PoS - Proceedings of Science
Volume 371 - 7th Annual Conference on High Energy Astrophysics in Southern Africa (HEASA2019) - Multi-Wavelength (Chair: Michael Backes)
Multi-wavelength study of large-scale outflows from the Circinus galaxy
R. Ebrahim,* A. Chen, D. Prokhorov, K. Thorat, G. I.G. Jozsa, P. Serra
*corresponding author
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Pre-published on: December 15, 2020
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Abstract
The Circinus galaxy is a composite starburst/Seyfert galaxy which exhibits radio lobes inflated by kpc scale outflows along its minor axis. Its proximity (4 Mpc) makes it a unique target to study the physical nature of these outflows. We investigate if they originate from nuclear star formation activity or if they are jets from an active galactic core. The MeerKAT array performs 5 arcsecond resolution radio observations, which is in the observed range of the arcminute lobes of the Circinus galaxy. In this work, a multi-wavelength analysis of the radio lobe structures will be conducted using the available MeerKAT observations and Fermi-LAT data, which will aid in the understanding of the origin of these structures. The results can then be compared to the star-formation driven Fermi bubbles in the Milky Way, which have also been observed in both the gamma-ray and the radio bands to determine possible physical similarities between these structures.
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