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Multi-source connectivity as the driver of solar wind variability in the heliosphere. [PDF]

Nat Astron
Yardley SL, Brooks DH, D'Amicis R, Owen CJ, Long DM, Baker D, Démoulin P, Owens MJ, Lockwood M, Mihailescu T, Coburn JT, Dewey RM, Müller D, Suen GHH, Ngampoopun N, Louarn P, Livi S, Lepri S, Fludra A, Haberreiter M, Schühle U.   +20 more
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Intercalibration of SUMER and CDS on SOHO. I. SUMER detector A and CDS NIS

Applied Optics, 1999
The results of an intercalibration between the extreme ultraviolet spectrometers Coronal Diagnostic Spectrometer (CDS) and Solar Ultraviolet Measurements of Emitted Radiation (SUMER) onboard the Solar and Heliospheric Observatory (SOHO) are presented.
Sami Solanki, Udo H. Schühle, A Pauluhn
exaly   +6 more sources

Polarization sensitivity of the SUMER instrument on SOHO

Applied Optics, 1997
The Solar Ultraviolet Measurements of Emitted Radiation (SUMER) instrument on the Solar and Heliospheric Observatory (SOHO) satellite is sensitive to the state of linear polarization of the incident radiation primarily owing to two optical elements, the holographic grating and the wavelength scan mirror.
D M, Hassler, P, Lemaire, Y, Longval
openaire   +2 more sources

Intercalibration of SUMER and CDS on SOHO III SUMER and CDS-GIS

Applied Optics, 2003
Simultaneous observation of the same solar sources with different instruments is one way to test prelaunch radiometric calibrations and to detect changes in responsivity with time of extreme-ultraviolet instruments in space. Here we present the results of intercalibration of the SUMER (Solar Ultraviolet Measurements of Emitted Radiation) spectrometer ...
Pauluhn, A., Lang, J., Breeveld, E., Solanki, S., Schühle, U.   +4 more
openaire   +2 more sources

Observations of Polar Plumes with the Sumer Instrument on Soho

Solar Physics, 1997
We present new observations of O vi 1032 A line profiles in polar plumes, and inter-plume regions, on the disk and above the limb in the north coronal hole obtained with the SUMER (Solar Ultraviolet Measurements of Emitted Radiation) instrument on the SOHO (Solar and Heliospheric Observatory) spacecraft. On 22 May 1996, a 5 x 5 arc min spectroheliogram
Hassler, D., Wilhelm, K., Lemaire, P., Schühle, U.   +3 more
openaire   +2 more sources

Sonnenradiometrie mit SUMER auf SOHO

Physikalische Blätter, 1997
AbstractAm 2. Dezember 1995 wurde das Sonnenobservatorium SOHO (Solar and Heliospheric Observatory) an Bord einer Atlas‐IIAS‐Rakete vom Cape Canaveral gestartet. Im Februar 1996 erreichte SOHO seine vorgesehene Beobachtungsposition. Bereits seit Januar 1996 liefern die zwölf Instrumente der Raumsonde nahezu ununterbrochen Daten von unserem ...
Hollandt, J., Curdt, W., Schühle, U., Wilhelm, K.   +3 more
openaire   +3 more sources

Intercalibration of SUMER and CDS on SOHO II SUMER detectors A and B and CDS NIS

Applied Optics, 2001
Results of an intercalibration between the extreme-ultraviolet spectrometers Coronal Diagnostic Spectrometer (CDS) and Solar Ultraviolet Measurements of Emitted Radiation (SUMER) on board the Solar and Heliospheric Observatory (SOHO) are reported. The results of the joint observing program Intercal_01 are described, and intercalibration results up to ...
A, Pauluhn, I, Rüedi, S K, Solanki, U, Schühle, K, Wilhelm, J, Lang, W T, Thompson, J, Hollandt   +7 more
openaire   +2 more sources