The Caltech Core-Collapse Project (CCCP)

Details The Caltech Core-Collapse Project (CCCP) The Caltech Core-Collapse Project (CCCP)

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.4006g&link_type=abstract

American Astronomical Society Meeting 205, #40.06; Bulletin of the American Astronomical Society, Vol. 36, p.1408

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The cosmological utility of type Ia Supernovae (SNe) prompted numerous studies of these events, and they are now well characterized observationally, both as individual objects and as a population. In contrast, all other types of SNe (i.e., core-collapse events) are not as well observationally characterized. While some individual events have been studied in great detail (e.g., SN 1987A or SN 1998bw), the global properties of the core-collapse SN population are little known. However, in recent years, major drivers for change have emerged, among them the verification of the connection between core-collapse SNe and long-duration Gamma-Ray Bursts (GRBs), the possible utility of some core-collapse SNe (type II-P) as independent cosmological probes, and studies of core-collapse SNe as high redshift targets for missions like SNAP and JWST. The Caltech Core-Collapse Project (CCCP) is a large observational program using the Hale 200'' and the robotic 60'' telescopes at Palomar observatory to obtain optical photometry, spectroscopy and IR photometry of ˜50 nearby core-collapse SNe. The program is designed to provide a complete sample of core-collapse events, with well-defined selection criteria and uniform, high-quality optical/IR observations, as well as radio and X-ray light curves for some events. We will use this sample to characterize the little-studied properties of core-collapse SNe as a population. The sample will be used as a comparison set for studies of SNe associated with Gamma-Ray Bursts, to promote and calibrate the use of SNe II-P for cosmography, and to set the stage for investigations of SNe at high-z using coming space missions. We present CCCP data collected for two of our first SNe as a demonstration. This work is supported in part by a Hubble Fellowship awarded to AG by NASA.

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