[HTML][HTML] First Sagittarius A* event horizon telescope results. III. Imaging of the galactic center supermassive black hole

K Akiyama, A Alberdi, W Alef, JC Algaba… - The Astrophysical …, 2022 - iopscience.iop.org
First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center
Supermassive Black Hole - IOPscience Skip to content IOP Science home Accessibility Help …

The photon ring in m87

AE Broderick, DW Pesce, R Gold, P Tiede… - The Astrophysical …, 2022 - iopscience.iop.org
We report measurements of the gravitationally lensed secondary image—the first in an
infinite series of so-called" photon rings"—around the supermassive black hole M87* via …

Resolving nearby dust clouds

RH Leike, M Glatzle, TA Enßlin - Astronomy & Astrophysics, 2020 - aanda.org
Aims. Mapping the interstellar medium in 3D provides a wealth of insights into its inner
working. The Milky Way is the only galaxy for which detailed 3D mapping can be achieved in …

On the three-dimensional structure of local molecular clouds

C Zucker, A Goodman, J Alves, S Bialy… - The Astrophysical …, 2021 - iopscience.iop.org
We leverage the 1 pc spatial resolution of the Leike et al. three-dimensional (3D) dust map
to characterize the 3D structure of nearby molecular clouds (d≲ 400 pc). We start by" …

Deep probabilistic imaging: Uncertainty quantification and multi-modal solution characterization for computational imaging

H Sun, KL Bouman - Proceedings of the AAAI Conference on Artificial …, 2021 - ojs.aaai.org
Computational image reconstruction algorithms generally produce a single image without
any measure of uncertainty or confidence. Regularized Maximum Likelihood (RML) and …

Hybrid very long baseline interferometry imaging and modeling with THEMIS

AE Broderick, DW Pesce, P Tiede, HY Pu… - The Astrophysical …, 2020 - iopscience.iop.org
Generating images from very long baseline interferometric observations poses a difficult,
and generally not unique, inversion problem. This problem is simplified by the introduction of …

Image reconstruction algorithms in radio interferometry: From handcrafted to learned regularization denoisers

M Terris, A Dabbech, C Tang… - Monthly Notices of the …, 2023 - academic.oup.com
We introduce a new class of iterative image reconstruction algorithms for radio
interferometry, at the interface of convex optimization and deep learning, inspired by plug …

frankenstein: protoplanetary disc brightness profile reconstruction at sub-beam resolution with a rapid Gaussian process

J Jennings, RA Booth, M Tazzari… - Monthly Notices of …, 2020 - academic.oup.com
Interferometric observations of the mm dust distribution in protoplanetary discs are now
showing a ubiquity of annular gap and ring substructures. Their identification and accurate …

Deep images of the Galactic center with GRAVITY

R Abuter, N Aimar, A Amorim, P Arras… - Astronomy & …, 2022 - aanda.org
Stellar orbits at the Galactic Center provide a very clean probe of the gravitational potential
of the supermassive black hole. They can be studied with unique precision, beyond the …

Bayesian self-calibration and imaging in very long baseline interferometry

JS Kim, AS Nikonov, J Roth, TA Enßlin… - Astronomy & …, 2024 - aanda.org
Context. Self-calibration methods with the CLEAN algorithm have been widely employed in
very long baseline interferometry (VLBI) data processing in order to correct antenna-based …