163 citations · 1.7k across the 23 of their papers we have counts for
23 papers
Catching Element Formation In The Act
Chris L. Fryer, Frank Timmes, Aimee L. Hungerford +216
Gamma-ray astronomy explores the most energetic photons in nature to address some of the most pressing puzzles in contemporary astrophysics. It encompasses a wide range of objects…
Monte-Carlo methods for NLTE spectral synthesis of supernovae
M. Ergon, C. Fransson, A. Jerkstrand +3
We present JEKYLL, a new code for modelling of supernova (SN) spectra and lightcurves based on Monte-Carlo (MC) techniques for the radiative transfer. The code assumes spherical sy…
No trace of a single-degenerate companion in late spectra of SNe 2011fe and 2014J
P. Lundqvist, A. Nyholm, F. Taddia +9
Left-over, ablated material from a possible non-degenerate companion can reveal itself after about one year in spectra of Type Ia SNe (SNe Ia). We have searched for such material i…
Hydrogen and helium in the spectra of Type Ia supernovae
Peter Lundqvist, Seppo Mattila, Jesper Sollerman +6
We present predictions for hydrogen and helium emission line luminosities from circumstellar matter around Type Ia supernovae (SNe Ia) using time dependent photoionization modeling…
Evidence for Type Ia Supernova Diversity from Ultraviolet Observations with the Hubble Space Telescope
Xiaofeng Wang, Lifan Wang, Alexei V. Filippenko +93
We present ultraviolet (UV) spectroscopy and photometry of four Type Ia supernovae (SNe 2004dt, 2004ef, 2005M, and 2005cf) obtained with the UV prism of the Advanced Camera for Sur…
X-ray illumination of the ejecta of Supernova 1987A
J. Larsson, C. Fransson, G. Östlin +25
We present the late-time optical light curve of the ejecta of SN 1987A measured from HST imaging observations spanning the past 17 years. We find that the flux from the ejecta decl…