Redshift Degeneracy in the Eiso-Epeak Relation of Gamma-Ray Bursts
| dc.creator | Li, Li-Xin | |
| dc.date | 2006-07-17 | |
| dc.date | 2006-10-13 | |
| dc.date.accessioned | 2026-07-07T10:23:20Z | |
| dc.date.available | 2026-07-07T10:23:20Z | |
| dc.description | In this Letter we show that there is a redshift degeneracy in the Eiso-Epeak relation of gamma-ray bursts (GRBs). If a GRB has a redshift solved from the Eiso-Epeak relation that lies in the range of 0.9<z<20, a GRB that has the same observed fluence and peak spectral energy but is at a different redshift in that range also satisfies the Eiso-Epeak relation within 1-sigma error, implying an extremely large error in the calculated redshift. Even if the data scatter in the Eiso-Epeak relation is reduced by a factor of 2, the error in the predicted redshift is still large enough to prevent constraining the redshift meaningfully. Hence, the Eiso-Epeak relation is not useful for determining the GRB distance. | |
| dc.description | 4 pages, 4 figures. Accepted by MNRAS Letters | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0607366 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0607366 | |
| dc.identifier | Mon.Not.Roy.Astron.Soc.Lett.374:L20-L23,2007 | |
| dc.identifier | doi:10.1111/j.1745-3933.2006.00256.x | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/175788 | |
| dc.subject | Astrophysics | |
| dc.title | Redshift Degeneracy in the Eiso-Epeak Relation of Gamma-Ray Bursts | |
| dc.type | text |