The 3 μm spectrum of Jupiter's irregular satellite Himalia

M. E. Brown, A. R. Rhoden

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We present a medium resolution spectrum of Jupiter's irregular satellite Himalia covering the critical 3 μm spectral region. The spectrum shows no evidence for aqueously altered phyllosilicates, as had been suggested from the tentative detection of a 0.7 μm absorption, but instead shows a spectrum strikingly similar to the C/CF type asteroid 52 Europa. 52 Europa is the prototype of a class of asteroids generally situated in the outer asteroid belt between less distant asteroids which show evidence for aqueous alteration and more distant asteroids which show evidence for water ice. The spectral match between Himalia and this group of asteroids is surprising and difficult to reconcile with models of the origin of the irregular satellites.

Original languageEnglish (US)
Article numberL44
JournalAstrophysical Journal Letters
Volume793
Issue number2
DOIs
StatePublished - Oct 1 2014
Externally publishedYes

Fingerprint

Himalia
asteroids
Jupiter (planet)
Jupiter
asteroid
Europa
asteroid belts
phyllosilicate
ice
coverings
prototypes
water

Keywords

  • planets and satellites: composition
  • planets and satellites: formation
  • planets and satellites: individual (Himalia)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

The 3 μm spectrum of Jupiter's irregular satellite Himalia. / Brown, M. E.; Rhoden, A. R.

In: Astrophysical Journal Letters, Vol. 793, No. 2, L44, 01.10.2014.

Research output: Contribution to journalArticle

Brown, M. E. ; Rhoden, A. R. / The 3 μm spectrum of Jupiter's irregular satellite Himalia. In: Astrophysical Journal Letters. 2014 ; Vol. 793, No. 2.
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