Results 11 to 20 of about 4,667,827 (292)
DISCOVERY OF A NEW PHOTOMETRIC SUB-CLASS OF FAINT AND FAST CLASSICAL NOVAE [PDF]
The Astrophysical Journal, 2010 We present photometric and spectroscopic follow-up of a sample of extragalactic novae discovered by the Palomar 60 inch telescope during a search for “Fast Transients In Nearest Galaxies” (P60-FasTING). Designed as a fast cadence (1 day) and deep (g < 21
M. Kasliwal +5 more
semanticscholar +6 more sources
Discovery of a probable very fast extragalactic nova in a symbiotic binary [PDF]
Astronomy & Astrophysics, 2022 Very fast novae are novae which evolve exceptionally quickly (on timescales of only days). Due to their rapid evolution, very fast novae are challenging to detect and study, especially at early times.
D. Modiano, R. Wijnands
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The Orbital Period Changes for Novae [PDF]
The Astrophysical JournalCataclysmic variables (CVs) are close interacting binaries in which a white dwarf accretes materials from a low-mass main-sequence companion. CVs can experience nova eruptions due to low mass transfer rates.
Wenshi Tang, Xiang-Dong Li, Bo Wang
doaj +2 more sources
What determines the γ-ray luminosities of classical novae? [PDF]
Monthly Notices of the Royal Astronomical SocietyClassical novae in the Milky Way have now been well-established as high-energy GeV γ-ray sources. In novae with main-sequence companions, this emission is believed to result from shocks internal to the nova ejecta, as a later fast wind collides with an
Kirill Sokolovsky +2 more
exaly +2 more sources
Luminous red novae as shock-powered transients [PDF]
Astronomy & AstrophysicsLuminous red novae (LRNe) are a class of optical transients resulting from the mergers of binary stars or common envelope events. The population displays heterogeneous light curves with extended luminosity plateaus and/or secondary peaks, suggested to be
Sneppen Albert +2 more
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Suppression of Shock X-Ray Emission in Novae from Turbulent Mixing with Cool Gas [PDF]
The Astrophysical JournalShock interaction in classical novae occurs when a fast outflow from the white dwarf ≳1000 km s ^−1 collides with a slower, cooler shell of gas released earlier in the outburst.
Brian D. Metzger +2 more
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A Broadband X-Ray Investigation of Fast-spinning Intermediate Polar CTCV J2056–3014 [PDF]
The Astrophysical JournalWe report on XMM-Newton, NuSTAR, and NICER X-ray observations of CTCV J2056–3014, a cataclysmic variable (CV) with one of the fastest-spinning white dwarfs (WDs) at P = 29.6 s.
Ciro Salcedo +7 more
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Light curves and absolute magnitudes of four recent fast LMC novae [PDF]
International Astronomical Union Colloquium, 2004 AbstractThe light curves of four recent fast LMC novae (Nova LMC 1988a, 1992, 1995, 2000) have been analysed to obtain the parameter t2 the time for a two magnitude decline below maximum light. Using the calibration of Della Valle & Livio (1995), values of MV at maximum are obtained.
J. Hearnshaw +3 more
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The Astrophysical JournalRadiative shocks are fundamental in astrophysical phenomena, particularly in novae ejecta, where interactions between fast and slow outflows lead to double-shock structures (DSSs).
Léa Dollerschell +2 more
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Dust and Coronal Lines in the Very Fast Nova V2361 Cygni
Research Notes of the AAS“Very fast” novae, with their high ejection velocities, smaller ejecta masses, high photospheric temperatures, and rapidly changing conditions are generally inhospitable to the formation and survival of dust.
R. Rudy +3 more
semanticscholar +2 more sources