Polarized Resonance Fluorescence of Comet Hale-Bopp

Details Polarized Resonance Fluorescence of Comet Hale-Bopp Polarized Resonance Fluorescence of Comet Hale-Bopp

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997dps....29.3719a&link_type=abstract

American Astronomical Society, DPS meeting #29, #37.19; Bulletin of the American Astronomical Society, Vol. 29, p.1050

Astronomy and Astrophysics

Astronomy

Scientific paper

Because it is basically a vector-related technique, polarization spectroscopy can provide information not obtainable using traditional spectroscopic methods. Typically polarization measurements are assoc- iated with the characterization of the dust continuum. However, although not as frequently studied, resonance fluorescence can also exhibit polarization and the information can be related to physical properties of the comet, e.g., magnetic-field direction. Observations of comet Hale-Bopp were made shortly after perihelion (April 4 - 14, 1996) using the Vacuum Tower Telescope at the National Solar Observatory in Sunspot, NM. Images were taken through a variety of filters and spectra acquired using the high-resolution horizontal spectrograph; in both cases data were acquired with and without polarization analysis. Here we report on the preliminary analysis of polarization images and spectra of the sodium (Na) D1 and D2 lines and the Swan system of C2.

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