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Chromospheric observations in the helium 1083NM line : a new instrument

Show simple item record Murphy, Neil Smith, Edward Rodgers, Wayne Jefferies, Stuart 2006-02-14T22:57:39Z 2006-02-14T22:57:39Z 2005-06-12
dc.identifier.citation Proceedings of the Solar Wind XI/SOHO, Whistler BC, Canada, June 12-17, 2005. en
dc.identifier.clearanceno 05-2247
dc.description.abstract Photometric, spectroscopic and polarimetric observations in the Helium 1083 nm line provide important diagnostic information on the structure and dynamics of the chromosphere. We describe an imaging instrument designed to probe the chromosphere in the Helium 1083nm line, based on a Helium magneto-optical filter. The instrument has two narrow passbands (≈ 0.006 nm) in the wings of each line of the Helium 1083nm triplet, high throughput and stability, making it ideal for making high cadence observations in support of studies of chromospheric dynamics and wave propagation. We describe the characteristics of the instrument and present preliminary observations and discuss future plans. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 435217 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005 en
dc.subject solar atmosphere en
dc.subject photometric en
dc.subject spectroscopic en
dc.subject polarimetric en
dc.title Chromospheric observations in the helium 1083NM line : a new instrument en
dc.type Preprint en

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