scholarly journals Revealing the High-Redshift Star Formation Rate with Gamma-Ray Bursts

2008 ◽  
Vol 683 (1) ◽  
pp. L5-L8 ◽  
Author(s):  
Hasan Yüksel ◽  
Matthew D. Kistler ◽  
John F. Beacom ◽  
Andrew M. Hopkins
Keyword(s):  
Star Formation ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
High Redshift ◽  
Formation Rate ◽  
Gamma Ray Bursts

scholarly journals Spatial distribution of the gamma-ray bursts at very high redshift

2017 ◽  
Vol 12 (S333) ◽  
pp. 203-206
Author(s):  
Attila Mészáros
Keyword(s):  
Spatial Distribution ◽  
Star Formation ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
High Redshift ◽  
Formation Rate ◽  
Gamma Ray Bursts ◽  
Cosmological Principle ◽  
Statistical Studies ◽  
Very High

AbstractThe author - with his collaborators - already in years 1995-96 have shown - purely from the analyses of the observations - that the gamma-ray bursts (GRBs) can be till redshift 20. Since that time several other statistical studies of the spatial distribution of GRBs were provided. Remarkable conclusions concerning the star-formation rate and the validity of the cosmological principle were obtained about the regions of the cosmic dawn. In this contribution these efforts are surveyed.

Gamma-Ray Bursts and the Cosmic Star Formation Rate

1998 ◽  
Vol 506 (2) ◽  
pp. L81-L84 ◽  
Author(s):  
Mark Krumholz ◽  
S. E. Thorsett ◽  
Fiona A. Harrison
Keyword(s):  
Star Formation ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Gamma Ray Bursts

Gamma-ray bursts in the early Universe

2009 ◽  
Vol 5 (S265) ◽  
pp. 73-74
Author(s):  
Attila Mészáros ◽  
Jakub Řípa ◽  
David Huja
Keyword(s):  
Star Formation ◽  
Early Universe ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
Formation Rate ◽  
Gamma Ray Bursts

AbstractThe long gamma-ray bursts are at high redshifts, and they trace the star-formation rate. Hence, they may well serve as milestones in the early Universe.

scholarly journals Connection between the Star Formation Rate and the Gamma-Ray Bursts

2012 ◽  
Vol 8 (S292) ◽  
pp. 334-334
Author(s):  
Attila Mészáros ◽  
Zsolt Bagoly ◽  
Lajos G. Balázs ◽  
István Horváth
Keyword(s):  
Star Formation ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
Massive Stars ◽  
Formation Rate ◽  
Gamma Ray Bursts

AbstractIt is remarkable that the long gamma-ray bursts, as objects connected with the supernovae - i.e. with the end of the massive stars, trace the star formation rate. This connection is discussed in this contribution. The presentation is in essence a recapitulation of the article Mészáros A. et al. A&A, 2006, 455, 785.

scholarly journals Are LGRBs biased tracers of star formation? Clues from the host galaxies of the Swift/BAT6 complete sample of LGRBs

2015 ◽  
Vol 11 (A29B) ◽  
pp. 249-250
Author(s):  
Susanna D. Vergani ◽  
Keyword(s):  
Star Formation ◽  
Gamma Ray ◽  
Star Formation Rate ◽  
Massive Stars ◽  
Formation Rate ◽  
Gamma Ray Bursts ◽  
Host Galaxies ◽  
Complete Sample ◽  
Rate Versus ◽  
High Metallicity

AbstractLong gamma-ray bursts (LGRBs) are associated to the deaths of massive stars and could thus be used as a potentially powerful tool to trace cosmic star formation. However the conditions needed to produce a LGRBs may introduce a bias in the LGRB rate versus star formation rate (SFR) relation (called LGRB efficiency hereafter).We have undertaken a study of the properties of the host galaxies of the BAT6 complete sample of LGRB to improve our knowledge on the LGRB efficiency, its redshift evolution, and the factor affecting it. This is the base to properly use LGRBs as SFR tracers.We show that at z < 1 LGRBs are not direct SFR tracers because they tend to avoid high-metallicity galaxies. The use of the BAT6 complete sample keeps this result from being affected by possible biases that could have influenced past results based on incomplete samples. The preference for low (but not extremely low) metallicities can be a consequence of the particular conditions needed for the progenitor star to produce a GRB.

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