First look Murchison Widefield Array observations of Abell 3667

L. Hindson; M. Johnston-Hollitt; N. Hurley-Walker; J. Morgan; K. Buckley; E. Carretti; K. S. Dwarakanath; M. Bell; G. Bernardi; R. Bhat; F. Briggs; A. A. Deshpande; A. Ewall-Wice; L. Feng; B. Hazelton; Daniel Jacobs; D. Kaplan; N. Kudryavtseva; E. Lenc; B. McKinley; D. Mitchell; B. Pindor; P. Procopio; D. Oberoi; A. R. Offringa; S. Ord; J. Riding; Judd Bowman; R. Cappallo; B. Corey; D. Emrich; B. M. Gaensler; R. Goeke; L. Greenhill; J. Kasper; E. Kratzenberg; C. Lonsdale; M. Lynch; R. McWhirter; M. Morales; E. Morgan; T. Prabu; A. Rogers; A. Roshi; U. Shankar; K. Srivani; R. Subrahmanyan; S. Tingay; M. Waterson; R. Webster; A. Whitney; A. Williams; C. Williams

doi:10.1109/URSIGASS.2014.6930053

First look Murchison Widefield Array observations of Abell 3667

L. Hindson, M. Johnston-Hollitt, N. Hurley-Walker, J. Morgan, K. Buckley, E. Carretti, K. S. Dwarakanath, M. Bell, G. Bernardi, R. Bhat, F. Briggs, A. A. Deshpande, A. Ewall-Wice, L. Feng, B. Hazelton, Daniel Jacobs, D. Kaplan, N. Kudryavtseva, E. Lenc, B. McKinleyD. Mitchell, B. Pindor, P. Procopio, D. Oberoi, A. R. Offringa, S. Ord, J. Riding, Judd Bowman, R. Cappallo, B. Corey, D. Emrich, B. M. Gaensler, R. Goeke, L. Greenhill, J. Kasper, E. Kratzenberg, C. Lonsdale, M. Lynch, R. McWhirter, M. Morales, E. Morgan, T. Prabu, A. Rogers, A. Roshi, U. Shankar, K. Srivani, R. Subrahmanyan, S. Tingay, M. Waterson, R. Webster, A. Whitney, A. Williams, C. Williams

Earth and Space Exploration, School of (SESE)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The Murchison Widefield Array (MWA) is a new low frequency interferometric radio telescope, operating in the remote Murchison Radio Observatory in Western Australia. In this paper we present the first MWA observations of the well known radio relics in Abell 3667 (A3667) between 120 and 226 MHz. We clearly detect the radio relics in A3667 and present flux estimates and spectral indices for these features. The average spectral index of the north-west (NW) and south-east (SE) relics is -0.9 ± 0.1 between 120 and 1400 MHz. We are able to resolve spatial variation in the spectral index of the NW relic from -1.7 to -0.4, which is consistent with results found at higher frequencies.

Original language	English (US)
Title of host publication	2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781467352253
DOIs	https://doi.org/10.1109/URSIGASS.2014.6930053
State	Published - Oct 17 2014
Event	31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014 - Beijing, China Duration: Aug 16 2014 → Aug 23 2014

Publication series

Name	2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014

Other

Other	31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014
Country/Territory	China
City	Beijing
Period	8/16/14 → 8/23/14

ASJC Scopus subject areas

Electrical and Electronic Engineering
Computer Networks and Communications

Access to Document

10.1109/URSIGASS.2014.6930053

Cite this

Hindson, L., Johnston-Hollitt, M., Hurley-Walker, N., Morgan, J., Buckley, K., Carretti, E., Dwarakanath, K. S., Bell, M., Bernardi, G., Bhat, R., Briggs, F., Deshpande, A. A., Ewall-Wice, A., Feng, L., Hazelton, B., Jacobs, D., Kaplan, D., Kudryavtseva, N., Lenc, E., ... Williams, C. (2014). First look Murchison Widefield Array observations of Abell 3667. In 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014 Article 6930053 (2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIGASS.2014.6930053

First look Murchison Widefield Array observations of Abell 3667. / Hindson, L.; Johnston-Hollitt, M.; Hurley-Walker, N. et al.
2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. 6930053 (2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hindson, L, Johnston-Hollitt, M, Hurley-Walker, N, Morgan, J, Buckley, K, Carretti, E, Dwarakanath, KS, Bell, M, Bernardi, G, Bhat, R, Briggs, F, Deshpande, AA, Ewall-Wice, A, Feng, L, Hazelton, B, Jacobs, D, Kaplan, D, Kudryavtseva, N, Lenc, E, McKinley, B, Mitchell, D, Pindor, B, Procopio, P, Oberoi, D, Offringa, AR, Ord, S, Riding, J, Bowman, J, Cappallo, R, Corey, B, Emrich, D, Gaensler, BM, Goeke, R, Greenhill, L, Kasper, J, Kratzenberg, E, Lonsdale, C, Lynch, M, McWhirter, R, Morales, M, Morgan, E, Prabu, T, Rogers, A, Roshi, A, Shankar, U, Srivani, K, Subrahmanyan, R, Tingay, S, Waterson, M, Webster, R, Whitney, A, Williams, A & Williams, C 2014, First look Murchison Widefield Array observations of Abell 3667. in 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014., 6930053, 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014, Institute of Electrical and Electronics Engineers Inc., 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014, Beijing, China, 8/16/14. https://doi.org/10.1109/URSIGASS.2014.6930053

Hindson L, Johnston-Hollitt M, Hurley-Walker N, Morgan J, Buckley K, Carretti E et al. First look Murchison Widefield Array observations of Abell 3667. In 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014. Institute of Electrical and Electronics Engineers Inc. 2014. 6930053. (2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014). doi: 10.1109/URSIGASS.2014.6930053

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title = "First look Murchison Widefield Array observations of Abell 3667",

abstract = "The Murchison Widefield Array (MWA) is a new low frequency interferometric radio telescope, operating in the remote Murchison Radio Observatory in Western Australia. In this paper we present the first MWA observations of the well known radio relics in Abell 3667 (A3667) between 120 and 226 MHz. We clearly detect the radio relics in A3667 and present flux estimates and spectral indices for these features. The average spectral index of the north-west (NW) and south-east (SE) relics is -0.9 ± 0.1 between 120 and 1400 MHz. We are able to resolve spatial variation in the spectral index of the NW relic from -1.7 to -0.4, which is consistent with results found at higher frequencies.",

author = "L. Hindson and M. Johnston-Hollitt and N. Hurley-Walker and J. Morgan and K. Buckley and E. Carretti and Dwarakanath, {K. S.} and M. Bell and G. Bernardi and R. Bhat and F. Briggs and Deshpande, {A. A.} and A. Ewall-Wice and L. Feng and B. Hazelton and Daniel Jacobs and D. Kaplan and N. Kudryavtseva and E. Lenc and B. McKinley and D. Mitchell and B. Pindor and P. Procopio and D. Oberoi and Offringa, {A. R.} and S. Ord and J. Riding and Judd Bowman and R. Cappallo and B. Corey and D. Emrich and Gaensler, {B. M.} and R. Goeke and L. Greenhill and J. Kasper and E. Kratzenberg and C. Lonsdale and M. Lynch and R. McWhirter and M. Morales and E. Morgan and T. Prabu and A. Rogers and A. Roshi and U. Shankar and K. Srivani and R. Subrahmanyan and S. Tingay and M. Waterson and R. Webster and A. Whitney and A. Williams and C. Williams",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014 ; Conference date: 16-08-2014 Through 23-08-2014",

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AU - Hindson, L.

AU - Johnston-Hollitt, M.

AU - Hurley-Walker, N.

AU - Morgan, J.

AU - Buckley, K.

AU - Carretti, E.

AU - Dwarakanath, K. S.

AU - Bell, M.

AU - Bernardi, G.

AU - Bhat, R.

AU - Briggs, F.

AU - Deshpande, A. A.

AU - Ewall-Wice, A.

AU - Feng, L.

AU - Hazelton, B.

AU - Jacobs, Daniel

AU - Kaplan, D.

AU - Kudryavtseva, N.

AU - Lenc, E.

AU - McKinley, B.

AU - Mitchell, D.

AU - Pindor, B.

AU - Procopio, P.

AU - Oberoi, D.

AU - Offringa, A. R.

AU - Ord, S.

AU - Riding, J.

AU - Bowman, Judd

AU - Cappallo, R.

AU - Corey, B.

AU - Emrich, D.

AU - Gaensler, B. M.

AU - Goeke, R.

AU - Greenhill, L.

AU - Kasper, J.

AU - Kratzenberg, E.

AU - Lonsdale, C.

AU - Lynch, M.

AU - McWhirter, R.

AU - Morales, M.

AU - Morgan, E.

AU - Prabu, T.

AU - Rogers, A.

AU - Roshi, A.

AU - Shankar, U.

AU - Srivani, K.

AU - Subrahmanyan, R.

AU - Tingay, S.

AU - Waterson, M.

AU - Webster, R.

AU - Whitney, A.

AU - Williams, A.

AU - Williams, C.

PY - 2014/10/17

Y1 - 2014/10/17

N2 - The Murchison Widefield Array (MWA) is a new low frequency interferometric radio telescope, operating in the remote Murchison Radio Observatory in Western Australia. In this paper we present the first MWA observations of the well known radio relics in Abell 3667 (A3667) between 120 and 226 MHz. We clearly detect the radio relics in A3667 and present flux estimates and spectral indices for these features. The average spectral index of the north-west (NW) and south-east (SE) relics is -0.9 ± 0.1 between 120 and 1400 MHz. We are able to resolve spatial variation in the spectral index of the NW relic from -1.7 to -0.4, which is consistent with results found at higher frequencies.

AB - The Murchison Widefield Array (MWA) is a new low frequency interferometric radio telescope, operating in the remote Murchison Radio Observatory in Western Australia. In this paper we present the first MWA observations of the well known radio relics in Abell 3667 (A3667) between 120 and 226 MHz. We clearly detect the radio relics in A3667 and present flux estimates and spectral indices for these features. The average spectral index of the north-west (NW) and south-east (SE) relics is -0.9 ± 0.1 between 120 and 1400 MHz. We are able to resolve spatial variation in the spectral index of the NW relic from -1.7 to -0.4, which is consistent with results found at higher frequencies.

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DO - 10.1109/URSIGASS.2014.6930053

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AN - SCOPUS:84919724102

T3 - 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014

BT - 2014 31th URSI General Assembly and Scientific Symposium, URSI GASS 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 31st General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2014

Y2 - 16 August 2014 through 23 August 2014

ER -

First look Murchison Widefield Array observations of Abell 3667

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