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

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.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CE2E-1 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CE2F-0
Genre: Journal Article

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https://ui.adsabs.harvard.edu/abs/2018MNRAS.479.4907D (Any fulltext)
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 Creators:
D'Agostino, Joshua J.1, Author
Poetrodjojo, Henry1, Author
Ho, I. -Ting1, Author
Groves, Brent1, Author
Kewley, Lisa1, Author
Madore, Barry F.1, Author
Rich, Jeff1, Author
Seibert, Mark1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

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Free keywords: galaxies: active galaxies: evolution galaxies: nuclei galaxies: Seyfert galaxies: starburst galaxies: star formation Astrophysics - Astrophysics of Galaxies
 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.

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 Dates: 2018
 Publication Status: Issued
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Title: Monthly Notices of the Royal Astronomical Society
Source Genre: Journal
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Pages: - Volume / Issue: 479 Sequence Number: - Start / End Page: 4907 - 4935 Identifier: -