Zobrazeno 1 - 10
of 30
pro vyhledávání: '"H. S. Ogawa"'
Publikováno v:
Advances in Space Research. 29:1963-1968
The SOHO Solar EUV Monitor has been in operation since December 1995 onboard the SOHO spacecraft. This instrument is a highly stable transmission grating solar extreme ultraviolet spectrometer. It has made nearly continuous full disk solar irradiance
Autor:
F. M. Ipavich, P. Gangopadhyay, Berndt Klecker, Peter Wurz, Eberhard Möbius, H. S. Ogawa, Martin Hilchenbach, Antoinette B. Galvin, Fritz Gliem, Darrell L. Judge, Peter Bochsler, H. Grünwaldt, D. Hovestadt, D. R. McMullin
Publikováno v:
Scopus-Elsevier
The Solar and Heliospheric Observatory (SOHO) spacecraft located at L1 is well outside the Earth's magnetosphere and has been observing the Sun continuously since December 1995, except for relatively brief periods due to spacecraft operational interr
Publikováno v:
Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science. 25:417-420
The CELIAS/SEM spectrometer aboard SoHO continuously monitors the full disk solar EUV and XUV irradiance. The instrumental noise level of the SEM is less than 0.5% of the signal in all channels, hence the short term signal variations larger than this
Publikováno v:
Journal of Geophysical Research: Space Physics. 104:28321-28324
A transmission grating extreme ultraviolet (EUV) spectrometer, nominally identical to the Charge, Element, and Isotope Analysis System/Solar EUV Monitor (CELIAS/SEM) instrument on the Solar and Heliospheric Observatory (SOHO), has obtained accurate m
Autor:
Darrell L. Judge, Martin Hilchenbach, Y. Litvinenko, M. R. Aellig, Martin A. Lee, Peter Bochsler, H. Grüwaldt, H. S. Ogawa, F. M. Ipavich, Berndt Klecker, A. T. Bogdanov, Eberhard Möbius
Publikováno v:
Geophysical Research Letters. 26:3181-3184
He+ pickup ions as observed with SOHO CELIAS CTOF have been analyzed for the time period DOY 160–190, 1996. During this time of the year the Earth is on the upwind side of the interstellar gas flow with respect to the sun. The high-speed cut-off in
Autor:
Marcia Neugebauer, W. I. Axford, Reinald Kallenbach, Martin Hilchenbach, Antoinette B. Galvin, M. A. Lee, Fritz Gliem, E. Marsch, J. Geiss, K. C. Hsieh, Berndt Klecker, Eberhard Möbius, George Gloeckler, Manfred Scholer, Peter Wurz, Stefano Livi, K.-U. Reiche, A. Bürgi, H. Grünwaldt, Hans Balsiger, D. J. Judge, Peter Bochsler, Harald Kucharek, H. S. Ogawa, Michael A. Coplan, B. Wilken, F. M. Ipavich, M. I. Verigin, D. Hovestadt, G. G. Managadze
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:26805-26812
Solar wind abundance ratios of magnesium isotopes measured with the high resolution Mass Time-of-Flight spectrometer (MTOF) of the Charge, Element, and Isotope Analysis System (CELIAS) experiment on board the Solar and Heliospheric Observatory (SOHO)
Autor:
Reinald Kallenbach, Eberhard Möbius, K.-U. Reiche, D. Hovestadt, M. I. Verigin, G. G. Managadze, Martin Hilchenbach, A. Bürgi, B. Wilken, Antoinette B. Galvin, H. Grünwaldt, W. I. Axford, S. Hefti, P. Laeverenz, E. Marsch, Stefano Livi, Peter Wurz, Martin A. Lee, Hans Balsiger, K. C. Hsieh, H. S. Ogawa, George Gloeckler, Manfred Scholer, Marcia Neugebauer, Michael A. Coplan, Johannes Geiss, Darrell L. Judge, Fritz Gliem, W. Bornemann, F. M. Ipavich, Berndt Klecker, Peter Bochsler
Publikováno v:
The Astrophysical Journal. 503:916-922
The High-Energy Suprathermal Time-of-Flight sensor (HSTOF) of the Charge, Element, and Isotope Analysis System (CELIAS) on the Solar and Heliospheric Observatory (SOHO) near the Lagrangian point L1 is capable of identifying energetic hydrogen atoms (
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:1-6
The CELIAS/SEM photodiode spectrometer aboard SOHO continuously monitors the full-disk EUV solar irradiance in an 8-nm wavelength band centered at 30.4 nm (first order), and in a broad wavelength band between 0.1 and 77 nm (central order). We present
Publikováno v:
Journal of Geophysical Research: Space Physics. 102:11557-11566
A method of directly measuring the absolute helium photoionization rate coefficient independent of detailed solar EUV spectra and photoionization cross sections has been demonstrated. Three such measurements were obtained using windowless rare-gas io
Autor:
George Gloeckler, Manfred Scholer, Martin Hilchenbach, P. Laeverenz, Reinald Kallenbach, J. Geiss, B. Wilken, Berndt Klecker, J. Fischer, H. S. Ogawa, Peter Wurz, W. I. Axford, Eberhard Möbius, Antoinette B. Galvin, F. M. Ipavich, Michael A. Coplan, Stefano Livi, Hans Balsiger, Eckart Marsch, Darrell L. Judge, Fritz Gliem, M. I. Verigin, G. G. Managadze, H. P. Winterhoff, P. Bedini, Martin A. Lee, K. C. Hsieh, K.-U. Reiche, Peter Bochsler, A. Bürgi, H. Grünwaldt, Marcia Neugebauer, D. Hovestadt
Publikováno v:
Solar Physics. 162:441-481
The CELIAS experiment on SOHO is designed to measure the mass, ionic charge and energy of the low and high speed solar wind, of suprathermal ions, and of low energy flare particles. Through analysis of the elemental and isotopic abundances, the ionic