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MUSE-adaptive optics view of the starburst-AGN connection: NGC 7130

Published online by Cambridge University Press:  29 January 2021

Johan H. Knapen
Affiliation:
Instituto de Astrof sica de Canarias, E-38205 La Laguna, Tenerife, Spain Departamento de Astrof sica, Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain
Sébastien Comerón
Affiliation:
University of Oulu, Astronomy Research Unit, P.O. Box 3000, FI-90014 Oulu, Finland
Marja K. Seidel
Affiliation:
Caltech-IPAC, MC 314-6, 1200 E California Blvd, Pasadena, CA 91125, USA
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Abstract

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We combine ALMA and MUSE-NFM (narrow field mode, with full four-laser adaptive optics correction) data at 0.15 arcsec spatial resolution of the archetypical AGN-starburst “composite” galaxy NGC 7130. We present the discovery of a small 0.2 (60 pc) radius kinematically decoupled core or small bi-polar outflow, as well as a larger-scale outflow. We confirm the existence of star-forming knots arranged in an 0.58 (185 pc) radius ring around the Seyfert 1.9 nucleus, previously observed from UV and optical Hubble Space Telescope and CO(6-5) ALMA imaging. An extinction map derived from the MUSE data highlights the regions of enhanced CO emission as clearly seen in the ALMA data. 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 originating in the AGN. The plume is not visible morphologically, but is clearly characterised in our data by emission lines 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 disk. An 0.2-radius circumnuclear area of positive and negative velocities indicates a tiny inner disk or a small bipolar outflow, only observable when combining the integral field spectroscopic capabilities of MUSE with full adaptive optics.

Type
Contributed Papers
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of International Astronomical Union

References

Baldwin, J. A., Phillips, M. M., & Terlevich, R. 1981, PASP, 93, 510.1086/130766CrossRefGoogle Scholar
Begelman, M. C., Blandford, R. D., & Rees, M. J. 1984, Rev. Mod. Phys., 56, 25510.1103/RevModPhys.56.255CrossRefGoogle Scholar
Cappellari, M. 2017, MNRAS, 466, 79810.1093/mnras/stw3020CrossRefGoogle Scholar
Cappellari, M. & Emsellem, E. 2004, PASP, 116, 13810.1086/381875CrossRefGoogle Scholar
de Vaucouleurs, G., de Vaucouleurs, A., Corwin, H. G. Jr., et al. 1991, Third Reference Catalogue of Bright Galaxies10.1007/978-1-4757-4363-0CrossRefGoogle Scholar
Erroz-Ferrer, S., Carollo, M. C., den Brok, M., et al. 2019, MNRAS, 484, 500910.1093/mnras/stz194CrossRefGoogle Scholar
Knapen, J. H., Comerón, S., & Seidel, M. K. 2019, A&A, 621, L5 (KCS19)Google Scholar
Phillips, M. M., Charles, P. A., & Baldwin, J. A. 1983, ApJ, 266, 48510.1086/160797CrossRefGoogle Scholar
Shlosman, I., Frank, J., & Begelman, M. C. 1989, Nature, 338, 45111110.1038/338045a0CrossRefGoogle Scholar
Véron-Cetty, M. P. & Véron, P. 2006, A&A, 455, 773Google Scholar
Weilbacher, P. M., Streicher, O., Urrutia, T., et al. 2012, SPIE, 8451, 84510BGoogle Scholar
Zhao, Y., Lu, N., Xu, C. K., et al. 2016, ApJ, 820, 11810.3847/0004-637X/820/2/118CrossRefGoogle Scholar