Abell 1914 multiwavelength radio images Virtual Observatory Resource

Authors
  1. Mandal S.
  2. Intema H.T.
  3. Shimwell T.W.
  4. van Weeren R.J.
  5. Botteon A.,Roettgering H.J.A.
  6. Hoang D.N.
  7. Brunetti G.
  8. de Gasperin F.
  9. Giacintucci S.,Hoekstra H.
  10. Stroe A.
  11. Brueggen M.
  12. Cassano R.
  13. Shulevski A.
  14. Drabent A.,Rafferty D.
  15. Published by
    CDS
Abstract

A number of radio observations have revealed the presence of large synchrotron-emitting sources associated with the intra-cluster medium. There is strong observational evidence that the emitting particles have been (re-)accelerated by shocks and turbulence generated during merger events. The particles that are accelerated are thought to have higher initial energies than those in the thermal pool but the origin of such mildly relativistic particles remains uncertain and needs to be further investigated. The galaxy cluster Abell 1914 is a massive galaxy cluster in which X-ray observations show clear evidence of merging activity. We carried out radio observations of this cluster with the LOw Frequency ARay (LOFAR) at 150MHz and the Giant Metrewave Radio Telescope (GMRT) at 610MHz. We also analysed Very Large Array (VLA) 1.4GHz data, archival GMRT 325MHz data, CFHT weak lensing data and Chandra observations. Our analysis shows that the ultra-steep spectrum source (4C38.39; {alpha}<~-2), previously thought to be part of a radio halo, is a distinct source with properties that are consistent with revived fossil plasma sources. Finally, we detect some diffuse emission to the west of the source 4C38.39 that could belong to a radio halo.

Keywords
  1. galaxy-clusters
  2. radio-sources
Bibliographic source Bibcode
2019A&A...622A..22M
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/622/A22
IVOA Identifier IVOID
ivo://CDS.VizieR/J/A+A/622/A22
Document Object Identifer DOI
doi:10.26093/cds/vizier.36220022

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/622/A22
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/622/A22
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/622/A22
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/0?
https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/622/A22/list?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/622/A22/list?
Web browser access HTML
https://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/A+A/622/A22

History

2019-07-09T09:34:01Z
Resource record created
2019-07-09T09:34:01Z
Created
2019-10-23T12:57:58Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr