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Improved dynamical constraints on the mass of the central black hole in NGC 404
Dieu D. Nguyen
We determine the dynamical black hole mass in NGC404 including modeling of the nuclear stellar populations. We combine \hst/STIS spectroscopy with WFC3 images to create a local col…
Nearby Early-Type Galactic Nuclei at High Resolution: Dynamical Black Hole and Nuclear Star Cluster Mass Measurements
Dieu D. Nguyen, Anil C. Seth, Nadine Neumayer +12
We present a detailed study of the nuclear star clusters (NSCs) and massive black holes (BHs) of four of the nearest low-mass early-type galaxies: M32, NGC205, NGC5012, and NGC5206…
Detection of Enhanced Central Mass-to-Light Ratios in Low-Mass Early-Type Galaxies: Evidence for Black Holes?
Renuka Pechetti, Anil Seth, Michele Cappellari +4
We present dynamical measurements of the central mass-to-light ratio () of a sample of 27 low-mass early-type ATLAS galaxies. We consider all ATLAS galaxies with…
The faint globular cluster in the dwarf galaxy Andromeda I
Nelson Caldwell, Jay Strader, David J. Sand +2
Observations of globular clusters in dwarf galaxies can be used to study a variety of topics, including the structure of dark matter halos and the history of vigorous star formatio…
Circumnuclear Structures in Megamaser Host Galaxies
Patryk Pjanka, Jenny E. Greene, Anil C. Seth +4
Using HST, we identify circumnuclear (- pc scale) structures in nine new HO megamaser host galaxies to understand the flow of matter from kpc-scale galactic structure…
Using Contour Trees in the Analysis and Visualization of Radio Astronomy Data Cubes
Paul Rosen, Anil Seth, Betsy Mills +5
The current generation of radio and millimeter telescopes, particularly the Atacama Large Millimeter Array (ALMA), offers enormous advances in observing capabilities. While these a…