Scientific Results

There have been many achievments in the ASCA program including

(1) Gravitational effect of massive black hole

(2) Identification of particle acceleration sites

(3) The origin of cosmic X-ray background

(4) Signature of black hole in our galaxy

(5) Explanation of chemical evolution in the universe

(6) Discovery of a dark cluster of galaxies

(7) Distribution and total mass of dark matter

(8) Evolution of X-ray celestial bodies and deep space

(9) X-ray observation of supernova explosion

(10) Rich environment in supernova remnant Cas A

ISAS/JAXA Department of High Energy Astrophysics