skip to content
 

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.

ASCA Guest Observer Facility

SIS: Castor/YY Gem

YY Gem

Image Credit: Dr. Eric V. Gotthelf, USRA/GSFC/NASA

ASCA SIS images of the Castor/YY Gem multiple star system, separated by ~70 arcsec. The bottom row shows the smoothed images, while the top row shows the reconstructed images, after taking out most of the blurring caused by the ASCA mirrors using the Lucy-Richardson method. Normally (middle column), YY Gem is much brighter than Castor in X-rays. However, we observed flares from YY Gem (right) and Castor (left); during the latter, Castor became brighter than YY Gem.


This file was last modified on Tuesday, 29-May-2001 16:18:36 EDT
Curator: Michael Arida (SP Sys); arida@milkyway.gsfc.nasa.gov
HEASARC Guest Observer Facility


If you have any questions concerning ASCA, visit our Feedback form.

This file was last modified on Tuesday, 29-May-2001 16:18:36 EDT

NASA Astrophysics

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

    ASCA Project Scientist: Dr. Nicholas E. White

    Responsible NASA Official: Dr. Andy Ptak

    Privacy Policy and Important Notices.