Time delay in gravitational lens systems and cosmological parameters

dc.contributor.author	Narasimha, D
dc.date.accessioned	2008-07-22T12:06:33Z
dc.date.available	2008-07-22T12:06:33Z
dc.date.issued	2002-09
dc.identifier.citation	BASI, Vol. 30, No. 3, pp. 723 - 728	en
dc.identifier.uri	http://hdl.handle.net/2248/2829
dc.description.abstract	The time delay between the multiple images in gravitational lens systems is affected by large scale mass distribution in the lens, even though it might not have observable effects on the macro images. Inhomogeneity at very small scale will not directly affect the time delay but will influence the models of mass distribution in the lens galaxy. How this degeneracy can be eliminated is described. A method to determine time delay based on smoothed cubic splines is explained. The value of the Hubble Constant, inferred from the time delay in 5 well-constrained lens systems is 56 ± 8 kIn S-1 Mpc-1•	en
dc.format.extent	247611 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Cosmology	en
dc.subject	Cosmological Parameters	en
dc.subject	Hubble Constant	en
dc.subject	Gravitational-Lensing - Time Delay	en
dc.title	Time delay in gravitational lens systems and cosmological parameters	en
dc.type	Article	en