# Measuring the local dark matter density

Garbari, S; Lake, G; Read, J (2009). Measuring the local dark matter density. In: Hunting for the Dark: the Hidden Side of Galaxy Formation, Qawra, Malta, 19 October 2009 - 23 October 2009, 411-412.

## Abstract

We examine systematic problems in determining the local matter density from the vertical motion of stars, i.e. the Oort limit''. Using collisionless simulations and a Monte Carlo Markov Chain technique, we determine the data quality required to detect local dark matter at its expected density. We find that systematic errors are more important than observational errors and apply our technique to Hipparcos data to reassign realistic error bars to the local dark matter density.

We examine systematic problems in determining the local matter density from the vertical motion of stars, i.e. the Oort limit''. Using collisionless simulations and a Monte Carlo Markov Chain technique, we determine the data quality required to detect local dark matter at its expected density. We find that systematic errors are more important than observational errors and apply our technique to Hipparcos data to reassign realistic error bars to the local dark matter density.

## Citations

1 citation in Web of Science®
1 citation in Scopus®

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Item Type: Conference or Workshop Item (Paper), refereed, original work 07 Faculty of Science > Institute for Computational Science 530 Physics English 23 October 2009 03 Mar 2011 13:30 20 May 2016 07:12 American Institute of Physics AIP Conference Proceedings 1240 0094-243X 978-0-7354-0786-2 Publisher DOI. An embargo period may apply. 10.1063/1.3458549 http://arxiv.org/abs/1001.1038http://opac.nebis.ch/F/?local_base=NEBIS&con_lng=GER&func=find-b&find_code=SYS&request=006162632http://www.star.uclan.ac.uk/malta2009/index.shtml (Organisation)
Permanent URL: http://doi.org/10.5167/uzh-41489