Search Publications
GA-NIFS: Co-evolution within a highly star-forming galaxy group at z ∼ 3.7 witnessed by JWST/NIRSpec IFS
Maiolino, R.; Perna, M.; Cresci, G. +17 more
We present NIRSpec IFS observations of a galaxy group around the massive GS_4891 galaxy at z ∼ 3.7 in GOODS-South that includes two other two systems, GS_4891n to the north and GS_28356 to the east. These observations, obtained as part of the GTO Galaxy Assembly - NIRSpec IFS (GA-NIFS) program, allow us to study for the first time the s…
Preferential occurrence of fast radio bursts in massive star-forming galaxies
Leja, Joel; Somalwar, Jean; Hallinan, Gregg +24 more
Fast radio bursts (FRBs) are millisecond-duration events detected from beyond the Milky Way. FRB emission characteristics favour highly magnetized neutron stars, or magnetars, as the sources1, as evidenced by FRB-like bursts from a galactic magnetar2,3, and the star-forming nature of FRB host galaxies4,5. However, …
JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b
Sing, David K.; Lustig-Yaeger, Jacob; Fu, Guangwei +17 more
We present a JWST/Near Infrared Camera (NIRCam) transmission spectrum from 3.9 to 5.0 µm of the recently validated sub-Earth GJ 341b (R P = 0.92 R ⊕, T eq = 540 K) orbiting a nearby bright M1 star (d = 10.4 pc, K mag = 5.6). We use three independent pipelines to reduce the data from the three JWST …
First Results from the JWST Early Release Science Program Q3D: Powerful Quasar-driven Galactic Scale Outflow at z = 3
Johnson, Sean D.; Lützgendorf, Nora; Hamann, Fred +25 more
Quasar-driven galactic outflows are a major driver of the evolution of massive galaxies. We report observations of a powerful galactic-scale outflow in a z = 3 extremely red and intrinsically luminous (L bol ≃ 5 × 1047erg s-1) quasar SDSSJ1652 + 1728 with the Near-infrared Spectrograph on board JWST. We analyze the…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). III. Revealing the inner icy structure in local active galactic nuclei
Rouan, D.; Rigopoulou, D.; Stalevski, M. +24 more
We use JWST/MIRI MRS spectroscopy of a sample of six local obscured type 1.9/2 active galactic nuclei (AGN) to compare their nuclear mid-IR absorption bands with the level of nuclear obscuration traced by X-rays. This study is the first to use subarcsecond angular resolution data of local obscured AGN to investigate the nuclear mid-IR absorption b…
Searching for Emission Lines at z > 11: The Role of Damped Lyα and Hints About the Escape of Ionizing Photons
Pérez-González, Pablo G.; Chevallard, Jacopo; Carniani, Stefano +29 more
We describe new ultradeep James Webb Space Telescope (JWST) NIRSpec PRISM and grating spectra for the galaxies JADES-GS-z11-0 (
Scanning for dark matter subhaloes in Hubble Space Telescope imaging of 54 strong lenses
Massey, Richard; Robertson, Andrew; Cole, Shaun +9 more
The cold dark matter (DM) model predicts that every galaxy contains thousands of DM subhaloes; almost all other DM models include a physical process that smooths away the subhaloes. The subhaloes are invisible, but could be detected via strong gravitational lensing, if they lie on the line of sight to a multiply imaged background source, and pertu…
Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant
Casertano, Stefano; Li, Siyang; Riess, Adam G. +5 more
We study stars in the J-regions of the asymptotic giant branch (JAGB) of near-infrared color–magnitude diagrams in the maser host NGC 4258 and four hosts of six Type Ia supernovae (SNe Ia): NGC 1448, NGC 1559, NGC 5584, and NGC 5643. These clumps of stars are readily apparent near 1.0 < F150W ‑ F277W < 1.5 and m F150W = 22–25 mag …
The ALMA Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE): Core Growth, Cluster Contraction, and Primordial Mass Segregation
Ristorcelli, I.; Sanhueza, Patricio; Lee, Chang Won +40 more
The Atacama Large Millimeter/submillimeter Array (ALMA) Survey of Star Formation and Evolution in Massive Protoclusters with Blue Profiles (ASSEMBLE) aims to investigate the process of mass assembly and its connection to high-mass star formation theories in protoclusters in a dynamic view. We observed 11 massive (M clump ≳ 103
Evidence of Extreme Ionization Conditions and Low Metallicity in GHZ2/GLASS-Z12 from a Combined Analysis of NIRSpec and MIRI Observations
Finkelstein, Steven L.; Burgarella, Denis; Pérez-González, Pablo G. +19 more
GHZ2/GLASS-z12, one of the most distant galaxies found in JWST observations, has been recently observed with both the NIRSpec and MIRI spectrographs, establishing a spectroscopic redshift z spec = 12.34 and making it the first system at z > 10 with complete spectroscopic coverage from rest-frame UV to optical wavelengths. This galaxy…