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MUSE-AO view of the starburst–AGN connection: NGC 7130

Knapen, J. H. and Comerón, S. and Seidel, M. K. (2019) MUSE-AO view of the starburst–AGN connection: NGC 7130. Astronomy and Astrophysics, 621 . Art. No. L5. ISSN 0004-6361. doi:10.1051/0004-6361/201834669.

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We present the discovery of a small kinematically decoupled core of 0.″2 (60 pc) in radius as well as an outflow jet in the archetypical AGN–starburst “composite” galaxy NGC 7130 from integral field data obtained with the adaptive optics-assisted MUSE-NFM instrument on the VLT. Correcting the already good natural seeing at the time of our science verification observations with the four-laser GALACSI AO system, we reach an unprecedented spatial resolution at optical wavelengths of around 0.″15. We confirm the existence of star-forming knots arranged in a ring of 0.″58 (185 pc) in radius around the nucleus, previously observed from UV and optical Hubble Space Telescope and CO(6-5) ALMA imaging. We determine the position of the nucleus as the location of a peak in gas velocity dispersion. A plume of material extends towards the NE from the nucleus until at least the edge of our field of view at 2″ (640 pc) radius which we interpret as an outflow jet originating in the AGN. The plume is not visible morphologically, but is clearly characterised in our data by emission-line ratios characteristic of AGN emission, enhanced gas velocity dispersion, and distinct non-circular gas velocities. Its orientation is roughly perpendicular to the line of nodes of the rotating host galaxy disc. A circumnuclear area of positive and negative velocities of 0.″2 in radius indicates a tiny inner disc, which can only be seen after combining the integral field spectroscopic capabilities of MUSE with adaptive optics.

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Additional Information:© 2019 ESO. Article published by EDP Sciences. Received 16 November 2018; Accepted 3 December 2018; Published online 04 January 2019. Based on observations made at the European Southern Observatory using the Very Large Telescope under programme 60.A-9493(A). We thank the staff who made MUSE perform so well in its new NFM mode. We thank Dr. Lodovico Coccato for his help with the data reduction, Dr. Ana Monreal-Ibero for comments on the manuscript, and Dr. Fatemeh Tabatabaei for advice on the astrometric calibration. J.H.K. acknowledges financial support from the European Union’s Horizon 2020 research and innovation programme under Marie Skłodowska-Curie grant agreement No. 721463 to the SUNDIAL ITN network, from the Spanish Ministry of Economy and Competitiveness (MINECO) under grant number AYA2016-76219-P, from the Fundación BBVA under its 2017 programme of assistance to scientific research groups, for the project “Using machine-learning techniques to drag galaxies from the noise in deep imaging”, and from the Leverhulme Trust through the award of a Visiting Professorship at LJMU. This research has made use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This Letter makes use of the following ALMA data: ADS/JAO.ALMA#2013.1.00524.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada), MOST and ASIAA (Taiwan), and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. This work has made use of data from the European Space Agency (ESA) mission Gaia (, processed by the Gaia Data Processing and Analysis Consortium (DPAC, Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Some of the data presented in this Letter were obtained from the Mikulski Archive for Space Telescopes (MAST). STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5-26555.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Marie Curie Fellowship721463
Ministerio de Economía, Industria y Competitividad (MINECO)AYA2016-76219-P
Leverhulme TrustUNSPECIFIED
Subject Keywords:galaxies: active – galaxies: individual: NGC7130 – galaxies: ISM – galaxies: jets – galaxies: nuclei – galaxies: Seyfert
Record Number:CaltechAUTHORS:20190117-104659787
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Official Citation:MUSE-AO view of the starburst–AGN connection: NGC 7130. J. H. Knapen, S. Comerón and M. K. Seidel. A&A, 621 (2019) L5. DOI:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92343
Deposited By: Tony Diaz
Deposited On:18 Jan 2019 04:58
Last Modified:16 Nov 2021 03:49

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