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The KMOS Survey: Investigating the Origin of the Elevated Electron Densities in Star-Forming Galaxies at
Rebecca L. Davies, N. M. Förster Schreiber, R. Genzel +24
We investigate what drives the redshift evolution of the typical electron density () in star-forming galaxies, using a sample of 140 galaxies drawn primarily from KMOS$^{\rm 3…
The GRAVITY Young Stellar Object survey IV. The CO overtone emission in 51 Oph at sub-au scales
GRAVITY Collaboration, M. Koutoulaki, R. Garcia Lopez +69
51 Oph is a Herbig Ae/Be star that exhibits strong near-infrared CO ro-vibrational emission at 2.3 micron, most likely originating in the innermost regions of a circumstellar disc.…
Detection of faint stars near SgrA* with GRAVITY
GRAVITY Collaboration, R. Abuter, A. Amorim +58
The spin of the supermassive black hole that resides at the Galactic Centre can in principle be measured by accurate measurements of the orbits of stars that are much closer to Sgr…
Determining sub-parsec supermassive black hole binary orbits with infrared interferometry
J. Dexter, D. Lutz, T. T. Shimizu +12
Radial velocity monitoring has revealed the presence of moving broad emission lines in some quasars, potentially indicating the presence of a sub-parsec binary system. Phase-refere…
Direct confirmation of the radial-velocity planet Pic c
M. Nowak, S. Lacour, A. -M. Lagrange +90
Methods used to detect giant exoplanets can be broadly divided into two categories: indirect and direct. Indirect methods are more sensitive to planets with a small orbital period,…
The spatially resolved broad line region of IRAS 09149-6206
GRAVITY Collaboration, A. Amorim, W. Brandner +41
We present new near-infrared VLTI/GRAVITY interferometric spectra that spatially resolve the broad Br emission line in the nucleus of the active galaxy IRAS 09149-6206. We use t…
Dynamically important magnetic fields near the event horizon of Sgr A*
GRAVITY Collaboration, A. Jiménez-Rosales, J. Dexter +53
We study the time-variable linear polarisation of Sgr A* during a bright NIR flare observed with the GRAVITY instrument on July 28, 2018. Motivated by the time evolution of both th…
Structural evolution in massive galaxies at z~2
Ken-ichi Tadaki, Sirio Belli, Andreas Burkert +18
We present 0.2arcsec-resolution Atacama Large Millimeter/submillimeter Array observations at 870 m in a stellar mass-selected sample of 85 massive ($M_\mathrm{star}>10^{11}~M_\o…
The GRAVITY young stellar object survey III. The dusty disk of RY Lup
GRAVITY Collaboration, Y. -I. Bouarour, K. Perraut +55
We use PIONIER data from the ESO archive and GRAVITY data that were obtained in June 2017 with the four 8m telescopes. We use a parametric disk model and the 3D radiative transfer…
The Kinematics and Dark Matter Fractions of TNG50 Galaxies at z=2 from an Observational Perspective
Hannah Übler, Shy Genel, Amiel Sternberg +13
We contrast the gas kinematics and dark matter contents of star-forming galaxies (SFGs) from state-of-the-art cosmological simulations within the CDM framework to observat…
Rotation Curves in z~1-2 Star-Forming Disks: Evidence for Cored Dark Matter Distributions
R. Genzel, S. H. Price, H. Übler +22
We report high quality, Halpha or CO rotation curves (RCs) to several Re for 41 large, massive, star-forming disk galaxies (SFGs), across the peak of cosmic galaxy evolution (z~0.6…
The Flux Distribution of Sgr A*
The GRAVITY Collaboration, R. Abuter, A. Amorim +54
The Galactic Center black hole Sagittarius A* is a variable NIR source that exhibits bright flux excursions called flares. The low-flux density turnover of the flux distribution is…
From Nuclear to Circumgalactic: Zooming in on AGN-Driven Outflows at z~2.2 with SINFONI
Rebecca L. Davies, N. M. Förster Schreiber, D. Lutz +16
We use deep adaptive optics assisted integral field spectroscopy from SINFONI on the VLT to study the spatially resolved properties of ionized gas outflows driven by active galacti…
A parameter survey of Sgr A* radiative models from GRMHD simulations with self-consistent electron heating
J. Dexter, A. Jiménez-Rosales, S. M. Ressler +13
The Galactic center black hole candidate Sgr A* is the best target for studies of low-luminosity accretion physics, including with near-infrared and submillimeter wavelength long b…
The Evolution of the Star-forming Interstellar Medium across Cosmic Time
Linda J. Tacconi, Reinhard Genzel, Amiel Sternberg
Over the past decade increasingly robust estimates of the dense molecular gas content in galaxy populations between redshift 0 and the peak of cosmic galaxy/star formation from red…
The GRAVITY young stellar object survey. II. First spatially resolved observations of the CO bandhead emission in a high-mass YSO
GRAVITY Collaboration, A. Caratti o Garatti, R. Fedriani +50
The inner regions of the discs of high-mass young stellar objects (HMYSOs) are still poorly known due to the small angular scales and the high visual extinction involved. We deploy…
Ionized outflows in local luminous AGN: what are the real densities and outflow rates?
R. Davies, D. Baron, T. Shimizu +23
We report on the determination of electron densities, and their impact on the outflow masses and rates, measured in the central few hundred parsecs of 11 local luminous active gala…
The regulation of galaxy growth along the size-mass relation by star-formation, as traced by H in KMOS galaxies at 0.7 < z < 2.7
D. J. Wilman, M. Fossati, J. T. Mendel +24
We present half-light sizes measured from H emission tracing star-formation in 281 star-forming galaxies from the KMOS3D survey at 0.7 < z < 2.7. Sizes are derived by fitting 2D…
Modeling the orbital motion of Sgr A*'s near-infrared flares
The GRAVITY Collaboration, M. Bauböck, J. Dexter +53
Infrared observations of Sgr A* probe the region close to the event horizon of the black hole at the Galactic center. These observations can constrain the properties of low-luminos…