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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


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

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