The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151
Abstract
We derive a distance of 15.8 ± 0.4 Mpc to the archetypal 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 days) 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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- October 2020
- DOI:
- arXiv:
- arXiv:2007.07888
- Bibcode:
- 2020ApJ...902...26Y
- Keywords:
-
- Cepheid variable stars;
- Distance measure;
- Cepheid distance;
- AGN host galaxies;
- Hubble Space Telescope;
- HST photometry;
- Time series analysis;
- Near infrared astronomy;
- Optical observatories;
- Distance indicators;
- Galaxy distances;
- 218;
- 395;
- 217;
- 2017;
- 761;
- 756;
- 1916;
- 1093;
- 1170;
- 394;
- 590;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Solar and Stellar Astrophysics
- E-Print:
- 18 pages. 11 figures. 7 tables. Accepted for publication in ApJ
