Astronomical radio interferometry

Y Asaki, B Alcalde Pampliega, PG Edwards… - Nature Reviews …, 2023 - nature.com
Radio interferometry and its application to arrays of element antennas enable sensitive
studies of celestial objects with angular resolutions comparable with, or surpassing, optical …

First M87 event horizon telescope results. IX. Detection of near-horizon circular polarization

K Akiyama, A Alberdi, W Alef, JC Algaba… - The Astrophysical …, 2023 - iopscience.iop.org
Abstract Event Horizon Telescope (EHT) observations have revealed a bright ring of
emission around the supermassive black hole at the center of the M87 galaxy. EHT images …

The persistent shadow of the supermassive black hole of M 87-I. Observations, calibration, imaging, and analysis

K Akiyama, A Alberdi, W Alef, JC Algaba… - Astronomy & …, 2024 - aanda.org
In April 2019, the Event Horizon Telescope (EHT) Collaboration reported the first-ever event-
horizon-scale images of a black hole, resolving the central compact radio source in the giant …

Key science goals for the next-generation Event Horizon Telescope

MD Johnson, K Akiyama, L Blackburn, KL Bouman… - Galaxies, 2023 - mdpi.com
The Event Horizon Telescope (EHT) has led to the first images of a supermassive black
hole, revealing the central compact objects in the elliptical galaxy M87 and the Milky Way …

First GMVA observations with the upgraded NOEMA facility: VLBI imaging of BL Lacertae in a flaring state

DW Kim, M Janssen, TP Krichbaum, B Boccardi… - Astronomy & …, 2023 - aanda.org
We analyze a single-epoch Global mm-VLBI Array (GMVA) observation of the blazar BL
Lacertae (BL Lac) at 86 GHz from April 2021. The participation of the upgraded, phased …

[PDF][PDF] The persistent shadow of the supermassive black hole of M 87

J Dempsey, G Desvignes, J Dexter, V Dhruv… - A&A, 2024 - scholar.archive.org
ABSTRACT In April 2019, the Event Horizon Telescope (EHT) Collaboration reported the
first-ever event-horizon-scale images of a black hole, resolving the central compact radio …

Identifying synergies between VLBI and STIX imaging

H Müller, P Massa, A Mus, JS Kim… - Astronomy & …, 2024 - aanda.org
Context. Reconstructing an image from noisy, sparsely sampled Fourier data is an ill-posed
inverse problem that occurs in a variety of subjects within science, including data analysis …

Revisiting a Core–Jet Laboratory at High Redshift: Analysis of the Radio Jet in the Quasar PKS 2215+020 at z = 3.572

S Frey, J Fogasy, K Perger, K Kulish, P Benke, D Koller… - Universe, 2024 - mdpi.com
The prominent radio quasar PKS 2215+ 020 (J2217+ 0220) was once labelled as a new
laboratory for core–jet physics at redshift z= 3.572 because of its exceptionally extended jet …

First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

A Alberdi, I Cho, R Dahale, M Foschi, A Fuentes… - 2023 - digital.csic.es
Event Horizon Telescope (EHT) observations have revealed a bright ring of emission
around the supermassive black hole at the center of the M87 galaxy. EHT images in linear …

[PDF][PDF] First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization

C Telescope, K Akiyama, A Alberdi, W Alef… - 2023 - repository.ubn.ru.nl
Abstract Event Horizon Telescope (EHT) observations have revealed a bright ring of
emission around the supermassive black hole at the center of the M87 galaxy. EHT images …