ON THE SPECTRAL LAGS AND PEAK COUNTS OF THE GAMMA-RAY BURSTS DETECTED BY THE RHESSI SATELLITE

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10129542" target="_blank" >RIV/00216208:11320/12:10129542 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0004-637X/756/1/44" target="_blank" >http://dx.doi.org/10.1088/0004-637X/756/1/44</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0004-637X/756/1/44" target="_blank" >10.1088/0004-637X/756/1/44</a>

Result language

angličtina

Original language name

ON THE SPECTRAL LAGS AND PEAK COUNTS OF THE GAMMA-RAY BURSTS DETECTED BY THE RHESSI SATELLITE

Original language description

A sample of 427 gamma-ray bursts (GRBs) from a database (2002 February-2008 April) of the RHESSI satellite is analyzed statistically. The spectral lags and peak-count rates, which have been calculated for the first time in this paper, are studied, completing an earlier analysis of durations and hardness ratios. The analysis of the RHESSI database has already inferred the existence of a third group with intermediate duration, apart from the so-called short and long groups. The first aim of this article is to discuss the properties of these intermediate-duration bursts in terms of peak-count rates and spectral lags. The second aim is to discuss the number of GRB groups using another statistical method and by also employing the peak-count rates and spectral lags. The standard parametric (model-based clustering) and non-parametric (K-means clustering) statistical tests together with the Kolmogorov-Smirnov and Anderson-Darling tests are used. Two new results are obtained. (1) The intermedia

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

—

Project

<a href="/en/project/GAP209%2F10%2F0734" target="_blank" >GAP209/10/0734: Gamma-ray bursts</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astrophysical Journal

ISSN

0004-637X

e-ISSN

—

Volume of the periodical

756

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

—

UT code for WoS article

000309044300044

EID of the result in the Scopus database

—