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Local host galaxy properties of type Ia supernovae from the Nearby SuperNovae Factory

Abstract : Type Ia supernovae are key tools to study accelerating expansion of the Universe. However despite active research, physics of such objects remain uncertain. To better understand potential systematics we investigate on local host galaxy properties. In this preliminary analysis, we find gas derived quantities such as metallicity and star formation rate compatible to those present in literature. Finally we show a relationship between SALT2 color and x_1 with star formation activity.
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http://hal.in2p3.fr/in2p3-00763308
Contributor : Dominique Girod <>
Submitted on : Monday, December 10, 2012 - 3:02:50 PM
Last modification on : Friday, April 10, 2020 - 5:23:37 PM

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M. Rigault, Y. Copin, G. Aldering, P. Antilogus, C. Aragon, et al.. Local host galaxy properties of type Ia supernovae from the Nearby SuperNovae Factory. Journées 2011 de la Société Française d'Astronomie & d'Astrophysique (SF2A), Jun 2011, Paris, France. pp.179-183. ⟨in2p3-00763308⟩

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