activity
19992026
most citedThe European Large Area ISO Survey II: mid-infrared extragalactic source counts

101 citations · 391 across the 31 of their papers we have counts for

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Showing astro-ph.GAShow all

13 papers · 1 filter

astro-ph.GA2026

Improving constraints on the Yukawa correction at the Galactic Center with multiple stellar orbits

GRAVITY+ Collaboration, :, A. Foschi +78

We investigate the presence of a Yukawa-like correction () to Newtonian gravity at the Galactic Center, using a multi-star fitting code, including the newly…

astro-ph.GA2026★ 1 cited

RotCurves: A PYTHON package for efficient modelling and fitting of galactic rotation curves at high-z

A. Nestor Shachar, A. Sternberg, S. H. Price +18

Rotation curves are a fundamental tool in the study of galaxies across cosmic time, and with the advent of large integral field unit (IFU) kinematic surveys there is an increasing…

astro-ph.GA2025★ 1 cited

The gas streamer G1-2-3 in the Galactic Center

S. Gillessen, F. Eisenhauer, J. Cuadra +61

The black hole in the Galactic Center, Sgr A*, is prototypical for ultra-low-fed galactic nuclei. The discovery of a hand-full of gas clumps in the realm of a few Earth masses in i…

astro-ph.GA2025★ 11 cited

Spatially resolved broad line region in a quasar at z=4: Dynamical black hole mass and prominent outflow

GRAVITY+ Collaboration, K. Abd El Dayem, N. Aimar +92

We present the first near-infrared interferometric data of a QSO at z=4. The K-band observations were performed with GRAVITY+ on the VLTI using all four UTs, detecting a differenti…

astro-ph.GA2025★ 26 cited

The ALMA-CRISTAL survey: Gas, dust, and stars in star-forming galaxies when the Universe was ~1 Gyr old I. Survey overview and case studies

R. Herrera-Camus, J. González-López, N. Förster Schreiber +44

We present the ALMA-CRISTAL survey, an ALMA Cycle 8 Large Program designed to investigate the physical properties of star-forming galaxies at through spat…

astro-ph.GA2025★ 8 cited

Exploring the presence of a fifth force at the Galactic Center

The GRAVITY Collaboration, K. Abd El Dayem, R. Abuter +60

Aims: The presence of a Yukawa-like correction to Newtonian gravity is investigated at the Galactic Center, leading to a new upper limit for the intensity of such a correction. Met…

astro-ph.GA2025★ 7 cited

Spectroscopic AGN survey at 2 with NTT/SOFI for GRAVITY+ observations

D. J. D. Santos, T. Shimizu, R. Davies +15

With the advent of GRAVITY+, the upgrade to the beam combiner GRAVITY at the Very Large Telescope Interferometer (VLTI), fainter and higher redshift active galactic nuclei (AGNs) a…

astro-ph.GA2025

A large-scale ring galaxy at z = 2.2 revealed by JWST/NIRCam: kinematic observations and analytical modelling

A. Nestor Shachar, A. Sternberg, R. Genzel +24

A unique galaxy at z = 2.2, zC406690, has a striking clumpy large-scale ring structure that persists from rest UV to near-infrared, yet has an ordered rotation and lies on the star…

astro-ph.GA2024★ 39 cited

GATOS: missing molecular gas in the outflow of NGC5728 revealed by JWST

R. Davies, T. Shimizu, M. Pereira-Santaella +49

The ionisation cones of NGC5728 have a deficit of molecular gas based on millimetre observations of CO(2-1) emission. Although photoionisation from the active nucleus may lead to s…

astro-ph.GA2024★ 63 cited

A dynamical measure of the black hole mass in a quasar 11 billion years ago

R. Abuter, F. Allouche, A. Amorim +124

Tight relationships exist in the local universe between the central stellar properties of galaxies and the mass of their supermassive black hole. These suggest galaxies and black h…

astro-ph.GA2024

Broad-line region geometry from multiple emission lines in a single-epoch spectrum

L. Kuhn, J. Shangguan, R. Davies +17

The broad-line region (BLR) of active galactic nuclei (AGNs) traces gas close to the central supermassive black hole (BH). Recent reverberation mapping (RM) and interferometric spe…

astro-ph.GA2024★ 1 cited

The size-luminosity relation of local active galactic nuclei from interferometric observations of the broad-line region

GRAVITY Collaboration, A. Amorim, G. Bourdarot +42

By using the GRAVITY instrument with the near-infrared (NIR) Very Large Telescope Interferometer (VLTI), the structure of the broad (emission-)line region (BLR) in active galactic…

astro-ph.GA2023

Using the motion of S2 to constrain vector clouds around SgrA*

GRAVITY Collaboration, A. Foschi, R. Abuter +53

The dark compact object at the centre of the Milky Way is well established to be a supermassive black hole with mass , but the nature…