The black hole and central stellar population of MCG-6-30-15
The black hole and central stellar population of MCG-6-30-15
We present the first near-IR integral field spectroscopy observations of the galaxy MCG-6- 30-15. The H-band data studied in this paper cover the central 500 pc of the galaxy at the best resolution (0.1 arcsec) so far. The spectra of the innermost regions are dominated by broad Brackett series emission lines and non-stellar continuum, under which we are able to trace the distribution and kinematics of the stars and also the [Fe II] line emission. We find that there is a counter-rotating stellar core extending out to 125 pc, which appears to be associated with the [Fe II] emission. Based on the mass-to-light ratio, and the presence of this emission line, we estimate the age of the central stellar population to be of the order of 65 Myr. We show that the gas needed to fuel the black hole is, at most, only 1 per cent of that needed to form these stars. We derive independent constraints on the black hole mass using the dynamical information and determine an upper limit for the black hole mass, MBH <6 × 107M⊙, that is consistent with other estimates.
Black hole physics, Galaxies: active, Galaxies: individual: MCG-6-30-15, Galaxies: nuclei, Infrared: galaxies
2294-2306
Raimundo, S.I.
e409d9d3-17e8-4049-ad29-43ada60b24e2
Davies, R.I.
a1bb225b-ca5d-417a-95c2-9ba8de6d3d86
Gandhi, P.
5bc3b5af-42b0-4dd8-8f1f-f74048d4d4a9
Fabian, A.C.
b9bef0bc-2ecd-49dc-ab2b-954cabea88ba
Canning, R.E.A.
2b1a04ef-57b1-4f2f-9471-7dcb343b83b2
Ivanov, V.D.
3d83ff7c-b4ce-4abd-8ffc-db071c17fecd
20 May 2013
Raimundo, S.I.
e409d9d3-17e8-4049-ad29-43ada60b24e2
Davies, R.I.
a1bb225b-ca5d-417a-95c2-9ba8de6d3d86
Gandhi, P.
5bc3b5af-42b0-4dd8-8f1f-f74048d4d4a9
Fabian, A.C.
b9bef0bc-2ecd-49dc-ab2b-954cabea88ba
Canning, R.E.A.
2b1a04ef-57b1-4f2f-9471-7dcb343b83b2
Ivanov, V.D.
3d83ff7c-b4ce-4abd-8ffc-db071c17fecd
Raimundo, S.I., Davies, R.I. and Gandhi, P.
,
et al.
(2013)
The black hole and central stellar population of MCG-6-30-15.
Monthly Notices Of The Royal Astronomical Society, 431 (3), .
(doi:10.1093/mnras/stt327).
Abstract
We present the first near-IR integral field spectroscopy observations of the galaxy MCG-6- 30-15. The H-band data studied in this paper cover the central 500 pc of the galaxy at the best resolution (0.1 arcsec) so far. The spectra of the innermost regions are dominated by broad Brackett series emission lines and non-stellar continuum, under which we are able to trace the distribution and kinematics of the stars and also the [Fe II] line emission. We find that there is a counter-rotating stellar core extending out to 125 pc, which appears to be associated with the [Fe II] emission. Based on the mass-to-light ratio, and the presence of this emission line, we estimate the age of the central stellar population to be of the order of 65 Myr. We show that the gas needed to fuel the black hole is, at most, only 1 per cent of that needed to form these stars. We derive independent constraints on the black hole mass using the dynamical information and determine an upper limit for the black hole mass, MBH <6 × 107M⊙, that is consistent with other estimates.
This record has no associated files available for download.
More information
Accepted/In Press date: 19 February 2013
Published date: 20 May 2013
Keywords:
Black hole physics, Galaxies: active, Galaxies: individual: MCG-6-30-15, Galaxies: nuclei, Infrared: galaxies
Identifiers
Local EPrints ID: 475831
URI: http://eprints.soton.ac.uk/id/eprint/475831
ISSN: 1365-2966
PURE UUID: 1866f45f-d85b-48ad-a4ca-97d3dfe23b91
Catalogue record
Date deposited: 29 Mar 2023 16:33
Last modified: 30 Apr 2024 01:56
Export record
Altmetrics
Contributors
Author:
R.I. Davies
Author:
A.C. Fabian
Author:
R.E.A. Canning
Author:
V.D. Ivanov
Corporate Author: et al.
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
