A System for Photon-Counting Spectrophotometry of Prompt Optical Emission from Gamma-Ray Bursts

Details A System for Photon-Counting Spectrophotometry of Prompt Optical Emission from Gamma-Ray Bursts A System for Photon-Counting Spectrophotometry of Prompt Optical Emission from Gamma-Ray Bursts

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..662..550v&link_type=abstract

GAMMA-RAY BURST AND AFTERGLOW ASTRONOMY 2001: A Workshop Celebrating the First Year of the HETE Mission. AIP Conference Proceed

Astronomy and Astrophysics

Astronomy

1

Gamma-Ray Sources, Gamma-Ray Bursts, Photometric, Polarimetric, And Spectroscopic Instrumentation, Ground-Based Ultraviolet, Optical And Infrared Telescopes

Scientific paper

With the launch of HETE-2 and the coming launch of the Swift satellite, there will be many new opportunities to study the physics of the prompt optical emission with robotic ground-based telescopes. Time-resolved spectrophotometry of the rapidly varying optical emission is likely to be a rich area for discovery. We describe a program to apply state-of-the-art photon-counting imaging technology to the study of prompt optical emission from gamma-ray bursts. The Remote Ultra-Low Light Imaging (RULLI) project at Los Alamos National Laboratory has developed an imaging sensor which employs stacked microchannel plates and a crossed delay line readout with 200 picosecond photon timing to measure the time of arrival and positions for individual optical photons. RULLI detectors, when coupled with a transmission grating having 300 grooves/mm, can make photon-counting spectroscopic observations with spectral resolution that is an order of magnitude greater and temporal resolution three orders of magnitude greater than the most capable photon-counting imaging detectors that have been used for optical astronomy.

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