E-Type Asteroids: Spectroscopic Investigation on the 0.5μm Absorption Band

Details E-Type Asteroids: Spectroscopic Investigation on the 0.5μm Absorption Band E-Type Asteroids: Spectroscopic Investigation on the 0.5μm Absorption Band

Jul 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icar..152..127f&link_type=abstract

Icarus, Volume 152, Issue 1, pp. 127-133 (2001).

Computer Science

23

Scientific paper

Visible spectra of five E-type asteroids have been obtained at the European Southern Observatory with the 1.5-m telescope. Three of these objects reveal a peculiar absorption band centered around 0.5μm whose origin is not easily attributable. A possible source might be troilite, which is also a known constituent of aubrite meteorites, as it has a spectral behavior consistent with the visible and near infrared spectrum of these objects and may be responsible not only for the 0.5-μm band but probably also for the 3-μm band observed on the surface of these objects. We report in this paper the results of our investigation and a discussion regarding the possible composition of E-type asteroids.

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