Tests of the accelerating universe with near-infrared observations of a high-redshift type Ia supernova
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]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal Letters|
|Access Rights:||Open Access|
|TMP1010482162022122114615.pdf||90.89 kB||Adobe PDF|
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