We present 0.″22-resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of CO(2−1) emission from the circumnuclear gas disk in the red nugget relic galaxy PGC 11179. The disk shows regular rotation, with projected velocities near the center of 400 km s−1. We assume the CO emission originates from a dynamically cold, thin disk and fit gas-dynamical models directly to the ALMA data. In addition, we explore systematic uncertainties by testing the impacts of various model assumptions on our results. The supermassive black hole (BH) mass (
- Award ID(s):
- 1909297
- NSF-PAR ID:
- 10171523
- Date Published:
- Journal Name:
- Astronomy & Astrophysics
- Volume:
- 634
- ISSN:
- 0004-6361
- Page Range / eLocation ID:
- A114
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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