Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- AlbaNovaSE3.4k papers
- KTH Royal Institute of TechnologySE3.1k papers
- Centre National de la Recherche ScientifiqueFR2.9k papers
- Uppsala UniversitySE2k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.8k papers
- University of CopenhagenDK1.8k papers
- Lawrence Berkeley National LaboratoryUS1.8k papers
- University of GenevaCH1.7k papers
- University of OxfordGB1.7k papers
- Aix-Marseille UniversitéFR1.7k papers
- University of California, BerkeleyUS1.7k papers
11 papers · 2 filters
The Dyer-Roeder distance-redshift relation in inhomogeneous universes
E. Mortsell
Using Monte-Carlo methods, we determine the best-fit value of the homogeneity parameter alpha in the Dyer-Roeder distance-redshift relation for a variety of redshifts, inhomogeneit…
The cosmic ray positron excess and neutralino dark matter
Edward A. Baltz, Joakim Edsjo, Katherine Freese +1
Using a new instrument, the HEAT collaboration has confirmed the excess of cosmic ray positrons that they first detected in 1994. We explore the possibility that this excess is due…
Search for Supernova Neutrino-Bursts with the AMANDA Detector
AMANDA collaboration
The core collapse of a massive star in the Milky Way will produce a neutrino burst, intense enough to be detected by existing underground detectors. The AMANDA neutrino telescope l…
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…
Spectral Gamma-ray Signatures of Cosmological Dark Matter Annihilation
Lars Bergstrom, Joakim Edsjo, Piero Ullio
We propose a new signature for weakly interacting massive particle (WIMP) dark matter, a spectral feature in the diffuse extragalactic gamma-ray radiation. This feature, a sudden d…
Timescale Stretch Parameterization of Type Ia Supernova B-band Light Curves
G. Goldhaber, D. E. Groom, A. Kim +24
R-band intensity measurements along the light curve of Type Ia supernovae discovered by the Supernova Cosmology Project (SCP) are fitted in brightness to templates allowing a free…
Nickel Mixing in the Outer Layers of SN 1987A
Robert C. Mitchell, E. Baron, David Branch +4
Supernova 1987A remains the most well-observed and well-studied supernova to date. Observations produced excellent broad-band photometric and spectroscopic coverage over a wide wav…
Supernovae and the Nature of the Dark Energy
M. Goliath, R. Amanullah, P. Astier +2
The use of Type Ia supernovae as calibrated standard candles is one of the most powerful tools to study the expansion history of the universe and thereby its energy components. Whi…
Determining the fraction of compact objects in the Universe using supernova observations
E. Moertsell, A. Goobar, L. Bergstrom
We investigate the possibility to determine the fraction of compact objects in the Universe by studying gravitational lensing effects on Type Ia supernova observations. Using simul…
X-ray, Optical, and Radio Observations of the Type II Supernovae 1999em and 1998S
D. Pooley, W. H. G. Lewin, D. W. Fox +12
Observations of the Type II-P (plateau) Supernova (SN) 1999em and Type IIn (narrow emission line) SN 1998S have enabled estimation of the profile of the SN ejecta, the structure of…
QSO environments at intermediate redshifts
M. Wold, M. Lacy, P. B. Lilje +1
We have made a survey of quasar environments at 0.5 < z < 0.8, using a sample of both radio-loud and radio-quiet quasars matched in B-band luminosity. Our observations include imag…