Radio Observations of OH in C/1999 LINEAR S4

Details Radio Observations of OH in C/1999 LINEAR S4 Radio Observations of OH in C/1999 LINEAR S4

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.4004s&link_type=abstract

American Astronomical Society, DPS Meeting #32, #40.04; Bulletin of the American Astronomical Society, Vol. 32, p.1070

Astronomy and Astrophysics

Astronomy

Scientific paper

We present observations of the 18-cm OH lines in comet C/1999 LINEAR S4 obtained at Arecibo Observatory. The 305m radio telescope provides the world's largest collecting area for radio OH observations. Thus, it allows sensitive maps of the radial brightness distribution of the OH emission to be obtained. Such maps are very useful to studies of the collisional quenching of the OH molecule in the coma, and the goal of this project is to estimate the size of the quenched region by fitting models to the maps. The comet was observed in the 1667, 1665, and 1612 MHz lines simultaneously at a spectral resolution of 380 Hz, corresponding to 70 m/s. A first set of observations was made during June 1, 3, 4, 5, and 7, 2000. The OH lines were detected at this time and then mapped in order to provide constraints on the radial brightness profile for subsequent model fitting. A second set of observations, obtained on July 27, 30, and August 4, 2000, did not yield a detection, presumably due to the breakup of the nucleus that was observed at this time. This observing campaign represents the first effort to observe the radio OH lines in a comet since the completion of the Arecibo upgrade project, and detailed calibration of the data is in progress. The results of the analysis of the June maps of the coma will be presented.

Affiliated with

Also associated with

No associations

Rating

Radio Observations of OH in C/1999 LINEAR S4 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 Radio Observations of OH in C/1999 LINEAR S4, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio Observations of OH in C/1999 LINEAR S4 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-867054