Probing the evolution of the dark energy density with future supernova surveys
dc.contributor.author | Wang, Yun | en_US |
dc.contributor.author | Kostov, Veselin | en_US |
dc.contributor.author | Freese, Katherine | en_US |
dc.contributor.author | Frieman, Joshua A. | en_US |
dc.contributor.author | Gondolo, Paolo | en_US |
dc.date.accessioned | 2006-12-19T19:04:47Z | |
dc.date.available | 2006-12-19T19:04:47Z | |
dc.date.issued | 2004-12-01 | en_US |
dc.identifier.citation | Wang, Yun; Kostov, Veselin; Freese, Katherine; Frieman, Joshua A; Gondolo, Paolo (2004). "Probing the evolution of the dark energy density with future supernova surveys." Journal of Cosmology and Astroparticle Physics. 12(003). <http://hdl.handle.net/2027.42/48984> | en_US |
dc.identifier.issn | 1475-7516 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/48984 | |
dc.description.abstract | The time dependence of the dark energy density can be an important clue to the nature of dark energy in the universe. We show that future supernova data from dedicated telescopes (such as SNAP), when combined with data of nearby supernovae, can be used to determine how the dark energy density ρX(z) depends on redshift, if ρX(z) is not too close to a constant. For quantitative comparison, we have done an extensive study of a number of dark energy models. Based on these models we have simulated data sets in order to show that we can indeed reconstruct the correct sign of the time dependence of the dark energy density, outside of a degeneracy region centred on (where zmax is the maximum redshift of the survey; for example, zmax = 1.7 for SNAP). | en_US |
dc.format.extent | 3118 bytes | |
dc.format.extent | 559897 bytes | |
dc.format.mimetype | text/plain | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.publisher | IOP Publishing Ltd | en_US |
dc.title | Probing the evolution of the dark energy density with future supernova surveys | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Michigan Center for Theoretical Physics, Physics Department, University of Michigan, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA | en_US |
dc.contributor.affiliationother | Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA | en_US |
dc.contributor.affiliationother | NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, IL 60510, USA ; Department of Astronomy and Astrophysics and Center for Cosmological Physics, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA | en_US |
dc.contributor.affiliationother | Department of Physics, University of Utah, 115 South 1400 East, Suite 201, Salt Lake City, UT 84112-0830, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/48984/2/jcap4_12_003.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1088/1475-7516/2004/12/003 | en_US |
dc.identifier.source | Journal of Cosmology and Astroparticle Physics. | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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