Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties
dc.contributor.author | Gupta, Ravi R | |
dc.contributor.author | D’Andrea, Chris B | |
dc.contributor.author | Sako, Masao | |
dc.contributor.author | Conroy, Charlie | |
dc.contributor.author | Smith, Mathew | |
dc.contributor.author | Bassett, Bruce | |
dc.contributor.author | Frieman, Joshua A | |
dc.contributor.author | Garnavich, Peter M | |
dc.contributor.author | Jha, Saurabh W | |
dc.contributor.author | Kessler, Richard | |
dc.contributor.author | Lampeitl, Hubert | |
dc.contributor.author | Marriner, John | |
dc.contributor.author | Nichol, Robert C | |
dc.contributor.author | Schneider, Donald P | |
dc.date.accessioned | 2021-10-08T07:20:36Z | |
dc.date.available | 2021-10-08T07:20:36Z | |
dc.date.issued | 2011 | |
dc.description.abstract | We improve estimates of the stellar mass and mass-weighted average age of Type Ia supernova (SN Ia) host galaxies by combining UV and near-IR photometry with optical photometry in our analysis. Using 206 SNe Ia drawn from the full three-year Sloan Digital Sky Survey (SDSS-II) Supernova Survey (median redshift of z 0.2) and multi-wavelength host-galaxy photometry from SDSS, the Galaxy Evolution Explorer, and the United Kingdom Infrared Telescope Infrared Deep Sky Survey, we present evidence of a correlation (1.9σ confidence level) between the residuals of SNe Ia about the best-fit Hubble relation and the mass-weighted average age of their host galaxies. The trend is such that older galaxies host SNe Ia that are brighter than average after standard light-curve corrections are made. We also confirm, at the 3.0σ level, the trend seen by previous studies that more massive galaxies often host brighter SNe Ia after light-curve correction. | |
dc.identifier.apacitation | Gupta, R. R., , Sako, M., Conroy, C., Smith, M., Bassett, B., ... Schneider, D. P. (2011). Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties. <i>The Astrophysical Journal</i>, 740(2), 92 - 177. http://hdl.handle.net/11427/34964 | en_ZA |
dc.identifier.chicagocitation | Gupta, Ravi R, , Masao Sako, Charlie Conroy, Mathew Smith, Bruce Bassett, Joshua A Frieman, et al "Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties." <i>The Astrophysical Journal</i> 740, 2. (2011): 92 - 177. http://hdl.handle.net/11427/34964 | en_ZA |
dc.identifier.citation | Gupta, R.R., , Sako, M., Conroy, C., Smith, M., Bassett, B., Frieman, J.A. & Garnavich, P.M. et al. 2011. Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties. <i>The Astrophysical Journal.</i> 740(2):92 - 177. http://hdl.handle.net/11427/34964 | en_ZA |
dc.identifier.issn | 0004-637X | |
dc.identifier.issn | 1538-4357 | |
dc.identifier.ris | TY - Journal Article AU - Gupta, Ravi R AU - D’Andrea, Chris B AU - Sako, Masao AU - Conroy, Charlie AU - Smith, Mathew AU - Bassett, Bruce AU - Frieman, Joshua A AU - Garnavich, Peter M AU - Jha, Saurabh W AU - Kessler, Richard AU - Lampeitl, Hubert AU - Marriner, John AU - Nichol, Robert C AU - Schneider, Donald P AB - We improve estimates of the stellar mass and mass-weighted average age of Type Ia supernova (SN Ia) host galaxies by combining UV and near-IR photometry with optical photometry in our analysis. Using 206 SNe Ia drawn from the full three-year Sloan Digital Sky Survey (SDSS-II) Supernova Survey (median redshift of z 0.2) and multi-wavelength host-galaxy photometry from SDSS, the Galaxy Evolution Explorer, and the United Kingdom Infrared Telescope Infrared Deep Sky Survey, we present evidence of a correlation (1.9σ confidence level) between the residuals of SNe Ia about the best-fit Hubble relation and the mass-weighted average age of their host galaxies. The trend is such that older galaxies host SNe Ia that are brighter than average after standard light-curve corrections are made. We also confirm, at the 3.0σ level, the trend seen by previous studies that more massive galaxies often host brighter SNe Ia after light-curve correction. DA - 2011 DB - OpenUCT DP - University of Cape Town IS - 2 J1 - The Astrophysical Journal LK - https://open.uct.ac.za PY - 2011 SM - 0004-637X SM - 1538-4357 T1 - Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties TI - Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties UR - http://hdl.handle.net/11427/34964 ER - | en_ZA |
dc.identifier.uri | http://hdl.handle.net/11427/34964 | |
dc.identifier.vancouvercitation | Gupta RR, , Sako M, Conroy C, Smith M, Bassett B, et al. Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties. The Astrophysical Journal. 2011;740(2):92 - 177. http://hdl.handle.net/11427/34964. | en_ZA |
dc.language.iso | eng | |
dc.publisher.department | Department of Mathematics and Applied Mathematics | |
dc.publisher.faculty | Faculty of Science | |
dc.source | The Astrophysical Journal | |
dc.source.journalissue | 2 | |
dc.source.journalvolume | 740 | |
dc.source.pagination | 92 - 177 | |
dc.source.uri | https://dx.doi.org/10.1088/0004-637X/740/2/92 | |
dc.subject.other | astrophysics | |
dc.subject.other | cosmology and astronomy | |
dc.subject.other | classical and quantum mechanics | |
dc.subject.other | general physics | |
dc.subject.other | cosmology | |
dc.subject.other | galaxies | |
dc.subject.other | photometry | |
dc.subject.other | sky | |
dc.subject.other | supernovae | |
dc.subject.other | telescopes astrophysics | |
dc.title | Improved constraints on type Ia supernova host galaxy properties using multi-wavelength photometry and their correlations with supernova properties | |
dc.type | Journal Article | |
uct.type.publication | Research | |
uct.type.resource | Journal Article |
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