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Questions About High-Energy (X-ray & Gamma-Ray)
Astronomy
How are the X-ray and gamma-ray energy bands
defined?
What are the energy bands for the other various types
of electromagnetic radiation?
How many individual
X-ray sources are known currently?
How has the number grown since the first cosmic X-ray astronomical observations
in 1962?
How do the sensitivity & angular
resolution of current X-ray telescopes compare with previous ones?
What kinds of cosmic objects
are X-ray emitters?
What are the brightest objects in the X-ray
sky?
How many individual gamma-ray sources are
known currently?
How has their number grown since the first gamma-ray astronomical observations
in 1970?
How do the numbers of
catalogued X-ray & gamma-ray sources compare with other energies?
How much X-ray and gamma-ray data are in
the HEASARC's archive?
Please send information concerning
dates/deadlines not currently included on this page and/or corrections to:
Stephen.A.Drake @ nasa.gov
Web page maintainer: Stephen A. Drake
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Last modified: Monday, 28-Jul-2008 09:17:29 EDT
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