Clustering of galaxies around gamma-ray burst sight-lines

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F13%3A00205535" target="_blank" >RIV/68407700:21670/13:00205535 - isvavai.cz</a>

Result on the web

<a href="http://www.aanda.org/articles/aa/pdf/2013/04/aa21247-13.pdf" target="_blank" >http://www.aanda.org/articles/aa/pdf/2013/04/aa21247-13.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201321247" target="_blank" >10.1051/0004-6361/201321247</a>

Result language

angličtina

Original language name

Clustering of galaxies around gamma-ray burst sight-lines

Original language description

There is evidence of an overdensity of strong intervening MgII absorption line systems distributed along the lines of sight toward gamma-ray burst (GRB) afterglows relative to quasar sight-lines. If this excess is real, one should also expect an overdensity of field galaxies around GRB sight-lines, as strong MgII tends to trace these sources. In this work, we test this expectation by calculating the two point angular correlation function of galaxies within 120 '' (similar to 470 h(71)(-1) Kpc at < z > similar to 0.4) of GRB afterglows. We compare the gamma-ray burst optical and near-infrared detector (GROND) GRB afterglow sample - one of the largest and most homogeneous samples of GRB fields - with galaxies and active galactic nuclei found in the COSMOS-30 photometric catalog. We find no significant signal of anomalous clustering of galaxies at an estimated median redshift of z similar to 0.3 around GRB sight-lines, down to K-AB < 19.3. This result is contrary to the expectations from

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

—

Volume of the periodical

552

Issue of the periodical within the volume

—

Country of publishing house

DE - GERMANY

Number of pages

8

Pages from-to

—

UT code for WoS article

000317912000142

EID of the result in the Scopus database

—