activity
20142026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 8.2k across the 102 of their papers we have counts for

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13 papers · 1 filter

astro-ph.HE2025★ 4 cited

Probing jet base emission of M87* with the 2021 Event Horizon Telescope observations

Saurabh, Hendrik Müller, Sebastiano D. von Fellenberg +282

We investigate the presence and spatial characteristics of the jet base emission in M87* at 230 GHz, enabled by the enhanced uv coverage in the 2021 Event Horizon Telescope (EHT) o…

astro-ph.GA2025

Bridging scales: Modeling suppressed Bondi accretion on black holes and its impact on galaxy growth

Antonio J. Porras-Valverde, Priyamvada Natarajan, Angelo Ricarte +4

The accretion and feedback processes governing supermassive black hole (SMBH) growth span an enormous range of spatial scales, from the Event Horizon to the circumgalactic medium.…

astro-ph.GA2025

Bridging scales: How much do supermassive black holes grow in the suppressed Bondi regime?

Kung-Yi Su, Angelo Ricarte, Priyamvada Natarajan +6

The co-evolution of supermassive black holes (SMBHs) and their host galaxies remains one of the central open questions in cosmology, rooted in the coupling between accretion, feedb…

astro-ph.HE2025

Photon Orbit Signatures in Spectra of Black Hole Accretion Disks

Daniel C. M. Palumbo, George N. Wong, Angelo Ricarte

Light orbiting an accreting black hole may impact the disk or jet multiple times before escaping to the observer, at a variety of angles with respect to the local magnetic field. I…

astro-ph.IM2025

Towards direct imaging and orbital parameter estimation of supermassive black hole binaries with spaceborne VLBI

B. Hudson, L. I. Gurvits, E. Mooij +2

Direct observation of the orbital motion of a sub-parsec supermassive black hole binary (SMBHB) would provide the first conclusive electromagnetic proof of such systems existing. W…

astro-ph.HE2025★ 3 cited

The Advanced X-ray Imaging Satellite (AXIS) Community Science Book

Michael Koss, Nafisa Aftab, Steven W. Allen +395

The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…

astro-ph.HE2025★ 4 cited

Origin of the ring ellipticity in the black hole images of M87*

Rohan Dahale, Ilje Cho, Kotaro Moriyama +273

We investigate the origin of the elliptical ring structure observed in the images of the supermassive black hole M87*, aiming to disentangle contributions from gravitational, astro…

astro-ph.GA2025

Parameter Inference of Black Hole Images using Deep Learning in Visibility Space

Franc O, Pavlos Protopapas, Dominic W. Pesce +5

Using very long baseline interferometry, the Event Horizon Telescope (EHT) collaboration has resolved the shadows of two supermassive black holes. Model comparison is traditionally…

astro-ph.GA2025★ 5 cited

Tracking the assembly of supermassive black holes: a comparison of diverse models across cosmic time

Antonio J. Porras-Valverde, Angelo Ricarte, Priyamvada Natarajan +3

Galaxies grow alongside their central supermassive black holes (SMBHs), linked through fueling and feedback. However, the origins and details of this co-evolution remain unclear an…

astro-ph.HE2025

Novel Polarimetric Analysis of Near Horizon Flaring Episodes in M87* in Millimeter Wavelength

Razieh Emami, Matthew Liska, Koushik Chatterjee +15

Recent multi-wavelength observations of M87* \citep{2024A&A...692A.140A} revealed a high-energy -ray flare without a corresponding millimeter counterpart. We present a theoretic…

astro-ph.HE2025

Dynamical Inference from Polarized Light Curves of Sagittarius A*

Angelo Ricarte, Nicholas S. Conroy, Maciek Wielgus +3

Polarimetric light curves of Sagittarius A* (Sgr A*) sometimes exhibit loops in the Stokes and plane over time, often interpreted as orbiting hotspot motion. In this work,…

astro-ph.HE2025★ 10 cited

The putative center in NGC 1052

Anne-Kathrin Baczko, Matthias Kadler, Eduardo Ros +284

Many active galaxies harbor powerful relativistic jets, however, the detailed mechanisms of their formation and acceleration remain poorly understood. To investigate the area of je…

astro-ph.HE2025★ 13 cited

A multi-frequency study of sub-parsec jets with the Event Horizon Telescope

Jan Röder, Maciek Wielgus, Andrei P. Lobanov +287

The 2017 observing campaign of the Event Horizon Telescope (EHT) delivered the first very long baseline interferometry (VLBI) images at the observing frequency of 230 GHz, leading…