GINGA X-ray observations of two gamma-ray burst error boxes
Author
Japanese:
Murakami, T.,
Nishimura, J.,
河合 誠之,
Cooke, B. A.,
Katoh, M..
English:
Murakami, T.,
Nishimura, J.,
Kawai, N.,
Cooke, B. A.,
Katoh, M..
Language
English
Journal/Book name
Japanese:
English:
Astronomy and Astrophysics
Volume, Number, Page
Vol. 227
pp. 451-455
Published date
Jan. 1990
Publisher
Japanese:
English:
Conference name
Japanese:
English:
Conference site
Japanese:
English:
Abstract
The error boxes of two gamma-ray burst sources, SGR 1806-20 and GB 811016, have been observed with the Ginga X-ray astronomy satellite in a search for steady X-ray emission components. Upper limits of about 10 to the -11th erg/sq cm per sec in the energy range 1.1-10 keV for a blackbody spectrum has been set for them. These two gamma-ray burst sources were chosen as the most likely targets for a steady X-ray component because one of them (SGR 1806-20) bursts repeatedly, indicating an active phase, and the other (GB 811016) produced a burst with one of the largest fluences ever recorded. The high flux of this burst suggests that it is close to the earth.