GMVA19A-224
Imaging Magnetic Acceleration and Collimation of M87 Jet at Scales of 7-150Rs
Abstract
Understanding the processes of jet formation in supermassive black holes (SMBH) is a central quest in astrophysics. The radio galaxy M87 contains the nearest/largest active SMBH, offering the best opportunity for probing the jet-production site. Here we propose an ultra-deep GMVA observation of M87 along with the large EHT campaign planned in April 2019. While the EHT is sensitive to the emission near SMBH, the GMVA allows us to image the scales of initial jet collimation/acceleration, bridging the gap between the SMBH and large-scale jet. By pairing the 2018/2019 campaign data, we aim to: (1) obtain firm evidence for the persistence of magnetic-field configuration in the initial jet acceleration region; (2) probe dynamic jet structures in the regions generating active magnetized knots; and (3) deeply image a recently-discovered novel jet feature that may offer evidence for a Blandford&Znajek jet. These are critical to test whether the highly-magnetized BH-powered scenario plays a dominant role or not in producing a powerful jet. We plan to add the Greenland Telescope(+LMT if possible), which will greatly enhance the N-S resolution/uv-coverage, thus make the 2019 GMVA data unique. The 3mm data would also be crucial to help calibrate and interpret the corresponding EHT 1mm data.
Investigators
| Name | Institution |
|---|---|
| Tony Zensus | National Radio Astronomy Observatory; Max-Planck-Institut für Radioastronomie |
| John Wardle | Brandeis University |
| Pablo de Vicente | Yebes, Centro Astronómico de |
| Hotaka Shiokawa | Center for Astrophysics | Harvard & Smithsonian |
| zhi-qiang shen | Shanghai Astronomical Observatory, CAS |
| Karl Schuster | Institut de Radio Astronomique Millimétrique |
| Tuomas Savolainen | Max-Planck-Institut für Radioastronomie; Aalto yliopisto |
| Helge Rottmann | Max-Planck-Institut für Radioastronomie |
| Eduardo Ros | Max-Planck-Institut für Radioastronomie; València, Universitat de |
| Hung-Yi Pu | Perimeter Institute for Theoretical Physics |
| Oliver Porth | Amsterdam, Universiteit van; Frankfurt am Main, Goethe-Universität |
| Yurii Pidopryhora | Max-Planck-Institut für Radioastronomie |
| Monica Orienti | Istituto Nazionale di Astrofisica; Bologna, Universita degli Studi di |
| Scott Noble | Tulsa, University of |
| Gopal Narayanan | Massachusetts at Amherst, University of |
| Hiroshi Nagai | National Astronomical Observatory of Japan ; Japan Aerospace Exploration Agency |
| Yosuke Mizuno | Shanghai Jiao Tong University; Frankfurt am Main, Goethe-Universität |
| Shin Mineshige | Kyoto University |
| Monika Moscibrodzka | Nijmegen, Radboud Universiteit |
| Hugo Messias | Joint ALMA Observatory |
| Jonathan McKinney | Maryland, University of |
| Satoki Matsushita | Academia Sinica |
| Alan Marscher | Boston University |
| Ivan Marti-Vidal | València, Universitat de |
| Sera Markoff | Amsterdam, Universiteit van |
| Andrei Lobanov | Max-Planck-Institut für Radioastronomie |
| Michael Lindqvist | Chalmers University of Technology |
| Shoko Koyama | National Astronomical Observatory of Japan ; Academia Sinica |
| Motoki Kino | National Astronomical Observatory of Japan ; Korea Astronomy and Space Science Institute |
| Michael Johnson | California at Santa Barbara, University of; Center for Astrophysics | Harvard & Smithsonian |
| Makoto Inoue | Academia Sinica |
| Violette Impellizzeri | National Radio Astronomy Observatory; Leiden, University of; Joint ALMA Observatory |
| David Hughes | Astrofísica, Óptica y Electrónica, Instituto Nacional de |
| Mareki Honma | National Astronomical Observatory of Japan |
| Paul Ho | Academia Sinica; East Asian Observatory |
| Ruben Herrero-Illana | European Southern Observatory |
| Marcello Giroletti | Istituto Nazionale di Astrofisica |
| Jose L. Gomez | Andalucía, Instituto de Astrofísica de |
| Gabriele Giovannini | Istituto Nazionale di Astrofisica |
| Vincent Fish | Haystack Observatory |
| Heino Falcke | Netherlands Institute for Radio Astronomy; Nijmegen, Radboud Universiteit |
| Akihiro Doi | Japan Aerospace Exploration Agency |
| Shep Doeleman | Center for Astrophysics | Harvard & Smithsonian |
| Geoffrey Crew | Massachusetts Institute of Technology |
| Sunil Chandra | North-West University |
| Avery Broderick | Waterloo, University of |
| Michael Bremer | Institut de Radio Astronomique Millimétrique |
| Silke Britzen | Max-Planck-Institut für Radioastronomie |
| Geoffrey Bower | Academia Sinica |
| Lindy Blackburn | Center for Astrophysics | Harvard & Smithsonian |
| Rebecca Azulay | València, Universitat de |
| Walter Alef | Max-Planck-Institut für Radioastronomie |
| Kazunori Akiyama | Massachusetts Institute of Technology; Haystack Observatory |
| Keiichi Asada | Academia Sinica |
| Thomas Krichbaum | Max-Planck-Institut für Radioastronomie |
| Rusen Lu | Max-Planck-Institut für Radioastronomie; Shanghai Astronomical Observatory, CAS |
| Masanori Nakamura | Academia Sinica; National Institute of Technology, Hachinohe College |
| Jae-Young Kim | Max-Planck-Institut für Radioastronomie; Kyungpook National University |
| Kazuhiro Hada * | Istituto Nazionale di Astrofisica; National Astronomical Observatory of Japan ; Nagoya City University |
| GBT Operator | Green Bank Observatory |
* indicates the PI