Year: 1999
Type: article
Abstract: In the case of gravitationally lensed quasars, it is well known that there is a time delay between the occurrence of the intrinsic variabilities in each split image. Generally, the source of variabilities has a finite size, and there are time delays even in one image. If the origin of variabilities is widely distributed, say over ≳100 pc as a whole, variabilities between split images will not show a good correlation even though their origin is identical. Using this fact, we are able to limit the whole source size of variabilities in a quasar below the limit of direct resolution by today's observational instruments.
Source: The Astrophysical Journal
DOI: 10.1086/312107
Author: Atsunori Yonehara
Institutions: Japan Society for the Promotion of Science, Kyoto University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1998862216