2001A&A...365L..80A

Query : 2001A&A...365L..80A

2001A&A...365L..80A - Astronomy and Astrophysics, volume 365L80-86 (2001/1-1)

Measuring cluster temperature profiles with XMM/EPIC.

ARNAUD M., NEUMANN D.M., AGHANIM N., GASTAUD R., MAJEROWICZ S. and HUGHES J.P.

Abstract (from CDS):

Using the PV observation of A1795, we illustrate the capability of XMM-EPIC to measure cluster temperature profiles, a key ingredient for the determination of cluster mass profiles through the equation of hydrostatic equilibrium. We develop a methodology for spatially resolved spectroscopy of extended sources, adapted to XMM background and vignetting characteristics. The effect of the particle induced background is discussed. A simple unbiased method is proposed to correct for vignetting effects, in which every photon is weighted according to its energy and location on the detector. We were able to derive the temperature profile of A1795 up to 0.4 times the virial radius. A significant and spatially resolved drop in temperature towards the center (r<200kpc) is observed, which corresponds to the cooling flow region of the cluster. Beyond that region, the temperature is constant with no indication of a fall-off at large radii out to 1.2Mpc.

Abstract Copyright: ∼

Journal keyword(s): galaxies: clusters: individual: A1795 - galaxies: intergalactic medium - Cosmology: observations - Cosmology: dark matter - 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 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0

Query : 2001A&A...365L..80A

Basic data :
ACO 1795 -- Cluster of Galaxies
Other object types: otypes_help 		ClG (2011ApJ,ACO,...), X (2A,3A,...), C?G (2014A&A,XCLASS), gLe (2011A&A), gam (INTREF)
ICRS coord. (ep=J2000) : 		13 48 47.4 +26 34 55 (X-ray) [ 5000 5000 90 ] E 2022A&A...661A..38P
FK4 coord. (ep=B1950 eq=1950) : 		13 46 28.8 +26 49 49 [ 5000 5000 90 ]
Gal coord. (ep=J2000) : 		033.7514 +77.2037 [ 5000 5000 90 ]
Radial velocity / Redshift / cz : 		V(km/s) 18293 [~] / z(spectroscopic) 0.0630 [~] / cz 18887 [~]
   (Opt) C 2016ApJ...819...63R
Angular size (arcmin): 		23.333333969 23.333333969 0 (Xray) E 2021A&A...652A..12K
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 176 		Display criteria :

Identifiers (39) :
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ACO 1795 1H 1348+267 RBS 1318 XSS J13486+2642
2A 1346+266 H 1347+268 RXC J1348.8+2635 [AWK2020] 74
3A 1346+269 INTREF 578 RXGCC 531 [B2017] 1781
BAX 207.2522+26.5852 2MAXI J1348+267 1RXS J134852.6+263541 [F81] 278
ClG 1346.7+2650 MCXC J1348.8+2635 SRGA J134847.4+263455 [OKM2018] SWIFT J1349.1+2658
2E 3142 PBC J1348.7+2635 2U 1348+24 [RRB2014] RM J134853.3+263613.4
2E 1346.5+2650 PLCKESZ G033.78+77.16 3U 1349+24 [S85] 272
1ES 1346+26.8 PSZ1 G033.84+77.17 4U 1348+25 [SPD2011] 3261
EXSS 1346.5+2650 PSZ2 G033.81+77.18 1WGA J1348.8+2635 [WHL2009] J134852.5+263534
FR 82 PSZRX G033.84+77.18 XCLASS 1683

References (1330 between 1850 and 2026) (Total 1330)
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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Collections of Measurements Description of Measurements

Velocities : 9   

   

Observing logs
Herschel : 10    ISO : 27    IUE : 7    XMM : 3   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : ACO 1795

Link by name to the catalogue in VizieR :

ACO 1795 2E 3142 RXC J1348.8+2635 1RXS J134852.6+263541

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