facilities such as the VLA…

太阳与恒星天体物理 · 物理学 2015-02-18 Tim O'Brien , Michael Rupen , Laura Chomiuk , Valerio Ribeiro , Michael Bode , Jennifer Sokoloski , Patrick Woudt

This study is the direct continuation of the work performed in Hillman et al. (2020) where they used their feedback dominated numerical simulations to model the evolution of four initial models with white dwarf (WD) masses of 0.7 and…

太阳与恒星天体物理 · 物理学 2021-07-07 Yael Hillman

Classical novae are the results of surface thermonuclear explosions of H-rich material accreted by white dwarfs (WDs) from their low-mass main-sequence or red-giant binary companions. Chemical composition analysis of their ejecta shows that…

太阳与恒星天体物理 · 物理学 2012-10-30 Pavel A. Denissenkov , Falk Herwig , Marco Pignatari , James W. Truran

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 ($M_{\rm WD}=0.6$ - 1.38 $M_\odot$) and…

太阳与恒星天体物理 · 物理学 2026-04-17 Izumi Hachisu , Mariko Kato

We propose a modified color-magnitude diagram for novae in outburst, i.e., $(B-V)_0$ versus $(M_V-2.5 \log f_{\rm s})$, where $f_{\rm s}$ is the timescaling factor of a (target) nova against a comparison (template) nova, $(B-V)_0$ is the…

太阳与恒星天体物理 · 物理学 2019-03-06 Izumi Hachisu , Mariko Kato

We present a model for one cycle of a classical nova outburst based on a self-consistent wind mass loss accelerated by the gradient of radiation pressure, i.e., the so-called optically thick winds. Evolution models are calculated by a…

太阳与恒星天体物理 · 物理学 2022-07-27 Mariko Kato , Hideyuki Saio , Izumi Hachisu
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