NDLI: Determining the dark matter content of dwarfs and dwarfs spheroidal galaxies in the local group cluster using the CAS parameters

Content Provider	IEEE Xplore Digital Library
Author	Ibrahim, U.F.S.U. Abidin, Z.Z. Hashim, N. Hassan, M.S.R. Hamidi, Z.S. Ibrahim, Z.A.
Copyright Year	2011
Description	Author affiliation: Faculty of Applied Sciences, Universiti Teknologi MARA, UiTM S. Alam, Selangor, Malaysia (Hamidi, Z.S.) \|\| Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia (Ibrahim, U.F.S.U.; Abidin, Z.Z.; Hashim, N.; Hassan, M.S.R.; Ibrahim, Z.A.)
Abstract	In this paper, we will discuss the CAS parameters (concentration, asymmetry and clumpiness) which are used to determine the non-parametric structures of dwarf samples to calculate the dark matter masses of dwarfs and dwarfs spheroidal galaxies in the Local Group Cluster. Dwarf galaxies are the most numerous galaxies in our Universe and the Milky Way is surrounded by dozens of them. Measuring the dark matter content of dwarf galaxies has mainly been carried out using kinematic measures of individual stars in Local Group systems. However, if the galaxy is perturbed by tides, the assumption that it is in virial equilibrium will be incorrect. A new method which was introduced by Samantha J. Penny et al. (2008) for measuring the dark matter content of dwarf Ellipticals in the Perseus Cluster is based on the radius of the dwarf, the projected distance of the dwarf from the cluster centre and the total mass of the cluster interior to it. We will present this new method and use it to determine the dark matter content of dwarfs and dwarfs spheroidal galaxies in the Local Group. We will also describe our new method in determining Dark Matter Halos content in Galaxy Clusters.
Starting Page	182
Ending Page	184
File Size	409525
Page Count	3
File Format	PDF
ISBN	9781457705632
e-ISBN	9781457705649
e-ISBN	9781457705625
DOI	10.1109/IConSpace.2011.6015879
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-12
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio Astronomy Radio astronomy Hydrogen Telescopes Extraterrestrial measurements Educational institutions Cosmology Frequency measurement Dark Matter
Content Type	Text
Resource Type	Article

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