Probing galaxy density profiles with future supernova surveys

Details Probing galaxy density profiles with future supernova surveys Probing galaxy density profiles with future supernova surveys

2004-06-15

arxiv.org/abs/astro-ph/0406343v2

Astrophys.J. 619 (2005) 733-740

Astronomy and Astrophysics

Astrophysics

21 pages, 5 figures. Minor changes to match version accepted in Astrophysical Journal

Scientific paper

10.1086/426706

In this paper we discuss the possibility to measure the Hubble parameter and the slope of galaxy density profiles using future supernova data. With future supernova surveys such as SNAP, large numbers of core collapse supernovae will be discovered, a small fraction of which will be multiply imaged. Measurements of the image separation, flux-ratio, time-delay and lensing foreground galaxy for these systems will provide tight constraints on the slope of galactic halos as well as providing complementary and independent information to other cosmological tests with respect to the Hubble parameter.

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