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A ground-based observing program in support of the Warm Spitzer NEO project

Bhattacharya, B. and Trilling, D.E. and Bottke, W.F. and Chesley, S.R. and Delbo, M. and Emery, J.P. and Fazio, G.G. and Hagen, A.R. and Harris, A.W. and Hora, J. and Mainzer, A.K. and Mueller, M. and Penprase, B.E. and Smith, H.A. and Spahr, T.B. and Stansberry, J.A. and Thomas, C.A. (2010) A ground-based observing program in support of the Warm Spitzer NEO project. In: Bulletin of the American Astronomical Society, 41, p. 433. American Astronomical Society. American Astronomical Society, Meeting #215, 3-7 January 2010, Washington, DC, USA.

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Abstract

A Warm Spitzer survey of approximately 700 near-Earth objects (NEOs) has been started to derive albedos and diameters of the numerous small bodies. We present a ground-based NEO observation program designed to complement the Spitzer data. By using a variety of observational techniques, we aim to obtain optical magnitudes, lightcurves and compositional information for many of these objects. We have begun a program to obtain high-quality optical magnitudes of all 700 Spitzer targets, using a variety of telescope facilities with a range of apertures (from 0.36 m to 8 m). For a subset of our targets, we will also obtain lightcurves, which will be used as a proxy for the larger sample. We plan to obtain spectra of 250 objects from the Spitzer NEO sample and broadband spectrophotometric measurements of another 100. These spectroscopic results will allow us to derive compositions for nearly half our sample and act as a ground-truth for the larger, complete sample. Observations are already scheduled on the NASA Infrared Telescope Facility (SpeX as well as MIRSI, which will be used to confirm our Spitzer thermal observations and modeling), NOAO SMARTS telescopes, the Las Campanas 1-meter and several smaller telescopes. We will continue to expand the range of facilities used, matching aperture with target brightness. This catalog of objects will serve as a reference sample for a wide variety of future NEO studies.

Document Type:Conference or Workshop Item (Lecture)
Title:A ground-based observing program in support of the Warm Spitzer NEO project
Authors:
AuthorsInstitution or Email of Authors
Bhattacharya, B.Caltech, USA
Trilling, D.E.Northern Arizona University, USA
Bottke, W.F.SWRI, USA
Chesley, S.R.JPL/Caltech, USA
Delbo, M.Observatoire de la Cote d'Azur, France
Emery, J.P.Univ. Tennesse, Knoxville, USA
Fazio, G.G.Harvard Smithsonian, USA
Hagen, A.R.Harvey Mudd College, USA
Harris, A.W.UNSPECIFIED
Hora, J.Harvard Smithsonian, USA
Mainzer, A.K.JPL/Caltech, USA
Mueller, M.Observatoire de la Cote d'Azur, France
Penprase, B.E.Pomona College, USA
Smith, H.A.Harvard Smithsonian, USA
Spahr, T.B.Harvard Smithsonian, USA
Stansberry, J.A.University of Arizona, USA
Thomas, C.A.Northern Arizona University, USA
Date:January 2010
Journal or Publication Title:Bulletin of the American Astronomical Society
Volume:41
Page Range:p. 433
Publisher:American Astronomical Society
Status:Published
Keywords:Asteroid, NEO, infrared photometry, Spitzer Space Telescope
Event Title:American Astronomical Society, Meeting #215
Event Location:Washington, DC, USA
Event Type:international Conference
Event Dates:3-7 January 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Asteroiden und Kometen (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Prof. Alan Harris
Deposited On:13 Apr 2010 10:31
Last Modified:13 Apr 2010 10:35

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