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The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151

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arxiv 2007.07888 v2 pith:LXXDXIVD submitted 2020-07-15 astro-ph.GA astro-ph.SR

The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151

Wenlong Yuan , Michael M. Fausnaugh , Samantha L. Hoffmann , Lucas M. Macri , Bradley M. Peterson , Adam G. Riess , Misty C. Bentz , Jonathan S. Brown
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Elena Dalla Bont\`a Richard I. Davies Gisella de Rosa Laura Ferrarese Catherine J. Grier Erin K. S. Hicks Christopher A. Onken Richard W. Pogge Thaisa Storchi-Bergmann Marianne Vestergaard
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classification astro-ph.GA astro-ph.SR
keywords distancecepheidgalaxyseyfertabsoluteactivearchetypicalblack
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We derive a distance of $15.8\pm0.4$ Mpc to the archetypical Seyfert 1 galaxy NGC 4151 based on the near-infrared Cepheid Period-Luminosity relation and new Hubble Space Telescope multiband imaging. This distance determination, based on measurements of 35 long-period ($P > 25$d) Cepheids, will support the absolute calibration of the supermassive black hole mass in this system, as well as studies of the dynamics of the feedback or feeding of its active galactic nucleus.

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