The spectral variability of the GHz-peaked spectrum radio source PKS 1718-649 and a comparison of absorption models

Using the new wideband capabilities of the ATCA, we obtain spectra for PKS 1718-649, a well-known gigahertzpeaked spectrum radio source. The observations, between approximately 1 and 10 GHz over 3 epochs spanning approximately 21 months, reveal variability both above the spectral peak at ~3 GHz and...

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Bibliographic Details
Main Authors: Tingay, Steven, Macquart, Jean-Pierre, Collier, J., Rees, G., Callingham, J., Stevens, J., Carretti, E., Wayth, Randall, Wong, G., Trott, C., McKinley, B., Bernardi, G., Bowman, J., Briggs, F., Cappallo, R., Corey, B., Deshpande, A., Emrich, D., Gaensler, B., Goeke, R., Greenhill, L., Hazelton, B., Johnston-Hollitt, M., Kaplan, D., Kasper, J., Kratzenberg, E., Lonsdale, C., Lynch, Mervyn, McWhirter, S., Mitchell, D., Morales, M., Morgan, E., Oberoi, D., Ord, Stephen, Prabu, T., Rogers, A., Roshi, A., Shankar, N., Srivani, K., Subrahmanyan, R., Waterson, M., Webster, R., Whitney, A., Williams, A., Williams, C.
Format: Journal Article
Published: Institute of Physics Publishing 2015
Online Access:http://hdl.handle.net/20.500.11937/44986