839 citations · 6.3k across the 39 of their papers we have counts for
6 papers · 1 filter
Two superluminous supernovae from the early universe discovered by the Supernova Legacy Survey
D. A. Howell, D. Kasen, C. Lidman +14
We present spectra and lightcurves of SNLS 06D4eu and SNLS 07D2bv, two hydrogen-free superluminous supernovae discovered by the Supernova Legacy Survey. At z = 1.588, SNLS 06D4eu i…
Confronting Simulations of Optically Thick Gas in Massive Halos with Observations at z=2-3
Michele Fumagalli, Joseph F. Hennawi, J. Xavier Prochaska +4
Cosmological hydrodynamic simulations predict the physical state of baryons in the circumgalactic medium (CGM), which can be directly tested via quasar absorption line observations…
Constraining Type Ia Supernovae progenitors from three years of SNLS data
F. B. Bianco, D. A. Howell, M. Sullivan +20
While it is generally accepted that Type Ia supernovae are the result of the explosion of a carbon-oxygen White Dwarf accreting mass in a binary system, the details of their genesi…
Absorption line systems in simulated galaxies fed by cold streams
Michele Fumagalli, J. Xavier Prochaska, Daniel Kasen +3
Hydro cosmological simulations reveal that massive galaxies at high redshift are fed by long narrow streams of merging galaxies and a smoother component of cold gas. We post-proces…
Single or Double Degenerate Progenitors? Searching for Shock Emission in the SDSS-II Type Ia Supernovae
Brian T. Hayden, Peter M. Garnavich, Daniel Kasen +10
From the set of nearly 500 spectroscopically confirmed type~Ia supernovae and around 10,000 unconfirmed candidates from SDSS-II, we select a subset of 108 confirmed SNe Ia with wel…
Type II Supernovae: Model Light Curves and Standard Candle Relationships
Daniel Kasen, S. E. Woosley
A survey of Type II supernovae explosion models has been carried out to determine how their light curves and spectra vary with their mass, metallicity, and explosion energy. The pr…