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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We test for reliability any signatures of field galaxies clustering in theGRB 021004 line of sight. The first signature is the GRB 021004 fieldphotometric redshifts distribution based on the 6-m telescope of the SpecialAstrophysical Observatory of the Russian Academy of Sciences observations witha peak near z = 0.56 estimated from multicolor photometry in the GRB direction.The second signature is the Mg II 2796, 2803AA absorption doublet at z = 0.56in VLT/UVES spectra obtained for the GRB 021004 afterglow. The third signatureis the galaxy clustering in a larger (of about 3 sq.deg.) area around GRB021004 with an effective peak near z = 0.56 for both the spectral andphotometric redshifts from a few catalogs of clusters based on the SloanDigital Sky Survey (SDSS) and Baryon Oscillation Spectroscopic Survey (BOSS) asa part of SDSS-III. From catalog data the size of the whole inhomogeneity indistribution of the galaxy cluster with the peak near z = 0.56 was alsoestimated as about 6--8 deg. or 140--190 Mpc. A possibility of inhomogeneity (agalaxy cluster) near the GRB 021004 direction can be also confirmed by aninhomogeneity in cosmic microwave background related with the Sunyaev-Zeldovicheffect.

The Excess Density of Field Galaxies near z=0.56 around the Gamma-Ray Burst GRB021004 Position