Probing Galaxy Density Profiles with Future Supernova Surveys | Zendy

Edvard Mörtsell | Zendy; H. Dahle | Zendy; Steen Hannestad | Zendy

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Probing Galaxy Density Profiles with Future Supernova Surveys

Author(s) -

Edvard Mörtsell,

H. Dahle,

Steen Hannestad

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/426706

Subject(s) - supernova , physics , astrophysics , galaxy , hubble's law , acceleration , galactic halo , halo , astronomy , flux (metallurgy) , materials science , redshift , classical mechanics , metallurgy

In this paper we discuss the possibility to measure the Hubble parameter andthe slope of galaxy density profiles using future supernova data. With futuresupernova surveys such as SNAP, large numbers of core collapse supernovae willbe discovered, a small fraction of which will be multiply imaged. Measurementsof the image separation, flux-ratio, time-delay and lensing foreground galaxyfor these systems will provide tight constraints on the slope of galactic halosas well as providing complementary and independent information to othercosmological tests with respect to the Hubble parameter.Comment: 21 pages, 5 figures. Minor changes to match version accepted in Astrophysical Journa

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