Activity and Morphology of Comet LINEAR (2001 A2)

Details Activity and Morphology of Comet LINEAR (2001 A2) Activity and Morphology of Comet LINEAR (2001 A2)

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.4303w&link_type=abstract

American Astronomical Society, DPS Meeting #33, #43.03; Bulletin of the American Astronomical Society, Vol. 33, p.1121

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We present results from photometry and narrowband imaging of Comet LINEAR (2001 A2) obtained at the Lowell Observatory 1.1-m Hall telescope. Imaging was done between June 29 and July 20, 2001 and photometry between April 24 and September 19. Imaging revealed CN arcs symmetrical about p.a. 250 deg. Three successive arcs separated by approximately 12000 km were observed on each side; outward motion of the arcs was detected. These arcs were not observed in the dust continuum. We will present preliminary results from Monte Carlo modeling of the source locations of the one or two jets that these arcs may represent along with possible pole positions. OH production rates from June 28 and July 27 were log Q(OH) = 28.69 and 28.14 respectively, with equivalent log Q(water; vectorial) = 28.82 and 28.20. Over the entire observed apparition the r-dependence of water was much steeper than that for dust. This research was supported by NASA.

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