Hard X-ray imaging of a solar limb flare with the x-ray telescope aboard the Hinotori satellite

Journal Article · Fri Jul 15 04:00:00 EDT 1983 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/184075· OSTI ID:5542582

Takakura, T; Tsuneta, S; Ohki, K; Nitta, N; Makishima, K; Murakami, T; Ogawara, Y; Oda, M; Miyamoto, S

An intense solar X-ray burst occurred on 1981 April 27 at the solar limb. The X-ray images of this burst were observed with the hard X-ray telescope (17--50 keV) aboard the satellite Hinotori. The centroid of images was located in the corona 1.4 x 10/sup 4/ km above the photosphere throughout the increasing phase (about 15 minutes) of this strong burst without much change in its size of about 20'' (FWHM). A weak subordinate source 5 x 10/sup 4/ km apart from the main source was also located in the corona 3 x 10/sup 4/ km above the photosphere, and it exhibited a change in relative intensity.

• Research Organization: Department of Astronomy, University of Tokyo
• OSTI ID: 5542582
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 270:2; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
HARD X RADIATION
IMAGES
IONIZING RADIATIONS
MEASURING INSTRUMENTS
RADIATION DETECTORS
RADIATIONS
SOLAR ACTIVITY
SOLAR CORONA
SOLAR FLARES
SOLAR X-RAY BURSTS
SPECTRA
X RADIATION
X-RAY SPECTRA