S. Charlot
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View article: The JADES Origins Field: A New JWST Deep Field in the JADES Second NIRCam Data Release
The JADES Origins Field: A New JWST Deep Field in the JADES Second NIRCam Data Release Open
We summarize the properties and initial data release of the JADES Origins Field (JOF), the longest single pointing yet imaged with the James Webb Space Telescope (JWST). This field falls within the GOODS-S region about 8′ southwest of the …
View article: JADES: Carbon-enhanced, Nitrogen-normal compact galaxy at z=11.2
JADES: Carbon-enhanced, Nitrogen-normal compact galaxy at z=11.2 Open
Over the past few years JWST has been a major workhorse in detecting and constraining the metal enrichment of the first galaxies in the early Universe and finding the source of the ionisation of their interstellar medium. In this work, we …
View article: Deciphering the Nature of Virgil: An Obscured Active Galactic Nucleus Lurking within an Apparently Normal Ly <i>α</i> Emitter during Cosmic Reionization
Deciphering the Nature of Virgil: An Obscured Active Galactic Nucleus Lurking within an Apparently Normal Ly <i>α</i> Emitter during Cosmic Reionization Open
We present a comprehensive analysis of the MIRI Extremely Red Object Virgil, a Ly α emitter at z spec = 6.6379 ± 0.0035 with the photometric properties of a Little Red Dot. Leveraging new JWST/MIRI imaging from the MIDIS and PAHSPECS progr…
View article: DeepDISC photo-z catalog for JADES DR2 GOODS-S
DeepDISC photo-z catalog for JADES DR2 GOODS-S Open
README This file contains a photometric redshift catalog for all objects in the JADES DR2 GOODS-S sample. Photo-zs were derived using deep learning framework DeepDISC. Associated paper here. Abstract: Photo-z algorithms that utilize SED te…
View article: BlackTHUNDER – A non-stellar Balmer break in a black hole-dominated little red dot at <i>z</i> = 7.04
BlackTHUNDER – A non-stellar Balmer break in a black hole-dominated little red dot at <i>z</i> = 7.04 Open
Recent observations from James Webb Space Telescope (JWST) have revealed an abundant population of active galactic nuclei (AGNs) and the so-called ‘Little Red Dots’ (LRDs) at $2\lesssim z \lesssim 11$, many of which are characterized by V-…
View article: JADES-GS-z14-1: A Compact, Faint Galaxy at <i>z</i> ≈ 14 with Weak Metal Lines from Extremely Deep JWST MIRI, NIRCam, and NIRSpec Observations
JADES-GS-z14-1: A Compact, Faint Galaxy at <i>z</i> ≈ 14 with Weak Metal Lines from Extremely Deep JWST MIRI, NIRCam, and NIRSpec Observations Open
JWST has shed light on galaxy formation and metal enrichment within 300 Myr of the Big Bang. While luminous galaxies at z > 10 often show significant [O iii ] λλ 4959, 5007 emission lines, it remains unclear whether such features are preva…
View article: The <i>z</i> ≳ 9 Galaxy UV Luminosity Function from the JWST Advanced Deep Extragalactic Survey: Insights into Early Galaxy Evolution and Reionization
The <i>z</i> ≳ 9 Galaxy UV Luminosity Function from the JWST Advanced Deep Extragalactic Survey: Insights into Early Galaxy Evolution and Reionization Open
The high-redshift UV luminosity function provides important insights into the evolution of early galaxies. JWST has revealed an unexpectedly large population of bright ( M UV ≲ −20) galaxies at z ≳ 10, implying fundamental changes in the s…
View article: JADES: The Star Formation and Dust Attenuation Properties of Galaxies at 3
JADES: The Star Formation and Dust Attenuation Properties of Galaxies at 3 Open
We present the star formation and dust attenuation properties for a sample of 602 galaxies at redshifts $\rm{3
View article: Tentative rotation in a galaxy at <i>z</i> ~ 14 with ALMA
Tentative rotation in a galaxy at <i>z</i> ~ 14 with ALMA Open
We reanalysed the Atacama Large Millimeter/submillimeter Array (ALMA) observations of the [O iii] $\lambda 88 \, \mu$m emission line in JADES-GS-z14-0, so one of the most distant spectroscopically confirmed galaxies at z = 14.18. Our analy…
View article: GA-NIFS: an extended [OIII] halo around the sub-Eddington quasar J1342+0928 at z=7.54
GA-NIFS: an extended [OIII] halo around the sub-Eddington quasar J1342+0928 at z=7.54 Open
The James Webb Space Telescope (\textit{JWST}) opened a new observational window on the primordial Universe. Here we present new JWST NIRSpec integral field spectroscopy (IFS) observations of the $z=7.54$ quasar ULAS J1342+0928 obtained as…
View article: GA-NIFS and EIGER: A merging quasar host at <i>z</i> = 7 with an overmassive black hole
GA-NIFS and EIGER: A merging quasar host at <i>z</i> = 7 with an overmassive black hole Open
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 of the host galaxy of the z = 7.08 quasar J1120+0641 by c…
View article: Semiempirical versus Theoretical Stellar Population Models: A Comparison with Star Clusters
Semiempirical versus Theoretical Stellar Population Models: A Comparison with Star Clusters Open
Stellar population synthesis (SPS) models are a key tool for deriving the age, metallicity, radial velocity, and reddening of star clusters from their integrated spectra. Using a sample of 129 star clusters with high-quality spectra, we an…
View article: GA-NIFS: The highly overdense system BR1202-0725 at <i>z</i> ∼ 4.7
GA-NIFS: The highly overdense system BR1202-0725 at <i>z</i> ∼ 4.7 Open
Distant quasars (QSOs) in galaxy overdensities are considered key actors in the evolution of the early Universe. In this work, we performed an analysis of the kinematic and physical properties of the BR1202-0725 system at z ∼ 4.7, one of t…
View article: Characterizing the z ≈ 7.66 Type-II AGN candidate SMACS S06355 using BEAGLE-AGN and <i>JWST</i> NIRSpec/NIRCam
Characterizing the z ≈ 7.66 Type-II AGN candidate SMACS S06355 using BEAGLE-AGN and <i>JWST</i> NIRSpec/NIRCam Open
The presence of Active Galactic Nuclei (AGNs) in low mass ($\mathrm{M_{\star }\lesssim 10^{9}}\, \mathrm{M_{\odot }}$) galaxies at high redshift has been established, and it is important to characterize these objects and the impact of thei…
View article: JADES – the small blue bump in GN-z11: insights into the nuclear region of a galaxy at <i>z</i> = 10.6
JADES – the small blue bump in GN-z11: insights into the nuclear region of a galaxy at <i>z</i> = 10.6 Open
We report the detection of continuum excess in the rest-frame ultraviolet (UV) between 3000 and 3550 Å in the JWST/Near Infrared Spectrograph (NIRSpec) spectrum of GN-z11, a luminous galaxy $z=10.603$. The shape of the continuum excess res…
View article: GA-NIFS: Mapping <i>z</i> ≃ 3.5 AGN-driven ionized outflows in the COSMOS field
GA-NIFS: Mapping <i>z</i> ≃ 3.5 AGN-driven ionized outflows in the COSMOS field Open
Active galactic nuclei (AGNi) are a key ingredient in galaxy evolution and possibly shape galaxy growth through the generation of powerful outflows. Little is known regarding AGN-driven ionized outflows in moderate-luminosity AGNi (log( L …
View article: GA-NIFS: witnessing the complex assembly of a star-forming system at <b> <i>z</i> = 5.7</b>
GA-NIFS: witnessing the complex assembly of a star-forming system at <b> <i>z</i> = 5.7</b> Open
We present observations of the $z\sim 5.7$ Lyman-break galaxy HZ10 with the JWST/NIRSpec integral field unit in high and low spectral resolution (G395H, spectral resolving power $R\sim 2700$ and PRISM, $R\sim 100$, respectively), as part o…
View article: GA-NIFS: Dissecting the multiple sub-structures and probing their complex interactions in the Lyα emitter galaxy CR7 at z = 6.6 with JWST/NIRSpec
GA-NIFS: Dissecting the multiple sub-structures and probing their complex interactions in the Lyα emitter galaxy CR7 at z = 6.6 with JWST/NIRSpec Open
We present JWST/NIRSpec integral field spectroscopic (IFS) observations of the Lyα emitter CR7 at z ∼ 6.6, observed as part of the GA-NIFS program. Using low-resolution PRISM (R ∼ 100) data, we confirm the observation of a bright Lyα emitt…
View article: The Stellar Populations and Rest-Frame Colors of Star-Forming Galaxies at $z \approx 8$: Exploring the Impact of Filter Choice and Star Formation History Assumption with JADES
The Stellar Populations and Rest-Frame Colors of Star-Forming Galaxies at $z \approx 8$: Exploring the Impact of Filter Choice and Star Formation History Assumption with JADES Open
Our understanding of the physical properties of star-forming galaxies during the Epoch of Reionization (EoR, at $z > 6$) suffers from degeneracies among the apparent properties of the stars, the nebular gas, and the dust. These degeneracie…
View article: A black hole in a near-pristine galaxy 700 million years after the Big Bang
A black hole in a near-pristine galaxy 700 million years after the Big Bang Open
The recent discovery of a large number of massive black holes within the first two billion years after the Big Bang, as well as their peculiar properties, have been largely unexpected based on the extrapolation of the properties of luminou…
View article: Constraining the major merger history of <i>z</i> ∼ 3–9 galaxies using JADES: dominant <i>in situ</i> star formation
Constraining the major merger history of <i>z</i> ∼ 3–9 galaxies using JADES: dominant <i>in situ</i> star formation Open
We present a comprehensive analysis of galaxy close-pair fractions and major merger rates to evaluate the importance of mergers in the hierarchical growth of galaxies over cosmic time. This study focuses on the previously poorly understood…
View article: JADES: nitrogen enhancement in high-redshift broad-line active galactic nuclei
JADES: nitrogen enhancement in high-redshift broad-line active galactic nuclei Open
The unexpectedly high nitrogen-to-oxygen (N/O) ratios observed in high-redshift (z) galaxies have challenged our understanding of early star formation. Notably, many of these nitrogen-rich galaxies show signatures of active galactic nuclei…
View article: Resolving the nature and putative nebular emission of GS9422: an obscured AGN without exotic stars
Resolving the nature and putative nebular emission of GS9422: an obscured AGN without exotic stars Open
Understanding the sources that power nebular emission in high-redshift galaxies is fundamentally important not only for shedding light on to the drivers of reionization, but to constrain stellar populations and the growth of black holes. H…
View article: JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST
JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST Open
The depth and coverage of the first years of JWST observations have revealed low luminosity active galactic nuclei (AGN) across a wide redshift range, shedding light on black hole (BH) assembly and feedback. We present our spectroscopic sa…
View article: Semi-empirical versus Theoretical Stellar Population Models: a comparison with Star Clusters
Semi-empirical versus Theoretical Stellar Population Models: a comparison with Star Clusters Open
Stellar population synthesis (SPS) models are a key tool for deriving the age, metallicity, radial velocity and reddening of star clusters from their integrated spectra. Using a sample of 129 star clusters with high-quality spectra, we ana…
View article: JADES: Differing assembly histories of galaxies
JADES: Differing assembly histories of galaxies Open
We used deep NIRSpec spectroscopic data from the JADES survey to derive the star formation histories (SFHs) of a sample of 200 galaxies at 0.6 < z < 11 that span stellar masses from 10 6 to 10 9.5 M ⊙ . We found that galaxies at high redsh…
View article: GA-NIFS: ISM properties and metal enrichment in a merger-driven starburst during the epoch of reionization probed with <i>JWST</i> and ALMA
GA-NIFS: ISM properties and metal enrichment in a merger-driven starburst during the epoch of reionization probed with <i>JWST</i> and ALMA Open
We present deep JWST/NIRSpec integral-field spectroscopy (IFS) and ALMA [C ii]$\lambda $158$\mu$m observations of COS-3018, a star-forming galaxy at z $\sim$ 6.85, as part of the GA-NIFS programme. Both G395H (R $\sim$ 2700) and PRISM (R $…
View article: JADES: A large population of obscured, narrow-line active galactic nuclei at high redshift
JADES: A large population of obscured, narrow-line active galactic nuclei at high redshift Open
We present the identification of 41 narrow-line active galactic nuclei (type-2 AGN) candidates in the two deepest observations of the JADES spectroscopic survey with JWST/NIRSpec. The spectral coverage and the depth of our observations all…
View article: Witnessing the onset of reionization through Lyman-α emission at redshift 13
Witnessing the onset of reionization through Lyman-α emission at redshift 13 Open
Cosmic reionization began when ultraviolet (UV) radiation produced in the first galaxies began illuminating the cold, neutral gas that filled the primordial Universe 1,2 . Recent James Webb Space Telescope (JWST) observations have shown th…
View article: The abundance and nature of high-redshift quiescent galaxies from JADES spectroscopy and the FLAMINGO simulations
The abundance and nature of high-redshift quiescent galaxies from JADES spectroscopy and the FLAMINGO simulations Open
We use NIRSpec/MSA (Micro Shutter Assembly) spectroscopy and NIRCam (Near-Infrared Camera) imaging to study a sample of 18 massive ($\log M_\star /\mathrm{M}_\odot \gt 10$ dex), central quiescent galaxies at $2\le z \le 5$ in the GOODS (Gr…