The first observation of an optical counterpart to a short gamma‐ray burst from the Czech Republic: GRB 160927A

2019 ◽  
Vol 340 (7) ◽  
pp. 629-632
Author(s):  
Šimon Trčka ◽  
Martin Jelínek ◽  
Jan Štrobl
Keyword(s):  
Czech Republic ◽  
Gamma Ray ◽  
Optical Counterpart ◽  
The Czech Republic ◽  
Gamma Ray Burst

scholarly journals A comparison between short GRB afterglows and kilonova AT2017gfo: shedding light on kilonovae properties

2020 ◽  
Vol 493 (3) ◽  
pp. 3379-3397 ◽  
Author(s):  
A Rossi ◽  
G Stratta ◽  
E Maiorano ◽  
D Spighi ◽  
N Masetti ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Gamma Ray ◽  
Light Curves ◽  
Optical Counterpart ◽  
Wave Source ◽  
Gamma Ray Burst ◽  
Nir Light ◽  
First Time ◽  
Short Grbs

ABSTRACT Multimessenger astronomy received a great boost following the discovery of kilonova (KN) AT2017gfo, the optical counterpart of the gravitational wave source GW170817 associated with the short gamma-ray burst GRB 170817A. AT2017gfo was the first KN that could be extensively monitored in time using both photometry and spectroscopy. Previously, only few candidates have been observed against the glare of short GRB afterglows. In this work, we aim to search the fingerprints of AT2017gfo-like KN emissions in the optical/NIR light curves of 39 short GRBs with known redshift. For the first time, our results allow us to study separately the range of luminosity of the blue and red components of AT2017gfo-like kilonovae in short GRBs. In particular, the red component is similar in luminosity to AT2017gfo, while the blue KN can be more than 10 times brighter. Finally, we exclude a KN as luminous as AT2017gfo in GRBs 050509B and 061201.

scholarly journals 2900 Square Degree Search for the Optical Counterpart of Short Gamma-Ray Burst GRB 180523B with the Zwicky Transient Facility

2019 ◽  
Vol 131 (998) ◽  
pp. 048001 ◽  
Author(s):  
Michael W. Coughlin ◽  
Tomás Ahumada ◽  
S. Bradley Cenko ◽  
Virginia Cunningham ◽  
Shaon Ghosh ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Optical Counterpart ◽  
Gamma Ray Burst

scholarly journals Gamma ray burst optical counterpart search experiment (GROCSE)

1996 ◽  
Author(s):  
Hye-Sook Park ◽  
Elden Ables ◽  
Richard M. Bionta ◽  
Linda Ott ◽  
Eric Parker ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Optical Counterpart ◽  
Gamma Ray Burst ◽  
Search Experiment

scholarly journals Natural radioactivity of rocks from the historic Jeroným Mine in the Czech Republic

2021 ◽  
Vol 80 (18) ◽  
Author(s):  
Dariusz Malczewski ◽  
Maria Dziurowicz ◽  
Zdenek Kalab ◽  
Marketa Rösnerová
Keyword(s):  
Czech Republic ◽  
Natural Radioactivity ◽  
Building Materials ◽  
Gamma Ray ◽  
Hazard Index ◽  
Metal Extraction ◽  
Radiation Hazard ◽  
Gamma Ray Spectrometry ◽  
The Czech Republic ◽  
Activity Concentrations

AbstractThis study reports the natural radioactivity of characteristic rocks found in the historic Jeroným Mine of the Czech Republic as measured under the laboratory conditions. The rocks analyzed included granites and schists weathered to varying degrees and collected from different levels of the underground workings of the Jeroným Mine. The mine itself has been subject to metal extraction (mainly tin and tungsten) since the sixteenth century and has recently been developed as a cultural and scientific attraction open to the public. Activity concentrations of 40K, 232Th and 238U were measured from nine rock samples using gamma-ray spectrometry. The activity concentrations of 40K varied from 595 Bq kg−1 to 1244 Bq kg−1, while 232Th varied from 25 Bq kg−1 to 55 Bq kg−1. The activities associated with 238U ranged from 46 Bq kg−1 to 386 Bq kg−1. The measured activities were used to estimate two radiation hazard indices typically applied to building materials, the activity concentration index I and the external hazard index Hex. Mean respective values of 1.02 and 0.77 for I and Hex indicate that the rocks found in the Jeroným Mine meet radiological safety standards for building materials and do not pose a risk to potential tourists and staff.

Results from the USNO gamma-ray burst optical counterpart search

1994 ◽  
Author(s):  
Frederick J. Vrba ◽  
Dieter H. Hartmann ◽  
Mark C. Jennings
Keyword(s):  
Gamma Ray ◽  
Optical Counterpart ◽  
Gamma Ray Burst

scholarly journals Deep Optical Counterpart Searches of Gamma-Ray Burst Localizations

1995 ◽  
Vol 446 ◽  
pp. 115 ◽  
Author(s):  
Frederick J. Vrba ◽  
Dieter H. Hartmann ◽  
Mark C. Jennings
Keyword(s):  
Gamma Ray ◽  
Optical Counterpart ◽  
Gamma Ray Burst

Natural Radioactivity of Rocks from the Historic Jeroným Mine in the Czech Republic

2021 ◽  
Author(s):  
Dariusz Malczewski ◽  
Maria Dziurowicz ◽  
Zdenek Kalab ◽  
Marketa Rosnerova
Keyword(s):  
Czech Republic ◽  
Natural Radioactivity ◽  
Building Materials ◽  
Gamma Ray ◽  
Hazard Index ◽  
Metal Extraction ◽  
Radiation Hazard ◽  
Gamma Ray Spectrometry ◽  
The Czech Republic ◽  
Activity Concentrations

Abstract This study reports the natural radioactivity of characteristic rocks found in the historic Jeroným Mine of the Czech Republic as measured under the laboratory conditions. The rocks analyzed included granites and schists weathered to varying degrees and collected from different levels of the underground workings of the Jeroným Mine. The mine itself has been subject to metal extraction (mainly tin and tungsten) since the 16th century and has recently been developed as a cultural and scientific attraction open to the public. Activity concentrations of 40K, 232Th and 238U were measured from nine rock samples using gamma-ray spectrometry. The activity concentrations of 40K varied from 595 Bq kg− 1 to 1244 Bq kg− 1, while 232Th varied from 25 Bq kg− 1 to 55 Bq kg− 1. The activities associated with 238U ranged from 46 Bq kg− 1 to 386 Bq kg− 1. The measured activities were used to estimate two radiation hazard indices typically applied to building materials, the activity concentration index I and the external hazard index Hex. Mean respective values of 1.02 and 0.77 for I and Hex indicate that the rocks found in the Jeroným Mine meet radiological safety standards for building materials and do not pose a risk to potential tourists and staff.

Results from Gamma-Ray Optical Counterpart Search Experiment: A Real Time Search for Gamma-Ray Burst Optical Counterparts

1997 ◽  
Vol 482 (2) ◽  
pp. L125-L129 ◽  
Author(s):  
Brian Lee ◽  
Carl Akerlof ◽  
David Band ◽  
Scott Barthelmy ◽  
Paul Butterworth ◽  
...  
Keyword(s):  
Real Time ◽  
Gamma Ray ◽  
Optical Counterpart ◽  
Gamma Ray Burst ◽  
Search Experiment
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