Starburst-AGN mixing: TYPHOON observations of NGC 1365, NGC 1068, and the 
effect of spatial resolution on the AGN fraction

D'Agostino, Joshua J.; Poetrodjojo, Henry; Ho, I. -Ting; Groves, Brent; Kewley, Lisa; Madore, Barry F.; Rich, Jeff; Seibert, Mark

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Journal Article

Starburst-AGN mixing: TYPHOON observations of NGC 1365, NGC 1068, and the effect of spatial resolution on the AGN fraction

MPS-Authors

D'Agostino, Joshua J.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Poetrodjojo, Henry
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ho, I. -Ting
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Groves, Brent
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kewley, Lisa
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Madore, Barry F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rich, Jeff
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Seibert, Mark
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

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https://ui.adsabs.harvard.edu/abs/2018MNRAS.479.4907D
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Citation

D'Agostino, J. J., Poetrodjojo, H., Ho, I.-.-T., Groves, B., Kewley, L., Madore, B. F., et al. (2018). Starburst-AGN mixing: TYPHOON observations of NGC 1365, NGC 1068, and the effect of spatial resolution on the AGN fraction. Monthly Notices of the Royal Astronomical Society, 479, 4907-4935.

Cite as: https://hdl.handle.net/21.11116/0000-0005-CE2E-1

Abstract

We demonstrate a robust method of resolving the star formation and AGN contributions to emission lines using two very well known AGN systems: NGC 1365 and NGC 1068, using the high spatial resolution data from the TYPHOON/PrISM survey. We expand the previous method of calculating the AGN fraction by using theoretical-based model grids rather than empirical points. The high spatial resolution of the TYPHOON/PrISM observations shows evidence of both star formation and AGN activity occurring in the nuclei of the two galaxies. We rebin the data to the lower resolutions, typically found in other integral field spectroscopy surveys such as SAMI, MaNGA, and CALIFA. The results show that when rebinned from the native resolution of TYPHOON (<200 pc pixel^-1) to 1 kpc pixel^-1, the effects include an ̃3 kpc increase in the radius of measured AGN activity, and a factor of 2-7 increase in the detection of low surface brightness features such as shocks. All of this information is critical, because information on certain physical processes may be lost at varying resolutions. We make recommendations for analysing data at current IFU survey resolutions.