HIGH-VELOCITY BIPOLAR MOLECULAR EMISSION from AN AGN TORUS
Accepted version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Gallimore, JF https://orcid.org/0000-0002-6972-2760
Elitzur, M https://orcid.org/0000-0001-8143-3550
Maiolino, R
Marconi, A https://orcid.org/0000-0002-9889-4238
O'Dea, CP https://orcid.org/0000-0001-6421-054X
Abstract
We have detected in ALMA observations CO J = 6 - 5 emission from the nucleus of the Seyfert galaxy NGC 1068. The low-velocity (up to +/- 70 km/s relative to systemic) CO emission resolves into a 12x7 pc structure, roughly aligned with the nuclear radio source. Higher-velocity emission (up to +/- 400 km/s) is consistent with a bipolar outflow in a direction nearly perpendicular (roughly 80 degrees) to the nuclear disk. The position-velocity diagram shows that in addition to the outflow, the velocity field may also contain rotation about the disk axis. These observations provide compelling evidence in support of the disk-wind scenario for the AGN obscuring torus.
Description
Keywords
galaxies: active, galaxies: individual (NGC 1068), galaxies: nuclei, galaxies: Seyfert, quasars: general
Journal Title
Astrophysical Journal Letters
Conference Name
Journal ISSN
2041-8205
2041-8213
2041-8213
Volume Title
829
Publisher
American Astronomical Society
Publisher DOI
Sponsorship
Science and Technology Facilities Council (ST/K003119/1)
Science and Technology Facilities Council (ST/M001172/1)
Science and Technology Facilities Council (ST/M001172/1)
FONDECYT (Grant ID: 3140436), Science and Technology Facilities Council