A dark matter disc in the Milky Way

Permanent URL to this publication:

Read, J I; Debattista, V P; Agertz, O; Mayer, L; Bruch, T; Governato, F; Baudis, L; Brooks, A M; Lake, G (2009). A dark matter disc in the Milky Way. In: Hunting for the Dark: the Hidden Side of Galaxy Formation, Qawra, Malta, 19 October 2009 - 23 October 2009, 391-394.

Accepted Version
View at publisher
Published Version


Dark matter direct detection experiments need to know the local phase space density of dark matter fdm(r,v,t) in order to derive dark matter particle properties. To date, calculations for fdm(r,v,t) have been based on simulations that model the dark matter alone. Here we include the influence of the baryonic matter. We find that a star/gas disc at high redshift (z~1) causes merging satellites to be preferentially dragged towards the disc plane. This results in an accreted dark matter disc that contributes ~0.25-1 times the non-rotating halo density at the Solar position. We discuss the impact of the dark disc on dark matter direct detection experiments, and how we might be able to detect it in future Galactic surveys.


3 citations in Web of Science®
3 citations in Scopus®
Google Scholar™



32 downloads since deposited on 03 Mar 2011
4 downloads since 12 months

Detailed statistics

Additional indexing

Item Type:Conference or Workshop Item (Paper), refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Event End Date:23 October 2009
Deposited On:03 Mar 2011 14:03
Last Modified:20 May 2016 07:19
Publisher:American Institute of Physics
Series Name:AIP Conference Proceedings
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:10.1063/1.3458542
Related URLs: (Organisation)

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page