English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The cosmological expansion cannot produce the reported correlations of thegamma-ray burst timescale and spectral energy with peak flux if the burst modelreproduces the BATSE 3B peak-flux distribution for a non-evolving burst sourcedensity. Power law luminosity distribution models proportional to L^{-beta}produce acceptables fits to the data for most values of the spectral parameterswhen beta < 1.6. In this model, gamma-ray bursts of a given peak flux have adistribution of redshifts, with a maximum redshift of > 3 for peak fluxes nearthe BATSE threshold, and with an average redshift of < 1 for all values of peakflux. The reported correlations of the burst timescale and the spectral energywith peak flux are systematically 1 standard deviation above the monoluminousmodel and 1.5 to 2 standard deviation above the power-law luminosity model.These results suggest that an intrinsic correlation of burst timescale andspectral energy with luminosity is present.Comment: 38 pages with embedded figures. To appear in ApJ on Sept. 20, 1997.  Minor errors corrected August 16, 199

The Cosmological Signatures and Flux Distribution of Gamma‐Ray Bursts with a Broad Luminosity Distribution