The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM

Details The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998baas...30.1073m&link_type=abstract

American Astronomical Society, DPS meeting #30, #31.P13; Bulletin of the American Astronomical Society, Vol. 30, p.1073

Astronomy and Astrophysics

Astronomy

Scientific paper

The exceptional brightness and long observational window of Comet Hale-Bopp provided a remarkable opportunity to study both the cometary neutral coma and the cometary plasma in the coma and ion tail. In response to this opportunity, a coordinated earth-based observing campaign for Comet Hale-Bopp was undertaken involving personnel from the University of Wisconsin and Goddard Space Fight Center. Seven different instruments were used to measure cometary emissions for H-alpha , OH, O, H2O(+) , NH2, C, CN, C2, and the continuum. Here we present observations and model analysis for the [O I] 6300 Angstroms emission line in Comet Hale-Bopp. In March 1997, the [O I] 6300 Angstroms emission observations were recorded by four instruments on Kitt Peak. Two of the instruments were multi-object spectrographs (MOS) fed by the Wisconsin, Indiana, Yale, NRAO (WIYN) telescope. The third instrument was the 6 inch Fabry-Perot spectrometer that comprises the Wisconsin Hα Mapper (WHAM), which recorded narrow band images over a 1(deg) field of view. The fourth instrument was a 2 inch Fabry-Perot spectrometer on the McMath-Pierce main telescope which recorded high resolution (lambda /Delta lambda = 80,000) spectra of the [O I] 6300 Angstroms line of the central 6 arcminutes of the comet. The combination of MOS and Fabry-Perot data covers spatial scales ranging from 2,000 km to 1 x 10(6) km. The analysis conducted to date suggests that the [O I] intensity as a function of radius resembles a function of the form A r(-k(r)) where k(r) varies from ~ 0.4 for r < 30,000 km, to ~ 2 for r > 200,000 km. Modeling analysis for the [O I] 6300 Angstroms observations using the state-of-the-art Monte Carlo Particle Trajectory Model (MCPTM) of Combi and Smyth (Ap.J. 327, 1026-1043, 1988) including recent refinements (Combi et. al. Ap.J. 408, 668-677, 1993) will be discussed.

Affiliated with

Also associated with

No associations

Rating

The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Spatial Distribution of [O I] in Comet Hale-Bopp from 2,000 to 1 X 10(6) KM will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-813419