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What Can the Cosmic Microwave Background Tell Us about the Outer Solar System?

Babich, Daniel and Blake, Cullen H. and Steinhardt, Charles L. (2007) What Can the Cosmic Microwave Background Tell Us about the Outer Solar System? Astrophysical Journal, 669 (2). pp. 1406-1413. ISSN 0004-637X.

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We discuss two new observational techniques that use observations of the cosmic microwave background (CMB) to place constraints on the mass, distance, and size distribution of small objects in the Kuiper Belt and inner Oort Cloud, collectively known as trans-Neptunian objects (TNOs). The first new technique considers the spectral distortion of the isotropic, or monopole, CMB by TNOs that have been heated by solar radiation to temperatures above that of the CMB. We apply this technique to the spectral measurements of the CMB by the Far Infrared Absolute Spectrophotometer on the Cosmic Background Explorer. The second technique utilizes the change in amplitude of the TNO signal due to the orbital motion of the observer to separate the TNO signal from the invariant extragalactic CMB and construct a map of the mass distribution in the outer solar system. We estimate the ability of future CMB experiments to create such a map.

Item Type:Article
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Steinhardt, Charles L.0000-0003-3780-6801
Additional Information:© 2007 The American Astronomical Society. Received 2006 October 31; accepted 2007 May 4. The authors would like to thank an anonymous referee whose helpful comments improved the quality of this manuscript. We would like to thank C. Alcock, M. Brown,D. Finkbeiner, D. Fixsen, P. Goldreich, C. Hirata, M. Holman, S. Kenyon, A. Loeb, L. Page, M. Pan, G. Rybicki, R. Sari, D. Spergel, and P. Thaddeus for helpful conversations. D. B. thanks the hospitality of the Harvard Institute for Theory and Computation where some of this work was completed and acknowledges financial support from the Betty and Gordon Moore Foundation. C. L. S. was supported under the National Science Foundation Graduate Research Fellowship Program. C. H. B. acknowledges support from the Harvard Origins of Life Initiative.
Group:Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Betty and Gordon Moore FoundationUNSPECIFIED
NSF Graduate Research Fellowship ProgramUNSPECIFIED
Harvard Origins of Life InitiativeUNSPECIFIED
Subject Keywords:cosmic microwave background; kuiper belt; oort cloud
Issue or Number:2
Record Number:CaltechAUTHORS:20091014-105356620
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Official Citation:What Can the Cosmic Microwave Background Tell Us about the Outer Solar System? Daniel Babich, Cullen H. Blake, and Charles L. Steinhardt 2007 ApJ 669 1406-1413 doi: 10.1086/521913
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:16345
Deposited By: Tony Diaz
Deposited On:20 Oct 2009 17:24
Last Modified:09 Mar 2020 13:19

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