Search Results - "Witstok, J."
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Reionization Era Bright Emission Line Survey: Selection and Characterization of Luminous Interstellar Medium Reservoirs in the z > 6.5 Universe
Published in The Astrophysical journal (01-06-2022)“…Abstract The Reionization Era Bright Emission Line Survey (REBELS) is a cycle-7 ALMA Large Program (LP) that is identifying and performing a first…”
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The ionizing photon production efficiency at z ∼ 6 for Lyman-alpha emitters using JEMS and MUSE
Published in Monthly notices of the Royal Astronomical Society (22-06-2023)“…ABSTRACT We study the ionizing photon production efficiency at the end of the Epoch of Reionization (z ∼ 5.4 − 6.6) for a sample of 30 Ly α emitters. This is a…”
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Identification and properties of intense star-forming galaxies at redshifts z > 10
Published in Nature astronomy (01-05-2023)“…Surveys with the James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have…”
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Low-mass bursty galaxies in JADES efficiently produce ionizing photons and could represent the main drivers of reionization
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT We use deep imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the evolution of the ionizing photon production efficiency,…”
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Ionising properties of galaxies in JADES for a stellar mass complete sample: resolving the cosmic ionising photon budget crisis at the Epoch of Reionisation
Published in Monthly notices of the Royal Astronomical Society (09-11-2024)“…Abstract We use NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the ionising properties of a sample of 14652 galaxies at 3 ≤…”
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New constraints on the molecular gas content of a $z\sim8$ galaxy from JVLA CO(J=2-1) observations
Published 08-12-2023“…As the primary fuel for star formation, molecular gas plays a key role in galaxy evolution. A number of techniques have been used for deriving the mass of…”
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GA-NIFS: ISM properties and metal enrichment in a merger-driven starburst during the Epoch of Reionisation probed with JWST and ALMA
Published 12-11-2024“…We present deep JWST/NIRSpec integral-field spectroscopy (IFS) and ALMA [CII]$\lambda$158$\mu$m observations of COS-3018, a star-forming galaxy at z$\sim$6.85,…”
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Ionising properties of galaxies in JADES for a stellar mass complete sample: resolving the cosmic ionising photon budget crisis at the Epoch of Reionisation
Published 02-09-2024“…We use NIRCam imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the ionising properties of a sample of 15721 galaxies at $3 \leq…”
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Low-mass bursty galaxies in JADES efficiently produce ionising photons and could represent the main drivers of reionisation
Published 02-10-2023“…We study galaxies in JADES Deep to study the evolution of the ionising photon production efficiency, $\xi_{\rm{ion}}$, observed to increase with redshift. We…”
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GA-NIFS: JWST/NIRSpec IFU observations of HFLS3 reveal a dense galaxy group at z~6.3
Published 31-08-2023“…Massive, starbursting galaxies in the early Universe represent some of the most extreme objects in the study of galaxy evolution. One such source is HFLS3…”
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The JWST-PRIMAL Legacy Survey. A JWST/NIRSpec reference sample for the physical properties and Lyman-$\alpha$ absorption and emission of $\sim 500$ galaxies at $z=5.5-13.4
Published 02-04-2024“…One of the surprising early findings with JWST has been the discovery of a strong "roll-over" or a softening of the absorption edge of Ly$\alpha$ in a large…”
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The chemical enrichment in the early Universe as probed by JWST via direct metallicity measurements at z~8
Published 26-09-2022“…We analyse the chemical properties of three z~8 galaxies behind the galaxy cluster SMACS J0723.3-7327, observed as part of the Early Release Observations…”
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Reionization Era Bright Emission Line Survey: Selection and Characterization of Luminous Interstellar Medium Reservoirs in the z>6.5 Universe
Published 02-03-2022“…The Reionization Era Bright Emission Line Survey (REBELS) is a cycle-7 ALMA Large Program (LP) that is identifying and performing a first characterization of…”
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Journal Article -
14
Identification and properties of intense star-forming galaxies at redshifts z>10
Published 12-04-2023“…Surveys with James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested…”
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Journal Article