Metallicity of Gamma-Ray Burst Progenitors: Connection between Star Formation and Gamma-Ray Burst Production

2010 ◽  
Author(s):  
Y. Niino ◽  
J.-H. Choi ◽  
M. A. R. Kobayashi ◽  
K. Nagamine ◽  
T. Totani ◽  
...  
2010 ◽  
Vol 409 (1) ◽  
pp. L74-L78 ◽  
Author(s):  
Elizabeth R. Stanway ◽  
Luke J. M. Davies ◽  
Andrew J. Levan

2019 ◽  
Vol 488 (4) ◽  
pp. 5823-5832 ◽  
Author(s):  
Nicole M Lloyd-Ronning ◽  
Aycin Aykutalp ◽  
Jarrett L Johnson

ABSTRACT We examine the relationship between a number of long gamma-ray burst (lGRB) properties (isotropic emitted energy, luminosity, intrinsic duration, jet opening angle) and redshift. We find that even when accounting for conservative detector flux limits, there appears to be a significant correlation between isotropic equivalent energy and redshift, suggesting cosmological evolution of the lGRB progenitor. Analysing a sub-sample of lGRBs with jet opening angle estimates, we find the beaming-corrected lGRB emitted energy does not correlate with redshift, but jet opening angle does. Additionally, we find a statistically significant anticorrelation between the intrinsic prompt duration and redshift, even when accounting for potential selection effects. We also find that, for a given redshift, isotropic energy is positively correlated with intrinsic prompt duration. None of these GRB properties appear to be correlated with galactic offset. From our selection-effect-corrected redshift distribution, we estimate a co-moving rate density for lGRBs, and compare this to the global cosmic star formation rate (SFR). We find the lGRB rate mildly exceeds the global star formation rate between a redshift of 3 and 5, and declines rapidly at redshifts above this (although we cannot constrain the lGRB rate above a redshift of about 6 due to sample incompleteness). We find the lGRB rate diverges significantly from the SFR at lower redshifts. We discuss both the correlations and lGRB rate density in terms of various lGRB progenitor models and their apparent preference for low-metallicity environments.


2003 ◽  
Vol 588 (1) ◽  
pp. 99-112 ◽  
Author(s):  
E. Berger ◽  
L. L. Cowie ◽  
S. R. Kulkarni ◽  
D. A. Frail ◽  
H. Aussel ◽  
...  

2015 ◽  
Vol 800 (1) ◽  
pp. 31 ◽  
Author(s):  
M. G. Dainotti ◽  
R. Del Vecchio ◽  
N. Shigehiro ◽  
S. Capozziello

Author(s):  
J. P. U. FYNBO ◽  
J. HJORTH ◽  
D. MALESANI ◽  
J. SOLLERMAN ◽  
D. WATSON ◽  
...  

2015 ◽  
Vol 11 (A29B) ◽  
pp. 229-230
Author(s):  
M. J. Michałowski ◽  
G. Gentile ◽  
J. Hjorth ◽  
M. R. Krumholz ◽  
N. R. Tanvir ◽  
...  

AbstractGamma-ray burst host galaxies are deficient in molecular gas, and show anomalous metal-poor regions close to GRB positions. Using recent Australia Telescope Compact Array (ATCA) Hi observations we show that they have substantial atomic gas reservoirs. This suggests that star formation in these galaxies may be fuelled by recent inflow of metal-poor atomic gas. While this process is debated, it can happen in low-metallicity gas near the onset of star formation because gas cooling (necessary for star formation) is faster than the Hi-to-H2 conversion.


2005 ◽  
Vol 362 (1) ◽  
pp. 245-251 ◽  
Author(s):  
P. Jakobsson ◽  
G. Björnsson ◽  
J. P. U. Fynbo ◽  
G. Jóhannesson ◽  
J. Hjorth ◽  
...  

2015 ◽  
Vol 447 (3) ◽  
pp. 2575-2587 ◽  
Author(s):  
Elisabeth Vangioni ◽  
Keith A. Olive ◽  
Tanner Prestegard ◽  
Joseph Silk ◽  
Patrick Petitjean ◽  
...  

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