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Ground based observation of TNO targets for the Herschel Space Observatory

Published online by Cambridge University Press:  06 April 2010

R. Duffard ,
J. L. Ortiz ,
A. Thirouin ,
P. Santos-Sanz  and
N. Morales
R. Duffard
Affiliation:
Instituto de Astrofísica de Andalucía - CSIC, C/Camino Bajo de Huetor, 50. Granada, 18008, Spain email: duffard@iaa.es
J. L. Ortiz
Affiliation:
Instituto de Astrofísica de Andalucía - CSIC, C/Camino Bajo de Huetor, 50. Granada, 18008, Spain email: duffard@iaa.es
A. Thirouin
Affiliation:
Instituto de Astrofísica de Andalucía - CSIC, C/Camino Bajo de Huetor, 50. Granada, 18008, Spain email: duffard@iaa.es
P. Santos-Sanz
Affiliation:
Instituto de Astrofísica de Andalucía - CSIC, C/Camino Bajo de Huetor, 50. Granada, 18008, Spain email: duffard@iaa.es
N. Morales
Affiliation:
Instituto de Astrofísica de Andalucía - CSIC, C/Camino Bajo de Huetor, 50. Granada, 18008, Spain email: duffard@iaa.es
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Abstract

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We have observed a subset of TNOs that are going to be studied by means of Herschel Space Telescope (HSO). More than 50 objects have been studied astrometrically and 30 with time series photometry. The main conclusion regarding the astrometry is that all the observed HSO targets have ephemerides uncertainties smaller than 5 arcsec, needed for the correct pointing of the space telescope. Concerning the time series analysis of the targets, most of the objects present low amplitude variability. This is an on-going program and more results are expected.

Keywords

Trans-neptunian Objectsphotometryastrometry
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 201 - 204
Copyright
Copyright © International Astronomical Union 2010

References

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