Reuven Ramaty 1937 – 2001
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Transcript of Reuven Ramaty 1937 – 2001
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Reuven Ramaty1937 – 2001
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RHESSI people
• UC Berkeley (Bob Lin)
• NASA GSFC (Brian Dennis)
• Paul Scherrer Institute (Alex Zehnder)
• Co-Is Benz, Brown, Emslie, Enome, Hudson, Hurford, Kosugi, Ramaty, Smith, Vilmer (Aschwanden? Holman? Krucker?)
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RHESSI description
• A NASA Small Explorer (the 6th SMEX)• Spin-stabilized modulation collimator array
in low Earth orbit• Germanium detectors for high resolution X-
ray and -ray imaging spectroscopy• Launched successfully February 6, 2002• All data and software public-domain. The
GUI really works.
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Three RHESSI items
• Interplanetary connection
• Gamma-ray flare (July 23, 2002)
• Late arcade development (April 21, 2002)
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Coronal connectivity via SEPs
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Slide 16Slide 16
Courtesy of Brian Dennis
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July 23, 2002, -ray event
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Krucker et al. 2003
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Hurford et al. 2003
Centroids of bremsstrahlung and 2.223 MeV emissions
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April 21, 2002 “slow LDE”
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Gallagher et al., 2002