56 citations · 173 across the 7 of their papers we have counts for
7 papers · 1 filter
Lensing magnification of supernovae in the GOODS-fields
Jakob Jonsson, Tomas Dahlen, Ariel Goobar +3
Gravitational lensing of high-redshift supernovae is potentially an important source of uncertainty when deriving cosmological parameters from the measured brightness of Type Ia su…
Corrections for gravitational lensing of supernovae: better than average?
Christofer Gunnarsson, Tomas Dahlen, Ariel Goobar +2
We investigate the possibility of correcting for the magnification due to gravitational lensing of standard candle sources, such as Type Ia supernovae. Our method uses the observed…
Massive galaxy clusters as gravitational telescopes for distant supernovae
Christofer Gunnarsson, Ariel Goobar
We investigate the potential of using massive clusters as gravitational telescopes for searches and studies of supernovae of Type Ia and Type II in optical and near-infrared bands…
Gravitational Lensing of the Most Distant Known Supernova, SN1997ff
Christofer Gunnarsson
We investigate the effect of gravitational lensing on the farthest known supernova, SN1997ff. The SN was found at z~1.7 in the Hubble Deep Field North and is most likely of Type Ia…
Gravitational lensing of the farthest known supernova SN1997ff
Edvard Moertsell, Christofer Gunnarsson, Ariel Goobar
We investigate the effects of gravitational lensing due to intervening galaxies on the recently discovered Type Ia supernova at z=1.7, SN1997ff, in the Hubble Deep Field North. We…
Neutralino Gamma-ray Signals from Accreting Halo Dark Matter
Lars Bergstrom, Joakim Edsjo, Christofer Gunnarsson
There is mounting evidence that a self-consistent model for particle cold dark matter has to take into consideration spatial inhomogeneities on sub-galactic scales seen, for instan…