High resolution surface brightness profiles of near-earth asteroids

Details High resolution surface brightness profiles of near-earth asteroids High resolution surface brightness profiles of near-earth asteroids

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...97..276l&link_type=abstract

Icarus (ISSN 0019-1035), vol. 97, no. 2, June 1992, p. 276-287. Research supported by Smithsonian Institution and NSF.

Astronomy and Astrophysics

Astronomy

27

Albedo, Asteroids, Brightness Distribution, Charge Coupled Devices, High Resolution, Astronomical Photometry, Atmospheric Turbulence, Comet Nuclei, Comets, Seeing (Astronomy)

Scientific paper

A novel method is presently used to ascertain mass-loss in near-earth asteroids (NEAs) on the basis of high resolution surface photometry obtained with a CCD focal-plane instrument. While the limiting mass-loss rates thus obtained are between 1 and 2 orders of magnitude smaller than is characteristic of weakly-active comets, these mass loss rate upper limits are noted to imply NEA fractionally-active areas comparable to those in comets. The mass loss rates of these areas may because of the small sizes of the NEAs lie below the detection limit of current instruments.

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