- SkyView - An easy-to-use
tool that returns digital images of the sky in any waveband from radio
through to gamma rays
- VAO DataScope - Query catalogs and services from
the HEASARC and from around the world using a single form
- Literature - Links to literature
search engines and online versions of refereed journals and science
Newly Renamed Swift Mission Spies a Comet Slowdown (13 Jan 2018)
The Gehrels Swift Observatory has captured an unprecedented
change in the rotation of a comet. Images taken in May 2017 reveal
that comet 41P/Tuttle-Giacobini-Kresak was spinning
three times more slowly than it was in March, when it was observed by the
Discovery Channel Telescope at Lowell Observatory, according to
et al. (2018, Nature, 553, 186.
Swift Renamed to the Neil Gehrels Swift Observatory (13 Jan 2018)
In honor of Neil Gehrels (October 3, 1952 - February 6, 2017), who helped
develop the mission and served as its principal investigator until his death
the Swift Gamma-Ray Burst Explorer has officially been renamed the Neil
Gehrels Swift Observatory.
Swift CALDB Data updated (13 Jan 2018)
The Swift SC clock correction has been updated (CALDB update version 20180103).
NICER/SEXTANT proves pulsars can function as a celestial GPS (12 January 2018)
"NASA test proves pulsars can function as a celestial GPS", published in Nature, discusses how NICER/SEXTANT for the first time demonstrated in-space navigation using X-ray pulsars as a form of a Galactic Positioning System. This method will help spacecraft autonomously steer themselves through deep space. These results were featured in a
press conference at the 231st Meeting of the AAS, in Washington DC.
Preliminary Fermi LAT 8-year Point Source List Available (05 Jan 2018)
A preliminary Fermi LAT 8-year Point Source List (FL8Y), based on the first eight years of science data from the Fermi Gamma-ray Space Telescope mission and the 100 MeV-1 TeV range has been released by the Fermi project. The FL8Y source list has twice as much exposure as the 3FGL, and includes a number of analysis improvements, but does not use an updated model for Galactic diffuse gamma-ray emission. The FL8Y source list includes 5524 sources above 4-sigma significance, and includes source location regions and spectral properties.
General Catalog of Variable Stars, Version 5.1, March 2017 (03 Jan 2018)
The latest version of this catalog of 52,011 confirmed variable
stars (from Samus
et al. 2017, ARep, 61, 80) is now available in Browse and
[What is this?]