2007MNRAS.379.1325X

Query : 2007MNRAS.379.1325X

2007MNRAS.379.1325X - Mon. Not. R. Astron. Soc., 379, 1325-1332 (2007/August-3)

On the width of cold fronts in clusters of galaxies due to conduction.

XIANG F., CHURAZOV E., DOLAG K., SPRINGEL V. and VIKHLININ A.

Abstract (from CDS):

We consider the impact of thermal conduction in clusters of galaxies on the (unmagnetized) interface between a cold gaseous cloud and a hotter gas flowing over the cloud (the so-called cold front). We argue that near the stagnation point of the flow conduction creates a spatially extended layer of constant thickness Δ, where Δ is of the order of, where R is the curvature radius of the cloud, U is the velocity of the flow at infinity and k is the conductivity of the gas. For typical parameters of the observed fronts, one finds Δ ≪ R. The formation time of such a layer is ∼R/U. Once the layer is formed, its thickness only slowly varies with the time and the quasi-steady layer may persist for many characteristic time-scales. Based on these simple arguments, one can use the observed width of the cold fronts in galaxy clusters to constrain the effective thermal conductivity of the intra-cluster medium.

Journal keyword(s): conduction - hydrodynamics - galaxies: clusters: general

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	ACO 3667	ClG	20 12 33.68	-56 50 26.3						~	676	1

Query : 2007MNRAS.379.1325X

Basic data :

ACO 3667 -- Cluster of Galaxies
Other object types:	`ClG (2004A&A,ACO,...)`, `X (2E,1ES,...)`, `C?G (2014A&A,XCLASS)`, `gLe (2011A&A)`, `G (AM)`
ICRS coord. (ep=J2000) :	`20 12 33.68 -56 50 26.3 [ ] E 2003A&A...403..247F`
FK4 coord. (ep=B1950 eq=1950) :	`20 08 33.52 -56 59 27.0 [ ]`
Gal coord. (ep=J2000) :	`340.85089 -33.39874 [ ]`
Radial velocity / Redshift / cz :	`V(km/s) 16036 [1499] / z(spectroscopic) 0.0550 [0.0050] / cz 16489 [1499] (Opt) D 2022A&A...658A..59X`
Angular size (arcmin):	`20.0 20.0 ~ (Rad) D` `2015ApJ...813...77Y`

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`ACO 3667`	`2MAXI J2012-568`	`QW 2007-569`	`Str 2008-569`
`ACT-CL J2012.4-5649`	`MCXC J2012.5-5649`	`QW 103`	`SWIFT J2012.0-5648`
`AM 2006-564`	`PBC J2011.8-5650`	`RBS 1673`	`XCLASS 1072`
`BAX 303.1254-56.8165`	`PLCKESZ G340.88-33.34`	`RXC J2012.5-5649`	`XSS J20114-5648`
`2E 4331`	`PSZ1 G340.86-33.36`	`RXGCC 816`	`[DBG99] 73`
`2E 2008.4-5658`	`PSZ2 G340.88-33.36`	`1RXS J201238.3-565038`	`[FS2003] 1066`
`1ES 2008-57.0`	`PSZRX G340.85-33.39`	`SC 2008-56.8`	`[T87] 2006.0-5639`
`EXSS 2008.6-5658`	`PSZSPT J2012-5649`	`SPT-CL J2012-5649`	`EQ 2008-57`

References (676 between 1850 and 2026) (Total 676)
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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Data at NED - NASA/IPAC Extragalactic Database : ACO 3667

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ACO 3667 2E 4331 RXC J2012.5-5649 1RXS J201238.3-565038

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