Sökning: "strong gravitational lensing"
Hittade 2 avhandlingar innehållade orden strong gravitational lensing.
1. Supernovae seen through gravitational telescopes
Sammanfattning : Galaxies, and clusters of galaxies, can act as gravitational lenses and magnify the light of objects behind them. The effect enables observations of very distant supernovae, that otherwise would be too faint to be detected by existing telescopes, and allows studies of the frequency and properties of these rare phenomena when the universe was young. LÄS MER
2. Observations of submillimeter galaxies and of the Sunyaev-Zeldovich effect toward clusters of galaxies
Sammanfattning : This thesis describes observations of a population of high-redshift, dusty star-forming galaxies: thesubmillimeter (submm) galaxies. The submm galaxies detected so far are very massive and lumi-nous systems, with huge star-formation-rates (SFR>100Myr−1), large reservoirs of moleculargas (Mgas∼1×1010M) and large dynamical masses (Mdyn>1010M). LÄS MER