NASA Infrared Telescope Facility Comet Halley monitoring program. II. Postperihelion results

Journal Article · Wed Nov 30 23:00:00 EST 1988 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/114945· OSTI ID:6286028

Tokunaga, A T; Golisch, W F; Griep, D M; Kaminski, C D; Hanner, M S

Postperihelion 1-20-micron magnitudes of Comet Halley obtained at the NASA Infrared Telescope Facility are presented. These magnitudes complement the preperihelion magnitudes published earlier by Tokunaga et al.(1986). The time period covered in this program was March 1986 through June 1987. While no systematic near-infrared color change was found during the preperihelion passage, a distinct J-H, H-K color change occurred during the postperihelion passage after July 1986. This indicates that there was a change in either the composition or particle size of the cometary dust, or both. 35 references.

• Research Organization: Hawaii Univ., Honolulu (USA); NASA, Infrared Telescope Facility, Hilo, HI (USA); California Institute of Technology, Pasadena (USA)
• OSTI ID: 6286028
• Journal Information: Astron. J.; (United States), Journal Name: Astron. J.; (United States) Vol. 96; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640107* -- Astrophysics & Cosmology-- Planetary Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CHEMICAL COMPOSITION
COMETS
COSMIC DUST
DUSTS
ELECTROMAGNETIC RADIATION
HALLEY COMET
INFRARED RADIATION
NASA
NATIONAL ORGANIZATIONS
PARTICLE SIZE
RADIATIONS
SIZE
TELESCOPES
US ORGANIZATIONS