Astronomy and Astrophysics – Astrophysics
Scientific paper
2002-09-11
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures. Submitted to the proceedings of the 8th IAU Asian-Pasific Regional Meeting Volume 1
Scientific paper
We present the X-ray analysis and the mass estimation of the lensing cluster of galaxies CL0024+17 with Chandra. We found that the temperature profile is consistent with being isothermal and the average X-ray temperature is 4.47 (+0.83, -0.54) keV. The X-ray surface brightness profile is represented by the sum of emissions associated with the central three bright elliptical galaxies and the emission from intracluster medium (ICM) which can be well described by a spherical beta-model. Assuming the ICM to be in the hydrostatic equilibrium, we estimated the X-ray mass and found it is significantly smaller than the strong lensing mass by a factor of 3.
Hattori Makoto
Mitsuda Kazuhisa
Ota Naomi
Pointecouteau Etienne
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