Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.3702b&link_type=abstract
American Astronomical Society, HEAD meeting #10, #37.02
Astronomy and Astrophysics
Astrophysics
Scientific paper
The Advanced Compton Telescope (ACT) is a NASA Vision Mission designed to survey the gamma-ray sky with unprecedented sensitivity (about 50 times better than the Compton Observatory or INTEGRAL), probing the fires where chemical elements are formed by performing high-resolution spectroscopy of nuclear gamma rays from extragalactic Type Ia supernovae. Dozens of Type 1A SN per year will be detected in nuclear lines gamma rays from 56-Co and 56-Ni, where no definitive gamma ray observations of these have been achieved at this time. The more intense Type 1A events should enable an understanding of the mechanisms in the white dwarf stars responsible for the explosions. ACT also enables a wealth of other science objectives. It will also study the physics of accretion disks in AGN and Galactic compact objects, particle outflows from black holes, nuclear burning in novae, particle acceleration in solar flares, and global nucleosynthesis revealed in the radioactive Milky Way. It will also achieve very sensitive observations of gamma ray bursts with a broad field-of-view instrument. We will review the ACT science goals and results of the previous concept study, and present the goals of our Astrophysics Strategic Mission Concept Study in preparation for the upcoming Decadal Survey.
ACT Collaboration
Aprile Elena
Boggs Steven E.
Gehrels Neil
Hunter Stanley
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