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Torus feeding and outflow launching in the active nucleus of the Circinus galaxy
Wout M. Goesaert, Konrad R. W. Tristram, C. M. Violette Impellizzeri +4
Context: Most active galactic nuclei (AGN) are believed to be surrounded by a dusty molecular torus on the parsec scale which is often embedded within a larger circumnuclear disk (…
Sub-Parsec-Scale Jet-Driven Water Maser with Possible Gravitational Acceleration in the Radio Galaxy NGC 1052
Seiji Kameno, Yuichi Harikane, Satoko Sawada-Satoh +5
We report sub-pc-scale observations of the 321-GHz HO emission line in the radio galaxy NGC 1052. The HO line emitter size is constrained in milliarcsec distributed…
High Sensitivity Observations of the Water Megamasers of NGC 1068: Precise Astrometry and Detailed Kinematics
Jack F. Gallimore, C. M. Violette Impellizzeri
We present High Sensitivity Array observation of the water megamasers of NGC 1068. We obtain absolute astrometry with 0.3 mas precision that confirms the association of the disk ma…
Probing Jet-Torus Interaction in the Radio Galaxy NGC 1052 by Sulfur-Bearing Molecules
Seiji Kameno, Satoko Sawada-Satoh, C. M. Violette Impellizzeri +8
The radio galaxy NGC 1052 casts absorption features of sulfur-bearing molecules, HS, SO, SO, and CS toward the radio continuum emission from the core and jets. Using ALMA,…
ALMA imaging of the cold molecular and dusty disk in the type 2 active nucleus of the Circinus galaxy
Konrad R. W. Tristram, C. M. Violette Impellizzeri, Zhi-Yu Zhang +9
We aim to shed light on the physical properties and kinematics of the molecular material in the nucleus of one of the closest type 2 active galaxies. To this end, we obtained high…
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
The Event Horizon Telescope Collaboration
When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To…