Bulk Densities of Binary Asteroids from the Warm Spitzer NEO Survey

Kistler, J. and Trilling, D.E. and Mueller, M. and Hora, J.L. and Harris, A.W. and Bhattacharya, B. and Bottke, W.F. and Chesley, S. and Emery, J.P. and Fazio, G. and Mainzer, A. and Penprase, B. and Smith, H.A. and Spahr, T.B. and Stansberry, J.A. and Thomas, C.A. (2010) Bulk Densities of Binary Asteroids from the Warm Spitzer NEO Survey. In: Bulletin of the American Astronomical Society, 42 (4), p. 1082. American Astronomical Society. American Astronomical Society Division for Planetary Sciences meeting #42, 2010-10-03 - 2010-10-08, Pasadena, USA. ISSN 0002-7537.

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Official URL: http://www.abstractsonline.com/plan/ViewAbstract.aspx?mID=2704&sKey=8102c03d-20b1-47e2-951c-335d761edbf4&cKey=cb258bdb-2fe0-44d2-8ae2-9ffc46f956a8&mKey={D515DFC0-245C-4047-81CC-C221DC1A54C6}

Abstract

The Warm Spitzer NEO survey, ExploreNEOs, will observe approximately 700 Near Earth Asteroids. Several of these objects are known to be binary asteroid systems. Binary systems are interesting due to the unique opportunity they present for determining the masses and densities of their constituent bodies. The calculations rely on a variety of data sources. The geometric albedo and effective diameter of the system are known via ExploreNEOs. Ground based light curve observations can give the orbital period and the secondary to primary diameter ratio of the system. In some cases, Arecibo radar observations provide the semi-major axis of the system. We report here the bulk density of one of these binaries in particular, asteroid 1999DJ4. The density derived is 1.6 g/cm3. For those cases where radar data is unavailable, we address the effectiveness and difficulties of using transit timing of a binary asteroid to determine the semi-major axis of the system. We discuss the viability of finding a bulk density based solely on Warm Spitzer observations and ground based light curve data.

Item URL in elib:

https://elib.dlr.de/66752/

Document Type:

Conference or Workshop Item (Paper)

Title:

Bulk Densities of Binary Asteroids from the Warm Spitzer NEO Survey

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD	ORCID Put Code
Kistler, J.	Northern Arizona university, USA	UNSPECIFIED	UNSPECIFIED
Trilling, D.E.	Northern Arizona University, USA	UNSPECIFIED	UNSPECIFIED
Mueller, M.	Universite de Nice Sophia Antipolis, France	UNSPECIFIED	UNSPECIFIED
Hora, J.L.	Harvard-Smithsonian Center for Astrophysics, USA	UNSPECIFIED	UNSPECIFIED
Harris, A.W.	UNSPECIFIED	https://orcid.org/0000-0001-8548-8268	UNSPECIFIED
Bhattacharya, B.	NASA Herschel Science Center Caltech, USA	UNSPECIFIED	UNSPECIFIED
Bottke, W.F.	Southwest Research Institute, USA	UNSPECIFIED	UNSPECIFIED
Chesley, S.	Jet Propulsion Laboratory, California Institute of Technology, USA	UNSPECIFIED	UNSPECIFIED
Emery, J.P.	Department of Earth and Planetary Sciences, University of Tennessee, USA	UNSPECIFIED	UNSPECIFIED
Fazio, G.	Harvard-Smithsonian Center for Astrophysics, USA	UNSPECIFIED	UNSPECIFIED
Mainzer, A.	Jet Propulsion Laboratory, California Institute of Technology, USA	UNSPECIFIED	UNSPECIFIED
Penprase, B.	Department of Physics and Astronomy, Pomona College, USA	UNSPECIFIED	UNSPECIFIED
Smith, H.A.	Harvard-Smithsonian Center for Astrophysics, USA	UNSPECIFIED	UNSPECIFIED
Spahr, T.B.	Harvard-Smithsonian Center for Astrophysics, USA	UNSPECIFIED	UNSPECIFIED
Stansberry, J.A.	Steward Observatory, University of Arizona, USA	UNSPECIFIED	UNSPECIFIED
Thomas, C.A.	Northern Arizona University, USA	UNSPECIFIED	UNSPECIFIED

Date:

October 2010

Journal or Publication Title:

Bulletin of the American Astronomical Society

Open Access:

Gold Open Access:

In SCOPUS:

In ISI Web of Science:

Volume:

Page Range:

p. 1082

Editors:

Editors	Email	Editor's ORCID iD	ORCID Put Code
Marvel, K.B.	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED

Publisher:

American Astronomical Society

ISSN:

0002-7537

Status:

Published

Keywords:

Near-Earth objects, Spitzer Space telescope, Binary asteroids

Event Title:

American Astronomical Society Division for Planetary Sciences meeting #42

Event Location:

Pasadena, USA

Event Type:

international Conference

Event Start Date:

3 October 2010

Event End Date:

8 October 2010

Organizer:

American Astronomical Society

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:

Harris, Prof. Alan

Deposited On:

03 Jan 2011 20:29

Last Modified:

24 Apr 2024 19:32

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