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Tests of the accelerating universe with near-infrared observations of a high-redshift type Ia supernova

Riess, Adam; Filippenko, Alexei V; Liu, Michael C; Challis, Peter M; Clocchiatti, Alejandro; Diercks, Alan; Garnavich, Peter M; Hogan, Craig; Jha, Saurabh; Kirshner, Robert P; Schmidt, Brian


We have measured the rest-frame B-, V -, and I-band light curves of a high-redshift type Ia supernova (SN Ia), SN 1999Q (z \ 0.46), using the Hubble Space T elescope (HST ) and ground-based near-infrared detectors. A goal of this study is the measurement of the color excess, a sensitive indicator ofEB~I, interstellar or intergalactic dust, which could a†ect recent cosmological measurements from high-redshift SNe Ia. Our observations disfavor a 30% opacity of SN Ia visual light by dust as an...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
Source: Astrophysical Journal Letters
Access Rights: Open Access


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