Low-frequency radio observations of the galaxy cluster CIZA J2242.8+5301

Weeren, RJ van; Intema, Huib; Rottgering, H.J.A.; Bruggen, M.; Hoeft, M.

Access Status

Open access via publisher

Authors

Weeren, RJ van

Intema, Huib

Rottgering, H.J.A.

Bruggen, M.

Hoeft, M.

Type

Journal Article

Metadata

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Citation

Weeren, R.J.V. and Intema, H.T. and Rottgering, H.J.A. and Bruggen, M. and Hoeft, M. 2010. Low-frequency radio observations of the galaxy cluster CIZA J2242.8+5301. Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society. Vol. 82 (3): pp. 569-572.

Additional URLs

http://sait.oat.ts.astro.it/MSAIt820311/index.html

Faculty

Faculty of Science and Engineering

School

School of Elec Eng, Comp and Math Sci (EECMS)

URI

http://hdl.handle.net/20.500.11937/76031

Collection

Curtin Research Publications

Abstract

Some disturbed galaxy clusters host diffuse elongated radio sources, also called radio relics. It is proposed that these relics trace shock waves in the intracluster medium (ICM). Within the shock waves, generated by cluster merger events, particles are accelerated to relativistic energies, and in the presence of a magnetic field synchrotron radiation will be emitted. CIZA J2242.8+5301 is a disturbed galaxy cluster hosting complex diffuse radio emission, including a so-called double radio relic. Here we present new Giant Metrewave Radio Telescope (GMRT) radio observations of CIZA J2242.8+5301 at 325 and 150 MHz. We detect the double radio relic at 150 and 325 MHz. The very deep 150 MHz image reveals the presence of large-scale diffuse emission between the two radio relics.