About: Gamma-ray burst classes found in the RHESSI data sample

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A sample of 427 gamma-ray bursts (GRBs), measured by the RHESSI satellite, is studied statistically to determine the number of ORB groups. Previous studies based on the BATSE Catalog and recently on the Swift data claim the existence of an intermediate GRB group, besides the long and short groups. Using only the GRB durations T-90 and chi(2) or F-test, we have not found any statistically significant intermediate group. However, the maximum likelihood ratio test, one-dimensional as well as two-dimensional hardness vs. T-90 plane, reveal the reality of an intermediate group. Hence, the existence of this group follows not only from the BATSE and Swift datasets, but also from the RHESSI results. A sample of 427 gamma-ray bursts (GRBs), measured by the RHESSI satellite, is studied statistically to determine the number of ORB groups. Previous studies based on the BATSE Catalog and recently on the Swift data claim the existence of an intermediate GRB group, besides the long and short groups. Using only the GRB durations T-90 and chi(2) or F-test, we have not found any statistically significant intermediate group. However, the maximum likelihood ratio test, one-dimensional as well as two-dimensional hardness vs. T-90 plane, reveal the reality of an intermediate group. Hence, the existence of this group follows not only from the BATSE and Swift datasets, but also from the RHESSI results. (en)
Title	Gamma-ray burst classes found in the RHESSI data sample Gamma-ray burst classes found in the RHESSI data sample (en)
skos:prefLabel	Gamma-ray burst classes found in the RHESSI data sample Gamma-ray burst classes found in the RHESSI data sample (en)
skos:notation	RIV/67985815:_____/09:00355599!RIV11-GA0-67985815
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA205/08/1207), P(GD205/08/H005), S, Z(AV0Z10030501), Z(MSM0021620860)
http://linked.open...iv/cisloPeriodika	3-4
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Hudec, René
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Astronomický ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	315951
http://linked.open...ai/riv/idVysledku	RIV/67985815:_____/09:00355599
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	gamma rays; bursts (en)
http://linked.open.../riv/klicoveSlovo	bursts gamma rays
http://linked.open...odStatuVydavatele	LT - Litevská republika
http://linked.open...ontrolniKodProRIV	[BF36E05CAE00]
http://linked.open...i/riv/nazevZdroje	Baltic Astronomy
http://linked.open...in/vavai/riv/obor	BN
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Identifications of gamma-sources detected by the INTEGRAL satellite Physics of Sun, stars, and stellar systems
http://linked.open...UplatneniVysledku	2009
http://linked.open...v/svazekPeriodika	18
http://linked.open...iv/tvurceVysledku	Hudec, René Huja, D. Wigger, C. Řípa, J.
http://linked.open...ain/vavai/riv/wos	000276474400013
http://linked.open...n/vavai/riv/zamer	Astronomie a astrofyzika Fyzikální studium objektů a procesů ve sluneční soustavě a v astrofyzikálních systémech
issn	1392-0049
number of pages	5 (xsd:int)

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