Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.8211y&link_type=abstract
American Astronomical Society Meeting 203, #82.11; Bulletin of the American Astronomical Society, Vol. 35, p.1335
Astronomy and Astrophysics
Astronomy
3
Scientific paper
We have carried out a series of very high redshift supernova searches (z > 0.9 with i' = 23.8 to 25.2 at discovery) with Subaru/Suprime-Cam. Suprime-Cam is the widest field imaging camera on 8-10m class telescopes and has a FOV of 33 x 26 arcmin. Searches have been performed for 3 seasons; spring 2001, spring 2002, fall 2002 and the searched area has been 4, 7, and 5 fields, respectively. The number of candidates discovered is 106 in total and 27 are confirmed to be supernovae by spectroscopic observation (and an additional 5 have been confirmed by good lightcurve sampling). Photometric follow-up observations by HST WFPC2 and ACS has been done for 8 of them. Among the supernovae we have discovered, 12 have a redshift greater than 0.9, thus exploring the epoch of deceleration. In the fall 2002 run, with the cooperation of the observatory project (Subaru-XMM Deep Survey) and dedicated scheduling, we also obtained light curves for 16 supernovae from the ground. These studies demonstrate that Subaru/Suprime-Cam has a high efficiency for the discovery of very high redshift supernovae.
Aldering Greg
Amanullah Rahman
Antilogus Pierre
Astier Pierre
Blanc Guillaume
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