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Article: The MASSIVE survey - XIX. Molecular gas measurements of the supermassive black hole masses in the elliptical galaxies NGC 1684 and NGC 0997
Title | The MASSIVE survey - XIX. Molecular gas measurements of the supermassive black hole masses in the elliptical galaxies NGC 1684 and NGC 0997 |
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Authors | |
Keywords | galaxies: elliptical and lenticular, cD galaxies: individual: NGC 1684 galaxies: ISM galaxies: kinematics and dynamics galaxies: nuclei NGC 0997 |
Issue Date | 2024 |
Citation | Monthly Notices of the Royal Astronomical Society, 2024, v. 529, n. 2, p. 1597-1616 How to Cite? |
Abstract | Supermassive black hole (SMBH) masses can be measured by observing their dynamical effects on tracers, such as molecular gas. We present high angular resolution Atacama Large Millimeter/submillimeter Array observations of the 12CO(2-1) line emission of the early-type galaxies (ETGs) NGC 1684 and NGC 0997, obtained as part of the MASSIVE survey, a volume-limited integral-field spectroscopic study of the most massive local ETGs. NGC 1684 has a regularly rotating central molecular gas disc, with a spatial extent of ≈6 arcsec (≈1.8 kpc) in radius and a central hole slightly larger than the expected SMBH sphere of influence. We forward model the data cube in a Bayesian framework with the Kinematic Molecular Simulation (KinMS) code and infer a SMBH mass of M· (3σ confidence interval) and an F110W-filter stellar mass-to-light ratio of (2.50 ± 0.05) M·/L·, F110W. NGC 0997 has a regularly rotating central molecular gas disc, with a spatial extent of ≈5 arcsec (≈2.2 kpc) in radius and a partially filled central hole much larger than the expected SMBH sphere of influence, thus preventing a robust SMBH mass determination. With the same modelling method, we nevertheless constrain the SMBH mass to be in the range 4.0 × 107-1.8 × 109 M· and the F160W-filter stellar mass-to-light ratio to be (1.52 ± 0.11) M·/L·, F160W. Both SMBH masses are consistent with the SMBH mass-stellar velocity dispersion (MBH-σe) relation, suggesting that the overmassive SMBHs present in other very massive ETGs are fairly uncommon. |
Persistent Identifier | http://hdl.handle.net/10722/342690 |
ISSN | 2023 Impact Factor: 4.7 2023 SCImago Journal Rankings: 1.621 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Dominiak, Pandora | - |
dc.contributor.author | Bureau, Martin | - |
dc.contributor.author | Davis, Timothy A. | - |
dc.contributor.author | Ma, Chung Pei | - |
dc.contributor.author | Greene, Jenny E. | - |
dc.contributor.author | Gu, Meng | - |
dc.date.accessioned | 2024-04-17T07:05:33Z | - |
dc.date.available | 2024-04-17T07:05:33Z | - |
dc.date.issued | 2024 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2024, v. 529, n. 2, p. 1597-1616 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/10722/342690 | - |
dc.description.abstract | Supermassive black hole (SMBH) masses can be measured by observing their dynamical effects on tracers, such as molecular gas. We present high angular resolution Atacama Large Millimeter/submillimeter Array observations of the 12CO(2-1) line emission of the early-type galaxies (ETGs) NGC 1684 and NGC 0997, obtained as part of the MASSIVE survey, a volume-limited integral-field spectroscopic study of the most massive local ETGs. NGC 1684 has a regularly rotating central molecular gas disc, with a spatial extent of ≈6 arcsec (≈1.8 kpc) in radius and a central hole slightly larger than the expected SMBH sphere of influence. We forward model the data cube in a Bayesian framework with the Kinematic Molecular Simulation (KinMS) code and infer a SMBH mass of M· (3σ confidence interval) and an F110W-filter stellar mass-to-light ratio of (2.50 ± 0.05) M·/L·, F110W. NGC 0997 has a regularly rotating central molecular gas disc, with a spatial extent of ≈5 arcsec (≈2.2 kpc) in radius and a partially filled central hole much larger than the expected SMBH sphere of influence, thus preventing a robust SMBH mass determination. With the same modelling method, we nevertheless constrain the SMBH mass to be in the range 4.0 × 107-1.8 × 109 M· and the F160W-filter stellar mass-to-light ratio to be (1.52 ± 0.11) M·/L·, F160W. Both SMBH masses are consistent with the SMBH mass-stellar velocity dispersion (MBH-σe) relation, suggesting that the overmassive SMBHs present in other very massive ETGs are fairly uncommon. | - |
dc.language | eng | - |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | - |
dc.subject | galaxies: elliptical and lenticular, cD | - |
dc.subject | galaxies: individual: NGC 1684 | - |
dc.subject | galaxies: ISM | - |
dc.subject | galaxies: kinematics and dynamics | - |
dc.subject | galaxies: nuclei | - |
dc.subject | NGC 0997 | - |
dc.title | The MASSIVE survey - XIX. Molecular gas measurements of the supermassive black hole masses in the elliptical galaxies NGC 1684 and NGC 0997 | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1093/mnras/stae314 | - |
dc.identifier.scopus | eid_2-s2.0-85188180270 | - |
dc.identifier.volume | 529 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 1597 | - |
dc.identifier.epage | 1616 | - |
dc.identifier.eissn | 1365-2966 | - |
dc.identifier.isi | WOS:001191121300018 | - |