{"paper":{"title":"Using Host Galaxy Spectroscopy to Explore Systematics in the Standardisation of Type Ia Supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"A. A. Plazas Malag\\'on, A. Carnero Rosell, A. Duffy, A. K. Romer, A. M\\\"oller, A. Palmese, A. Pieres, B. E. Tucker, B. Flaugher, B. Nichol, C. Flynn, C. Lidman, C. To, D. Brooks, D. Brout, D. Carollo, D. Friedel, D. Gruen, D. Huterer, D. J. James, D. L. Burke, D. L. Hollowood, D. L. Tucker, D. Scolnic, D. W. Gerdes, E. Bertin, E. Sanchez, E. Suchyta, E. Taylor, F. Andrade-Oliveir, F. Menanteau, F. Paz-Chinch\\'on, G. F. Lewis, G. Gutierrez, G. Tarle, I. Ferrero, I. Sevilla-Noarbe, J. Annis, J. Asorey, J. Carretero, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. Mould, K. Glazebrook, K. Honscheid, K. Kuehn, L. Galbany, L. Kelsey, L. N. da Costa, M. Aguena, M. Carrasco Kind, M. Costanzi, M. Dixon, M. E. S. Pereira, M. Gatti, M. March, M. Rodriguez-Monroy, M. Smith, M. Soares-Santos, M. Sullivan, M. Vincenzi, N. Kuropatkin, P. Doel, P. Wiseman, R. Kessler, R. L. C. Ogando, R. Miquel, R. Morgan, S. Allam, S. Bocquet, S. Everett, S. R. Hinton, T. M. C. Abbott, T. M. Davis, T. N. Varga, U. Malik, V. Scarpine","submitted_at":"2022-06-24T05:37:51Z","abstract_excerpt":"We use stacked spectra of the host galaxies of photometrically identified type Ia supernovae (SNe Ia) from the Dark Energy Survey (DES) to search for correlations between Hubble diagram residuals and the spectral properties of the host galaxies. Utilising full spectrum fitting techniques on stacked spectra binned by Hubble residual, we find no evidence for trends between Hubble residuals and properties of the host galaxies that rely on spectral absorption features ($< 1.3\\sigma$), such as stellar population age, metallicity, and mass-to-light ratio. However, we find significant trends between "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.12085","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.12085/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}