295 citations · 317 across the 5 of their papers we have counts for
4 papers · 1 filter
Can gravitational infall energy lead to the observed velocity dispersion in DLAs?
Alexei O. Razoumov, Michael L. Norman, Jason X. Prochaska +3
The median observed velocity width v_90 of low-ionization species in damped Ly-alpha systems is close to 90 km/s, with approximately 10% of all systems showing v_90 > 210 km/s at z…
A Spitzer Space Telescope Study of SN 2003gd: Still No Direct Evidence that Core-Collapse Supernovae are Major Dust Factories
W. P. S. Meikle, S. Mattila, A. Pastorello +10
We present a new, detailed analysis of late-time mid-infrared (IR) observations of the Type II-P supernova (SN) 2003gd. At about 16 months after the explosion, the mid-IR flux is c…
No supernovae detected in two long-duration Gamma-Ray Bursts
D. Watson, J. P. U. Fynbo, C. C. Thöne +1
There is strong evidence that long duration gamma-ray bursts (GRBs) are produced during the collapse of a massive star. In the standard version of the Collapsar model, a broad-line…
Type Ia supernova diversity: Standardizing the candles
T. M. Davis, J. B. James, B. P. Schmidt +1
Future use of type Ia supernovae for cosmology aims not only to determine the equation of state of dark energy, but also to constrain possible variations in its value. To achieve t…