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Publication details

Document type
Journal articles

Document subtype
Full paper

Title
The GLEAMing of the first supermassive black holes

Participants in the publication
Guillaume Drouart (Author)
Nick Seymour (Author)
Tim J. Galvin (Author)
Jose Afonso (Author)
Dep. Física
 IA
 Joseph R. Callingham (Author)
Carlos De Breuck (Author)
Melanie Johnston-Hollitt (Author)
Anna D. Kapi?ska (Author)
Matthew D. Lehnert (Author)
Joël Vernet (Author)

Summary
We present the results of a new selection technique to identify powerful ( ) radio galaxies towards the end of the Epoch of Reionisation. Our method is based on the selection of bright radio sources showing radio spectral curvature at the lowest frequency ( ) combined with the traditional faintness in K-band for high-redshift galaxies. This technique is only possible, thanks to the Galactic and Extra-galactic All-sky Murchison Wide-field Array survey which provides us with 20 flux measurements across the 70– range. For this pilot project, we focus on the GAMA 09 field to demonstrate our technique. We present the results of our follow-up campaign with the Very Large Telescope, Australian Telescope Compact Array, and the Atacama Large Millimetre Array to locate the host galaxy and to determine its redshift. Of our four candidate high-redshift sources, we find two powerful radio galaxies in the range, confirm one at , and present a very tentative candidate. Their near-infrared and radio properties show that we are preferentially selecting some of the most radio luminous objects, hosted by massive galaxies very similar to powerful radio galaxies at . Our new selection and follow-up technique for finding powerful radio galaxies at has a high 25–50% success rate.

Date of Publication
2020

Where published
Publications of the Astronomical Society of Australia

Publication Identifiers
ISSN - 1323-3580

Address
United States

Publisher
Cambridge University Press (CUP)

Volume
37

Document Identifiers
DOI - https://doi.org/10.1017/pasa.2020.6
URL - http://dx.doi.org/10.1017/pasa.2020.6

Rankings
SCIMAGO Q1 (2019) - 1.933 - Astronomy and Astrophysics
SCIMAGO Q1 (2019) - 1.933 - Space and Planetary Science
Web Of Science Q1 (2019) - 5.067 - ASTRONOMY & ASTROPHYSICS - SCIE


Export

APA
Guillaume Drouart, Nick Seymour, Tim J. Galvin, Jose Afonso, Joseph R. Callingham, Carlos De Breuck, Melanie Johnston-Hollitt, Anna D. Kapi?ska, Matthew D. Lehnert, Joël Vernet, (2020). The GLEAMing of the first supermassive black holes. Publications of the Astronomical Society of Australia, 37, ISSN 1323-3580. eISSN . http://dx.doi.org/10.1017/pasa.2020.6

IEEE
Guillaume Drouart, Nick Seymour, Tim J. Galvin, Jose Afonso, Joseph R. Callingham, Carlos De Breuck, Melanie Johnston-Hollitt, Anna D. Kapi?ska, Matthew D. Lehnert, Joël Vernet, "The GLEAMing of the first supermassive black holes" in Publications of the Astronomical Society of Australia, vol. 37, 2020. 10.1017/pasa.2020.6

BIBTEX
@article{48048, author = {Guillaume Drouart and Nick Seymour and Tim J. Galvin and Jose Afonso and Joseph R. Callingham and Carlos De Breuck and Melanie Johnston-Hollitt and Anna D. Kapi?ska and Matthew D. Lehnert and Joël Vernet}, title = {The GLEAMing of the first supermassive black holes}, journal = {Publications of the Astronomical Society of Australia}, year = 2020, volume = 37 }