CDS

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

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

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

goto Full paper

goto View the references in ADS

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 - 2023 		#notes
1 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1228 0

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

Basic data :
ACO 1795 -- Cluster of Galaxies
Origin of the objects types :

(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases

Other object types: 		ClG (2011ApJ,ACO,...), X (2A,3A,...), C?G (2014A&A), gLe (2011A&A), gam (INTREF)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
ICRS coord. (ep=J2000) : 		13 49 00.5 +26 35 07 [ ] D 2001ApJ...554L.129M
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
FK4 coord. (ep=B1950 eq=1950) : 		13 46 42.0 +26 50 00 [ ]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
  • ra dec : right ascension and declination (unit and frame defined according to your Output Options)
    Grey values are increasing the original precision due to the computation of frame transformations
  • (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
  • [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
    position angle (in degrees North celestial pole to East)
  • quality : flag of quality
    • E ≥ 10"
    • D : 1-10" (and some old data)
    • C : 0.1-1"
    • B : 0.01-0.1" + 2MASS, Tyc
    • A : VLBI, Hipparcos
  • bibcode : bibcode of the coordinates reference
Gal coord. (ep=J2000) : 		033.7880 +77.1553 [ ]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
  • value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
    (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
  • [error] : error of the corresponding value displayed before
  • (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown)
  • quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality)
  • bibcode : bibcode of the value's origin
Radial velocity / Redshift / cz : 		V(km/s) 18293 [~] / z(spectroscopic) 0.0630 [~] / cz 18887 [~]
   (Opt) C 2016ApJ...819...63R
SIMBAD within arcmin
', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR.
The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding.
Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!). sed-help-icon

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

The count displayed here is the number of children objects.
The list obtained by clicking the button may be larger, as some children may be linked with different references or probability.

%This number is the number of distinct objets linked, by using this button, you will obtain all links (may be more than one) from that object to his children

: 145 		Display criteria :

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (35) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

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

References (1228 between 1850 and 2023) (Total 1228)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements


velocities : 5   

   

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

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

Currently no annotations available

add an annotation to this object

report an error concerning the data of this object

To bookmark this query, right click on this link: simbad:objects in 2001A&A...365L..80A and select 'bookmark this link' or equivalent in the popup menu

2023.06.09-22:57:01

© Université de Strasbourg/CNRS

    • Contact