111 citations · 330 across the 7 of their papers we have counts for
7 papers
Broadband Multi-wavelength Properties of M87 during the 2018 EHT Campaign including a Very High Energy Flaring Episode
J. C. Algaba, M. Balokovic, S. Chandra +738
The nearby elliptical galaxy M87 contains one of the only two supermassive black holes whose emission surrounding the event horizon has been imaged by the Event Horizon Telescope (…
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…
Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign
J. C. Algaba, J. Anczarski, K. Asada +36
In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring morphology and size are…
SMA CO(J=6-5) and 435 micron interferometric imaging of the nuclear region of Arp 220
Satoki Matsushita, Daisuke Iono, Glen R. Petitpas +11
We have used the Submillimeter Array (SMA) to make the first interferometric observations (beam size ~1") of the 12CO J=6-5 line and 435 micron (690 GHz) continuum emission toward…
Structure and Kinematics of CO (J=2-1) Emission in the Central Region of NGC 4258
S. Sawada-Satoh, P. T. P. Ho, S. Muller +2
We present 12CO (J=2-1) observations towards the central region of the Seyfert 2 galaxy NGC 4258 with the Submillimeter Array (SMA). Our interferometric maps show two arm-like elon…
The Dense Plasma Torus Around the Nucleus of an Active Galaxy NGC 1052
S. Kameno, S. Sawada-Satoh, M. Inoue +2
A subparsec-scale dense plasma torus around an active galactic nucleus (AGN) is unveiled. We report on very-long-baseline interferometry (VLBI) observations at 2.3, 8.4, and 15.4 G…