Spectral Energy Distribution and Radio Halo of NGC 253 at Low Radio Frequencies

We present new radio continuum observations of NGC 253 from the Murchison Widefield Array at frequencies between 76 and 227 MHz. We model the broadband radio spectral energy distribution for the total flux density of NGC 253 between 76 MHz and 11 GHz. The spectrum is best described as a sum of a cen...

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Bibliographic Details
Main Authors: Kapińska, A. D., Staveley-Smith, L., Crocker, R., Meurer, G. R., Bhandari, S., Hurley-Walker, N., Offringa, A. R., Hanish, D. J., Seymour, N., Ekers, R. D., Bell, M. E., Callingham, J. R., Dwarakanath, K. S., For, B.-Q., Gaensler, B. M., Hancock, P. J., Hindson, L., Johnston-Hollitt, M., Lenc, E., McKinley, B., Morgan, J., Procopio, P., Wayth, R. B., Wu, C., Zheng, Q., Barry, N., Beardsley, A. P., Bowman, J. D., Briggs, F., Carroll, P., Hazelton, B. J., Jacobs, D. J., Kim, H.-S., Kittiwisit, P., Line, J., Mitchell, D. A., Morales, M. F., Paul, S., Pindor, B., Pober, J. C., Riding, J., Sethi, S. K., Shankar, N. Udaya, Subrahmanyan, R., Sullivan, I. S., Thyagarajan, N., Tingay, S. J., Trott, C. M., Webster, R. L., Wyithe, S. B., Cappallo, R. J., Deshpande, A. A., Kaplan, D. L., Lonsdale, C. J., McWhirter, S. R., Oberoi, D., Ord, S. M., Prabu, T., Srivani, K. S., Williams, A., Dillon, Joshua Shane, Ewall-Wice, Aaron Michael, Feng, Lu, Hewitt, Jacqueline N, Loeb, A., Neben, Abraham Richard, Tegmark, Max Erik, Morgan, Edward H, Williams, Christopher Leigh, Greenhill, Lincoln J.
Other Authors: Haystack Observatory
Format: Article
Language:en_US
Published: IOP Publishing 2017
Online Access:http://hdl.handle.net/1721.1/109763
https://orcid.org/0000-0003-3336-9958
https://orcid.org/0000-0002-0086-7363
https://orcid.org/0000-0003-0422-2324
https://orcid.org/0000-0002-4117-570X
https://orcid.org/0000-0001-7776-7240
https://orcid.org/0000-0001-7670-7190
https://orcid.org/0000-0001-7130-208X