2022A&A...661A..36S


Query : 2022A&A...661A..36S

2022A&A...661A..36S - Astronomy and Astrophysics, volume 661A, 36-36 (2022/5-1)

Studying the merging cluster Abell 3266 with eROSITA.

SANDERS J.S., BIFFI V., BRUGGEN M., BULBUL E., DENNERL K., DOLAG K., ERBEN T., FREYBERG M., GATUZZ E., GHIRARDINI V., HOANG D.N., KLEIN M., LIU A., MERLONI A., PACAUD F., RAMOS-CEJA M.E., REIPRICH T.H. and ZUHONE J.A.

Abstract (from CDS):

Abell 3266 is one of the X-ray brightest galaxy clusters in the sky and is a well-known merging system. Using the ability of the eROSITA telescope onboard SRG (Spectrum Rontgen Gamma) to observe a wide field with a single pointing, we analysed a new observation of the cluster out to a radius of R200. The X-ray images highlight sub-structures present in the cluster, including the north-east-south-west merger seen in previous ASCA, Chandra, and XMM-Newton data, a merging group towards the north-west, and filamentary structures between the core and one or more groups towards the west. We compute spatially resolved spectroscopic maps of the thermodynamic properties of the cluster, including the metallicity. The merging subclusters are seen as low entropy material within the cluster. The filamentary structures could be the rims of a powerful outburst of an active galactic nucleus, or most likely material stripped from the western group(s) as they passed through the cluster core. Seen in two directions is a pressure jump at a radius of 1.1 Mpc, which is consistent with a shock with a Mach number of ∼1.5-1.7. The eROSITA data confirm that the cluster is not a simple merging system, but it is made up of several subclusters which are merging or will shortly merge. We computed a hydrostatic mass from the eROSITA data, finding good agreement with a previous XMM-Newton result. With this pointing we detect several extended sources, where we find secure associations between z = 0.36-1.0 for seven of them, that is background galaxy groups and clusters, highlighting the power of eROSITA to find such systems.

Abstract Copyright: © J. S. Sanders et al. 2022

Journal keyword(s): galaxies: clusters: intracluster medium - galaxies: clusters: individual: Abell 3266 - X-rays: galaxies: clusters

Simbad objects: 21

goto Full paper

goto View the references in ADS

Number of rows : 21
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 SRGE J042734.6-611613 X 04 27 34.6 -61 16 14           ~ 1 0
2 SRGE J042746.8-611858 X 04 27 46.8 -61 18 58           ~ 1 0
3 SRGE J042900.3-610243 X 04 29 00.3 -61 02 44           ~ 1 0
4 [DJC2017] A3266 ID 4 GrG 04 29 29.85 -61 13 36.2           ~ 2 0
5 SRGE J042943.9-611038 X 04 29 43.9 -61 10 38           ~ 1 0
6 [DJC2017] A3266 ID 6 GrG 04 29 59.94 -61 24 07.4           ~ 2 0
7 [DJC2017] A3266 ID 5 GrG 04 30 37.42 -61 19 27.9           ~ 2 0
8 ACO 3266 ClG 04 31 11.9 -61 24 23           ~ 386 0
9 SRGE J043208.6-615106 X 04 32 08.6 -61 51 06           ~ 1 0
10 SPT-CL J0432-6150 ClG 04 32 12.6 -61 50 59           ~ 5 0
11 SRGE J043217.5-610359 X 04 32 17.5 -61 04 00           ~ 1 0
12 SRGE J043224.4-614519 X 04 32 24.4 -61 45 19           ~ 1 0
13 [DJC2017] A3266 ID 1 GrG 04 32 56.66 -61 20 44.6           ~ 2 0
14 SRGE J043317.2-614035 X 04 33 17.2 -61 40 35           ~ 1 0
15 SRGE J043324.0-610801 X 04 33 24.0 -61 08 01           ~ 1 0
16 SRGE J043327.9-612722 X 04 33 27.9 -61 27 23           ~ 1 0
17 SRGE J043432.5-612153 X 04 34 32.5 -61 21 54           ~ 1 0
18 ZwCl 0735+7421 ClG 07 41 40.3 +74 14 58     17.70     ~ 236 0
19 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6704 3
20 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1077 1
21 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 415 0

To bookmark this query, right click on this link: simbad:objects in 2022A&A...661A..36S and select 'bookmark this link' or equivalent in the popup menu


2022.08.09-15:48:57

© Université de Strasbourg/CNRS

    • Contact