2.5k citations
- Tel Aviv UniversityIL388 papers
- Centre National de la Recherche ScientifiqueFR320 papers
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- University of California, Santa CruzUS239 papers
- Weizmann Institute of ScienceIL223 papers
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7 papers · 2 filters
New Evidence for the Cosmological Origin of Gama-Ray Bursts
Ehud Cohen, Tsafrir Kolatt, Tsvi Piran
We compare the burst distribution of the new (2B) BATSE catalogue to a cosmological distribution. We find that the distribution is insensitive to cosmological parameters such as Om…
Wiener Reconstruction of Density, Velocity, and Potential Fields from All-Sky Galaxy Redshift Surveys
Karl Fisher, Ofer Lahav, Yehuda Hoffman +2
We present a new method for recovering the cosmological density, velocity, and potential fields from all-sky redshift catalogues. The method is based on an expansion of the fields…
-Ray Bursts and Neutron Star Mergers
Tsvi Piran
-ray bursts have baffled theorists ever since their accidental discovery at the sixties. We suggest that these bursts originate in merger of neutron star binaries, taking place…
Omega from the skewness of the cosmic velocity divergence
F. Bernardeau, R. Juszkiewicz, A. Dekel +1
We propose a method for measuring the cosmological density parameter from the statistics of the divergence field, , the divergence of peculiar velocity, expr…
Wiener Filtering of the COBE DMR Data
Emory F. Bunn, Karl B. Fisher, Yehuda Hoffman +3
We derive an optimal linear filter to suppress the noise from the COBE DMR sky maps for a given power spectrum. We then apply the filter to the first-year DMR data, after removing…
Gamma-Ray Bursts from Neutron Star Mergers
T. Piran
Binary neutron stars merger (NSM) at cosmological distances is probably the only -ray bursts model based on an independently observed phenomenon which is known to be taking…