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Direct analysis of type Ia supernovae spectra.
(2000)
This work describes how to use and modify the highly parameterized spectrum synthesis code (SYNNEW). SYNNEW can be used to derive information directly from type Ia supernovae spectra.
Synthetic spectrum methods for three dimensional supernova models.
(2003)
This dissertation describes some problems associated with synthesizing emergent spectra from three-dimensional supernova envelope models. We confront these problems by developing a three-dimensional implementation of a ...
On the gravitational lensing of type Ia supernovae.
(2006)
In this dissertation we concentrate on some of these effects on the observation of type Ia supernovae.
Radiative transfer and type Ia supernovae spectra analysis in the context of supernovae factory.
(2005)
We showed the spectrum formation in SNeIa around maximum light to be a multi-layered process involving regions from 5000 km per s to 20000 km per s, interacting not only through scattering but also through pure emission. ...
The direct analysis of spectra of type Ia supernovae.
(2000)
By using SYNOW, we show that most of the spectroscopic differences among type Ia supernovae can be explained by the temperature; therefore, the composition of most of the type Ia supernovae is essentially the same. In ...
A radio and x-ray search for intermediate-age supernovae: Tuning into the oldies.
(2001)
Type II supernovae (SNe) are the cataclysmic and very luminous last stage in the evolutionary track of very high mass stars, resulting in the destruction of the star and the ejection of large amounts of material into their ...
Absolute-magnitude distributions and light curves of stripped-envelope supernovae.
(2004)
The absolute visual magnitudes of three Type IIb, 10 Type Ib and 13 Type Ic supernovae (collectively known as stripped-envelope supernovae) are studied by collecting data on the apparent magnitude, distance, and interstellar ...
Abundances of sulfur in the Milky Way Disk from Peimbert Type II planetary nebulae.
(2000)
Sulfur abundance gradients and heavy element ratios for the Milky Way Disk are constructed based upon newly acquired spectrophotometry of Type II planetary nebulae (PN). These spectra extend from 3600--9600 angstroms ...
Constraining the composition and physics of active galactic nuclei with computer modeling.
(2007)
We present analysis from simultaneous FUSE, ASCA, and EUVE observations, as well as a reanalysis of archival HST spectra, from the extreme Narrow-line Seyfert 1 Galaxy RE 1034+39 (KUG 1031+398). RE 1034+39 has an unusually ...
NLTE synthetic spectra and light curves of type Ia supernovae.
(2000)
I have modeled the spectra of Type Ia supernovae with a detailed, non-local thermodynamic equilibrium (NLTE) model atmosphere and radiative transport code, PHOENIX. I have modeled spectra of the normal, Type Ia supernova, ...