Preliminary Infrared Light Curves of Supernovæ at z ≈ 0.5

Details Preliminary Infrared Light Curves of Supernovæ at z ≈ 0.5 Preliminary Infrared Light Curves of Supernovæ at z ≈ 0.5

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20112307h&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #123.07; Bulletin of the American Astronomical Society, Vol. 34, p.1306

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present J-band light curves of seven Type Ia supernovæ located at redshifts of approximately 0.5. These supernovæ were observed during the High-z Supernova Search Team's autumn 2000 campaign. At this redshift the observed J-band light curve approximately corresponds to the rest-frame I band, so a direct comparison can be made between local and high-redshift Type Ia supernovæ at wavelengths where the effects of interstellar extinction are small. The goal of this study is to compare Type Ia supernovæ at z ≈ 0 and z ≈ 0.5 in order to identify possible systematic differences that could cloud our understanding of the acceleration of the Universe. S.T.H. and P.M.G acknowledge support from NASA Long-Term Space Astrophysics grand NAG 5-9364.

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