Constraining a Thin Dark Matter Disk with Gaia
Name
PhysRevLett.121.081101.pdf
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289.27 KB
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Adobe PDF
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Author(s)
Schutz, Katelin
Lin, Tongyan
Safdi, Benjamin R.
Wu, Chih-Liang
Date Issued
August 2018
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Schutz, Katelin, et al. “Constraining a Thin Dark Matter Disk with Gaia.” Physical Review Letters, vol. 121, no. 8, Aug. 2018. © 2018 American Physical Society
Version
Final published version
Abstract
If a component of the dark matter has dissipative interactions, it could collapse to form a thin dark disk in our Galaxy that is coplanar with the baryonic disk. It has been suggested that dark disks could explain a variety of observed phenomena, including periodic comet impacts. Using the first data release from the Gaia space observatory, we search for a dark disk via its effect on stellar kinematics in the Milky Way. Our new limits disfavor the presence of a thin dark matter disk, and we present updated measurements on the total matter density in the Solar neighborhood.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.121.081101
