Other
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh41b25p&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SH41B-25
Other
7509 Corona
Scientific paper
Eclipse observations extend upward from the lunar limb, and so include a region occulted by all coronagraphs, spaceborne and mountaintop. Prior to the 1998 total solar eclipse, we conceived a joint observation with LASCO on SOHO to observe the solar corona with the same field of view and same filter passband and central wavelength. We would not only fill in the occulted region from the SOHO C1 coronagraph but also measure the substantial scattered light on C1 as a function of position by comparing its observations with ours. We have used a purpose-built telescope matching SOHO's and IDL to obtain and calibrate those observations with a 0.3 nm passband at 530.0 nm, offband from the coronal green line. Further, with the demise of C1, we used an improvement in our apparatus to observe on-band at 530.3 nm during the total solar eclipse of 1999. For both eclipses, we have interposed the EIT disk observations with our eclipse observations of the lower corona and with LASCO C2 observations of higher coronal levels to provide a full-field continuous image of the corona, emphasizing streamers and other structure and tracing them from their feet on the solar disk upward through the corona.
Babcock Bryce A.
Martín Samuel
Pasachoff Jay. M.
Russell Kevin D.
Seaton Daniel B.
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