Correlations of Mass Distributions between Dark Matter and Visible Matter. KIAS-APCTP-DMRC Workshop on “The Dark Side of the Universe” May 24, 2005. Yuriy Mishchenko and Chueng-Ryong Ji NC State University Raleigh, NC. Motivation.
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Correlations of Mass Distributionsbetween Dark Matter and Visible Matter
KIAS-APCTP-DMRC Workshop on
“The Dark Side of the Universe”
May 24, 2005
Yuriy Mishchenko and Chueng-Ryong Ji
NC State University Raleigh, NC
Strong Gravitational Lensing in Galaxy Clusters
provide convincing evidences of Dark Matter.
Y.Mishchenko and C.Ji, PRD68, 063503 (2003)
-Galaxy Clusters CL0024+1654
-Mass Map by Tyson et al.
-Simple but general theromodynamic analysis
-Spiral Galaxies with different luminosities
-Consistency with the thermodynamic analysis
Einstein Cross Q2237+0305
from J. Tyson, G. Kochanski, I. Dell’Antonio, astro-ph/9801193
J. Tyson, G. Kochanski, I. Dell’Antonio, astro-ph/9801193
J. Tyson, G. Kochanski, I. Dell’Antonio, 1998:
Correlation between Dark Matter and Visible Matter
Flat Region around 100 kpc
anomalous flat region at about 100kpc in the visible mass profile
Log-Log Linear Correlation
Rotation Curve represents gas/stars circular orbit velocity as function of distance from the galaxy’s center
spiral galaxy NGC2403
M. Persic, P. Salucci, F. Stel, 1996:
Universal Rotation Curve of Spiral Galaxy
Exponential Thin Disk
It corresponds to T~105 K consistent with the temperature
of the interstellar gas.
Log-Log-Linear Correlation in Spiral Galaxies
best fit values of a for different luminositiesM
…remember obtained for CL0024+1654,
We observed Log-Log-Linear correlation with essentially the same correlation coefficient in different spiral galaxies and a galaxy cluster.
This is a remarkable coincidence…
How do we interprete?
that the molar mass ratio varies in a precise correlation
with the temperature ratio to make kappa constant both
for the galaxy clusters and the spiral galaxies.
Massive neutrinos and/or axions < 25MeV
WIMP ~ 10GeV-1TeV
SUSY lightest particles(e.g. neutralino)>30GeV
distribution, we find K = 2.1~4.4 which indicate
the typical mass scale of dark matter particles
around the order of 100 MeV.
any relation between the dark matter and QCD vacuum
Things to do:
C.Ji, Gungwon Kang and Jungjai Lee, work in progress…