ŘÍPA, Jakub, András PÁL, Masanori OHNO, Norbert WERNER, László MÉSZÁROS, Balázs CSÁK, Marianna DAFČÍKOVÁ, Vladimír DÁNIEL, Juraj DUDÁŠ, Marcel FRAJT, Peter HANÁK, Ján HUDEC, Milan JUNAS, Jakub KAPUŠ, Miroslav KASAL, Martin KOLEDA, Robert LASZLO, Pavol LIPOVSKY, Filip MÜNZ, Maksim REZENOV, Miroslav ŠMELKO, Petr SVOBODA, Hiromitsu TAKAHASHI, Martin TOPINKA, Tomáš URBANEC, Jean-Paul Bernhard RIFFALD SOUZA BREUER, Teruaki ENOTO, Zsolt FREI, Yasushi FUKAZAWA, Gábor GALGÓCZI, Filip HROCH, Yuto ICHINOHE, László L. KISS, Hiroto MATAKE, Tsunefumi MIZUNO, Kazuhiro NAKAZAWA, Hirokazu ODAKA, Helen POON, Nagomi UCHIDA and Yuusuke UCHIDA. Early results from GRBAlpha and VZLUSAT-2. Online. In Jan-Willem A. den Herder, Shouleh Nikzad, Kazuhiro Nakazawa. Proceedings of SPIE, Volume 12181: Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray. Washington: SPIE, 2022, p. 1-11. ISBN 978-1-5106-5343-6. Available from: https://dx.doi.org/10.1117/12.2629332.
Other formats:   BibTeX LaTeX RIS
Basic information
Original name Early results from GRBAlpha and VZLUSAT-2
Authors ŘÍPA, Jakub (203 Czech Republic, belonging to the institution), András PÁL, Masanori OHNO, Norbert WERNER (703 Slovakia, belonging to the institution), László MÉSZÁROS, Balázs CSÁK, Marianna DAFČÍKOVÁ (703 Slovakia, belonging to the institution), Vladimír DÁNIEL, Juraj DUDÁŠ, Marcel FRAJT, Peter HANÁK, Ján HUDEC, Milan JUNAS, Jakub KAPUŠ, Miroslav KASAL, Martin KOLEDA, Robert LASZLO, Pavol LIPOVSKY, Filip MÜNZ (203 Czech Republic, belonging to the institution), Maksim REZENOV, Miroslav ŠMELKO, Petr SVOBODA, Hiromitsu TAKAHASHI, Martin TOPINKA, Tomáš URBANEC, Jean-Paul Bernhard RIFFALD SOUZA BREUER (76 Brazil, belonging to the institution), Teruaki ENOTO, Zsolt FREI, Yasushi FUKAZAWA, Gábor GALGÓCZI (348 Hungary, belonging to the institution), Filip HROCH (203 Czech Republic, belonging to the institution), Yuto ICHINOHE, László L. KISS, Hiroto MATAKE, Tsunefumi MIZUNO, Kazuhiro NAKAZAWA, Hirokazu ODAKA, Helen POON, Nagomi UCHIDA and Yuusuke UCHIDA.
Edition Washington, Proceedings of SPIE, Volume 12181: Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray, p. 1-11, 11 pp. 2022.
Publisher SPIE
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
Publication form electronic version available online
WWW URL URL
RIV identification code RIV/00216224:14310/22:00127112
Organization unit Faculty of Science
ISBN 978-1-5106-5343-6
ISSN 0277-786X
Doi http://dx.doi.org/10.1117/12.2629332
UT WoS 000865607100031
Keywords in English gamma-rays; gamma-ray bursts; high-energy astrophysics; nano-satellites; instrumentation; detectors; scintillators; multi-pixel photon counter; low Earth orbit background
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 19/1/2023 15:10.
Abstract
We present the detector performance and early science results from GRBAlpha, a 1U CubeSat mission, which is a technological pathfinder to a future constellation of nanosatellites monitoring gamma-ray bursts (GRBs). GRBAlpha was launched in March 2021 and operates on a 550 km altitude sun-synchronous orbit. The gamma-ray burst detector onboard GRBAlpha consists of a 75×75×5 mm CsI(Tl) scintillator, read out by a dual-channel multi-pixel photon counter (MPPC) setup. It is sensitive in the ∼30−900 keV range. The main goal of GRBAlpha is the in-orbit demonstration of the detector concept, verification of the detector’s lifetime, and measurement of the background level on low-Earth orbit, including regions inside the outer Van Allen radiation belt and in the South Atlantic anomaly. GRBAlpha has already detected five, both long and short, GRBs and two bursts were detected within a time-span of only 8 hours, proving that nanosatellites can be used for routine detection of gamma-ray transients. For one GRB, we were able to obtain a high resolution spectrum and compare it with measurements from the Swift satellite. We find that, due to the variable background, the time fraction of about 67% of the low-Earth polar orbit is suitable for gamma-ray burst detection. One year after launch, the detector performance is good and the degradation of the MPPC photon counters remains at an acceptable level. The same detector system, but double in size, was launched in January 2022 on VZLUSAT-2 (3U CubeSat). It performs well and already detected three GRBs and two solar flares. Here, we present early results from this mission as well.
Links
MUNI/I/0003/2020, interní kód MUName: MUNI Award in Science and Humanities 3 (Acronym: Space-Based High-Energy Astrophysics)
Investor: Masaryk University, MUNI Award in Science and Humanities 3, MASH - MUNI Award in Science and Humanities
871158, interní kód MUName: Integrated Activities for the High Energy Astrophysics Domain (AHEAD2020) (Acronym: AHEAD2020)
Investor: European Union, Integrated Activities for the High Energy Astrophysics Domain, RI Research Infrastructures (Excellent Science)
PrintDisplayed: 30/5/2024 05:31