DPS Meeting, Madison, October 1998
Session 29P. Comets I
Contributed Poster Session, Wednesday, October 14, 1998, 5:10-6:10pm, Hall of Ideas

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[29P.17] Spatial Distribution of Ions and Molecules in Comet Hale-Bopp

J.F. Kielkopf, P.M. Graham (Physics Dept., Univ. Louisville)

A wide field spectral imaging telescope was used to observe Comet Hale-Bopp (C/1995 01) from 23 February through 10 April 1997. The instrument has a 4~Å~\times~11 arcsecond single pixel resolution over a 4000~Å~\times~3.2\circ field.

Spectra presented here exhibit the development and spatial distribution of several ions and molecules present in the coma and tails of this comet. They include H2O+, CO+, C2, CN, [OI], Na~I, and OH. Cometary H\alpha emission was detected on the two dates bordering perihelion.

In addition, there is a spectrum of a dawn twilight clear sky which is remarkable in the presence of a bright narrow Na~D emission of the order of 2000~R above nearby continuum -- the twilight airglow sodium flash.

If you would like more information about this abstract, please follow the link to http://www.astro.louisville.edu/maindome/wispi/wispi.html. This link was provided by the author. When you follow it, you will leave the Web site for this meeting; to return, you should use the Back comand on your browser.

The author(s) of this abstract have provided an email address for comments about the abstract: pam@moondog.astro.louisville.edu

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