Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-11-23
Astronomy and Astrophysics
Astrophysics
10 pages, 10 figures, 6 tables. Accepted for publication in The Astronomical Journal (2008 November 28)
Scientific paper
10.1088/0004-6256/137/2/3404
We present time-resolved near-infrared (J and H) photometry of the extreme Kuiper belt object (136108) Haumea (formerly 2003 EL61) taken to further investigate rotational variability of this object. The new data show that the near-infrared peak-to-peak photometric range is similar to the value at visible wavelengths, \Delta m_R = 0.30+/-0.02 mag. Detailed analysis of the new and previous data reveals subtle visible/near-infrared color variations across the surface of Haumea. The color variations are spatially correlated with a previously identified surface region, redder in B-R and darker than the mean surface. Our photometry indicates that the J-H colors of Haumea (J-H=-0.057+/-0.016 mag) and its brightest satellite Hi'iaka (J-H=-0.399+/-0.034 mag) are significantly (>9 sigma) different. The satellite Hi'iaka is unusually blue in J-H, consistent with strong 1.5 micron water-ice absorption. The phase coefficient of Haumea in the J-band is found to increase monotonically with wavelength in the range 0.4
No associations
LandOfFree
Time-Resolved Near-Infrared Photometry of Extreme Kuiper Belt Object Haumea does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Time-Resolved Near-Infrared Photometry of Extreme Kuiper Belt Object Haumea, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-Resolved Near-Infrared Photometry of Extreme Kuiper Belt Object Haumea will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-338650