A dark matter disc in the milky way
(2010) International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation" 1240. p.391-394- Abstract
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... (More)
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.
(Less)
- author
- Read, J. I. ; Bruch, T. ; Baudis, L. ; Debattista, V. P. ; Agertz, O. LU ; Mayer, L. ; Brooks, A. M. ; Governato, F. ; Peter, A. H.G. and Lake, G.
- publishing date
- 2010-01-01
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- host publication
- Hunting for the Dark : The Hidden Side of Galaxy Formation - Proceedings of the International Conference - The Hidden Side of Galaxy Formation - Proceedings of the International Conference
- volume
- 1240
- pages
- 4 pages
- publisher
- American Institute of Physics (AIP)
- conference name
- International Conference "Hunting for the Dark: The Hidden Side of Galaxy Formation"
- conference location
- Qawra, Malta
- conference dates
- 2009-10-19 - 2009-10-23
- external identifiers
-
- scopus:77955706714
- ISBN
- 9780735407862
- DOI
- 10.1063/1.3458542
- language
- English
- LU publication?
- no
- id
- b60ecfdb-f65c-44a8-b349-cea2fc96489e
- date added to LUP
- 2019-02-07 11:22:34
- date last changed
- 2022-01-31 17:27:17
@inproceedings{b60ecfdb-f65c-44a8-b349-cea2fc96489e,
abstract = {{<p>Dark matter direct detection experiments need to know the local phase space density of dark matter f<sub>dm</sub>(r,v,t) in order to derive dark matter particle properties. To date, calculations for f<sub>dm</sub>(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.</p>}},
author = {{Read, J. I. and Bruch, T. and Baudis, L. and Debattista, V. P. and Agertz, O. and Mayer, L. and Brooks, A. M. and Governato, F. and Peter, A. H.G. and Lake, G.}},
booktitle = {{Hunting for the Dark : The Hidden Side of Galaxy Formation - Proceedings of the International Conference}},
isbn = {{9780735407862}},
language = {{eng}},
month = {{01}},
pages = {{391--394}},
publisher = {{American Institute of Physics (AIP)}},
title = {{A dark matter disc in the milky way}},
url = {{http://dx.doi.org/10.1063/1.3458542}},
doi = {{10.1063/1.3458542}},
volume = {{1240}},
year = {{2010}},
}