Unveiling the multifaceted GRB 200613A: Prompt emission dynamics, afterglow evolution, and the host galaxy's properties
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00599709" target="_blank" >RIV/67985815:_____/24:00599709 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0357204" target="_blank" >https://hdl.handle.net/11104/0357204</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-4357/ad6306" target="_blank" >10.3847/1538-4357/ad6306</a>
Alternative languages
Result language
angličtina
Original language name
Unveiling the multifaceted GRB 200613A: Prompt emission dynamics, afterglow evolution, and the host galaxy's properties
Original language description
We present our optical observations and multiwavelength analysis of the GRB 200613A detected by the Fermi satellite. Time-resolved spectral analysis of the prompt gamma-ray emission was conducted utilizing the Bayesian block method to determine statistically optimal time bins. Based on the Bayesian Information Criterion, the data generally favor the Band+blackbody (BB) model. We speculate that the main Band component comes from the Blandford-Znajek mechanism, while the additional BB component comes from the neutrino annihilation process. The BB component becomes significant for a low-spin, high-accretion-rate black hole central engine, as evidenced by our model comparison with the data. The afterglow light curve exhibits typical power-law decay, and its behavior can be explained by the collision between the ejecta and the constant interstellar medium. In addition, we employed the public Python package Prospector to perform a spectral energy distribution modeling of the host galaxy. The results suggest that the host galaxy is a massive galaxy ( log(M*/M circle dot)=11.75-0.09+0.10 ) with a moderate star formation rate ( SFR=22.58-7.22+13.63M circle dot yr-1). This SFR is consistent with the SFR of similar to 34.2M circle dot yr-1 derived from the [O ii] emission line in the observed spectrum.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
1538-4357
Volume of the periodical
974
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
21
Pages from-to
221
UT code for WoS article
001331327000001
EID of the result in the Scopus database
2-s2.0-85207331635