A Brief Review of Thermal Infrared Imaging and Spectroscopy of Comet Hale-Bopp (C/1995 O1)

Details A Brief Review of Thermal Infrared Imaging and Spectroscopy of Comet Hale-Bopp (C/1995 O1) A Brief Review of Thermal Infrared Imaging and Spectroscopy of Comet Hale-Bopp (C/1995 O1)

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...191.8803o&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #88.03; Bulletin of the American Astronomical Society, Vol. 29, p.1356

Astronomy and Astrophysics

Astronomy

Scientific paper

Since its discovery in July 1995 at a heliocentric distance beyond 7 AU, Comet Hale-Bopp (C/1995 O1) has provided astronomers with an unprecedented opportunity to advance the frontiers of cometary science. For the first time, a wide array of both ground and space based infrared instrumentation has been utilized to investigate the changing properties of the refractory cometary coma over a wide range of heliocentric distance both pre- and post-perihelion. From the first reported thermal observations of Hale-Bopp in May of 1996 at a heliocentric distance of 4.3 AU, through perihelion at 0.9 AU in April 1997, and back out to 3.8 AU in scheduled December 1997 observations, observers around the globe as well as using the orbiting Midcourse Space Experiment (MSX) and Infrared Space Observatory (ISO) have contributed to the largest infrared dataset obtained for any comet observed to date. This review will briefly summarize the results of the ongoing observational and modelling efforts including analysis of the size and composition of the dust grains and estimates of the physical properties of the cometary nucleus.

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