Table · dataset · 2023
Type I GRBs and the new classification method
Listed in IVOA Registry (Virtual Observatory)
We present the most extensive sample of 45 type I (short) and 275 type II (long) gamma-ray bursts (GRBs) with known redshift to investigate the correlation between the rest-frame peak energy, E_p,i_ and the total isotropic equivalent energy, E_iso_ of the prompt emission (Amati relation).
Description
The E_p,i_-E_iso_ correlation for type I bursts is found to be well distinguished from the one constructed for type II bursts and has a similar power-law index value, E_p,i_{prop.to}E_iso_^0.4^, which possibly indicates the same emission mechanism of both GRB types.
We show that the initial pulse complex (IPC) of type I bursts with an extended emission and regular type I bursts follow the same correlation. We obtain similar results for type II bursts associated with Ic supernovae and for regular type II bursts. Three possible outliers from the E_p,i_-E_iso_ correlation for type II subsample are detected.
Read the rest (2 more)
Significant evolution of the E_p,i_-E_iso_ correlation with redshift for type II bursts is not found. We suggest the new classification method, based on the E_p,i_-E_iso_ correlation and introduce two parameters, EH=E_p,i,2_E_iso,51_^-0.4^ and EHD=E_p,i,2_ E_iso,51_^-0.4^T_90,i_^-0.5^, where E_p,i,2_ is the value of E_p,i_ parameter in units of 100keV, E_iso,51_ is the value of E_iso_ parameter in units of 10^51^erg, and T_90,i_ is the rest-frame duration in units of seconds.
EHD is found to be the most reliable parameter for the blind type I/type II classification, which can be used to classify GRBs with no redshift.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/492/1919 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2020MNRAS.492.1919M ui.adsabs.harvard.edu/abs/2020MNRAS.492.1919M ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/mnras/492/1919 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Gamma-Ray
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/mnras/492/1919 | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:gamma-ray | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |