MIGHTEE: Are giant radio galaxies more common than we thought?

J. Delhaize; I. Heywood; M. Prescott; M. J. Jarvis; I. Delvecchio; I. H. Whittam; S. V. White; M. J. Hardcastle; C. L. Hale; J. Afonso; Y. Ao; M. Brienza; M. Brueggen; J. D. Collier; E. Daddi; M. Glowacki; N. Maddox; L. K. Morabito; I. Prandoni; Z. Randriamanakoto; S. Sekhar; Fangxia An; N. J. Adams; S. Blyth; R. A. A. Bowler; L. Leeuw; L. Marchetti; S. M. Randriamampandry; K. Thorat; N. Seymour; O. Smirnov; A. R. Taylor; C. Tasse; M. Vaccari

doi:10.1093/mnras/staa3837

MIGHTEE: Are giant radio galaxies more common than we thought?

J. Delhaize, I. Heywood, M. Prescott, M. J. Jarvis, I. Delvecchio, I. H. Whittam, S. V. White, M. J. Hardcastle, C. L. Hale, J. Afonso, Y. Ao, M. Brienza, M. Brueggen, J. D. Collier, E. Daddi, M. Glowacki, N. Maddox, L. K. Morabito, I. Prandoni, Z. RandriamanakotoS. Sekhar, Fangxia An, N. J. Adams, S. Blyth, R. A. A. Bowler, L. Leeuw, L. Marchetti, S. M. Randriamampandry, K. Thorat, N. Seymour, O. Smirnov, A. R. Taylor, C. Tasse, M. Vaccari

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

28 Downloads (Pure)

Abstract

We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey. Both GRGs were found within a 1 deg^2 region inside the COSMOS field. They have redshifts of z=0.1656 and z=0.3363 and physical sizes of 2.4Mpc and 2.0Mpc, respectively. Only the cores of these GRGs were clearly visible in previous high resolution VLA observations, since the diffuse emission of the lobes was resolved out. However, the excellent sensitivity and uv coverage of the new MeerKAT telescope allowed this diffuse emission to be detected. The GRGs occupy a unpopulated region of radio power - size parameter space. Based on a recent estimate of the GRG number density, the probability of finding two or more GRGs with such large sizes at z

Original language	English
Article number	staa3837
Journal	Monthly Notices of the Royal Astronomical Society
Early online date	14 Dec 2020
DOIs	https://doi.org/10.1093/mnras/staa3837
Publication status	E-pub ahead of print - 14 Dec 2020

Keywords

astro-ph.GA

Access to Document

10.1093/mnras/staa3837Licence: Unspecified

staa3837
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Accepted author manuscript, 6.4 MBLicence: Unspecified

Cite this

Delhaize, J., Heywood, I., Prescott, M., Jarvis, M. J., Delvecchio, I., Whittam, I. H., White, S. V., Hardcastle, M. J., Hale, C. L., Afonso, J., Ao, Y., Brienza, M., Brueggen, M., Collier, J. D., Daddi, E., Glowacki, M., Maddox, N., Morabito, L. K., Prandoni, I., ... Vaccari, M. (2020). MIGHTEE: Are giant radio galaxies more common than we thought? Monthly Notices of the Royal Astronomical Society, Article staa3837. Advance online publication. https://doi.org/10.1093/mnras/staa3837

@article{b72f0a731ae3463b967d935e7418e205,

title = "MIGHTEE: Are giant radio galaxies more common than we thought?",

abstract = "We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey. Both GRGs were found within a 1 deg^2 region inside the COSMOS field. They have redshifts of z=0.1656 and z=0.3363 and physical sizes of 2.4Mpc and 2.0Mpc, respectively. Only the cores of these GRGs were clearly visible in previous high resolution VLA observations, since the diffuse emission of the lobes was resolved out. However, the excellent sensitivity and uv coverage of the new MeerKAT telescope allowed this diffuse emission to be detected. The GRGs occupy a unpopulated region of radio power - size parameter space. Based on a recent estimate of the GRG number density, the probability of finding two or more GRGs with such large sizes at z",

keywords = "astro-ph.GA",

author = "J. Delhaize and I. Heywood and M. Prescott and Jarvis, {M. J.} and I. Delvecchio and Whittam, {I. H.} and White, {S. V.} and Hardcastle, {M. J.} and Hale, {C. L.} and J. Afonso and Y. Ao and M. Brienza and M. Brueggen and Collier, {J. D.} and E. Daddi and M. Glowacki and N. Maddox and Morabito, {L. K.} and I. Prandoni and Z. Randriamanakoto and S. Sekhar and Fangxia An and Adams, {N. J.} and S. Blyth and Bowler, {R. A. A.} and L. Leeuw and L. Marchetti and Randriamampandry, {S. M.} and K. Thorat and N. Seymour and O. Smirnov and Taylor, {A. R.} and C. Tasse and M. Vaccari",

note = "This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society {\textcopyright}: 2020 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. ",

year = "2020",

month = dec,

day = "14",

doi = "10.1093/mnras/staa3837",

language = "English",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press (OUP)",

}

Delhaize, J, Heywood, I, Prescott, M, Jarvis, MJ, Delvecchio, I, Whittam, IH, White, SV, Hardcastle, MJ, Hale, CL, Afonso, J, Ao, Y, Brienza, M, Brueggen, M, Collier, JD, Daddi, E, Glowacki, M, Maddox, N, Morabito, LK, Prandoni, I, Randriamanakoto, Z, Sekhar, S, An, F, Adams, NJ, Blyth, S, Bowler, RAA, Leeuw, L, Marchetti, L, Randriamampandry, SM, Thorat, K, Seymour, N, Smirnov, O, Taylor, AR, Tasse, C & Vaccari, M 2020, 'MIGHTEE: Are giant radio galaxies more common than we thought?', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/staa3837