Universität zu Köln

Horvath, I, Szecsi, D., Hakkila, J., Szabo, A., Racz, I. I., Toth, L., V, Pinter, S. and Bagoly, Z. (2020). The clustering of gamma-ray bursts in the Hercules-Corona Borealis Great Wall: the largest structure in the Universe? Mon. Not. Roy. Astron. Soc., 498 (2). S. 2544 - 2554. OXFORD: OXFORD UNIV PRESS. ISSN 1365-2966

Full text not available from this repository.

Abstract

The Hercules-Corona Borealis Great Wall is a statistically significant clustering of gamma-ray bursts (GRBs) around redshift 2. Motivated by recent theoretical results indicating that a maximal Universal structure size may indeed coincide with its estimated size (2-3 Gpc), we reexamine the question of this Great Wall's existence from both observational and theoretical perspectives. Our statistical analyses confirm the clustering's presence in the most reliable data set currently available, and we present a video showing what this data set looks like in 3D. Cosmological explanations (i.e. having to do with the distribution of gravitating matter) and astrophysical explanations (i.e. having to do with the rate of star formation over cosmic time and space) regarding the origin of such a structure are presented and briefly discussed and the role of observational bias is also discussed at length. This, together with the scientific importance of using GRBs as unique cosmological probes, emphasises the need for future missions such as the THESEUS satellite, which will provide us with unprecedentedly homogeneous data of GRBs with measured redshifts. We conclude from all this that the Hercules-Corona Borealis Great Wall may indeed be the largest structure in the Universe - but to be able to decide conclusively whether it actually exists, we need THESEUS.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Horvath, I UNSPECIFIED UNSPECIFIED UNSPECIFIED Szecsi, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Hakkila, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Szabo, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Racz, I. I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Toth, L., V UNSPECIFIED UNSPECIFIED UNSPECIFIED Pinter, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bagoly, Z. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-316094
DOI:	10.1093/mnras/staa2460
Journal or Publication Title:	Mon. Not. Roy. Astron. Soc.
Volume:	498
Number:	2
Page Range:	S. 2544 - 2554
Date:	2020
Publisher:	OXFORD UNIV PRESS
Place of Publication:	OXFORD
ISSN:	1365-2966
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language SPACE MISSION CONCEPT; ANGULAR-DISTRIBUTION; SKY-DISTRIBUTION; STAR PROGENITORS; COLLAPSAR MODEL; ANISOTROPY; ISOTROPY; SCALE; PERTURBATIONS; CONSTRAINTS Multiple languages Astronomy & Astrophysics Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31609