Search Publications
GATOS: missing molecular gas in the outflow of NGC 5728 revealed by JWST
Lutz, D.; Förster Schreiber, N. M.; Genzel, R. +49 more
The ionisation cones of NGC 5728 have a deficit of molecular gas based on millimetre observations of CO (2-1) emission. Although photoionisation from the active nucleus may lead to suppression of this transition, warm molecular gas can still be present. We report the detection of eight mid-infrared rotational H2 lines throughout the cen…
A Fast Radio Burst in a Compact Galaxy Group at z ∼ 1
Kilpatrick, Charles D.; Simha, Sunil; Prochaska, J. Xavier +14 more
FRB 20220610A is a high-redshift fast radio burst (FRB) that has not been observed to repeat. Here, we present rest-frame UV and optical Hubble Space Telescope observations of the field of FRB 20220610A. The imaging reveals seven extended sources, one of which we identify as the most likely host galaxy with a spectroscopic redshift of z = 1.017. W…
MUSEQuBES: mapping the distribution of neutral hydrogen around low-redshift galaxies
Wisotzki, Lutz; Chen, Hsiao-Wen; Cantalupo, Sebastiano +5 more
We present a detailed study of cool, neutral gas traced by Lyα around 4595 z < 0.5 galaxies using stacks of background quasar spectra. The galaxies are selected from our MUSEQuBES low-z survey along with data from the literature. These galaxies, with a median stellar mass of ${\rm log}_{10}(M_*/\rm {\rm M}_{\odot })$ =10.0, are probed by 184 ba…
MIRI MRS Observations of β Pictoris. I. The Inner Dust, the Planet, and the Gas
Law, David R.; Stark, Christopher C.; Chen, Christine H. +15 more
We present JWST MIRI Medium Resolution Spectrograph (MRS) observations of the β Pictoris system. We detect an infrared excess from the central unresolved point source from 5 to 7.5 µm which is indicative of dust within the inner ∼7 au of the system. We perform point-spread function (PSF) subtraction on the MRS data cubes and detect a spatial…
Glimmers in the Cosmic Dawn: A Census of the Youngest Supermassive Black Holes by Photometric Variability
Melinder, Jens; Ellis, Richard S.; Saxena, Aayush +10 more
We report the first results from a deep near-infrared campaign with the Hubble Space Telescope to obtain late-epoch images of the Hubble Ultra Deep Field, 10–15 yr after the first epoch data were obtained. The main objectives are to search for faint active galactic nuclei (AGN) at high redshifts by virtue of their photometric variability and measu…
ALMA-IMF. IX. Catalog and Physical Properties of 315 SiO Outflow Candidates in 15 Massive Protoclusters
Galván-Madrid, R.; Cunningham, N.; Csengeri, T. +24 more
We present a catalog of 315 protostellar outflow candidates detected in SiO J = 5 - 4 in the ALMA-IMF Large Program, observed with ~2000 au spatial resolution, 0.339 km s-1 velocity resolution, and 2-12 mJy beam-1 (0.18-0.8 K) sensitivity. We find median outflow masses, momenta, and kinetic energies of ~0.3 M ⊙, 4 …
21cm signal sensitivity to dark matter decay
Qin, Y.; Mesinger, A.; Facchinetti, G. +1 more
The redshifted 21cm signal from the Cosmic Dawn is expected to provide unprecedented insights into early Universe astrophysics and cosmology. Here we explore how dark matter can heat the intergalactic medium before the first galaxies, leaving a distinctive imprint in the 21cm power spectrum. We provide the first dedicated Fisher matrix forecasts o…
The Cosmic Ultraviolet Baryon Survey (CUBS). VII. On the Warm-hot Circumgalactic Medium Probed by O VI and Ne VIII at 0.4 ≲ z ≲ 0.7
Faucher-Giguère, Claude-André; Johnson, Sean D.; Petitjean, Patrick +12 more
This paper presents a newly established sample of 103 unique galaxies or galaxy groups at 0.4 ≲ z ≲ 0.7 from the Cosmic Ultraviolet Baryon Survey (CUBS) for studying the warm-hot circumgalactic medium (CGM) probed by both O VI and Ne VIII absorption. The galaxies and associated neighbors are identified at <1 physical Mpc from the sightlines tow…
Remarkably Compact Quiescent Candidates at 3 < z < 5 in JWST-CEERS
Bezanson, Rachel; Nelson, Erica; Suess, Katherine A. +9 more
In this Letter, we measure the rest-frame optical and near-infrared sizes of 10 quiescent candidates at 3 < z < 5, first reported by Carnall et al. We use James Webb Space Telescope Near-Infrared Camera F277W and F444W imaging obtained through the public CEERS Early Release Science program and imcascade, an astronomical fitting code that uti…
KAOSS: turbulent, but disc-like kinematics in dust-obscured star-forming galaxies at z 1.3-2.6
Scott, D.; Smail, Ian; Farrah, D. +13 more
We present spatially resolved kinematics of 27 ALMA-identified dust-obscured star-forming galaxies (DSFGs) at z ~ 1.3-2.6, as traced by Hα emission using VLT/KMOS near-infrared integral field spectroscopy from the 'KMOS-ALMA Observations of Submillimetre Sources' (KAOSS) Large Programme. We derive Hα rotation curves and velocity dispersion profile…