Constraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovae

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dc.contributor.authorGarnavich, Peter M
dc.contributor.authorKirshner, Robert P
dc.contributor.authorChallis, Peter M
dc.contributor.authorTonry, John
dc.contributor.authorGilliland, Ron
dc.contributor.authorSmith, R.C.
dc.contributor.authorClocchiatti, Alejandro
dc.contributor.authorDiercks, Alan
dc.contributor.authorFilippenko, A V
dc.contributor.authorHamuy, M
dc.contributor.authorHogan, Craig
dc.contributor.authorSchmidt, Brian
dc.date.accessioned2023-01-19T22:07:50Z
dc.date.issued1998
dc.date.updated2021-11-28T07:37:05Z
dc.description.abstractWe have coordinated Hubble Space Telescope (HST) photometry with ground-based discovery for three supernovae: Type Ia supernovae near z~0.5 (SN 1997ce, SN 1997cj) and a third event at z=0.97 (SN 1997ck). The superb spatial resolution of HST separates each supernova from its host galaxy and leads to good precision in the light curves. We use these light curves and relations between luminosity, light-curve shape, and color calibrated from low-z samples to derive relative luminosity distances that are accurate to 10% at z~0.5 and 20% at z=1. When the HST sample is combined with the distance to SN 1995K (z=0.48), analyzed by the same precepts, we find that matter alone is insufficient to produce a flat universe. Specifically, for Ωm+ΩΛ=1, Ωm is less than 1 with more than 95% confidence, and our best estimate of Ωm is -0.1+/-0.5 if ΩΛ=0. Although this result is based on a very small sample whose systematics remain to be explored, it demonstrates the power of HST measurements for high-redshift supernovae.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0004-637Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/283856
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/6401/..."published version can be archived in institutional repository" from Sherpa/Romeo site as at 20/01/2023
dc.publisherIOP Publishingen_AU
dc.rights© 1998 The authorsen_AU
dc.sourceThe Astrophysical Journalen_AU
dc.subjectcosmology: observationsen_AU
dc.subjectgalaxies: distances and redshiftsen_AU
dc.subjectsupernovae: generalen_AU
dc.subjectsupernovae: individual (SN 1995K, SN 1997ce, SN 1997cj, SN 1997ck)en_AU
dc.titleConstraints on Cosmological Models from Hubble Space Telescope Observations of High-z Supernovaeen_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Access
local.bibliographicCitation.issue2en_AU
local.bibliographicCitation.lastpageL57en_AU
local.bibliographicCitation.startpageL53en_AU
local.contributor.affiliationGarnavich, Peter M, Harvard-Smithsonian Center for Astrophysicsen_AU
local.contributor.affiliationKirshner, Robert P, Harvard-Smithsonian Center for Astrophysicsen_AU
local.contributor.affiliationChallis, Peter M, Harvard-Smithsonian Center for Astrophysicsen_AU
local.contributor.affiliationTonry, John, University of Hawaiien_AU
local.contributor.affiliationGilliland, Ron, Space Telescope Science Instituteen_AU
local.contributor.affiliationSmith, R.C., National Optical Astronomy Observatoryen_AU
local.contributor.affiliationClocchiatti, Alejandro, Pontifica Universidad Catolica (Astronomy)en_AU
local.contributor.affiliationDiercks, Alan, University of Washingtonen_AU
local.contributor.affiliationFilippenko, A V, Department of Astronomy, University of California, 501 Campbell Hall, Berkeley, CA 94720, USAen_AU
local.contributor.affiliationHamuy, M, Observatories of the Carnegie Institution of Washingtonen_AU
local.contributor.affiliationHogan, Craig, University of Washingtonen_AU
local.contributor.affiliationSchmidt, Brian, Services Portfolio, ANUen_AU
local.contributor.authoremailu9500253@anu.edu.auen_AU
local.contributor.authoruidSchmidt, Brian, u9500253en_AU
local.description.notesImported from ARIESen_AU
local.description.notesBrian was affiliated with Harvard-Smithsonian Center for Astrophysics when the paper was published
local.identifier.absfor510103 - Cosmology and extragalactic astronomyen_AU
local.identifier.absfor510106 - High energy astrophysics and galactic cosmic raysen_AU
local.identifier.absseo280120 - Expanding knowledge in the physical sciencesen_AU
local.identifier.ariespublicationU6645980xPUB55en_AU
local.identifier.citationvolume493en_AU
local.identifier.doi10.1086/311140en_AU
local.identifier.uidSubmittedByU6645980en_AU
local.publisher.urlhttps://iopscience.iop.org/en_AU
local.type.statusPublished Versionen_AU

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