Abstract
The BeppoSAX Catalog has been very recently published. In this paper we analyze-using the Maximum Likelihood (ML) method-the duration distribution of the 1003 GRBs listed in the catalog with duration. The ML method can identify the long and the intermediate duration groups. The short population of the bursts is identified only at a 96% significance level. MC simulation has been also applied and gives a similar significance level; 95%. However, the existence of the short bursts is not a scientific question after the Compton Gamma-Ray Observatory's observation. Our minor result is this well-known fact that in the BeppoSAX data the short bursts are under-represented, mainly caused by the different triggering system. Our major result is the identification of the intermediate group in the BeppoSAX data. Therefore, four different satellites (CGRO, Swift, RHESSI and BeppoSAX) observed the intermediate type Gamma-Ray Burst.
| Original language | English |
|---|---|
| Pages (from-to) | 83-86 |
| Number of pages | 4 |
| Journal | Astrophysics and Space Science |
| Volume | 323 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Aug 2009 |
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Keywords
- Gamma rays: bursts
- Observations
- Theory
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science
Cite this
Classification of BeppoSAX's gamma-ray bursts. / Horváth, I.
In: Astrophysics and Space Science, Vol. 323, No. 1, 08.2009, p. 83-86.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Classification of BeppoSAX's gamma-ray bursts
AU - Horváth, I.
PY - 2009/8
Y1 - 2009/8
N2 - The BeppoSAX Catalog has been very recently published. In this paper we analyze-using the Maximum Likelihood (ML) method-the duration distribution of the 1003 GRBs listed in the catalog with duration. The ML method can identify the long and the intermediate duration groups. The short population of the bursts is identified only at a 96% significance level. MC simulation has been also applied and gives a similar significance level; 95%. However, the existence of the short bursts is not a scientific question after the Compton Gamma-Ray Observatory's observation. Our minor result is this well-known fact that in the BeppoSAX data the short bursts are under-represented, mainly caused by the different triggering system. Our major result is the identification of the intermediate group in the BeppoSAX data. Therefore, four different satellites (CGRO, Swift, RHESSI and BeppoSAX) observed the intermediate type Gamma-Ray Burst.
AB - The BeppoSAX Catalog has been very recently published. In this paper we analyze-using the Maximum Likelihood (ML) method-the duration distribution of the 1003 GRBs listed in the catalog with duration. The ML method can identify the long and the intermediate duration groups. The short population of the bursts is identified only at a 96% significance level. MC simulation has been also applied and gives a similar significance level; 95%. However, the existence of the short bursts is not a scientific question after the Compton Gamma-Ray Observatory's observation. Our minor result is this well-known fact that in the BeppoSAX data the short bursts are under-represented, mainly caused by the different triggering system. Our major result is the identification of the intermediate group in the BeppoSAX data. Therefore, four different satellites (CGRO, Swift, RHESSI and BeppoSAX) observed the intermediate type Gamma-Ray Burst.
KW - Gamma rays: bursts
KW - Observations
KW - Theory
UR - http://www.scopus.com/inward/record.url?scp=70350637378&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70350637378&partnerID=8YFLogxK
U2 - 10.1007/s10509-009-0039-1
DO - 10.1007/s10509-009-0039-1
M3 - Article
VL - 323
SP - 83
EP - 86
JO - Astrophysics and Space Science
JF - Astrophysics and Space Science
SN - 0004-640X
IS - 1
ER -