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Observations of 433 Eros from 1.25 to 3.35 microns
Author(s) -
Rivkin A. S.,
Clark B. E.
Publication year - 2001
Publication title -
meteoritics and planetary science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.09
H-Index - 100
eISSN - 1945-5100
pISSN - 1086-9379
DOI - 10.1111/j.1945-5100.2001.tb01859.x
Subject(s) - anhydrous , flux (metallurgy) , spectral line , geology , astrophysics , spacecraft , astronomy , spectrometer , infrared , absorption (acoustics) , physics , materials science , optics , chemistry , metallurgy , organic chemistry
— We have spectrophotometrically observed 433 Eros, the target of the NEAR‐Shoemaker spacecraft, on 1995 December 4 from 1.25 to 3.35 μm. As expected, Eros shows no evidence of an absorption feature >5% in the 3 μm region, and is interpreted to have an anhydrous surface within observational uncertainties. Our observations in the JHK region agree with previous work by Chapman and Morrison (1976) and Murchie and Pieters (1996), but differ from the near‐infrared spectrometer spectra reported by Clark et al. (2001). Our calculations indicate that thermal flux from Eros is not responsible for this mismatch.