S22A0120
S22A0120
Central massive black holes are fundamental components of galaxies as shown by the correlations between black hole mass and large-scale galaxy bulge properties. The underlying physics driving these empirical scaling relations is not well understood by the current sample of galaxies for which dynamical black hole masses have been measured. In particular, black hole mass determinations have been preferentially made in massive galaxies, except for a small subset of 7 sub-MWm galaxies. We will address this bias using the NIFS instrument, mounted at the Gemini North Telescope, assisted by adaptive optics. We will detect and weigh the intermediate-mass black holes (IMBH) in a sample of 3 nearby galaxies. This proposed sample is a sub-sample of our approved ALMA high-spatial-resolution sample (15 targets), suitable for molecular-gas-dynamical-modeling methods. Combining this Gemini proposal with other 11 targets of our ALMA sample those have available SINFONI observations, which will provide the same sample to have direct cross-checks in IMBH mass measurements using different dynamical methods and instruments.
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