SNe type II from CSP-I, SDSS-II, and SNLS

DOI

The 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 0.35mag. A comparison with the Standard Candle Method (SCM) using 61 SNe II is also performed and an intrinsic dispersion in the Hubble diagram of 0.27mag, 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 universe's matter density: {Omega}m=0.32_-0.21_^+0.30^ providing a new independent evidence for dark energy at the level of two sigma.

Cone search capability for table J/ApJ/835/166/table1 (Supernova sample)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18350166
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/835/166
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/835/166
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/835/166
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/835/166
Provenance
Creator de Jaeger T.; Gonzalez-Gaitan S.; Hamuy M.; Galbany L.; Anderson J.P.,Phillips M.M.; Stritzinger M.D.; Carlberg R.G.; Sullivan M.,Gutierrez C.P.; Hook I.M.; Howell D.A.; Hsiao E.Y.; Kuncarayakti H.,Ruhlmann-Kleider V.; Folatelli G.; Pritchet C.; Basa S.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy