HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.

Goddard Space Flight Center   Help/FAQ
  What's New
  HEASARC Site Map
  NASA Homepage

HEASARC HOME ROSAT HOME ARCHIVE DATA ANALYSIS PROPOSALS & TOOLS STUDENTS / TEACHERS / PUBLIC
ROSAT Guest Observer Facility
ABOUT ROSAT GOF SERVICES WHAT'S NEW TIMELINES & MISSION INFO RELATED SITES GALLERY

Cluster RXJ0916+1736

ROSAT image RXJ09

Image credit: Max-Planck-Institut für extraterrestrische Physik (MPE)

Large clusters of galaxies containing thousands of galaxies were discovered by ROSAT as prominent X-ray sources. In addition to this, very small groups of galaxies were found as X-ray sources in the ROSAT sky map like the group shown here. It was discovered by Ramella, Geller, and Huchra in the CfA galaxy survey and has a distance of about 500 million light years. The picture is an optical sky photography superimposed with brightness contours of X-rays. Both of the bright eliptical galaxies are seen clearly in the centre of the group.

Curator: Michael Arida (ADNET)
HEASARC Guest Observer Facility

Please use the Feedback link if you have questions on ROSAT.

This file was last modified on Tuesday, 25-Aug-2020 18:01:41 EDT

NASA Astrophysics

  • FAQ/Comments/Feedback
  • Education Resources
  • Download Adobe Acrobat
    		• A service of the Astrophysics Science Division (ASD) at NASA/ GSFC

    ROSAT Project Scientist: Dr. Robert Petre

    Responsible NASA Official: Dr. Andy Ptak

    Privacy Policy and Important Notices.