Jacqueline Hodge
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View article: A first systematic study of [OIII] 88$μ$m at $z>8$: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years
A first systematic study of [OIII] 88$μ$m at $z>8$: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years Open
We present deep ALMA Band 7 observations of the [OIII] $88μ$m line and underlying dust continuum emission in four UV-bright, gravitationally lensed (magnification $μ= 1.4-3.8$), JWST-selected galaxies at $z = 8.5 - 10.3$, with observed mag…
View article: REBELS-IFU: dust build-up in massive galaxies at redshift 7
REBELS-IFU: dust build-up in massive galaxies at redshift 7 Open
In recent years, observations with the James Webb Space Telescope (JWST) have started to map out the rapid metal enrichment of the early Universe, while (sub)millimetre observations have simultaneously begun to reveal the ubiquity of dust …
View article: The ALMA REBELS survey: [O <scp>iii</scp>]88μm line scans of UV-bright <i>z</i> ≳ 7.6 galaxies
The ALMA REBELS survey: [O <span>iii</span>]88μm line scans of UV-bright <i>z</i> ≳ 7.6 galaxies Open
We present the [O iii]$_{88\mu \text{m}}$ spectral scan results from the ALMA Large Program REBELS (Reionization Era Bright Emission Line Survey). The generally high luminosity of [O iii]$_{88\mu \text{m}}$ and ALMA’s Band 7 efficiency mot…
View article: CO(1–0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift
CO(1–0) imaging reveals 10-kiloparsec molecular gas reservoirs around star-forming galaxies at high redshift Open
Massive star-forming galaxies at high redshift require a supply of molecular gas from their gas reservoirs that is replenished by infall from the surrounding circumgalactic medium to sustain their immense star formation rates. Our knowledg…
View article: Detection of [O <scp>iii</scp>]<sub>88 <i>μ</i>m</sub> in JADES-GS-z14-0 at <i>z</i> = 14.1793
Detection of [O <span>iii</span>]<sub>88 <i>μ</i>m</sub> in JADES-GS-z14-0 at <i>z</i> = 14.1793 Open
We report the first successful Atacama Large Millimeter/submillimeter Array (ALMA) follow-up observations of a secure z > 10 JWST-selected galaxy, by robustly detecting (6.6 σ ) the [O iii ] 88 μ m line in JADES-GS-z14-0 (hereafter GS-z14)…
View article: A Comparative Study of the Ground State Transitions of CO and C <scp>i</scp> as Molecular Gas Tracers at High Redshift
A Comparative Study of the Ground State Transitions of CO and C <span>i</span> as Molecular Gas Tracers at High Redshift Open
The CO(1–0) and [C i ](1–0) emission lines are well-established tracers of cold molecular gas mass in local galaxies. At high redshift, where the interstellar medium is likely to be denser, there have been limited direct comparisons of bot…
View article: Avoiding (photo-<i>z</i>) Catastrophe
Avoiding (photo-<i>z</i>) Catastrophe Open
Spectral modeling codes that estimate photometric redshifts (photo- z ) are a powerful and often reliable method for determining redshifts of galaxies. However, there are notable instances where degeneracies in spectral energy distribution…
View article: Avoiding (photo-$z$) Catastrophe
Avoiding (photo-$z$) Catastrophe Open
Spectral modeling codes that estimate photometric redshifts (photo-$z$) are a powerful and often reliable method for determining redshifts of galaxies. However, there are notable instances where degeneracies in spectral energy distribution…
View article: The ALMA-CRISTAL survey: Gas, dust, and stars in star-forming galaxies when the Universe was ∼1 Gyr old
The ALMA-CRISTAL survey: Gas, dust, and stars in star-forming galaxies when the Universe was ∼1 Gyr old Open
We present the ALMA-CRISTAL survey, an ALMA Cycle 8 Large Program designed to investigate the physical properties of star-forming galaxies at 4 ≲ z ≲ 6 through spatially resolved, multiwavelength observations. This survey targets 19 star-f…
View article: REBELS-IFU: dust attenuation curves of 12 massive galaxies at <i>z</i> ≃ 7
REBELS-IFU: dust attenuation curves of 12 massive galaxies at <i>z</i> ≃ 7 Open
We present measurements of the dust attenuation curves of 12 massive ($9~<~\log$($M_{\star }$/${\rm M}_{\odot }$) $<~10$) Lyman-break galaxies at $z=6.5 \!\!-\!\! 7.7$ derived from JWST NIRSpec integral field unit spectroscopy. The g…
View article: Deep Constraints on [CII]158$μ$m in JADES-GS-z14-0: Further Evidence for a Galaxy with Low Gas Content at z=14.2
Deep Constraints on [CII]158$μ$m in JADES-GS-z14-0: Further Evidence for a Galaxy with Low Gas Content at z=14.2 Open
We present deep ALMA observations targeting the [CII]$_{158μm}\,$ line in JADES-GS-z14-0, the most distant known galaxy at z=14.1793. We do not detect the [CII]$_{158μm}\,$ line in our deep observations, implying a luminosity of $<$6$\time…
View article: Revealing the hidden cosmic feast: A <i>z</i> = 4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
Revealing the hidden cosmic feast: A <i>z</i> = 4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies Open
We present the confirmation of a compact galaxy group candidate, CGG-z4, at z = 4.3 in the COSMOS field. This structure was identified by two spectroscopically confirmed z = 4.3 K s -dropout galaxies with ALMA 870 μm and 3 mm continuum det…
View article: REBELS-IFU: Evidence for metal-rich massive galaxies at z~6-8
REBELS-IFU: Evidence for metal-rich massive galaxies at z~6-8 Open
Metallicity is a crucial tracer of galaxy evolution, providing insights into gas accretion, star formation, and feedback. At high redshift, these processes reveal how early galaxies assembled and enriched their interstellar medium. In this…
View article: REBELS-IFU: Dust attenuation curves of 12 massive galaxies at $z\simeq7$
REBELS-IFU: Dust attenuation curves of 12 massive galaxies at $z\simeq7$ Open
We present measurements of the dust attenuation curves of 12 massive ($9~<~\log$($M_{\star}/{M}_{\odot})$ $<~10$) Lyman-break galaxies at $z=6.5-7.7$ derived from James Webb Space Telescope (JWST) NIRSpec integral field unit (IFU) spectros…
View article: REBELS-IFU: Dust Build-up in Massive Galaxies at Redshift 7
REBELS-IFU: Dust Build-up in Massive Galaxies at Redshift 7 Open
In recent years, observations with the JWST have started to map out the rapid metal enrichment of the early Universe, while (sub)millimeter observations have simultaneously begun to reveal the ubiquity of dust beyond $z\gtrsim6$. However, …
View article: ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of <i>z</i> ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events
ALESS-JWST: Joint (Sub)kiloparsec JWST and ALMA Imaging of <i>z</i> ~ 3 Submillimeter Galaxies Reveals Heavily Obscured Bulge Formation Events Open
We present JWST NIRCam imaging targeting 13 z ~ 3 infrared-luminous ( L IR ∼ 5 × 10 12 L ⊙ ) galaxies from the ALESS survey with uniquely deep, high-resolution (0 08–0 16) Atacama Large Millimeter/submillimeter Array 870 μ m im…
View article: Revealing the hidden cosmic feast: A z=4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
Revealing the hidden cosmic feast: A z=4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies Open
We present the confirmation of a compact galaxy group candidate, CGG-z4, at $z=4.3$ in the COSMOS field. This structure was identified by two spectroscopically confirmed $z=4.3$ $K_s$-dropout galaxies with ALMA $870\rm\, μm$ and 3 mm conti…
View article: Behind the dust veil: A panchromatic view of an optically dark galaxy at <i>z</i> = 4.82
Behind the dust veil: A panchromatic view of an optically dark galaxy at <i>z</i> = 4.82 Open
Optically dark dusty star-forming galaxies (DSFGs) play an essential role in massive galaxy formation at early cosmic time; however, their nature remains elusive. Here, we present a detailed case study of all the baryonic components of a z…
View article: The kinematics of massive high-redshift dusty star-forming galaxies
The kinematics of massive high-redshift dusty star-forming galaxies Open
We present a new method for modelling the kinematics of galaxies from interferometric observations by performing the optimization of the kinematic model parameters directly in visibility space instead of the conventional approach of fittin…
View article: Behind the dust veil: A panchromatic view of an optically dark galaxy at z=4.82
Behind the dust veil: A panchromatic view of an optically dark galaxy at z=4.82 Open
Optically dark dusty star-forming galaxies (DSFGs) play an essential role in massive galaxy formation at early cosmic time, however their nature remains elusive. Here we present a detailed case study of all the baryonic components of a $z=…
View article: The ALMA-CRISTAL Survey: Spatially Resolved Star Formation Activity and Dust Content in 4 < z < 6 Star-forming Galaxies
The ALMA-CRISTAL Survey: Spatially Resolved Star Formation Activity and Dust Content in 4 < z < 6 Star-forming Galaxies Open
Using a combination of Hubble Space Telescope (HST), JWST, and Atacama Large Millimeter/submillimeter Array (ALMA) data, we perform spatially resolved spectral energy distributions (SED) fitting of fourteen 4 < z < 6 ultraviolet (UV)-selec…
View article: REBELS-25: discovery of a dynamically cold disc galaxy at z = 7.31
REBELS-25: discovery of a dynamically cold disc galaxy at z = 7.31 Open
We present high-resolution ($\sim 0.14$ arcsec = 710 pc) Atacama Large Millimetre/submillimetre Array [C ii] 158 $\mu$m and dust continuum follow-up observations of REBELS-25, a [C ii]-luminous ($L_{\mathrm{[CII]}}=(1.7\pm 0.2)\times 10^9\…
View article: A photo-<i>z</i> cautionary tale: Redshift confirmation of COSBO-7 at <i>z</i> = 2.625
A photo-<i>z</i> cautionary tale: Redshift confirmation of COSBO-7 at <i>z</i> = 2.625 Open
Photometric redshifts are widely used in studies of dusty star-forming galaxies (DSFGs), but catastrophic photo- z failure can undermine all redshift-dependent results. Here we report the spectroscopic redshift confirmation of COSBO-7, a s…
View article: Detection of [OIII]88$μ$m in JADES-GS-z14-0 at z=14.1793
Detection of [OIII]88$μ$m in JADES-GS-z14-0 at z=14.1793 Open
We report the first successful ALMA follow-up observations of a secure $z > 10$ JWST-selected galaxy, by robustly detecting ($6.6σ$) the [OIII]$_{88μm}\,$ line in JADES-GS-z14-0 (hereafter GS-z14). The ALMA detection yields a spectroscopic…
View article: Characterising the contribution of dust-obscured star formation at <i>z</i> ≳ 5 using 18 serendipitously identified [<scp>C ii</scp>] emitters
Characterising the contribution of dust-obscured star formation at <i>z</i> ≳ 5 using 18 serendipitously identified [<span>C ii</span>] emitters Open
We present a new method to determine the star formation rate density (SFRD) of the Universe at $z \gtrsim 5$ that includes the contribution of dust-obscured star formation. For this purpose, we use a [C ii] (158 $\mu$m) selected sample of …
View article: Accurate simultaneous constraints on the dust mass, temperature, and emissivity index of a galaxy at redshift 7.31
Accurate simultaneous constraints on the dust mass, temperature, and emissivity index of a galaxy at redshift 7.31 Open
We present new multifrequency Atacama Large Millimeter/submillimeter Array (ALMA) continuum observations of the massive [$\log _{10}(M_\star /\mathrm{M}_\odot) = 10.3_{-0.2}^{+0.1}$], UV-luminous [$M_\mathrm{UV} = -21.7 \pm 0.2$] $z=7.31$ …
View article: Accurate Simultaneous Constraints on the Dust Mass, Temperature and Emissivity Index of a Galaxy at Redshift 7.31
Accurate Simultaneous Constraints on the Dust Mass, Temperature and Emissivity Index of a Galaxy at Redshift 7.31 Open
We present new multi-frequency ALMA continuum observations of the massive [$\log_{10}(M_\star/M_\odot) = 10.3_{-0.2}^{+0.1}$], UV-luminous [$M_\mathrm{UV} = -21.7 \pm 0.2$] $z=7.31$ galaxy REBELS-25 in Bands 3, 4, 5, and 9. Combining the n…
View article: REBELS-25: Discovery of a dynamically cold disc galaxy at z = 7.31
REBELS-25: Discovery of a dynamically cold disc galaxy at z = 7.31 Open
We present high resolution ($\sim0.14$" = 710 pc) ALMA [CII] 158$μ$m and dust continuum follow-up observations of REBELS-25, a [CII]-luminous ($L_{\mathrm{[CII]}}=(1.7\pm0.2)\times 10^9 \mathrm{L_{\odot}}$) galaxy at redshift $z=7.3065\pm0…
View article: A Comparative Study of the Ground State Transitions of CO and [C I] as Molecular Gas Tracers at High Redshift
A Comparative Study of the Ground State Transitions of CO and [C I] as Molecular Gas Tracers at High Redshift Open
The CO(1--0) and [\ion{C}{1}](1--0) emission lines are well-established tracers of cold molecular gas mass in local galaxies. At high redshift, where the interstellar medium (ISM) is likely to be denser, there have been limited direct comp…
View article: Metal and dust evolution in ALMA REBELS galaxies: insights for future <i>JWST</i> observations
Metal and dust evolution in ALMA REBELS galaxies: insights for future <i>JWST</i> observations Open
Atacama Large Millimeter/submillimeter Array (ALMA) observations revealed the presence of significant amounts of dust in the first Gyr of Cosmic time. However, the metal and dust build-up picture remains very uncertain due to the lack of c…