Details

Autor(en) / Beteiligte

• Takato, Naruhisa
• Fuse, Tetsuharu
• Gaessler, Wolfgang
• Goto, Miwa
• Kanzawa, Tomio
• Kobayashi, Naoto
• Minowa, Yosuke
• Oya, Shin
• Pyo, Tae-Soo
• Saint-Jacque, D
• Takami, Hideki
• Terada, Hiroshi
• Hayano, Yutaka
• Iye, Masanori
• Kamata, Yukiko
• Tokunaga, A. T

Titel

Near-Infrared Colors of the Binary Kuiper Belt Object 1998 WW31

Ist Teil von

• Earth, moon, and planets, 2003-06, Vol.92 (1-4), p.183-191

Ort / Verlag

Dordrecht: Springer Nature B.V

Erscheinungsjahr

2003

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We have measured near-infrared colorsof the binary Kuiper Belt object (KBO)1998 WW31 using the Subaru Telescope withadaptive optics. The satellite was detectednear its perigee and apogee(0.18“ and 1.2” apart from the primary).The primary and the satellite have similar H–Kcolors, while the satellite is redder thanthe primary in J–H. Combined with the Rband magnitude previously published byVeillet et al., 2002, the color of the primaryis consistent with that of optically red KBOs. Thesatellite's R-, J-, H-colors suggest thepresence of ∼1 μm absorption band dueto rock-forming minerals. If the surface of thesatellite is mainly composed by olivine, thesatellite's albedo is higher value than the canonicallyassumed value of 4%.