-
Federal
Swift Gamma-ray Urgent Archiver for Novel Opportunities (GUANO) Events
National Aeronautics and Space Administration —
The Swift Observatory provides event-level data from the Burst Alert Telescope (BAT) on demand in response to transients detected by other observatories/instruments.... -
Federal
ROSAT PSPC 400 Square Degree Galaxy Cluster Catalog
National Aeronautics and Space Administration —
This is a catalog of galaxy clusters detected in a new ROSAT PSPC survey. The survey is optimized to sample, at high redshifts, the mass range corresponding to T >...