Search
Now showing items 1-9 of 9
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.
Branch-point structure and energy level calculations of diamagnetic hydrogen using dimensional perturbation theory.
(2000)
This dissertation describes the results of research that covers two distinct areas relevant to the field of physics: atomic theory and applied numerical analysis. In the first phase of this research the avoided crossings ...
Dimensional perturbation theory of the two-electron atom for states with arbitrary angular momentum.
(2000)
Dimensional Perturbation Theory (DPT) has been applied to many systems including the hydrogen atom, hydrogen atom in a magnetic field, H+2 molecule and the helium atom. Only S-wave states, and interdimensionally degenerate ...
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 ...
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 ...
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, ...
Electrification and lightning in simulated supercell and non-supercell thunderstorms.
(2000)
Three parameterizations of a noninductive graupel-ice mechanism and various strengths of inductive graupel-droplet charging were tested. For a given storm type, the charge distribution and lightning produced by the different ...
The Sobolev approximation in a spherical shell expanding with constant radial velocity.
(2000)
A simple model of line radiative transfer in a circumstellar shell surrounding a supernova is presented. An examination of optical depth in an atmosphere with power-law expansion and a single source of opacity highlights ...
Inclusive charged kaon production from B mesons in Upsilon(4S) decays.
(2000)
Using data collected at and below the Upsilon(4S) resonance with the CLEO II Detector at the Cornell Electron Storage Ring (CESR), we have investigated the inclusive production of charged kaons, in the decays of B mesons. ...