A. I. Stepanov

Lomonosov Moscow State University

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J. Sylwester

Centrum Badań Kosmicznych

K. J. H. Phillips

Natural History Museum

B. Sylwester

Centrum Badań Kosmicznych

J. L. Culhane

University College London

C. M. Brown

United States Naval Research Laboratory

M. Siarkowski

Centrum Badań Kosmicznych

J. Lang

Iowa State University

V. A. Slemzin

P.N. Lebedev Physical Institute of the Russian Academy of Sciences

Z. Kordylewski

Centrum Badań Kosmicznych

W. Trzebiński

Centrum Badań Kosmicznych

Cooperative Institutions

P.N. Lebedev Physical Institute of the Russian Academy of Sciences

Russian Academy of Sciences

Centrum Badań Kosmicznych

Polish Academy of Sciences

Lomonosov Moscow State University

Astronomical Institute of the Slovak Academy of Sciences

Moscow State University

Institute of Terrestrial Magnetism Ionosphere and Radio Wave Propagation

University College London

United States Naval Research Laboratory

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X-ray Flare Spectra from the DIOGENESS Spectrometer and Its Concept Applied to ChemiX on the Interhelioprobe Spacecraft

Solar Physics (2015)

J. Sylwester Z. Kordylewski S. Płocieniak M. Siarkowski Mirosław Kowaliński

The DIOGENESS X-ray crystal spectrometer on the CORONAS-F spacecraft operated only for a single month (25 August to 17 September) in 2001, but in its short lifetime obtained one hundred and forty high-resolution spectra of eight solar flares with GOES importance ranging from C9 to X5. The instrument included four scanning flat crystals with wavelength ranges covering the regions of Si xiii (6.65 Å), S xv (5.04 Å), and Ca xix (3.18 Å) X-ray lines and associated dielectronic satellites. Two crystals covering the Ca xix lines were oriented in a “dopplerometer” manner, i.e. such that spatial and spectral displacements, both of which commonly occur in flares, can be separated. We describe the DIOGENESS spectrometer and the spectra obtained during flares that include lines not hitherto seen from spacecraft instruments. An instrument with a very similar concept is currently being built for the two Russian Interhelioprobe spacecraft that are scheduled for launch in 2020 and 2022 and will make a near-encounter (perihelion ∼ 0.3 AU) with the Sun in its orbit. We outline the results that are likely to be obtained.

Solar flare

Flare

Imaging spectrometer

Spectral resolution

10.1007/s11207-014-0644-1

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Citations (18)

Element and Isotopic Anomalies in Peat from the Tunguska Explosion (1908) Area are Probably Traces of Cometary Matter

Meteoritics and Planetary Science Supplement (1998)

E. M. Kolesnikov A. I. Stepanov E. A. Gorid'Ko N. V. Kolesnikova

Source

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Citations (5)

Analysis of potassium abundance in a large number of flares

Advances in Space Research (2005)

J. Sylwester B. Sylwester K. J. H. Phillips J. L. Culhane C. M. Brown

Solar flare

10.1016/j.asr.2005.08.026

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Citations (5)

On oscillations in prominences

Springer eBooks (2005)

L. Gheonjian V. Yu. Klepikov A. I. Stepanov

Solar prominence

10.1007/bfb0025674

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Citations (0)

Solar origins of intense geomagnetic storms in 2002 as seen by the CORONAS-F satellite

Advances in Space Research (2005)

O. Panasenco I. S. Veselovsky А. В. Дмитриев A. N. Zhukov O. S. Yakovchouk

Space Weather

Solar flare

10.1016/j.asr.2005.08.029

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Citations (2)

Resik: A Bent Crystal X-ray Spectrometer for Studies of Solar Coronal Plasma Composition

Solar Physics (2005)

J. Sylwester I. Gaicki Z. Kordylewski Mirosław Kowaliński S. Nowak

Solar flare

Imaging spectrometer

Flare

Solar maximum

10.1007/s11207-005-6392-5

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Citations (85)

CORONAS-F observations of active phenomena on the sun

Advances in Space Research (2003)

V. N. Oraevsky Igor I Sobel'man I. A. Žitnik В. Д. Кузнецов A. I. Stepanov

Photometer

Solar flare

Corona (planetary geology)

Extreme ultraviolet

Imaging Spectroscopy

10.1016/s0273-1177(03)00935-9

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Citations (14)

Dynamic 10 MK plasma structures observed in monochromatic full-Sun images by the SPIRIT spectroheliograph on the CORONAS-F mission

Monthly Notices of the Royal Astronomical Society (2003)

I. A. Zhitnik O. I. Bugaenko A. P. Ignat’ev В. В. Крутов S. V. Kuzin

High-resolution temporal series of monochromatic full-Sun images in the L Mg xii emission line at 8.42 Å have been obtained by the SPectroheliographIc X-Ray Imaging Telescope (SPIRIT) spectroheliograph on the CORONAS-F satellite. For a six-month period since the launch on 2001 July 31 more than 10 000 Mg xii images were recorded. The images revealed plasma structures with the temperature in the range 3–20 MK characterized by specific shape and dynamics, different to that of relatively low temperature (1–2 MK) plasma. The main remarkable features of the phenomena first seen in the monochromatic images are as follows: (1) high spatial variability in brightness with the contrast of more than two orders of magnitude, (2) the presence of some compact sources with high altitude locations up to 0.3 solar radius and well-distinguished 'spider'-like forms, (3) substantially different variability in dynamical behaviour characterized by lifetimes from minutes to days. Sporadic condensations of coronal plasma with log Ne≈ 10 and peak temperature of about 10 MK were observed in the vicinity of active region systems.

Monochromatic color

10.1046/j.1365-8711.2003.06014.x

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Citations (41)