Cometary activity in 2060 Chiron

Details Cometary activity in 2060 Chiron Cometary activity in 2060 Chiron

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100..913l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, Sept. 1990, p. 913-932. Research supported by NASA.

Astronomy and Astrophysics

Astronomy

93

Astronomical Photometry, Astronomical Spectroscopy, Chiron, Comets, Brightness Distribution, Charge Coupled Devices, Comet Nuclei, Light Curve, Telescopes

Scientific paper

Results of a 2-yr (1988-90) investigation of cometary activity in 2060 Chiron based on CCD photometry and spectroscopy are reported. The photometry observations include a new rotational light curve of Chiron, a newly refined rotation period, recent developments of its long-term photometric behavior and surface brightness profiles, a deep image of the coma of Chiron, and narrowband images at wavelengths ranging from 3200 to 6840 A. The spectroscopic data include moderate resolution CCD spectra (10-20 A FWHM). Major results include the detection of impulsive brightening on a time scale of hours, evidence for a secular change in the blue portion of the reflectivity spectrum of the nucleus, no evidence for Rayleigh scattering in the near ultraviolet, and an upper limit of the column density of CO(+) ions in the coma.

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