The Interstellar Medium of Gamma‐Ray Burst Host Galaxies. I. Echelle Spectra of Swift GRB Afterglows

2007 ◽  
Vol 168 (2) ◽  
pp. 231-267 ◽  
Author(s):  
J. X. Prochaska ◽  
H.‐W. Chen ◽  
J. S. Bloom ◽  
M. Dessauges‐Zavadsky ◽  
J. M. O’Meara ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Gamma Ray ◽  
Host Galaxies ◽  
Gamma Ray Burst

scholarly journals STATISTICAL PROPERTIES OF GRB AFTERGLOW PARAMETERS AS EVIDENCE OF COSMOLOGICAL EVOLUTION OF THEIR HOST GALAXIES

2014 ◽  
Vol 54 (4) ◽  
pp. 259-265
Author(s):  
Gregory Beskin ◽  
Gor Oganesyan ◽  
Giuseppe Greco ◽  
Sergey Karpov
Keyword(s):  
Interstellar Medium ◽  
Gamma Ray ◽  
Formation Rate ◽  
Cosmological Evolution ◽  
Gamma Activity ◽  
Host Galaxies ◽  
Reverse Shock ◽  
Gamma Ray Burst ◽  
Pair Correlations ◽  
Peak Luminosity

The results of a study of 43 peaked R-band light curves of optical counterparts of gamma-ray bursts with known redshifts are presented. The parameters of optical transients were calculated in the comoving frame, and then a search for pair correlations between them was conducted. A statistical analysis showed a strong correlation between the peak luminosity and the redshift both for pure afterglows and for events with residual gamma activity, which cannot be explained as an effect of observational selection.This suggests a cosmological evolution of the parameters of the local interstellar medium around the sources of the gamma-ray burst. In the models of forward and reverse shock waves, a relation between the density of the interstellar medium and the redshift was built for gamma-ray burst afterglows, leading to a power-law dependence of the star-formation rate at regions around GRBs on redshift with a slope of about 6.

scholarly journals Herschelobservations of gamma-ray burst host galaxies: implications for the topology of the dusty interstellar medium

2014 ◽  
Vol 570 ◽  
pp. A52 ◽  
Author(s):  
P. Schady ◽  
S. Savaglio ◽  
T. Müller ◽  
T. Krühler ◽  
T. Dwelly ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Gamma Ray ◽  
Host Galaxies ◽  
Gamma Ray Burst

scholarly journals Statistical Properties of Gamma-Ray Burst Host Galaxies

2012 ◽  
Vol 8 (S292) ◽  
pp. 190-190
Author(s):  
J. M. Chen ◽  
L. W. Jia ◽  
E. W. Liang
Keyword(s):  
Gamma Ray ◽  
Formation Rate ◽  
Neutral Hydrogen ◽  
Statistical Properties ◽  
Host Galaxy ◽  
Host Galaxies ◽  
Gamma Ray Burst ◽  
Star Forming ◽  
Hydrogen Column Density ◽  
Linear Fit

AbstractGRBs are the most luminous events in the Universe. They are detectable from local to high-z universe and may serve as probes for high-z galaxies (e.g., Savaglio et al. 2009; Kewley & Dopita 2002). We compile the observations for 61 GRB host galaxies from literature. Their redshifts range from 0.0085 to 6.295. We present the statistical properties of the GRB host galaxies, including the stellar mass (M*), star-forming rate (SFR), metallicity (Z), extinction (AV), and neutral hydrogen column density (NH). We explore possible correlations among the properties of gamma-ray burst host galaxies and their cosmic evolution with observations of 61 GRB host galaxies. Our results are shown in Figure 1. A clear Z-M* relation is found in our sample, which is Z ~ M0.4. The host galaxies of local GRBs with detection of accompanied supernovae also share the same relation with high-z GRB host galaxies. A trend that a more massive host galaxy tends to have a higher star-formation rate is found. The best linear fit gives a tentative relation, i.e, SFR ~ M0.75. No any correlation is found between AV and NH. A GRB host galaxy at a higher redshift also tends to have a higher SFR. Even in the same redshift, the SFR may vary over three orders of magnitude. The metallicity of the GRB host galaxies is statistically higher than that of the QSO DLAs. The full version of our results please refer to Chen et al. (2012).

scholarly journals Low radio-derived star formation rates in z < 0.5 gamma-ray burst host galaxies

2010 ◽  
Vol 409 (1) ◽  
pp. L74-L78 ◽  
Author(s):  
Elizabeth R. Stanway ◽  
Luke J. M. Davies ◽  
Andrew J. Levan
Keyword(s):  
Star Formation ◽  
Gamma Ray ◽  
Host Galaxies ◽  
Gamma Ray Burst

scholarly journals Gamma-Ray Burst Host Galaxies Have “Normal” Luminosities

2000 ◽  
Vol 533 (1) ◽  
pp. L21-L24 ◽  
Author(s):  
Bradley E. Schaefer
Keyword(s):  
Gamma Ray ◽  
Host Galaxies ◽  
Gamma Ray Burst
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