[HTML][HTML] First M87 event horizon telescope results. IV. Imaging the central supermassive black hole

K Akiyama, A Alberdi, W Alef, K Asada… - The Astrophysical …, 2019 - iopscience.iop.org
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole
- IOPscience This site uses cookies. By continuing to use this site you agree to our use of …

First M87 event horizon telescope results. I. The shadow of the supermassive black hole

Event Horizon Telescope Collaboration - arXiv preprint arXiv …, 2019 - arxiv.org
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 …

The Galactic Center as a laboratory for theories of gravity and dark matter

M De Laurentis, I De Martino… - Reports on Progress in …, 2023 - iopscience.iop.org
Abstract The Galactic Center (GC) of the Milky Way, thanks to its proximity, allows to perform
astronomical observations that investigate physical phenomena at the edge of astrophysics …

First M87 event horizon telescope results. II. Array and instrumentation

K Akiyama, A Alberdi, W Alef, K Asada… - The Astrophysical …, 2019 - iopscience.iop.org
Abstract The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI)
array that comprises millimeter-and submillimeter-wavelength telescopes separated by …

Radio observations of active galactic nuclei with mm-VLBI

B Boccardi, TP Krichbaum, E Ros… - The Astronomy and …, 2017 - Springer
Over the past few decades, our knowledge of jets produced by active galactic nuclei (AGN)
has greatly progressed thanks to the development of very-long-baseline interferometry …

First M87 event horizon telescope results. II. Array and instrumentation

Event Horizon Telescope Collaboration - arXiv preprint arXiv …, 2019 - arxiv.org
The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that
comprises millimeter-and submillimeter-wavelength telescopes separated by distances …

BlackHoleCam: Fundamental physics of the galactic center

C Goddi, H Falcke, M Kramer, L Rezzolla… - … Journal of Modern …, 2017 - World Scientific
Einstein's General theory of relativity (GR) successfully describes gravity. Although GR has
been accurately tested in weak gravitational fields, it remains largely untested in the general …

Imaging the Schwarzschild-radius-scale structure of M87 with the Event Horizon Telescope using sparse modeling

K Akiyama, K Kuramochi, S Ikeda, VL Fish… - The Astrophysical …, 2017 - iopscience.iop.org
We propose a new imaging technique for radio and optical/infrared interferometry. The
proposed technique reconstructs the image from the visibility amplitude and closure phase …

Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution

JY Kim, TP Krichbaum, AE Broderick… - Astronomy & …, 2020 - aanda.org
3C 279 is an archetypal blazar with a prominent radio jet that show broadband flux density
variability across the entire electromagnetic spectrum. We use an ultra-high angular …

[HTML][HTML] Detection of intrinsic source structure at∼ 3 Schwarzschild radii with millimeter-VLBI observations of SAGITTARIUS A

RS Lu, TP Krichbaum, AL Roy, VL Fish… - The Astrophysical …, 2018 - iopscience.iop.org
We report results from very long baseline interferometric (VLBI) observations of the
supermassive black hole in the Galactic center, Sgr A*, at 1.3 mm (230 GHz). The …