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Hitting the slopes: A spectroscopic view of UV continuum slopes of galaxies reveals a reddening at z > 9.5
Aayush Saxena, Alex J. Cameron, Harley Katz +26
The UV continuum slope of galaxies, , is a powerful diagnostic. Understanding the redshift evolution of and its dependence on key galaxy properties can shed light on the evo…
Efficient Ionizers with Low H+[OIII] Equivalent Widths: JADES Spectroscopy of a Peculiar High-z Population
Isaac H. Laseter, Michael V. Maseda, Charlotte Simmonds +15
Early JWST photometric studies discovered a population of UV faint () Lyman break galaxies with spectral energy distributions implying young ages ($…
GA-NIFS: The highly overdense system BR1202-0725 at z 4.7. A double AGN with fast outflows plus eight companion galaxies
S. Zamora, Giacomo Venturi, Stefano Carniani +14
Distant quasars (QSOs) in galaxy overdensities are considered key actors in the evolution of the early Universe. In this work, we studied the kinematic and physical properties of t…
An Investigation Into The Selection and Colors of Little Red Dots and Active Galactic Nuclei
Kevin N. Hainline, Roberto Maiolino, Ignas Juodzbalis +25
Recently, a large number of compact sources at with blue UV slopes and extremely red rest-frame optical slopes have been found in James Webb Space Telescope (JWST) extragal…
GA-NIFS: interstellar medium properties and tidal interactions in the evolved massive merging system B14-65666 at z=7.152
Gareth C. Jones, Rebecca A. A. Bowler, Andrew J. Bunker +13
We present JWST/NIRSpec IFU observations of the z=7.152 galaxy system B14-65666, as part of the GA-NIFS survey. Line and continuum emission in this massive system (log10(M*/Msol)=9…
GA-NIFS: A galaxy-wide outflow in a Compton-thick mini-BAL quasar at z = 3.5 probed in emission and absorption
Michele Perna, Santiago Arribas, Xihan Ji +17
Studying the distribution and properties of ionised gas in outflows driven by AGN is crucial for understanding the feedback mechanisms at play in extragalactic environments. In thi…
GA-NIFS: Dissecting the multiple sub-structures and probing their complex interactions in the \Lyalpha emitter galaxy CR7 at z = 6.6 with JWST/NIRSpec
C. Marconcini, F. D'Eugenio, R. Maiolino +16
We present JWST/NIRSpec integral field spectroscopic (IFS) observations of the \Lyalpha emitter CR7 at z ~ 6.6, observed as part of the GA-NIFS program. Using low-resolution PRISM…
GA-NIFS: ISM properties and metal enrichment in a merger-driven starburst during the Epoch of Reionisation probed with JWST and ALMA
J. Scholtz, M. Curti, F. D'Eugenio +17
We present deep JWST/NIRSpec integral-field spectroscopy (IFS) and ALMA [CII]158m observations of COS-3018, a star-forming galaxy at z6.85, as part of the GA-NIFS progr…
Not Just a Dot: the complex UV morphology and underlying properties of Little Red Dots
P. Rinaldi, N. Bonaventura, G. H. Rieke +31
We analyze 99 photometrically selected Little Red Dots (LRDs) at in the GOODS fields, leveraging ultra-deep JADES NIRCam short-wavelength (SW) data. We examine the…
HYPERION: broad-band X-ray-to-near-infrared emission of Quasars in the first billion years of the Universe
I. Saccheo, A. Bongiorno, E. Piconcelli +41
We aim at characterizing the X-ray-to-optical/near-infrared broad-band emission of luminous QSOs in the first Gyr of cosmic evolution to understand whether they exhibit differences…
HYPERION. Shedding light on the first luminous quasars: A correlation between UV disc winds and X-ray continuum
A. Tortosa, L. Zappacosta, E. Piconcelli +41
One of the main open questions in the field of luminous () quasars (QSOs) at is the rapid formation (Gyr) of their superm…
Characterising the z 7.66 Type-II AGN candidate SMACS S06355 using BEAGLE-AGN and JWST NIRSpec/NIRCam
M. S. Silcock, E. Curtis-Lake, D. J. B. Smith +9
The presence of Active Galactic Nuclei (AGN) in low mass (Mstar Msun) galaxies at high redshift has been established, and it is important to characterise these…
The abundance and nature of high-redshift quiescent galaxies from JADES spectroscopy and the FLAMINGO simulations
William M. Baker, Seunghwan Lim, Francesco D'Eugenio +20
We use NIRSpec/MSA spectroscopy and NIRCam imaging to study a sample of 18 massive (dex), central quiescent galaxies at in the GOO…
GA-NIFS and EIGER: A merging quasar host at z=7 with an overmassive black hole
Madeline A. Marshall, Minghao Yue, Anna-Christina Eilers +22
The James Webb Space Telescope is revolutionising our ability to understand the host galaxies and local environments of high-z quasars. Here we obtain a comprehensive understanding…
Age-dating early quiescent galaxies: high star-formation efficiency, but consistent with direct, higher-redshift observations
Crispin Turner, Sandro Tacchella, Francesco D'Eugenio +9
We present a detailed analysis of JWST/NIRSpec and NIRCam observations of ZF-UDS-7329, a massive, quiescent galaxy at redshift , which has been put forward to challenge cosm…
ALMA observations of super-early galaxies: attenuation-free model predictions
A. Ferrara, S. Carniani, F. di Mascia +3
The abundance and blue color of super-early (redshift ), luminous galaxies discovered by JWST can be explained if radiation-driven outflows have ejected their dust on kpc-sca…
The eventful life of a luminous galaxy at z = 14: metal enrichment, feedback, and low gas fraction?
Stefano Carniani, Francesco D'Eugenio, Xihan Ji +25
JADES-GS-z14-0 is the most distant spectroscopically confirmed galaxy yet, at . With a UV magnitude of -20.81, it is one of the most luminous galaxies at cosmic dawn and its…
A Systematic Search for Galaxies with Extended Emission Line and Potential Outflows in JADES Medium-Band Images
Yongda Zhu, Marcia J. Rieke, Zhiyuan Ji +20
For the first time, we present a systematic search for galaxies with extended emission line and potential outflow features using \textit{JWST} medium-band images in the GOODS-S fie…
JADES: Measuring reionization properties using Lyman-alpha emission
Gareth C. Jones, Andrew J. Bunker, Aayush Saxena +19
Ly is the transition to the ground state from the first excited state of hydrogen (the most common element). Resonant scattering of this line by neutral hydrogen greatly impedes…
Ionising properties of galaxies in JADES for a stellar mass complete sample: resolving the cosmic ionising photon budget crisis at the Epoch of Reionisation
C. Simmonds, S. Tacchella, K. Hainline +26
We use NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the ionising properties of a sample of 15721 galaxies at , 90\%…
JWST/NIRSpec WIDE survey: a z=4.6 low-mass star-forming galaxy hosting a jet-driven shock with low ionisation and solar metallicity
Francesco D'Eugenio, Roberto Maiolino, Vijay H. Mahatma +14
We present NIRSpec/MSA observations from the JWST large-area survey WIDE, targeting the rest-frame UV-optical spectrum of Ulema, a radio-AGN host at redshift z=4.6348. The low-reso…
Witnessing the onset of reionisation via Lyman- emission at redshift 13
Joris Witstok, Peter Jakobsen, Roberto Maiolino +34
$\require{mediawiki-texvc}$Cosmic Reionisation commenced when ultraviolet (UV) radiation produced in the first galaxies began illuminating the cold, neutral gas that filled the pri…
The mass-metallicity relation as a ruler for galaxy evolution: insights from the James Webb Space Telescope
A. Pallottini, A. Ferrara, S. Gallerani +5
Galaxy evolution emerges from the balance between cosmic gas accretion, fueling star formation, and supernova (SN) feedback, regulating the metal enrichment. Hence, the stellar mas…
GA-NIFS: the interplay between merger, star formation and chemical enrichment in MACS1149-JD1 at z=9.11 with JWST/NIRSpec
Cosimo Marconcini, Francesco D'Eugenio, Roberto Maiolino +15
We present JWST/NIRSpec integral-field spectroscopy observations of the z ~ 9.11 lensed galaxy MACS1149-JD1, as part of the GA-NIFS programme. The data was obtained with both the G…