Publications (15)
Chromatically modelling the parsec scale dusty structure in the centre of NGC1068
James Leftley, Romain Petrov, Niklas Moszczynski +19
The Very Large Telescope Interferometer (VLTI) has been providing breakthrough images of the dust in the central parsecs of Active Galactic Nuclei (AGN), a key component of the AGN…
Direct imaging of AGN outflows and their origin with the 23 m Large Binocular Telescope
Jacob W. Isbell, Steve Ertel, Jörg-Uwe Pott +17
Active galactic nuclei (AGNs) are a key component of galaxy evolution due to feedback on the host from its supermassive black hole. The morphology of warm, in- and outflowing dusty…
Using VLTI/GRAVITY+ to determine the identity of a third planet candidate in the PDS 70 system
David Trevascus, Wolfgang Brandner, Olga Balsalobre-Ruza +75
Detections of protoplanets are rare and protoplanetary disk features mischaracterized as planets are common. PDS 70 is one of only two stars known to host multiple confirmed protop…
Potential and sky coverage for off-axis fringe tracking in optical long baseline interferometry
Abdelkarim Boskri, Romain G. Petrov, Thami El Halkouj +6
The spectacular results provided by the second-generation VLTI instruments GRAVITY and MATISSE on active galactic nuclei (AGN) trigger and justify a strong increase in the sensitiv…
The dusty heart of Circinus II. Scrutinizing the LM-band dust morphology using MATISSE
Jacob W. Isbell, Jörg-Uwe Pott, Klaus Meisenheimer +11
In this paper we present the first-ever - and -band interferometric observations of Circinus, building upon a recent -band analysis. We used these observations to reconstr…
The dusty heart of Circinus: I. Imaging the circumnuclear dust in N-band
Jacob W. Isbell, Klaus Meisenheimer, Jörg-Uwe Pott +28
Active galactic nuclei play a key role in the evolution of galaxies, but their inner workings and physical connection to the host are poorly understood due to a lack of angular res…
STARSFLUX: an all-sky catalogue of absolute spectro-photometric calibrators from 0.3 to 30 m
Violeta Gámez Rosas, Michiel Hogerheijde, Roy van Boekel +10
The paper introduces STARSFLUX, an all‑sky catalogue of over 64,000 absolute spectro‑photometric calibrator spectra from 0.3 to 30 µm, derived by fitting Gaia DR3 stellar parameter…
New evidence for the dusty wind model: Polar dust and a hot core in the type-1 Seyfert ESO323-G77
James Leftley, Konrad Tristram, Sebastian Hönig +3
Infrared interferometry of Seyfert galaxies has revealed that their warm (K) dust emission originates primarily from polar regions instead of from an equatorial dust tor…
Shocks, Winds, and a Torus: The Large Binocular Telescope Interferometer (LBTI) Resolves the Active Nucleus of NGC 4151
Jacob W. Isbell, Steve Ertel, Makoto Kishimoto +12
We present mid-infrared (MIR) observations of the Seyfert 1 galaxy NGC 4151 using the Large Binocular Telescope Interferometer (LBTI). We took open-loop Fizeau images with 66-104 m…
Spectroscopic Reverberation Mapping for SARM: The Case of Mrk 1048 and Mrk 618
Shivangi Pandey, Suvendu Rakshit, S. Muneer +14
Robust extragalactic distance measurements are crucial for resolving the persistent discrepancy in the value of the Hubble constant (H)). Active Galactic Nuclei (AGNs), through…
The GRAVITY+ Project: Towards All-sky, Faint-Science, High-Contrast Near-Infrared Interferometry at the VLTI
GRAVITY+ Collaboration, :, Roberto Abuter +134
The GRAVITY instrument has been revolutionary for near-infrared interferometry by pushing sensitivity and precision to previously unknown limits. With the upgrade of GRAVITY and th…
Jet--ISM Interactions in Gaseous Disks: Simulating Kinetic Feedback in the Radio Galaxy 3C 326 N
Mayur B. Shende, Dipanjan Mukherjee, N. P. H. Nesvadba +4
Several radio galaxies, such as 3C\,326\,N, show signatures of jet--ISM coupling, but a complete theoretical framework for explaining them is still lacking. Interpreting these obse…
GRAVITY+ adaptive optics (GPAO) tests in Europe
Florentin Millour, Guillaume Bourdarot, Jean-Baptiste Le Bouquin +54
We present in this proceeding the results of the test phase of the GRAVITY+ adaptive optics. This extreme AO will enable both high-dynamic range observations of faint companions (i…
Locating dust and molecules in the inner circumstellar environment of R~Sculptoris with MATISSE
Julien Drevon, Florentin Millour, Pierre Cruzalèbes +49
AGB stars are one of the main sources of dust production in the Galaxy. However, it is not clear what this process looks like and where the dust is condensing in the circumstellar…
First Resolution of Microlensed Images of a Binary-Lens Event
Zexuan Wu, Subo Dong, A. Mérand +72
We resolve the multiple images of the binary-lens microlensing event ASASSN-22av using the GRAVITY instrument of the Very Large Telescope Interferometer (VLTI). The light curves sh…