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THE EXPANDING PHOTOSPHERE METHOD APPLIED TO SN-1992AM AT CZ=14600KM-S

Authordc.contributor.authorSchmidt, Brian P. 
Authordc.contributor.authorKirshner, Robert P. es_CL
Authordc.contributor.authorEastman, Ronald G. es_CL
Authordc.contributor.authorHamuy Wackenhut, Mario es_CL
Authordc.contributor.authorPhillips, Mark M. es_CL
Authordc.contributor.authorSuntzeff, Nicholas B. es_CL
Authordc.contributor.authorMaza Sancho, José es_CL
Authordc.contributor.authorFilippenko, Alexei V. es_CL
Authordc.contributor.authorHo, Luis C. es_CL
Authordc.contributor.authorMatheson, Thomas es_CL
Authordc.contributor.authorGrashuis, Randy es_CL
Authordc.contributor.authorAviles, Roberto es_CL
Authordc.contributor.authorKirkpatrick, J. Davy es_CL
Authordc.contributor.authorChallis, Peter es_CL
Authordc.contributor.authorKuijken, Konrad es_CL
Authordc.contributor.authorZucker, Daniel es_CL
Authordc.contributor.authorBolte, Michael es_CL
Authordc.contributor.authorTyson, Neil D. es_CL
Admission datedc.date.accessioned2014-01-09T20:13:22Z
Available datedc.date.available2014-01-09T20:13:22Z
Publication datedc.date.issued1994-04
Cita de ítemdc.identifier.citationASTRONOMICAL JOURNAL Volume: 107 Issue: 4 Pages: 1444-& Published: APR 1994en_US
Identifierdc.identifier.otherDOI: 10.1086/116957
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/126154
General notedc.descriptionArtículo de publicación ISIen_US
Abstractdc.description.abstractWe present photometry and spectroscopy of SN 1992am for five months following its discovery by the Calan/CTIO SN search. These data show SN 1992am to be type II-P, displaying hydrogen in its spectrum and the typical shoulder in its light curve. The photometric data and the distance from our own analysis are used to construct the supernova's bolometric light curve. Using the bolometric light curve, we estimate SN 1992am ejected approximately 0.30. M. of Ni-56, an amount four times larger than that of other well studied SNe II. SN 1992am's; host galaxy lies at a redshift of cz = 14 600 km s-1, making it one of the most distant SNe II discovered, and an important application of the Expanding Photosphere Method. Since z = 0.05 is large enough for redshift-dependent effects to matter, we develop the technique to derive luminosity distances with the Expanding Photosphere Method at any redshift. and apply this method to SN 1992am. The derived distance, D = 180(+30/-25) Mpc, is independent of all other rungs in the extragalactic distance ladder. The redshift of SN 1992am's host galaxy is sufficiently large that uncertainties due to perturbations in the smooth Hubble flow should be smaller than 10%. The Hubble ratio derived from the distance and redshift of this single object is H-0 = 81(+17/-15) km s-1 Mpc-1. In the future, with more of these distant objects, we hope to establish an independent and statistically robust estimate of H-0 based solely on type II supernovae.en_US
Lenguagedc.language.isoenen_US
Publisherdc.publisherAMER INST PHYSICSen_US
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile*
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/*
Títulodc.titleTHE EXPANDING PHOTOSPHERE METHOD APPLIED TO SN-1992AM AT CZ=14600KM-Sen_US
Document typedc.typeArtículo de revistaen_US


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