COmospheric Waves

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Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.547..119a&link_type=abstract

Proceedings of 'SOHO 13 - Waves, Oscillations and Small-Scale Transient Events in the Solar Atmosphere: A Joint View from SOHO a

Physics

Optics

1

Carbon Monoxide, Infrared Spectra

Scientific paper

The puzzling cool "COmosphere" is an important interface between the radiatively controlled outer photosphere and the dynamics-dominated chromosphere. Highresolution spectroscopy of the thermal infrared rovibrational bands of carbon monoxide is a key tool to elucidate the physical properties of the cool gas, and to search for dynamical signatures of the waves that shock at higher altitudes to excite the Ca II "K grains" and other phenomena. An adaptive optics system developed for the McMath-Pierce telescope has shown exceptional promise for improving thermal infrared observations, particularly with the very high-resolution Fourier transform spectrometer. At the same time, AO and integral field units now are allowing high-quality imaging spectroscopy (albeit at lower spectral resolution) of the CO lines over 10 × 10 areas with high enough cadence to measure the wave field down to periods of about 10 s.

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