The Swift Ultra-Violet/Optical Telescope

Details The Swift Ultra-Violet/Optical Telescope The Swift Ultra-Violet/Optical Telescope

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..aprs10003r&link_type=abstract

American Physical Society, April Meeting, 2004, May 1-4, 2004, Denver, Colorado April 2004, MEETING ID: APR04, abstract #S10.003

Physics

Scientific paper

The Ultra-Violet/Optical Telescope (UVOT) is one of three telescopes on board the Swift Gamma-Ray Burst Mission. It supplies the Swift mission with the ability to detect the early UV and optical photons of GRB afterglows. The UVOT is of a modified Ritchey-Chrétien design with MCP intensified CCD detectors that provide sub-arcsecond resolution while operating in both a photon-timing and an imaging mode. A filter wheel accommodates broadband UV and visual filters for determining photometric redshifts in the range of 1.5 < z < 4.4. The filter wheel also houses UV and visual grisms for low-resolution spectroscopy. The UVOT will help answer questions about GRBs such as: how many times has reionization occurred in the Universe; what is the nature of dark bursts; what is the initial Lorentz factor of the fireball; and are there subclasses or new classes of GRBs? This work is sponsored at Penn State by NASA's Office of Space Science through contract NAS5-00136, and at MSSL by funding from PPARC.

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