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Record 89 of 18625
Physical Characteristics of Asteroid-like Comet Nucleus C/2001 OG108 (LONEOS)
Offline Availability: Go to Request Form
Author and Affiliation:
Abell, P. A.(Rensselaer Polytechnic Inst., Planetary Sciences Lab., Troy, NY, United States)
Fernandez, Y. R.(Hawaii Univ., Inst. for Astronomy, Honolulu, HI, United States)
Pravec, P.(Ceskoslovenska Akademie Ved, Astronomical Inst., Ondrejov, Czechoslovakia)
French, L. M.(Illinois Wesleyan Univ., Dept. of Physics, Bloomington, IL, United States)
Farnham, T. L.(Maryland Univ., Dept. of Astronomy, College Park, MD, United States)
Gaffey, M. J.(North Dakota Univ., Space Studies Dept., Grand Forks, ND, United States)
Hardersen, P. S.(Rensselaer Polytechnic Inst., Planetary Sciences Lab., Troy, NY, United States)
Kusnirak, P.(Ceskoslovenska Akademie Ved, Astronomical Inst., Ondrejov, Czechoslovakia)
Sarounova, L.(Ceskoslovenska Akademie Ved, Astronomical Inst., Ondrejov, Czechoslovakia)
Sheppard, S. S.(Hawaii Univ., Inst. for Astronomy, Honolulu, HI, United States)
Abstract: For many years several investigators have suggested that some portion of the near-Earth asteroid population may actually be extinct cometary nuclei. Evidence used to support these hypotheses was based on: observations of asteroid orbits and associated meteor showers (e.g. 3200 Phaethon and the Geminid meteor shower); low activity of short period comet nuclei, which implied nonvolatile surface crusts (e.g. Neujmin 1, Arend-Rigaux); and detections of transient cometary activity in some near-Earth asteroids (e.g. 4015 Wilson-Harrington). Recent investigations have suggested that approximately 5-10% of the near- Earth asteroid population may be extinct comets. However if members of the near-Earth asteroid population are extinct cometary nuclei, then there should be some objects within this population that are near their final stages of evolution and so should demonstrate only low levels of activity. The recent detections of coma from near-Earth object 2001 OG108 have renewed interest in this possible comet-asteroid connection. This paper presents the first high quality ground-based near-infrared reflectance spectrum of a comet nucleus combined with detailed lightcurve and albedo measurements.
Publication Date: Jan 01, 2003
Document ID:
20030110885
(Acquired Dec 13, 2003)
Subject Category: LUNAR AND PLANETARY SCIENCE AND EXPLORATION
Document Type: Conference Paper
Publication Information: Lunar and Planetary Science XXXIV; (LPI-Contrib-1156); (SEE 20030110578)
Contract/Grant/Task Num: NAG5-10345; NAG5-7598; A3003204; 205-99-0255
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Ceskoslovenska Akademie Ved; Grant Agency; Czechoslovakia
National Science Foundation; United States
Organization Source: Rensselaer Polytechnic Inst.; Planetary Sciences Lab.; Troy, NY, United States
Description: 2p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution under U.S. Government purpose rights; under cooperative agreement NCC5-679
NASA Terms: ASTEROIDS; COMET NUCLEI; NEAR EARTH OBJECTS; PHYSICAL PROPERTIES; NEAR INFRARED RADIATION; ALBEDO; LIGHT CURVE; METEOROID SHOWERS
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