English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Magnetic fields and extraordinarily bright radio emission in the X-ray faint galaxy group MRC 0116 + 111

Mernier, F., Werner, N., Bagchi, J., Simionescu, A., Boehringer, H., Allen, S. W., et al. (2019). Magnetic fields and extraordinarily bright radio emission in the X-ray faint galaxy group MRC 0116 + 111. Monthly Notices of the Royal Astronomical Society, 486(4), 5430-5440. doi:10.1093/mnras/stz1228.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-F02E-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-F02F-9
Genre: Journal Article

Files

show Files
hide Files
:
Magnetic fields and extraordinarily bright radio emission in the X-ray faint galaxy group MRC 0116 + 111.pdf (Any fulltext), 2MB
 
File Permalink:
-
Name:
Magnetic fields and extraordinarily bright radio emission in the X-ray faint galaxy group MRC 0116 + 111.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Mernier, F., Author
Werner, N., Author
Bagchi, J., Author
Simionescu, A., Author
Boehringer, H.1, Author              
Allen, S. W., Author
Jacob, J., Author
Affiliations:
1High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society, ou_159890              

Content

show
hide
Free keywords: -
 Abstract: MRC 0116 + 111 is a nearby (z = 0.132) poor galaxy group, which was previously known for exhibiting a bright diffuse radio emission with no central point-like source, presumably related to a past activity of the active galactic nucleus (AGN) in its central cD galaxy. Here, we present an X-ray observation (∼30 ks of cleaned XMM–Newton/EPIC exposure) of this system, allowing us for the first time a detailed comparison between the thermal and non-thermal components of its intragroup medium (IGrM). Remarkably, we find that the radio-to-X-ray luminosity ratio is among the highest ever observed for a diffuse extragalactic source so far, while the extent of the observed radio emission is about three times larger than its observed soft X-ray emission. Although powerful AGN activity may have disturbed the dynamics of the thermal IGrM in the form of turbulence, possibly re-energizing part of the relativistic electron population, the gas properties lie within the LX–T scaling relation established previously for other groups. The upper limit we find for the non-thermal inverse-Compton X-ray emission translates into a surprisingly high lower limit for the volume-averaged magnetic field of the group (≥4.3 μG). Finally, we discuss some interesting properties of a distant (z ≃ 0.525) galaxy cluster serendipitously discovered in our EPIC field of view.

Details

show
hide
Language(s):
 Dates: 2019-05-02
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1093/mnras/stz1228
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Monthly Notices of the Royal Astronomical Society
  Other : Mon. Not. R. Astron. Soc.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Oxford : Oxford University Press
Pages: - Volume / Issue: 486 (4) Sequence Number: - Start / End Page: 5430 - 5440 Identifier: ISSN: 1365-2966
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150