The limb flare of 1980 April 30 as seen by the hard X-ray imaging spectrometer

1981 ◽  
Vol 244 ◽  
pp. L157 ◽  
Author(s):  
H. F. van Beek ◽  
C. de Jager ◽  
A. Schadee ◽  
Z. Svestka ◽  
A. Boelee ◽  
...  
Keyword(s):  
Imaging Spectrometer ◽  
X Ray ◽  
X Ray Imaging ◽  
Limb Flare

scholarly journals Discovery of recombining plasma inside the extended gamma-ray supernova remnant HB9

2019 ◽  
Vol 489 (3) ◽  
pp. 4300-4310 ◽  
Author(s):  
A Sezer ◽  
T Ergin ◽  
R Yamazaki ◽  
H Sano ◽  
Y Fukui
Keyword(s):  
Supernova Remnant ◽  
Gamma Ray ◽  
Radio Continuum ◽  
Continuum Emission ◽  
Large Area ◽  
Imaging Spectrometer ◽  
X Ray ◽  
East Region ◽  
X Ray Imaging ◽  
Collisional Ionization

ABSTRACT We present the results from the Suzaku X-ray Imaging Spectrometer observation of the mixed-morphology supernova remnant (SNR) HB9 (G160.9+2.6). We discovered recombining plasma (RP) in the western Suzaku observation region and the spectra here are well described by a model having collisional ionization equilibrium (CIE) and RP components. On the other hand, the X-ray spectra from the eastern Suzaku observation region are best reproduced by the CIE and non-equilibrium ionization model. We discuss possible scenarios to explain the origin of the RP emission based on the observational properties and concluded that the rarefaction scenario is a possible explanation for the existence of RP. In addition, the gamma-ray emission morphology and spectrum within the energy range of 0.2–300 GeV are investigated using 10 yr of data from the Fermi Large Area Telescope (LAT). The gamma-ray morphology of HB9 is best described by the spatial template of radio continuum emission. The spectrum is well fit to a log-parabola function and its detection significance was found to be 25σ. Moreover, a new gamma-ray point source located just outside the south-east region of the SNR’s shell was detected with a significance of 6σ. We also investigated the archival H i and CO data and detected an expanding shell structure in the velocity range of $-10.5$ and $+1.8$ km s−1 that is coinciding with a region of gamma-ray enhancement at the southern rim of the HB9 shell.

X-ray imaging of a solar limb flare on 1982 January 22

Solar Physics ◽  
1986 ◽  
Vol 107 (1) ◽  
pp. 109-121 ◽  
Author(s):  
T. Takakura ◽  
K. Tanaka ◽  
N. Nitta ◽  
K. Kai ◽  
K. Ohki
Keyword(s):  
Solar Limb ◽  
X Ray ◽  
X Ray Imaging ◽  
Limb Flare

High-energy x-ray imaging spectrometer (HEXIS)

1998 ◽  
Author(s):  
James L. Matteson ◽  
Duane E. Gruber ◽  
William A. Heindl ◽  
Michael R. Pelling ◽  
Laurence E. Peterson ◽  
...  
Keyword(s):  
High Energy ◽  
Imaging Spectrometer ◽  
X Ray ◽  
X Ray Imaging

scholarly journals A multiple monochromatic X-ray imaging spectrometer based on flat Bragg mirror

2009 ◽  
Vol 58 (9) ◽  
pp. 6397
Author(s):  
Hu Xin ◽  
Zhang Ji-Yan ◽  
Yang Guo-Hong ◽  
Liu Shen-Ye ◽  
Ding Yong-Kun
Keyword(s):  
Imaging Spectrometer ◽  
Bragg Mirror ◽  
X Ray ◽  
X Ray Imaging

CCD soft X-ray imaging spectrometer for the ASCA satellite

1994 ◽  
Vol 41 (1) ◽  
pp. 375-385 ◽  
Author(s):  
B.E. Burke ◽  
R.W. Mountain ◽  
P.J. Daniels ◽  
M.J. Cooper ◽  
V.S. Dolat
Keyword(s):  
Imaging Spectrometer ◽  
X Ray ◽  
X Ray Imaging

Progress in x-ray CCD sensor performance for the Astro-E2 x-ray imaging spectrometer

2004 ◽  
Author(s):  
Mark W. Bautz ◽  
Steven E. Kissel ◽  
Gregory Y. Prigozhin ◽  
Beverly LaMarr ◽  
Barry E. Burke ◽  
...  
Keyword(s):  
Imaging Spectrometer ◽  
X Ray ◽  
Sensor Performance ◽  
Ccd Sensor ◽  
X Ray Imaging
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