BHI alum Daniel Palumbo has recently published a new paper from his time with us as a fellow.
bit.ly/4hqGXLW
A Brief Review of Spin Signatures in Time-Averaged Total Intensity Images of LLAGN Accretion Flows
#DanielPalumbo #bhi #blackholes #M87 #photonring #galaxies #llagn #accretionflows
bit.ly/4hqGXLW
A Brief Review of Spin Signatures in Time-Averaged Total Intensity Images of LLAGN Accretion Flows
#DanielPalumbo #bhi #blackholes #M87 #photonring #galaxies #llagn #accretionflows
September 24, 2026 at 5:42 PM
BHI alum Daniel Palumbo has recently published a new paper from his time with us as a fellow.
bit.ly/4hqGXLW
A Brief Review of Spin Signatures in Time-Averaged Total Intensity Images of LLAGN Accretion Flows
#DanielPalumbo #bhi #blackholes #M87 #photonring #galaxies #llagn #accretionflows
bit.ly/4hqGXLW
A Brief Review of Spin Signatures in Time-Averaged Total Intensity Images of LLAGN Accretion Flows
#DanielPalumbo #bhi #blackholes #M87 #photonring #galaxies #llagn #accretionflows
arXiv:2503.09071v1 Announce Type: new
Abstract: Low-luminosity Active Galactic Nuclei (LLAGN) represent a unique class of AGN in the local universe. Extensive studies of these objects are essential for a comprehensive understanding of jet physics, as [1/3 of https://arxiv.org/abs/2503.09071v1]
Abstract: Low-luminosity Active Galactic Nuclei (LLAGN) represent a unique class of AGN in the local universe. Extensive studies of these objects are essential for a comprehensive understanding of jet physics, as [1/3 of https://arxiv.org/abs/2503.09071v1]
March 13, 2025 at 6:07 AM
arXiv:2503.09071v1 Announce Type: new
Abstract: Low-luminosity Active Galactic Nuclei (LLAGN) represent a unique class of AGN in the local universe. Extensive studies of these objects are essential for a comprehensive understanding of jet physics, as [1/3 of https://arxiv.org/abs/2503.09071v1]
Abstract: Low-luminosity Active Galactic Nuclei (LLAGN) represent a unique class of AGN in the local universe. Extensive studies of these objects are essential for a comprehensive understanding of jet physics, as [1/3 of https://arxiv.org/abs/2503.09071v1]
I am excited to announce the first results from the Revealing Low-Luminosity AGN (ReveaLLAGN) collab led by Kameron Goold! We give a first look at the JWST MIRI spectra of our highest (NGC 1052) & lowest (Sombrero) accretion-rate AGNs.
arXiv link: arxiv.org/abs/2307.01252 (1/4)
arXiv link: arxiv.org/abs/2307.01252 (1/4)
ReveaLLAGN 0: First Look at JWST MIRI data of Sombrero and NGC 1052
We present the first results from the Revealing Low-Luminosity Active
Galactic Nuclei (ReveaLLAGN) survey, a JWST survey of seven nearby LLAGN. We
focus on two observations with the Mid-Infrared...
arxiv.org
July 6, 2023 at 1:53 PM
I am excited to announce the first results from the Revealing Low-Luminosity AGN (ReveaLLAGN) collab led by Kameron Goold! We give a first look at the JWST MIRI spectra of our highest (NGC 1052) & lowest (Sombrero) accretion-rate AGNs.
arXiv link: arxiv.org/abs/2307.01252 (1/4)
arXiv link: arxiv.org/abs/2307.01252 (1/4)
Hidden feedback from compact jets in LLAGN: a massive CO-dark outflow in ESO 420-G13
Juan Anton Fernández-Ontiveros (Centro de Estudios de Física del Cosmos de Aragón)
INAF OAS Bologna
youtu.be/4zqvCaxF8Rc?...
Juan Anton Fernández-Ontiveros (Centro de Estudios de Física del Cosmos de Aragón)
INAF OAS Bologna
youtu.be/4zqvCaxF8Rc?...
AT Ontiveros GMT20260505 120051 Recording 2870x1790
YouTube video by INAF OAS Bologna
youtu.be
June 25, 2026 at 6:05 AM
Hidden feedback from compact jets in LLAGN: a massive CO-dark outflow in ESO 420-G13
Juan Anton Fernández-Ontiveros (Centro de Estudios de Física del Cosmos de Aragón)
INAF OAS Bologna
youtu.be/4zqvCaxF8Rc?...
Juan Anton Fernández-Ontiveros (Centro de Estudios de Física del Cosmos de Aragón)
INAF OAS Bologna
youtu.be/4zqvCaxF8Rc?...
Hidden feedback from compact jets in LLAGN: a massive CO-dark outflow in ESO 420-G13
AT Juan Fernandez Ontiveros 20260505
INAF OAS Bologna
youtu.be/IGBLqDC1TCw?...
AT Juan Fernandez Ontiveros 20260505
INAF OAS Bologna
youtu.be/IGBLqDC1TCw?...
AT Juan Fernandez Ontiveros 20260505
YouTube video by INAF OAS Bologna
youtu.be
May 15, 2026 at 6:41 AM
Hidden feedback from compact jets in LLAGN: a massive CO-dark outflow in ESO 420-G13
AT Juan Fernandez Ontiveros 20260505
INAF OAS Bologna
youtu.be/IGBLqDC1TCw?...
AT Juan Fernandez Ontiveros 20260505
INAF OAS Bologna
youtu.be/IGBLqDC1TCw?...
ReveaLLAGN 1 - JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas: arxiv.org/abs/2601.16977 -> James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection: www.space.com/astronomy/ja...
ReveaLLAGN 1: JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas
We present near- and mid-infrared spectra of eight Low-Luminosity Active Galactic Nuclei (LLAGN), spanning nearly four orders of magnitude in black hole mass and Eddington ratio, obtained with JWST/NI...
arxiv.org
February 12, 2026 at 1:25 PM
ReveaLLAGN 1 - JWST Emission-Line Spectra Reveal Low-Luminosity AGN with UV-Deficient SEDs and Warm Molecular Gas: arxiv.org/abs/2601.16977 -> James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection: www.space.com/astronomy/ja...
Tracking X-ray Variability in Next Generation EHT LLAGN Targets
https://arxiv.org/pdf/2501.14871
Nicole M. Ford, Michael Nowak, Venkatessh Ramakrishnan, Daryl Haggard, Kristen Dage, Dhanya G. Nair, Chi-kwan Chan
https://arxiv.org/pdf/2501.14871
Nicole M. Ford, Michael Nowak, Venkatessh Ramakrishnan, Daryl Haggard, Kristen Dage, Dhanya G. Nair, Chi-kwan Chan
https://arxiv.org/abs/2501.14871
arXiv abstract link
arxiv.org
January 28, 2025 at 6:05 AM
Tracking X-ray Variability in Next Generation EHT LLAGN Targets
https://arxiv.org/pdf/2501.14871
Nicole M. Ford, Michael Nowak, Venkatessh Ramakrishnan, Daryl Haggard, Kristen Dage, Dhanya G. Nair, Chi-kwan Chan
https://arxiv.org/pdf/2501.14871
Nicole M. Ford, Michael Nowak, Venkatessh Ramakrishnan, Daryl Haggard, Kristen Dage, Dhanya G. Nair, Chi-kwan Chan
past research has largely focused on more powerful radio sources. In this report, we present our recent VLBI studies of two prominent nearby LLAGN, NGC 4261 and M104 (the Sombrero galaxy). Specifically, we address the kinematics, collimation, and [2/3 of https://arxiv.org/abs/2503.09071v1]
March 13, 2025 at 6:07 AM
past research has largely focused on more powerful radio sources. In this report, we present our recent VLBI studies of two prominent nearby LLAGN, NGC 4261 and M104 (the Sombrero galaxy). Specifically, we address the kinematics, collimation, and [2/3 of https://arxiv.org/abs/2503.09071v1]
James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection
->Space | More on "Hidden supermassive black holes detected" at BigEarthData.ai | #space telescope #JWST #black hole
->Space | More on "Hidden supermassive black holes detected" at BigEarthData.ai | #space telescope #JWST #black hole
James Webb Space Telescope uncovers secret supermassive black holes that escape traditional detection
Woven through the universe are forces, often unseen, that dictate its grand design. For example, at the very heart of nearly every galaxy, we find a supermassive black hole. This isn't just some cosmic void — it's a powerful engine. Even in its quieter moments, this engine profoundly shapes its surroundings. We call black holes with this kind of behavior Low-Luminosity Active Galactic Nuclei, or LLAGN. Picture galactic engines, just idling. They're running, doing their thing, but at a much slower pace. Still, they influence entire galaxies . The quest for scientists? Deciphering the unique infrared language these galactic nuclei speak. A new paper provides comprehensive emission line measurements from James Webb Space Telescope (JWST) nuclear spectra for seven LLAGN as well as the active galaxy Centaurus A. This research acts like a cosmic linguist, analyzing subtle spectral signatures to give us unprecedented insight into how these powerful, yet often hidden, forces influence star birth, sculpt galactic gas and orchestrate the evolution of galaxies. To listen to these quiet galactic whispers, scientists need the right tools. The James Webb Space Telescope is perfectly suited. JWST sees in the infrared, light with wavelengths longer than what our eyes see. This is...
www.space.com
February 12, 2026 at 1:27 PM
We also demonstrate that JWST can cleanly isolate LLAGN emission from the surrounding galaxy even in incredibly low-luminosity AGNs like Sombrero, and find evidence for outflows in both objects.
For more information on our results check out the paper now on arXiv (4/4)
For more information on our results check out the paper now on arXiv (4/4)
July 6, 2023 at 1:58 PM
We also demonstrate that JWST can cleanly isolate LLAGN emission from the surrounding galaxy even in incredibly low-luminosity AGNs like Sombrero, and find evidence for outflows in both objects.
For more information on our results check out the paper now on arXiv (4/4)
For more information on our results check out the paper now on arXiv (4/4)
XRISM/Resolve spectrum of M81*, the LLAGN in the heart of the nearby spiral galaxy M81. A weak, neutral Fe K emission line is detected and resolved into K$_{\alpha,1}$ and K$_{\alpha,2}$ components. It shows a negligible velocity shift, and weak [3/7 of https://arxiv.org/abs/2505.13730v1]
May 21, 2025 at 6:07 AM
XRISM/Resolve spectrum of M81*, the LLAGN in the heart of the nearby spiral galaxy M81. A weak, neutral Fe K emission line is detected and resolved into K$_{\alpha,1}$ and K$_{\alpha,2}$ components. It shows a negligible velocity shift, and weak [3/7 of https://arxiv.org/abs/2505.13730v1]
arXiv:2505.13730v1 Announce Type: new
Abstract: Up to 40% of galaxies in the local universe host a low-luminosity active galactic nucleus (LLAGN), making it vital to understand this mode of black hole accretion. However, the presence or absence of [1/7 of https://arxiv.org/abs/2505.13730v1]
Abstract: Up to 40% of galaxies in the local universe host a low-luminosity active galactic nucleus (LLAGN), making it vital to understand this mode of black hole accretion. However, the presence or absence of [1/7 of https://arxiv.org/abs/2505.13730v1]
May 21, 2025 at 6:07 AM
arXiv:2505.13730v1 Announce Type: new
Abstract: Up to 40% of galaxies in the local universe host a low-luminosity active galactic nucleus (LLAGN), making it vital to understand this mode of black hole accretion. However, the presence or absence of [1/7 of https://arxiv.org/abs/2505.13730v1]
Abstract: Up to 40% of galaxies in the local universe host a low-luminosity active galactic nucleus (LLAGN), making it vital to understand this mode of black hole accretion. However, the presence or absence of [1/7 of https://arxiv.org/abs/2505.13730v1]
spectro-polarimetric analysis of the first IXPE observation, in synergy with a contemporaneous NuSTAR observation, of an LLAGN: NGC 2110. Using 554.4 ks of IXPE data from October 2024, we constrain the 99% upper limit on the [4/7 of https://arxiv.org/abs/2503.01071v1]
March 4, 2025 at 6:12 AM
spectro-polarimetric analysis of the first IXPE observation, in synergy with a contemporaneous NuSTAR observation, of an LLAGN: NGC 2110. Using 554.4 ks of IXPE data from October 2024, we constrain the 99% upper limit on the [4/7 of https://arxiv.org/abs/2503.01071v1]
break the degeneracies between different coronal emission models. Compton-thin LLAGN provide an opportunity for such spectro-polarimetric exploration in the 2-8 keV energy range using IXPE. In this work, we carry out a [3/7 of https://arxiv.org/abs/2503.01071v1]
March 4, 2025 at 6:11 AM
break the degeneracies between different coronal emission models. Compton-thin LLAGN provide an opportunity for such spectro-polarimetric exploration in the 2-8 keV energy range using IXPE. In this work, we carry out a [3/7 of https://arxiv.org/abs/2503.01071v1]
However, to decipher the exact nature of the Comptonizing corona in LLAGN, its geometry and emission mechanism must be understood beyond the limits of spectro-timing techniques. Spectro-polarimetry offers the potential to [2/7 of https://arxiv.org/abs/2503.01071v1]
March 4, 2025 at 6:11 AM
However, to decipher the exact nature of the Comptonizing corona in LLAGN, its geometry and emission mechanism must be understood beyond the limits of spectro-timing techniques. Spectro-polarimetry offers the potential to [2/7 of https://arxiv.org/abs/2503.01071v1]
arXiv:2503.01071v1 Announce Type: new
Abstract: Low-Luminosity Active Galactic Nuclei (LLAGN) provides a unique view of Comptonization and non-thermal emission from accreting black holes in the low-accretion rate regime. [1/7 of https://arxiv.org/abs/2503.01071v1]
Abstract: Low-Luminosity Active Galactic Nuclei (LLAGN) provides a unique view of Comptonization and non-thermal emission from accreting black holes in the low-accretion rate regime. [1/7 of https://arxiv.org/abs/2503.01071v1]
March 4, 2025 at 6:11 AM
arXiv:2503.01071v1 Announce Type: new
Abstract: Low-Luminosity Active Galactic Nuclei (LLAGN) provides a unique view of Comptonization and non-thermal emission from accreting black holes in the low-accretion rate regime. [1/7 of https://arxiv.org/abs/2503.01071v1]
Abstract: Low-Luminosity Active Galactic Nuclei (LLAGN) provides a unique view of Comptonization and non-thermal emission from accreting black holes in the low-accretion rate regime. [1/7 of https://arxiv.org/abs/2503.01071v1]
Tracking X-ray Variability in Next Generation EHT LLAGN Targets. Nicole M. Ford et. al. https://arxiv.org/abs/2501.14871
January 28, 2025 at 4:45 AM
Tracking X-ray Variability in Next Generation EHT LLAGN Targets. Nicole M. Ford et. al. https://arxiv.org/abs/2501.14871