Query : 2005A&A...429...49C

2005A&A...429...49C - Astronomy and Astrophysics, volume 429, 49-64 (2005/1-1)

Some astrophysical implications of dark matter and gas profiles in a new galaxy cluster model.


Abstract (from CDS):

Recently, Rasia et al. (2004MNRAS.351..237R) proposed a new dynamical model for the mass density profile of clusters of galaxies as a result of a set of high resolution hydrodynamical simulations of structure formation. We investigate the lensing properties of this model evaluating the deflection angle, the lensing potential and the amplification of the images. We give particular attention to the structure and position of the critical curves to see whether this model is able to produce radial and tangential arcs. With this aim we also investigate the effect of taking into account the brightest cluster galaxy in the lensing potential and the deviations from spherical symmetry mimicked by an external shear. We also analyze the implication of the gas density and temperature profiles of the (Rasia et al., 2004MNRAS.351..237R) model for the properties of the X-ray emission and the comptonization parameter that determines the CMBR temperature decrement due to the Sunyaev-Zel'dovich effect.

Abstract Copyright:

Journal keyword(s): galaxies: clusters: general - gravitational lensing - dark matter

CDS comments: RX J1133 not identified (incomplete format).

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 QSO B1001+4127 QSO 10 04 34.9243842216 +41 12 42.771018060   19.14 19.03     ~ 188 1
2 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 802 1
3 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 376 0

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