Photospheric abundances of oxygen, neon, and argon derived from the XUV spectrum of an impulsive flare

1990 ◽  
Vol 363 ◽  
pp. 292 ◽  
Author(s):  
U. Feldman ◽  
K. G. Widing
Keyword(s):  
Impulsive Flare

A multiwavelength study of a double impulsive flare

Solar Physics ◽  
1984 ◽  
Vol 91 (2) ◽  
pp. 325-344 ◽  
Author(s):  
K. T. Strong ◽  
A. O. Benz ◽  
B. R. Dennis ◽  
J. W. Leibacher ◽  
R. Mewe ◽  
...  
Keyword(s):  
Impulsive Flare

scholarly journals X-ray Observations of the dMe Star EQ1839.6+8002 in 1980-1993

1995 ◽  
Vol 151 ◽  
pp. 171-174
Author(s):  
H.C. Pan ◽  
C. Jordan ◽  
K. Makishima ◽  
R.A. Stern ◽  
K. Hayashida ◽  
...  
Keyword(s):  
X Ray ◽  
Impulsive Flare

During Ginga observations of galaxy 3C390.3 on 1991 February 14, a large impulsive flare was detected between 22:30-23:00 UT (Inda et al. 1994). Inda et al. (1994) suggested that the flare was associated with EQ1839.6+8002, an M4Ve star at a distance of 15.2 pc (Fleming et al. 1988). The star has been observed previously with the Einstein IPC and EXOSAT LE (Gioia et al. 1990; Grommi et al. 1991), and more recently with the ROSAT PSPC.In this paper we present the results of an analysis of the observations of EQ1839.6+8002 with Ginga and of the data obtained with the Einstein IPC (between 1980 January and May), the EXOSAT LE (in 1984-1986), and the ROSAT PSPC instruments (in 1991 March, 1992 April and 1993 April).

Hot and Superhot Plasmas above an Impulsive Flare Loop

1997 ◽  
Vol 478 (2) ◽  
pp. 787-798 ◽  
Author(s):  
Saku Tsuneta ◽  
Satoshi Masuda ◽  
Takeo Kosugi ◽  
Jun Sato
Keyword(s):  
Flare Loop ◽  
Impulsive Flare

scholarly journals Solar flare soft X-ray spectra from Diogeness observations

2015 ◽  
Vol 11 (S320) ◽  
pp. 109-111
Author(s):  
Marek Stȩślicki ◽  
Janusz Sylwester ◽  
Barbara Sylwester ◽  
Żaneta Szaforz ◽  
Zbigniew Kordylewski ◽  
...  
Keyword(s):  
Solar Flare ◽  
Operation Time ◽  
Diagnostic Information ◽  
Emission Lines ◽  
Crystal Spectrometer ◽  
Quartz Crystals ◽  
X Ray ◽  
Plasma Characteristics ◽  
Spectral Channels ◽  
Impulsive Flare

AbstractDiogeness was an uncollimated scanning flat crystal spectrometer observing solar flare X-ray spectra in four narrow wavelength bands in the vicinity of Ca xix, S xv and Si xiii He-like line ‘triplets’ around 3.18 Å, 5.04 Å and 6.65 Å. In two of the spectral channels, emission lines around the Ca xix 3.178 Å resonance line were scanned in opposite directions, being diffracted from precisely adjusted identical Quartz crystals mounted on a common shaft in a so-called Dopplerometer (tachometer) configuration. Observations of solar X-ray spectra made by Diogeness provide a direct diagnostic information on plasma characteristics during the impulsive flare energy release. We present a sample of events which occurred during the Diogeness operation time from August 16, 2001 to September 17, 2001.

High‐Cadence Observations of an Impulsive Flare

2000 ◽  
Vol 542 (2) ◽  
pp. 1080-1087 ◽  
Author(s):  
Haimin Wang ◽  
Jiong Qiu ◽  
Carsten Denker ◽  
Tom Spirock ◽  
Hangjun Chen ◽  
...  
Keyword(s):  
High Cadence ◽  
Impulsive Flare

A New Phenomenon in Impulsive‐Flare‐Associated Energetic Particles

2007 ◽  
Vol 669 (1) ◽  
pp. 615-620 ◽  
Author(s):  
E. E. Chollet ◽  
J. Giacalone ◽  
J. E. Mazur ◽  
M. Al Dayeh
Keyword(s):  
Energetic Particles ◽  
Impulsive Flare
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