2015A&A...584A..63S

Query : 2015A&A...584A..63S

2015A&A...584A..63S - Astronomy and Astrophysics, volume 584A63-63 (2015/12-1)

The projected gravitational potential of the galaxy cluster MACS J1206 derived from galaxy kinematics.

STOCK D., MEYER S., SARLI E., BARTELMANN M., BALESTRA I., GRILLO C., KOEKEMOER A., MERCURIO A., NONINO M. and ROSATI P.

Abstract (from CDS):

We reconstruct the radial profile of the projected gravitational potential of the galaxy cluster MACS J1206 from 592 spectroscopic measurements of velocities of cluster members. To accomplish this, we use a method we have developed recently based on the Richardson-Lucy deprojection algorithm and an inversion of the spherically-symmetric Jeans equation. We find that, within the uncertainties, our reconstruction agrees very well with a potential reconstruction from weak and strong gravitational lensing as well as with a potential obtained from X-ray measurements. In addition, our reconstruction is in good agreement with several common analytic profiles of the lensing potential. Varying the anisotropy parameter in the Jeans equation, we find that isotropy parameters, which are either small, β≲0.2, or decrease with radius, yield potential profiles that strongly disagree with that obtained from gravitational lensing. We achieve the best agreement between our potential profile and the profile from gravitational lensing if the anisotropy parameter rises steeply to β≃0. 6 within ≃0.5Mpc and stays constant further out.

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Journal keyword(s): galaxies: clusters: general - galaxies: kinematics and dynamics - dark matter - gravitational lensing: strong - gravitational lensing: weak

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	MCS J1206.2-0847	ClG	12 06 12.2	-08 48 02						~	286	0

Query : 2015A&A...584A..63S

Basic data :

MCS J1206.2-0847 -- Cluster of Galaxies
Other object types:	`ClG (2004A&A,MCS,...)`, `gLe (2012ApJ)`, `C?G (2014A&A,XCLASS)`, `X (2020ApJ,1RXS)`
ICRS coord. (ep=J2000) :	`12 06 12.2 -08 48 02 (X-ray) [ ] E 2008ApJ...682..821C`
FK4 coord. (ep=B1950 eq=1950) :	`12 03 38.2 -08 31 20 [ ]`
Gal coord. (ep=J2000) :	`284.3981 +52.4358 [ ]`
Radial velocity / Redshift / cz :	`V(km/s) 104717 [~] / z(spectroscopic) 0.440 [~] / cz 131909 [~] (Opt) D 2010MNRAS.406.1318H`
Angular size (arcmin):	`10.333333015 10.333333015 0 (Xray) E` `2021A&A...652A..12K`

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`MCS J1206.2-0847`	`PSZ1 G284.43+52.44`	`RXC J1206.2-0848`
`MCXC J1206.2-0848`	`PSZ2 G284.41+52.45`	`1RXS J120613.0-084743`
`PLCKESZ G284.46+52.43`	`PSZRX G284.42+52.43`	`XCLASS 2190`

References (286 between 1850 and 2026) (Total 286)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : MCS J1206.2-0847

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RXC J1206.2-0848 1RXS J120613.0-084743

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