Infrared spectral observations of asteroid 4 Vesta

Harold P. Larson, Uwe - Fink

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

An ir spectrum of asteroid Vesta, the first of any asteroid, has been recorded at a spectral resolution of 44 cm-1 with a Fourier spectrometer. An electronic absorption band is observed that is assigned to an iron-rich pyroxene (pigeonite) spectroscopically similar to that found in certain eucrites. Other important rock-forming minerals such as olivine and plagioclase feldspar are not observed. There is no evidence for compositional variation with rotational phase angle. This spectroscopic picture of Vesta suggests considerable evolution including the melting and differentiation of silicates.

Original languageEnglish (US)
Pages (from-to)420-427
Number of pages8
JournalIcarus
Volume26
Issue number4
DOIs
StatePublished - 1975

Fingerprint

Vesta asteroid
plagioclase
asteroids
olivine
spectral resolution
asteroid
silicates
phase shift
minerals
melting
rocks
spectrometers
absorption spectra
eucrite
iron
pigeonite
electronics
pyroxene
feldspar
spectrometer

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Infrared spectral observations of asteroid 4 Vesta. / P. Larson, Harold; Fink, Uwe -.

In: Icarus, Vol. 26, No. 4, 1975, p. 420-427.

Research output: Contribution to journalArticle

P. Larson, Harold ; Fink, Uwe -. / Infrared spectral observations of asteroid 4 Vesta. In: Icarus. 1975 ; Vol. 26, No. 4. pp. 420-427.
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