Bicolour lightcurve of TNO 1996 TO66 with the ESO-VLT

Details Bicolour lightcurve of TNO 1996 TO66 with the ESO-VLT Bicolour lightcurve of TNO 1996 TO66 with the ESO-VLT

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...385..281s&link_type=abstract

Astronomy and Astrophysics, v.385, p.281-288 (2002)

Astronomy and Astrophysics

Astrophysics

12

Comets: General, Comets: Individual: Activity, Nucleus, Kuiper Belt, Asteroids

Scientific paper

We performed high resolution imaging of 1996 TO66 in V and R band to verify and monitor the lightcurve change, to address a colour change over a rotation and to search for a cometary activity. No activity was detected at the 29 mag/sq.arcsec level with 5400 s integration time with the ESO-VLT. Combining the data in Nov. and Dec. 1999, we obtained a complete rotation period coverage. The lightcurve was a single-peaked, with an amplitude of 0.21 mag in R. The (V - R) colour displays the inhomogeneity of TNO surface. TNO's patchy surface may be cause the intensity change of water absorption feature in near-IR spectra. These observations can be the starting points for a challenging work of surface mapping of TNOs. Based on observations performed at the European Southern Observatory, Paranal, Chile.

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