Journal
PHYSICAL REVIEW LETTERS
Volume 121, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.081101
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Funding
- National Science Foundation
- Hertz Foundation Fellowship
- Department of Energy [DE-AC02-05CH11231]
- NSF [PHY-1316783, PHY-1607611]
- U.S. Department of Energy [DE-SC00012567, DE-SC0013999]
- Taiwan Top University Strategic Alliance (TUSA) Fellowship
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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.
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