Detection of a 100,000 M-circle dot black hole in M31's Most Massive Globular Cluster: A Tidally Stripped Nucleus
dc.bibliographicCitation.firstPage | 48 | |
dc.bibliographicCitation.issue | 2 | |
dc.bibliographicCitation.journalTitle | The astrophysical journal : an international review of spectroscopy and astronomical physics : Part 1 | eng |
dc.bibliographicCitation.volume | 924 | |
dc.contributor.author | Pechetti, Renuka | |
dc.contributor.author | Seth, Anil | |
dc.contributor.author | Kamann, Sebastian | |
dc.contributor.author | Caldwell, Nelson | |
dc.contributor.author | Strader, Jay | |
dc.contributor.author | den Brok, Mark | |
dc.contributor.author | Luetzgendorf, Nora | |
dc.contributor.author | Neumayer, Nadine | |
dc.contributor.author | Voggel, Karina | |
dc.date.accessioned | 2023-04-18T06:37:07Z | |
dc.date.available | 2023-04-18T06:37:07Z | |
dc.date.issued | 2022 | |
dc.description.abstract | We investigate the presence of a central black hole (BH) in B023-G078, M31's most massive globular cluster. We present high-resolution, adaptive-optics assisted, integral-field spectroscopic kinematics from Gemini/NIFS that show a strong rotation (∼20 km s-1) and a velocity dispersion rise toward the center (37 km s-1). We combine the kinematic data with a mass model based on a two-component fit to HST ACS/HRC data of the cluster to estimate the mass of a putative BH. Our dynamical modeling suggests a >3σ detection of a BH component of (1σ uncertainties). The inferred stellar mass of the cluster is , consistent with previous estimates, thus the BH makes up 1.5% of its mass. We examine whether the observed kinematics are caused by a collection of stellar mass BHs by modeling an extended dark mass as a Plummer profile. The upper limit on the size scale of the extended mass is 0.56 pc (95% confidence), which does not rule out an extended mass. There is compelling evidence that B023-G078 is the tidally stripped nucleus of a galaxy with a stellar mass >109 M o˙, including its high-mass, two-component luminosity profile, color, metallicity gradient, and spread in metallicity. Given the emerging evidence that the central BH occupation fraction of >109 M o˙ galaxies is high, the most plausible interpretation of the kinematic data is that B023-G078 hosts a central BH. This makes it the strongest BH detection in a lower-mass (<107 M o˙) stripped nucleus, and one of the few dynamically detected intermediate-mass BHs. | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/11990 | |
dc.identifier.uri | http://dx.doi.org/10.34657/11023 | |
dc.language.iso | eng | |
dc.publisher | London : Institute of Physics Publ. | |
dc.relation.doi | https://doi.org/10.3847/1538-4357/ac339f | |
dc.relation.essn | 1538-4357 | |
dc.relation.issn | 0004-637X | |
dc.rights.license | CC BY 4.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | |
dc.subject.ddc | 520 | |
dc.subject.other | Andromeda Galaxy | eng |
dc.subject.other | Globular star clusters | eng |
dc.subject.other | Intermediate-mass black holes | eng |
dc.subject.other | Stellar kinematics | eng |
dc.subject.other | Local Group | eng |
dc.title | Detection of a 100,000 M-circle dot black hole in M31's Most Massive Globular Cluster: A Tidally Stripped Nucleus | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | |
wgl.contributor | AIP | |
wgl.subject | Physik | ger |
wgl.type | Zeitschriftenartikel | ger |
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