Time Delay Monitoring of Gravitational Lens 2016+112

Details Time Delay Monitoring of Gravitational Lens 2016+112 Time Delay Monitoring of Gravitational Lens 2016+112

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710505h&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #105.05; Bulletin of the American Astronomical Society, Vol. 32, p.1578

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The time delay of a gravitational lens, when combined with a model of the lens mass distribution and other information, yields the angular diameter distance to the lens. The gravitational lens system 2016+112 has the highest redshift lens of any system discovered so far, and thus its distance would yield important information not only about the Hubble parameter, but also about the mass density of the universe and the cosmological constant. We have made monthly observations of 2016+112 at the VLA (during favorable arrays) since June 1999 at 3.6 and 6 cm, which we will combine with archive data from 1987-1993. This poster gives a status report on the effort to detect variability and determine the time delay of the lens. We acknowledge the support of a Cottrell College Science Award from Research Corporation.

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