6 papers
Quantitative Spectroscopy of Supernovae for Dark Energy Studies
E. Baron, David Branch, David Jeffery +6
Detailed quantitative spectroscopy of Type Ia supernovae (SNe~Ia) provides crucial information needed to minimize systematic effects in both ongoing SNe Ia observational programs s…
Early Spectra of Supernovae
E. Baron, Peter Nugent, David Branch +1
We briefly describe the current version of the PHOENIX code. We then present some results on the modeling of Type II supernovae and show that fits to observations can be obtained,…
Photon vs Energy Magnitude Systems and the Measurement of the Cosmological Parameters
Alex Kim, Peter Nugent
The relative brightnesses of standard candles have long been known to be potentially powerful probes of distance. The distance modulus, the difference between observed and absolute…
Coping with Type Ia Supernova "Evolution" When Probing the Nature of the Dark Energy
David Branch, Saul Perlmutter, E. Baron +1
Observations of high-redshift Type Ia supernovae (SNe Ia) have provided strong evidence that the dark energy is real, and making further accurate observations of high-redshift SNe…
NLTE Effects in Modeling of Supernovae near Maximum Light
E. Baron, P. H. Hauschildt, P. Nugent +1
Supernovae, with their diversity of compositions, velocities, envelope masses, and interactions are good testing grounds for probing the importance of NLTE in expanding atmospheres…
Type Ia Supernovae as Extragalactic Distance Indicators
David Branch, Peter Nugent, Adam Fisher
Because Type Ia supernovae (SNe Ia) are not perfect standard candles, it is important to be able to use distance-independent observables (DIOs) to define subsets of SNe Ia that are…