NOAO >   Observing Info >   Approved Programs >   2019A-0077

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Program Information for 2019A-0077


PI: Rachael Merritt, Georgia State U., merritt@astro.gsu.edu
Address: Physics Department, 25 Park Pl NE, Room 605, Atlanta, Georgia 30303 United States

CoI: Misty C Bentz, Georgia State U.

Title: The Host Galaxies of Reverberation-Mapped AGNs in the Near-Infrared

Abstract: We propose to use WHIRC on the WIYN 3.5-m telescope to augment our sample of deep near-infrared images of the host galaxies of reverberation-mapped AGN. The emph{M}$_{BH}$$-$$sigma_{star}$ relationship is the most well-known black hole scaling relationship, but it has been found to have offsets in galaxies of different morphological type. Such offsets would require the detailed morphology of the galaxy to be known if one hopes to accurately estimate black hole masses. Recent results using optical emph{HST} data and WHIRC infrared data suggest that the emph{M}$_{BH}$$-$emph{L}$_{bulge}$ relationship does not suffer from the same offsets. WHIRC near-IR imaging is essential for minimizing the effects of dust and star formation for exploring the emph{M}$_{BH}$$-$emph{L}$_{bulge}$ relationship. Additionally, it can be combined with X-ray/UV/optical data to create multi-wavelength spectral energy distributions to better constrain the shape of the SED and constrain the bolometric luminosity and accretion state of the AGN. The proposed observations will increase the sample by $sim$25%, allowing us to continue our work to carefully determine the characteristics of this important sample of well-studied AGN, informing observational and numerical studies of AGN throughout cosmic history.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2019A):  WIYN/WHIRC -- 3n on Jun 28 - Jul 01 2019, Jul 15 - Jul 16 2019


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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