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Title: Overview of the nearby supernova factory

Overview of the nearby supernova factory The Nearby Supernova Factory (SNfactory) is an international experiment designed to lay the foundation for the next generation of cosmology experiments (such as CFHTLS, wP, SNAP and LSST) which will measure the expansion history of the Universe using Type Ia supernovae. The SNfactory will discover and obtain frequent lightcurve spectrophotometry covering 3200-10000 {angstrom} for roughly 300 Type Ia supernovae at the low-redshift end of the smooth Hubble flow. The quantity, quality, breadth of galactic environments, and homogeneous nature of the SNfactory dataset will make it the premier source of calibration for the Type Ia supernova width-brightness relation and the intrinsic supernova colors used for K-correction and correction for extinction by host-galaxy dust. This dataset will also allow an extensive investigation of additional parameters which possibly influence the quality of Type Ia supernovae as cosmological probes. The SNfactory search capabilities and follow-up instrumentation include wide-field CCD imagers on two 1.2-m telescopes (via collaboration with the Near Earth Asteroid Tracking team at JPL and the QUEST team at Yale), and a two-channel integral-field-unit optical spectrograph/imager being fabricated for the University of Hawaii 2.2-m telescope. In addition to ground-based follow-up, UV spectra for a subsample of these supernovae will be obtained with HST. more » The pipeline to obtain, transfer via wireless and standard internet, and automatically process the search images is in operation. Software and hardware development is now underway to enable the execution of follow-up spectroscopy of supernova candidates at the Hawaii 2.2-m telescope via automated remote control of the telescope and the IFU spectrograph/imager. « less
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Publication Date:
OSTI Identifier:OSTI ID: 842492
Report Number(s):LBNL--51173
R&D Project: 366247; TRN: US0503204
DOE Contract Number:AC03-76SF00098
Resource Type:Conference
Resource Relation:Conference: Astronomical Telescopes and Instrumentation, Waikoloa, HI, 22-28 August 2002
Research Org:Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Org:USDOE Director. Office of Science. Office of Advanced Scientific Computing Research, Laboratory Directed Research and Development Program; Centre National de La Recherche Scientifique. Institut National de Physique Nucleaire et de Physique des Particules, Institut National des Sciences de l'Univers, Programme National de Cosmology
Country of Publication:United States
Language:English
Subject: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASTEROIDS; CALIBRATION; COSMOLOGY; HAWAII; INTERNET; PIPELINES; PROBES; REMOTE CONTROL; SPECTRA; SPECTROPHOTOMETRY; SPECTROSCOPY; SUPERNOVAE; TELESCOPES; UNIVERSE