First Results from a Novel Magnetograph (SHAZAM)

Details First Results from a Novel Magnetograph (SHAZAM) First Results from a Novel Magnetograph (SHAZAM)

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.3301d&link_type=abstract

American Astronomical Society, SPD meeting #40, #33.01; Bulletin of the American Astronomical Society, Vol. 41, p.866

Astronomy and Astrophysics

Astronomy

Scientific paper

The magnetic energy flux through the Sun's surface is dominated by small features at all currently observable spatial scales; hence there is a strong need to improve the spatial resolution of magnetic measurements, which are increasingly photon starved as telescopes improve. The Solar High-speed Zeeman Magnetograph (SHAZAM) is a line-of-sight magnetograph based on the principle of spectral stereoscopy. It is designed to acquire magnetograms quickly enough to beat image fluctuations due to both solar evolution and terrestrial seeing, even on scales under 100 km on the Sun. It is over 100x more photon efficient than existing quantitative magnetographs such as SOHO/MDI. We present first results from an observing run at the National Solar Observatory's Dunn Solar Telescope in May 2009, hopefully including near-diffraction-limited, time resolved magnetogram sequences with better than 150km resolution on the surface of the Sun.

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