Near-Infrared Photometry of the Irregular Satellites of Jupiter and Saturn

  title={Near-Infrared Photometry of the Irregular Satellites of Jupiter and Saturn},
  author={T. Grav and Matthew J. Holman},
  journal={The Astrophysical Journal},
We present JHKs photometry of 10 Jovian and four Saturnian irregular satellites, taken with the Near-InfraRed Imager at the 8 m Gemini North Observatory on Mauna Kea, Hawaii. The observed objects have near-infrared colors consistent with C-, P-, and D-type asteroids, although J XII Ananke and S IX Phoebe show weak indications of possible water features in the H filter. The four members of the Himalia family have similar near-infrared colors, as do the two members of the Gallic family, S XX… Expand

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