First look Murchison Widefield Array observations of Abell 3667

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 c...

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Main Authors:	Hindson, L., Johnston-Hollitt, M., Hurley-Walker, N., Morgan, J., Buckley, K., Carretti, E., Dwarakanath, K., Bell, M., Bernardi, G., Bhat, R., Briggs, F., Deshpande, A., 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, A., Ord, S., Riding, J., Bowman, J., Cappallo, R., Corey, B., Emrich, D., Gaensler, B., Goeke, R., Greenhill, L., Kasper, J., Kratzenberg, E., Lonsdale, C., Lynch, Mervyn, McWhirter, R., Morales, M., Morgan, E., Prabu, T., Rogers, A., Roshi, A., Shankar, U., Srivani, K., Subrahmanyan, R., Tingay, Steven, Waterson, M., Webster, R., Whitney, A., Williams, A., Williams, C.
Format:	Conference Paper
Published:	Institute of Electrical and Electronics Engineers Inc. 2014
Online Access:	http://hdl.handle.net/20.500.11937/38756

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author	Hindson, L. Johnston-Hollitt, M. Hurley-Walker, N. Morgan, J. Buckley, K. Carretti, E. Dwarakanath, K. Bell, M. Bernardi, G. Bhat, R. Briggs, F. Deshpande, A. 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, A. Ord, S. Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, D. Gaensler, B. Goeke, R. Greenhill, L. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C.
author_facet	Hindson, L. Johnston-Hollitt, M. Hurley-Walker, N. Morgan, J. Buckley, K. Carretti, E. Dwarakanath, K. Bell, M. Bernardi, G. Bhat, R. Briggs, F. Deshpande, A. 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, A. Ord, S. Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, D. Gaensler, B. Goeke, R. Greenhill, L. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C.
author_sort	Hindson, L.
building	Curtin Institutional Repository
collection	Online Access
description	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.
first_indexed	2025-11-14T08:55:48Z
format	Conference Paper
id	curtin-20.500.11937-38756
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T08:55:48Z
publishDate	2014
publisher	Institute of Electrical and Electronics Engineers Inc.
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-387562018-03-29T09:07:33Z First look Murchison Widefield Array observations of Abell 3667 Hindson, L. Johnston-Hollitt, M. Hurley-Walker, N. Morgan, J. Buckley, K. Carretti, E. Dwarakanath, K. Bell, M. Bernardi, G. Bhat, R. Briggs, F. Deshpande, A. 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, A. Ord, S. Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, D. Gaensler, B. Goeke, R. Greenhill, L. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. 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. 2014 Conference Paper http://hdl.handle.net/20.500.11937/38756 10.1109/URSIGASS.2014.6930053 Institute of Electrical and Electronics Engineers Inc. restricted
spellingShingle	Hindson, L. Johnston-Hollitt, M. Hurley-Walker, N. Morgan, J. Buckley, K. Carretti, E. Dwarakanath, K. Bell, M. Bernardi, G. Bhat, R. Briggs, F. Deshpande, A. 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, A. Ord, S. Riding, J. Bowman, J. Cappallo, R. Corey, B. Emrich, D. Gaensler, B. Goeke, R. Greenhill, L. Kasper, J. Kratzenberg, E. Lonsdale, C. Lynch, Mervyn McWhirter, R. Morales, M. Morgan, E. Prabu, T. Rogers, A. Roshi, A. Shankar, U. Srivani, K. Subrahmanyan, R. Tingay, Steven Waterson, M. Webster, R. Whitney, A. Williams, A. Williams, C. First look Murchison Widefield Array observations of Abell 3667
title	First look Murchison Widefield Array observations of Abell 3667
title_full	First look Murchison Widefield Array observations of Abell 3667
title_fullStr	First look Murchison Widefield Array observations of Abell 3667
title_full_unstemmed	First look Murchison Widefield Array observations of Abell 3667
title_short	First look Murchison Widefield Array observations of Abell 3667
title_sort	first look murchison widefield array observations of abell 3667
url	http://hdl.handle.net/20.500.11937/38756

First look Murchison Widefield Array observations of Abell 3667

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