2010A&A...517A..10C

Query : 2010A&A...517A..10C

2010A&A...517A..10C - Astronomy and Astrophysics, volume 517A10-10 (2010/7-1)

The radio-X-ray luminosity correlation of radio halos at low radio frequency. Application of the turbulent re-acceleration model.

CASSANO R.

Abstract (from CDS):

We show expectations on the radio-X-ray luminosity correlation of radio halos at 120MHz. According to the turbulent re-acceleration scenario, we expect that low-frequency observations can detect a new population of radio halos that due to their ultra-steep spectra are missed by present observations at ∼GHz frequencies. These radio halos are also supposed to be less luminous than presently observed halos hosted in clusters with the same X-ray luminosity. With Monte Carlo procedures we show that these ultra-steep spectrum halos at 120MHz cause a steepening and a broadening of the correlation between the synchrotron power and the cluster X-ray luminosity with respect to that observed at 1.4GHz. We investigate the role of future low-frequency radio surveys and find that the upcoming LOFAR surveys will be able to test these expectations.

Abstract Copyright: ∼

Journal keyword(s): radiation mechanisms: non-thermal - galaxies: clusters: general - radio continuum: general - X-rays: 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 521	ClG	04 54 08.6	-10 14 39						~	279	0

Query : 2010A&A...517A..10C

Basic data :

ACO 521 -- Cluster of Galaxies
Other object types:	`ClG (2004A&A,ACO,...)`, `gLe (2001ApJ)`, `C?G (2014A&A,XCLASS)`, `X (2E,RBS,...)`
ICRS coord. (ep=J2000) :	`04 54 08.6 -10 14 39 [ ] E 2006NewA...11..437G`
FK4 coord. (ep=B1950 eq=1950) :	`04 51 46.5 -10 19 28 [ ]`
Gal coord. (ep=J2000) :	`208.8335 -30.6645 [ ]`
Radial velocity / Redshift / cz :	`V(km/s) 65122 [~] / z(spectroscopic) 0.247 [~] / cz 74049 [~] (Opt) D 2019ApJS..240...39G`
Angular size (arcmin):	`5.0 5.0 ~ (Rad) D` `2015ApJ...813...77Y`

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`ACO 521`	`2E 0451.7-1017`	`PSZRX G208.82-30.67`	`XCLASS 3114`
`ACT-CL J0454.1-1013`	`MCXC J0454.1-1014`	`RBS 604`
`BAX 073.5422-10.2531`	`PSZ1 G208.80-30.67`	`RXC J0454.1-1014`
`2E 1171`	`PSZ2 G208.80-30.67`	`1RXS J045409.6-101432`

References (279 between 1850 and 2026) (Total 279)
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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External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : ACO 521

Link by name to the catalogue in VizieR :

ACO 521 2E 1171 RXC J0454.1-1014 1RXS J045409.6-101432

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