Nearby Early-Type Galactic Nuclei at High Resolution: Dynamical Black Hole and Nuclear Star Cluster Mass Measurements

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. We measure dynamical masses of both the BHs and NSCs in these galaxies using Gemini/NIFS or VLT/SINFONI stellar kinema...

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Veröffentlicht in:	arXiv.org 2018-04
Hauptverfasser:	Nguyen, Dieu D, Seth, Anil C, Neumayer, Nadine, Kamann, Sebastian, Voggel, Karina T, Cappellari, Michele, Picotti, Arianna, Nguyen, Phuong M, Böker, Torsten, Debattista, Victor, Caldwell, Nelson, McDermid, Richard, Bastian, Nathan, Ahn, Christopher E, Pechetti, Renuka
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomical models Dwarf galaxies Galactic nuclei Galaxies Hubble Space Telescope Kinematics Massive stars Morphology Photometry Physics - Astrophysics of Galaxies Seeds Space telescopes Star & galaxy formation Star clusters Stellar evolution Stellar kinematics Stellar populations
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Beschreibung
Zusammenfassung:	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. We measure dynamical masses of both the BHs and NSCs in these galaxies using Gemini/NIFS or VLT/SINFONI stellar kinematics, Hubble Space Telescope (HST) imaging, and Jeans Anisotropic Models. We detect massive BHs in M32, NGC5102, and NGC5206, while in NGC205, we find only an upper limit. These BH mass estimates are consistent with previous measurements in M32 and NGC205, while those in NGC5102 and NGC5206 are estimated for the first time, and both found to be $
ISSN:	2331-8422
DOI:	10.48550/arxiv.1711.04314