| [Edit]
ASCA (formerly named ASTRO-D) is Japan's fourth cosmic X-ray astronomy mission, and the second for which the United States is providing part of the scientific payload. The satellite was successfully launched February 20, 1993. After 8 years of observation, its altitude control was lost in 2000, and it re-entered to atmosphere in 2001.
top
Highlights
Broad Fe lines from AGN, probing the strong gravity near the central engine
Lower than solar Fe abundance in the coronae of active stars
Non-thermal X-rays from SN 1006, a site of Cosmic Ray acceleration
|
|
