NOAO >   Observing Info >   Approved Programs >   2019B-0912

Small NOAO Logo

Program Information for 2019B-0912


PI: Susan Ridgway, WIYN, ser@noao.edu
Address: PO Box 26732, 950 North Cherry Avenue, Tucson, AZ 85726-6732 USA

CoI: Stephanie Juneau, NOAO

Title: Gas & Stellar Kinematics Around the Most Obscured Black Holes

Abstract: We propose a pilot program using the WIYN Bench Spectrograph with the HexPak IFU to study a few nearby galaxies selected to host supermassive black holes with the most extreme obscuration, also known as having a “Compton-thick” active galactic nucleus (AGN). We aim to test the hypothesis that AGN fueling and obscuration may be more closely related to the host galaxies than postulated by the generic unification model. According to the latter, the obscuring medium is a compact (sub-pc) nuclear torus surrounding the active black hole (BH), and the degree of obscuration simply depends on the viewing angle (e.g., Antonucci et al 1983). However, there is compelling evidence that the AGN obscuration is instead more closely related to the host galaxy. With Hexpak IFU spectra, we will investigate these hypotheses by studyinh the kinematics in the gas and stars surrounding the central AGN in these nearby galaxies.

Program Type: DD

Scheduled Nights:
Run 1 (2019B):  WIYN/HEXPK -- 1n on Aug 04 2019


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



NOAO >   Observing Info >   Approved Programs >   2019B-0912

noaoprop-help@noao.edu

Small NOAO Logo