X-ray observations of SN1987A with Ginga

Conference · Sun Sep 25 04:00:00 EDT 1988 · AIP Conf. Proc.; (United States)

OSTI ID:7068642

Tawara, Y

Continuous observations of the Large Magellanic CLoud region made with Ginga since February 25, 1987 revealed the X-rays with unusual energy spectrum from the region of 0.2 x 0.3 deg/sup 2/ including the supernova SN1987A. The first detection of a significant X-ray flux from SN1987A was detected about 130 days after its explosion. The energy spectrum shows the presence of unusually hard component above 10--15 keV. The light curve shows the relatively large intensity variations in the low energy band of 5.8--16.1 keV, in contrast to small variations in high energy band of 16.1--27.8 keV. About 320 days after the explosion, the SN1987A showed large increase about factor of 6 in 20 days, and they decayed to the half of the peak flux level in 30 days.

• Research Organization: Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464, Japan
• OSTI ID: 7068642
• Report Number(s): CONF-871245-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 170:1
• Country of Publication: United States
• Language: English

Related Subjects

640101 -- Astrophysics & Cosmology-- Cosmic Radiation
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
DATA
ERUPTIVE VARIABLE STARS
EXPERIMENTAL DATA
GALAXIES
INFORMATION
MAGELLANIC CLOUDS
NUMERICAL DATA
SPECTRA
STARS
SUPERNOVAE
VARIABLE STARS
X-RAY SPECTRA