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A Revised Asteroid Polarization-Albedo Relationship Using WISE/NEOWISE Data

Masiero, Joseph R. and Mainzer, A. K. and Grav, T. and Bauer, J. M. and Wright, E. L. and McMillan, R. S. and Tholen, D. J. and Blain, A. W. (2012) A Revised Asteroid Polarization-Albedo Relationship Using WISE/NEOWISE Data. Astrophysical Journal, 749 (2). Art. No. 104. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20120515-153709263

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Abstract

We present a reanalysis of the relationship between asteroid albedo and polarization properties using the albedos derived from the Wide-field Infrared Survey Explorer. We find that the function that best describes this relation is a three-dimensional linear fit in the space of log (albedo)-log (polarization slope)-log (minimum polarization). When projected to two dimensions, the parameters of the fit are consistent with those found in previous work. We also define p^* as the quantity of maximal polarization variation when compared with the albedo and present the best-fitting albedo-p^* relation. Some asteroid taxonomic types stand out in this three-dimensional space, notably the E, B, and M Tholen types, while others cluster in clumps coincident with the S- and C-complex bodies. We note that both low albedo and small (D < 30 km) asteroids are underrepresented in the polarimetric sample, and we encourage future polarimetric surveys to focus on these bodies.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1088/0004-637X/749/2/104DOIArticle
http://iopscience.iop.org/0004-637X/749/2/104/PublisherArticle
ORCID:
AuthorORCID
Masiero, Joseph R.0000-0003-2638-720X
Grav, T. 0000-0002-3379-0534
Wright, E. L.0000-0001-5058-1593
Additional Information:© 2012 American Astronomical Society. Received 2011 November 18; accepted 2012 February 10; published 2012 March 27. The authors thank referee Alberto Cellino for his helpful review of this paper. J.R.M. was supported by an appointment to the NASA Postdoctoral Program at JPL, administered by Oak Ridge Associated Universities through a contract with NASA. This paper makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. This paper also makes use of data products from NEOWISE, which is a project of the Jet Propulsion Laboratory/California Institute of Technology, funded by the Planetary Science Division of the National Aeronautics and Space Administration. This research has made use of the NASA/IPAC Infrared Science Archive, which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
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Funding AgencyGrant Number
NASA Postdoctoral ProgramUNSPECIFIED
Subject Keywords: minor planets, asteroids: general; polarization
Issue or Number:2
Record Number:CaltechAUTHORS:20120515-153709263
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20120515-153709263
Official Citation: A Revised Asteroid Polarization-Albedo Relationship Using WISE/NEOWISE Data Joseph R. Masiero et al. 2012 ApJ 749 104
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:31484
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:16 May 2012 21:00
Last Modified:03 Oct 2019 03:52

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