THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65

Van Weeren, R. J.; Jones, C.; Forman, W. R.; Intema, H. T.; Lal, D. V.; Bonafede, A.; Brüggen, M.; De Gasperin, F.; Röttgering, H. J. A.; Stroe, A.; Hoeft, M.

doi:10.1088/2041-8205/781/2/L32

Title: THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65

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Abstract

Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Radio Telescope (GMRT), we report the detection of diffuse radio emission in the binary-merging cluster PLCK G147.3–16.6 located at z = 0.65. We classify the emission as a giant radio halo due to its large physical extent of about 0.9 Mpc and its low-surface brightness. We measure an integrated flux density of 7.3 ± 1.1 mJy at 610 MHz for the radio halo, resulting in a 1.4 GHz radio power of 5.1 × 10{sup 24} W Hz{sup –1}. The radio halo power is consistent with that expected from the known correlation between X-ray luminosity or the cluster integrated SZ signal and radio power. Our observations also suggest that more of these distant radio halos could be discovered with the GMRT.

Authors:

Van Weeren, R. J.; Jones, C.; Forman, W. R. ^[1]; Intema, H. T. ^[2]; Lal, D. V. ^[3]; Bonafede, A.; Brüggen, M.; De Gasperin, F. ^[4]; Röttgering, H. J. A.; Stroe, A. ^[5]; Hoeft, M. ^[6]

Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
National Radio Astronomy Observatory, 1003 Lopezville Road, Socorro, NM 87801-0387 (United States)
National Centre for Radio Astrophysics, TIFR, Pune University Campus, Post Bag 3, Pune 411 007 (India)
Hamburger Sternwarte, Gojenbergsweg 112, D-21029 Hamburg (Germany)
Leiden Observatory, Leiden University, P.O. Box 9513, NL-2300 RA Leiden (Netherlands)
Thüringer Landessternwarte Tautenburg, Sternwarte 5, D-07778, Tautenburg (Germany)

Publication Date:: Sat Feb 01 00:00:00 EST 2014

OSTI Identifier:: 22364016

Resource Type:: Journal Article

Journal Name:: Astrophysical Journal Letters

Additional Journal Information:: Journal Volume: 781; Journal Issue: 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2041-8205

Country of Publication:: United States

Language:: English

Subject:: 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; BRIGHTNESS; CORRELATIONS; DETECTION; EMISSION; FLUX DENSITY; GALAXY CLUSTERS; GHZ RANGE; LUMINOSITY; MHZ RANGE; RADIO TELESCOPES; RED SHIFT; UNIVERSE; X RADIATION; X-RAY GALAXIES

Citation Formats


                    Van Weeren, R. J., Jones, C., Forman, W. R., Intema, H. T., Lal, D. V., Bonafede, A., Brüggen, M., De Gasperin, F., Röttgering, H. J. A., Stroe, A., Hoeft, M., and Nuza, S. E., E-mail: rvanweeren@cfa.harvard.edu. THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65.  United States: N. p., 2014. 
        Web.  doi:10.1088/2041-8205/781/2/L32.

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                    Van Weeren, R. J., Jones, C., Forman, W. R., Intema, H. T., Lal, D. V., Bonafede, A., Brüggen, M., De Gasperin, F., Röttgering, H. J. A., Stroe, A., Hoeft, M., & Nuza, S. E., E-mail: rvanweeren@cfa.harvard.edu. THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65.  United States.  https://doi.org/10.1088/2041-8205/781/2/L32

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                    Van Weeren, R. J., Jones, C., Forman, W. R., Intema, H. T., Lal, D. V., Bonafede, A., Brüggen, M., De Gasperin, F., Röttgering, H. J. A., Stroe, A., Hoeft, M., and Nuza, S. E., E-mail: rvanweeren@cfa.harvard.edu. 2014.  
        "THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65".  United States.  https://doi.org/10.1088/2041-8205/781/2/L32.

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@article{osti_22364016,

  title        = {THE DISCOVERY OF A RADIO HALO IN PLCK G147.3–16.6 AT Z = 0.65},

  author       = {Van Weeren, R. J. and Jones, C. and Forman, W. R. and Intema, H. T. and Lal, D. V. and Bonafede, A. and Brüggen, M. and De Gasperin, F. and Röttgering, H. J. A. and Stroe, A. and Hoeft, M. and Nuza, S. E., E-mail: rvanweeren@cfa.harvard.edu},

  abstractNote = {Recent X-ray and Sunyaev-Zel'dovich (SZ) observations have dramatically increased the number of known distant galaxy clusters. In some merging, low-redshift (z < 0.4) clusters, centrally located, diffuse, extended radio emission (radio halos) has been found. Using the Giant Metrewave Radio Telescope (GMRT), we report the detection of diffuse radio emission in the binary-merging cluster PLCK G147.3–16.6 located at z = 0.65. We classify the emission as a giant radio halo due to its large physical extent of about 0.9 Mpc and its low-surface brightness. We measure an integrated flux density of 7.3 ± 1.1 mJy at 610 MHz for the radio halo, resulting in a 1.4 GHz radio power of 5.1 × 10{sup 24} W Hz{sup –1}. The radio halo power is consistent with that expected from the known correlation between X-ray luminosity or the cluster integrated SZ signal and radio power. Our observations also suggest that more of these distant radio halos could be discovered with the GMRT.},

  doi          = {10.1088/2041-8205/781/2/L32},

  url          = {https://www.osti.gov/biblio/22364016},
  journal      = {Astrophysical Journal Letters},

  issn         = {2041-8205},

  number       = 2,

  volume       = 781,

  place        = {United States},

  year         = {Sat Feb 01 00:00:00 EST 2014},

  month        = {Sat Feb 01 00:00:00 EST 2014}

}

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