A search for rotational variations on trans-Neptunian objects

Details A search for rotational variations on trans-Neptunian objects A search for rotational variations on trans-Neptunian objects

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...475..369a&link_type=abstract

Astronomy and Astrophysics, Volume 475, Issue 1, November III 2007, pp.369-374

Astronomy and Astrophysics

Astrophysics

9

Kuiper Belt, Techniques: Spectroscopic

Scientific paper

Aims:Our aim is to investigate the surface composition of TNOs. In particular we would like to confirm diverse spectral absorption features and to search for rotational inhomogeneities on one scattered disk object (26375) 1999 DE9, two plutinos (38628) Huya and (47932) 2000 GN{171}, and one centaur (83982) Crantor. Methods: We observed the targets with a new instrument available at the VLT, the near-infrared integral field spectrograph SINFONI. We obtained complete near-infrared spectra between 1.4 and 2.4 μm and compared them with data recorded previously by various groups. Results: Two objects, (38628) Huya and (83982) Crantor, have evidence of an absorption feature in their spectra at 2.0 μm, probably associated with water ice. (83982) Crantor shows a feature at 2.3 μm which could be associated with methanol. On the other hand, no features were found for (26375) 1999 DE9 and (47932) 2000 GN{171} above the signal-to-noise ratio. Possible rotational heterogeneity can be seen on two objects: (38628) Huya as the 2.0 μm band is present on some spectra and absent on others, while (47932) 2000 GN{171} shows a flat reflectance in contrast to an absorption in the H region previously seen.
Based on observations collected at VLT Observatory Cerro Paranal of the European Southern Observatory, ESO in Chile, within the framework of program 077.C-0265.

Affiliated with

Also associated with

No associations

Rating

A search for rotational variations on trans-Neptunian objects 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 A search for rotational variations on trans-Neptunian objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for rotational variations on trans-Neptunian objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1695785