X-rays from the explosion site: Fifteen years of light curves of SN 1993J (2009)
Chandra, Poonam, Dwarkadas, Vikram V., Ray, Alak, Immler, Stefan, Pooley, David
We present a comprehensive analysis of the X-ray light curves of SN 1993J in a nearby galaxy M81. This is the only supernova other than SN 1987A, which is so extensively followed in the X-ray bands....
Turbulence in Wind-Blown Bubbles around Massive Stars (2008)
Winds from massive stars (> 8 solar masses) result in the formation of wind-blown "bubbles" around these stars. In this paper we study, via two-dimensional numerical hydrodynamic simulations, the...
The Evolution of Supernovae in Circumstellar Wind Bubbles II: Case of a Wolf-Rayet star (2007)
(Abridged) Mass-loss from massive stars leads to the formation of circumstellar wind-blown bubbles surrounding the star, bordered by a dense shell. When the star ends its life in a supernova (SN)...
SN Shock Evolution in the Circumstellar Medium surrounding SN 1987A (2007)
We study the structure of the circumstellar medium surrounding SN 1987A in the equatorial plane. Furthermore, we study the evolution of the SN shock within this medium during the first 25 years, and...
Supernova Explosions in Winds and Bubbles, with Applications to SN 1987A (2007)
Massive stars can signi cantly modify the surrounding medium during their lifetime. When the stars explode as supernovae, the resulting shock wave expands within this modi ed medium and not within...
Supernova Explosions in Winds and Bubbles, with Applications to SN 1987A (2006)
Massive stars can significantly modify the surrounding medium during their lifetime. When the stars explode as supernovae, the resulting shock wave expands within this modified medium and not within...
Winds From Massive Stars, And Implications for Supernovae and Gamma-Ray Bursts (2006)
We review the effects of winds from massive O and B stars on the surrounding medium over the various stages of stellar evolution. Furthermore we discuss some of the implications for SNe and GRB...
Optical Emission Band Morphologies of the Red Rectangle (2006)
Vijh, Uma P., Witt, Adolf N., York, Donald G., Dwarkadas, Vikram V., Woodgate, Bruce E., Palunas, Povilas
We present narrow-band images of the Red Rectangle (RR) nebula which reveal the distinct morphologies of this intriguing nebula in different optical emission bands. The morphology of the RR nebula in...
Hydrodynamics of Supernova Evolution in the Winds of Massive Stars (2006)
Core-Collapse supernovae arise from stars greater than 8 $\msun$. These stars lose a considerable amount of mass during their lifetime, which accumulates around the star forming wind-blown bubbles....
Mass loss from massive stars ($\ga 8 \msun$) can result in the formation of circumstellar wind blown cavities surrounding the star, bordered by a thin, dense, cold shell. When the star explodes as a...
Simulated Radio Images and Light Curves of SN 1993J (2004)
Dwarkadas, Vikram V., Mioduszewski, Amy J., Ball, Lewis T.
We present calculations of the radio images and light curves from supernovae, based on high-resolution numerical simulations of the hydrodynamics and radiation transfer in a spherically symmetric...
Stellar Rotation and the Formation of Asymmetric Nebulae (2004)
We illustrate how rotation of the central star can give rise to latitudinal variations in the wind properties from the star. Interaction of these winds with the surrounding medium can produce...
Simulated Radio Images and Light Curves of Young Supernovae (2001)
Mioduszewski, Amy J., Dwarkadas, Vikram V., Ball, Lewis
We present calculations of the radio emission from supernovae based on high-resolution simulations of the hydrodynamics and radiation transfer, using simple energy density relations which link the...
The Interaction of Type Ia Supernovae with their Surroundings: The Exponential profile in 2D (2000)
The evolution of Type Ia supernovae in the surrounding medium is studied using 2-dimensional numerical hydrodynamic simulations. The ejecta are assumed to be described by an exponential density...