Observing high-redshift Supernovae in lensed galaxies
| dc.contributor.author | Saini, Tarun Deep | |
| dc.contributor.author | Raychaudhury, Somak | |
| dc.contributor.author | Shchekinov, Yuri A. | |
| dc.date.accessioned | 2012-03-12T11:23:20Z | |
| dc.date.available | 2012-03-12T11:23:20Z | |
| dc.date.issued | 2000-01-28 | |
| dc.description.abstract | Supernovae in distant galaxies that are grav- tationally lensed by foreground galaxy clusters make ex- cellent cosmological candles for measuring quantities like the density of the Universe in its various components and the Hubble constant. Distant supernovae will be more eas- ly detectable since foreground cluster lenses would mag- nify such supernovae by up to 3–4 magnitudes. We show that in the case of the lens cluster Abell 2218, the de- tectability of high-redshift supernovae is significantly en- hanced due to the lensing effects of the cluster. Since ensed supernovae will remain point images even when their host galaxies are stretched into arcs, the signal-to- noise ratio for their observation will be further enhanced, typically by an order of magnitude. We recommend moni- toring well-modelled clusters with several known arclets for the detection of cosmologically useful SNe around z = 1 and beyond. | en_US |
| dc.identifier.uri | http://hdl.handle.net/11007/1286 | |
| dc.language.iso | en | en_US |
| dc.relation.ispartofseries | IUCAA Preprint;08/00 | |
| dc.subject | Cosmology: gravitational lensing | en_US |
| dc.subject | Cosmology | en_US |
| dc.subject | distance scale galaxies | en_US |
| dc.subject | Clusters | en_US |
| dc.subject | General stars | en_US |
| dc.subject | Supernovae | en_US |
| dc.title | Observing high-redshift Supernovae in lensed galaxies | en_US |
| dc.type | Preprint | en_US |