Results 21 to 30 of about 823 (184)
DISTRIBUTED FLAMES IN TYPE Ia SUPERNOVAE [PDF]
The Astrophysical Journal, 2010 In the distributed burning regime, turbulence disrupts the internal structure of the flame, and so the idea of laminar burning propagated by conduction is no longer valid. The nature of the burning depends on the turbulent Damkohler number (Da), which steadily declines from much greater than one to less that one as the density decreases to a few 10^6 g/
Aspden, Andrew, Bell, J., Woosley, S.
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BURNING THERMALS IN TYPE Ia SUPERNOVAE [PDF]
The Astrophysical Journal, 2011 We develop a one-dimensional theoretical model for thermals burning in Type Ia supernovae based on the entrainment assumption of Morton, Taylor and Turner. Extensions of the standard model are required to account for the burning and for the expansion of the thermal due to changes in the background stratification found in the full star.
Aspden, Andrew +3 more
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Type Ia Supernovae and Cosmology [PDF]
, 2007 Recent progress in modeling type Ia supernovae by means of 3-dimensional hydrodynamic simulations as well as several of the still open questions are addressed in this article. It will be shown that the new models have considerable predictive power which allows us to study observable properties such as light curves and spectra without adjustable non ...
Hillebrandt, W., Röpke, F.
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Dust around Type Ia Supernovae [PDF]
The Astrophysical Journal, 2005 ApJL, in ...
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Modeling Type Ia supernova explosions
Progress in Particle and Nuclear Physics, 2011 Abstract Despite their astrophysical significance–as a major contributor to cosmic nucleosynthesis and as distance indicators in observational cosmology–Type Ia supernovae lack theoretical explanation. Not only is the explosion mechanism complex due to the interaction of (potentially turbulent) hydrodynamics and nuclear reactions, but even the ...
Ropke, F. K. +8 more
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The Progenitors of Type Ia Supernovae [PDF]
The Astrophysical Journal, 2008 Type Ia supernovae (SNe Ia) occur in both old, passive galaxies and active, star-forming galaxies. This fact, coupled with the strong dependence of SN Ia rate on star formation rate, suggests that SNe Ia form from stars with a wide range of ages. Here we show that the rate of SN Ia explosions is about 1% of the stellar death rate, independent of star ...
Pritchet, C, Howell, D, Sullivan, M
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The Astrophysical Journal, 2023 We present multiwavelength time-series spectroscopy of SN 2013aa and SN 2017cbv, two Type Ia supernovae (SNe Ia) on the outskirts of the same host galaxy, NGC 5643. This work utilizes new nebular-phase near-infrared (NIR) spectra obtained by the Carnegie
Sahana Kumar +25 more
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DARK MATTER ADMIXED TYPE Ia SUPERNOVAE [PDF]
The Astrophysical Journal, 2015 11 pages, 14 figures, accepted by The Astrophysical Journal.
S.-C. Leung, M.-C. Chu, L.-M. Lin
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A problem with the analysis of type Ia supernovae
Open Astronomy, 2017 Type Ia supernovae have light curves that have widths and magnitudes that can be used for testing cosmologies and they provide one of the few direct measurements of time dilation.
Crawford David F.
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Spectral diversity of Type Ia supernovae [PDF]
Monthly Notices of the Royal Astronomical Society, 2006 8 pages, 8 figures, uses mn2e.cls, accepted for publication by ...
James, J. Berian +3 more
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