A Type II Supernova Hubble Diagram from the CSP-I, SDSS-II, and SNLS Surveys

dc.creatorJaeger, T. de
dc.creatorGonzález Gaitán, S.
dc.creatorHamuy, M.
dc.creatorGalbany, L.
dc.creatorAnderson, J. P.
dc.creatorPhillips, M. M.
dc.creatorStritzinger, M. D.
dc.creatorCarlberg, R. G.
dc.creatorSullivan, M.
dc.creatorGutiérrez, C. P.
dc.creatorHook, I. M.
dc.creatorHowell, D. A.
dc.creatorHsiao, E. Y.
dc.creatorKuncarayakti, H.
dc.creatorRuhlmann Kleider, V.
dc.creatorFolatelli, Gastón
dc.creatorPritchet, C.
dc.creatorBasa, S.
dc.date2017
dc.date2019-12-11T18:51:54Z
dc.date.accessioned2023-07-14T17:44:32Z
dc.date.available2023-07-14T17:44:32Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/87279
dc.identifierissn:0004-637X
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7428660
dc.descriptionThe coming era of large photometric wide-field surveys will increase the detection rate of supernovae by orders of magnitude. Such numbers will restrict spectroscopic follow-up in the vast majority of cases, and hence new methods based solely on photometric data must be developed. Here, we construct a complete Hubble diagram of Type II supernovae (SNe II) combining data from three different samples: the Carnegie Supernova Project-I, the Sloan Digital Sky Survey II SN, and the Supernova Legacy Survey. Applying the Photometric Color Method (PCM) to 73 SNe II with a redshift range of 0.01-0.5 and with no spectral information, we derive an intrinsic dispersion of 0.35 mag. A comparison with the Standard Candle Method (SCM) using 61 SNe II is also performed and an intrinsic dispersion in the Hubble diagram of 0.27 mag, i.e., 13% in distance uncertainties, is derived. Due to the lack of good statistics at higher redshifts for both methods, only weak constraints on the cosmological parameters are obtained. However, assuming a flat universe and using the PCM, we derive the universes matter density: Ω<sub>m</sub> = 0.32<sup>+0.30</sup><sub>-0.21</sub> providing a new independent evidence for dark energy at the level of two sigma.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.descriptionInstituto de Astrofísica de La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Astronómicas
dc.subjectgalaxies: distances and redshifts
dc.subjectsupernovae: general
dc.subjectwords: distance scale
dc.titleA Type II Supernova Hubble Diagram from the CSP-I, SDSS-II, and SNLS Surveys
dc.typeArticulo
dc.typeArticulo


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