Probing dark energy with gamma-ray bursts
| dc.creator | Takahashi, K. | |
| dc.creator | Oguri, M. | |
| dc.creator | Kotake, K. | |
| dc.creator | Ohno, H. | |
| dc.date | 2003-05-15 | |
| dc.date | 2003-06-01 | |
| dc.date.accessioned | 2026-07-07T02:08:29Z | |
| dc.date.available | 2026-07-07T02:08:29Z | |
| dc.description | We propose a new method to use gamma-ray bursts (GRBs) as an alternative probe of the dark energy. By calibrating luminosity-variability and luminosity-lag time relations at low redshift where distance-redshift relations have been already determined from type Ia supernova (SNIa), GRBs at high redshift can be used as a distance indicator. We investigate the potential impact of future GRB data on determining the current matter density $Ω_{m}$ and the dark energy equation of state $w$ which is assumed to be constant. We show that a combined analysis of a data set expected from the {\it Swift} and the current SNIa data results in excellent determination of both $Ω_{m}$ and $w$. | |
| dc.description | 4 pages, 6 figures, corrected some typos | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0305260 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0305260 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/6071 | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Probing dark energy with gamma-ray bursts | |
| dc.type | text |