Publications (51)
The Most Luminous z~9-10 Galaxy Candidates yet Found: The Luminosity Function, Cosmic Star-Formation Rate, and the First Mass Density Estimate at 500 Myr
P. A. Oesch, R. J. Bouwens, G. D. Illingworth +14
[abridged] We present the discovery of four surprisingly bright (H_160 ~ 26 - 27 mag AB) galaxy candidates at z~9-10 in the complete HST CANDELS WFC3/IR GOODS-N imaging data, doubl…
UV-Continuum Slopes of >4000 z~4-8 Galaxies from the HUDF/XDF, HUDF09, ERS, CANDELS-South, and CANDELS-North Fields
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +7
We measure the UV-continuum slope beta for over 4000 high-redshift galaxies over a wide range of redshifts z~4-8 and luminosities from the HST HUDF/XDF, HUDF09-1, HUDF09-2, ERS, CA…
The Prevalence of Galaxy Overdensities Around UV-Luminous Lyman Emitters in the Epoch of Reionization
E. Leonova, P. A. Oesch, Y. Qin +19
Before the end of the epoch of reionization, the Hydrogen in the Universe was predominantly neutral. This leads to a strong attenuation of Ly lines of galaxies in t…
The JWST FRESCO Survey: Legacy NIRCam/Grism Spectroscopy and Imaging in the two GOODS Fields
P. A. Oesch, G. Brammer, R. P. Naidu +38
We present the JWST Cycle 1 53.8hr medium program FRESCO, short for "First Reionization Epoch Spectroscopically Complete Observations". FRESCO covers 62 arcmin in each of the t…
The REBELS ALMA Survey: cosmic dust temperature evolution out to z 7
L. Sommovigo, A. Ferrara, A. Pallottini +27
ALMA observations have revealed the presence of dust in the first generations of galaxies in the Universe. However, the dust temperature remains mostly unconstrained due to t…
The ALMA REBELS survey: [OIII] line scans of UV-bright galaxies
I. F. van Leeuwen, R. J. Bouwens, J. A. Hodge +17
We present the [OIII] spectral scan results from the ALMA Large Program REBELS (Reionization Era Bright Emission Line Survey). The generally high luminosity of [OI…
A Census of Star-Forming Galaxies in the z~9-10 Universe based on HST+Spitzer Observations Over 19 CLASH clusters: Three Candidate z~9-10 Galaxies and Improved Constraints on the Star Formation Rate Density at z~9
R. Bouwens, L. Bradley, A. Zitrin +34
We utilise a two-color Lyman-Break selection criterion to search for z~9-10 galaxies over the first 19 clusters in the CLASH program. A systematic search yields three z~9-10 candid…
ALMA detection of extended [CII] emission in Himiko at z=6.6
S. Carniani, R. Maiolino, R. Smit +1
Himiko is one of the most luminous Lyα emitters at z = 6.595. It has three star forming clumps detected in the rest-frame UV, with a total SFR = 20 M/yr. We report the ALM…
The ALPINE-CRISTAL-JWST Survey: JWST/IFU Optical Observations for 18 Main-Sequence Galaxies at z=4-6
A. L. Faisst, S. Fujimoto, A. Tsujita +80
To fully characterize the formation and evolution of galaxies, we need to observe their stars, gas, and dust on resolved spatial scales. We present the ALPINE-CRISTAL-JWST survey,…
CLASH: A Census of Magnified Star-Forming Galaxies at z ~ 6-8
L. D. Bradley, A. Zitrin, D. Coe +34
We utilize 16 band Hubble Space Telescope (HST) observations of 18 lensing clusters obtained as part of the Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Tre…
UV-continuum slopes at z~4-7 from the HUDF09+ERS+CANDELS observations: Discovery of a well-defined UV-color magnitude relationship for z>=4 star-forming galaxies
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +8
Ultra-deep ACS and WFC3/IR HUDF+HUDF09 data, along with the wide-area GOODS+ERS+CANDELS data over the CDF-S GOODS field, are used to measure UV colors, expressed as the UV-continuu…
Ultradeep IRAC Imaging Over The HUDF And GOODS-South: Survey Design And Imaging Data Release
I. Labbe, P. A. Oesch, G. D. Illingworth +11
The IRAC ultradeep field (IUDF) and IRAC Legacy over GOODS (IGOODS) programs are two ultradeep imaging surveys at 3.6μm and 4.5μm with the Spitzer Infrared Array Camera (IRAC). T…
Substellar and low-mass dwarf identification with near-infrared imaging space observatories
B. W. Holwerda, J. S. Bridge, R. Ryan +9
AIMS: We aim to evaluate the near-infrared colors of brown dwarfs as observed with four major infrared imaging space observatories: the Hubble Space Telescope (HST), the James Webb…
The ALMA REBELS Survey: The Cosmic HI Gas Mass Density in Galaxies at
K. E. Heintz, P. A. Oesch, M. Aravena +12
The neutral atomic gas content of individual galaxies at large cosmological distances has until recently been difficult to measure due to the weakness of the hyperfine HI 21-cm tra…
The ALMA REBELS Survey: the dust content of Lyman Break Galaxies
P. Dayal, A. Ferrara, L. Sommovigo +22
We include a fully coupled treatment of metal and dust enrichment into the Delphi semi-analytic model of galaxy formation to explain the dust content of 13 Lyman Break Galaxies (LB…
A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy
P. A. Oesch, G. Brammer, P. G. van Dokkum +15
We present Hubble WFC3/IR slitless grism spectra of a remarkably bright galaxy candidate, GN-z11, identified initially from CANDELS/GOODS-N imaging data. A significant…
Characterizing faint galaxies in the reionization epoch: LBT confirms two L<0.2L* sources at z=6.4 behind the CLASH/Frontier Fields cluster MACS0717.5+3745
E. Vanzella, A. Fontana, A. Zitrin +18
We report the LBT/MODS1 spectroscopic confirmation of two images of faint Lyman alpha emitters at behind the Frontier Fields galaxy cluster MACSJ0717.5+3745. A wide range o…
The Lyman-Continuum Photon Production Efficiency xi_{ion} of z~4-5 Galaxies from IRAC-based Halpha Measurements: Implications for the Escape Fraction and Cosmic Reionization
R. J. Bouwens, R. Smit, I. Labbe +5
Galaxies represent one of the preferred candidate sources to drive the reionization of the universe. Even as gains are made in mapping the galaxy UV luminosity density to z>6, sign…
Spectroscopic confirmation of a gravitationally lensed Lyman break galaxy at z = 6.827 using NOEMA
S. J. Molyneux, R. Smit, D. Schaerer +8
We present the spectroscopic confirmation of the brightest known gravitationally lensed Lyman break galaxy in the Epoch of Reionisation, A1703-zD1, through the detection of [C II]…
CLASH-VLT: spectroscopic confirmation of a z=6.11 quintuply lensed galaxy in the Frontier Fields Cluster RXC J2248.7-4431
I. Balestra, E. Vanzella, P. Rosati +41
We present VIsible Multi-Object Spectrograph (VIMOS) observations of a z 6 galaxy quintuply imaged by the Frontier Fields galaxy cluster RXC J2248.7-4431 (z=0.348). This sub-L^*, h…
REBELS-IFU: Steeply rising star formation histories and the importance of dust obscuration in massive galaxies revealed by multi-wavelength observations
R. Fisher, R. A. A. Bowler, R. K. Cochrane +15
Reliable star formation rate (SFR) measurements are essential for understanding early galaxy evolution, yet derived values rely on several assumptions. To address this problem, we…
Young Galaxy Candidates in the Hubble Frontier Fields. I. Abell 2744
W. Zheng, X. Shu, J. Moustakas +10
We report the discovery of 24 Lyman-break candidates at 7<z<10.5, in the Hubble Frontier Fields (HFF) imaging data of Abell 2744 (z=0.308), plus Spiter/IRAC data and archival ACS d…
The Quasar Feedback Survey: characterising CO excitation in quasar host galaxies
S. J. Molyneux, G. Calistro Rivera, C. De Breuck +15
We present a comprehensive study of the molecular gas properties of 17 Type 2 quasars at 0.2 from the Quasar Feedback Survey (L > ), sel…
Kiloparsec-scale gaseous clumps and star formation at
S. Carniani, R. Maiolino, R. Amorin +13
We investigate the morphology of the [CII] emission in a sample of "normal" star-forming galaxies at in relation to their UV (rest-frame) counterpart. We use new ALMA obs…
The ALMA REBELS Survey. Epoch of Reionization giants: properties of dusty galaxies at
A. Ferrara, L. Sommovigo, P. Dayal +27
We analyse FIR dust continuum measurements for 14 galaxies () in the ALMA REBELS LP to derive their physical properties. Our model uses three input data: (a) the UV spe…
Reionization Era Bright Emission Line Survey: Selection and Characterization of Luminous Interstellar Medium Reservoirs in the z>6.5 Universe
R. J. Bouwens, R. Smit, S. Schouws +28
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 many of the most lumin…
Heat capacity of anisotropic Heisenberg antiferromagnet within the spin Hartree-Fock approach in quasi-1D Regime
R. Smit, P. Kopietz, O. Tsyplyatyev
We study the anisotropic quantum Heisenberg antiferromagnet for spin-1/2 that interpolates smoothly between the one-dimensional (1D) and the two-dimensional (2D) limits. Using the…
Z > 7 galaxies with red Spitzer/IRAC [3.6]-[4.5] colors in the full CANDELS data set: the brightest-known galaxies at Z ~ 7-9 and a probable spectroscopic confirmation at Z=7.48
G. W. Roberts-Borsani, R. J. Bouwens, P. A. Oesch +9
We identify 4 unusually bright (H < 25.5) galaxies from HST and Spitzer CANDELS data with probable redshifts z ~ 7-9. These identifications include the brightest-known galaxies to…
The chemical enrichment in the early Universe as probed by JWST via direct metallicity measurements at z~8
M. Curti, F. D'Eugenio, S. Carniani +30
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 programme of the James Web…
The GREATS H+[OIII] Luminosity Function and Galaxy Properties at : Walking the Way of JWST
S. De Barros, P. A. Oesch, I. Labbé +5
The James Webb Space Telescope will allow to spectroscopically study an unprecedented number of galaxies deep into the reionization era, notably by detecting [OIII] and H nebul…
UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +11
The remarkable HST datasets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map out the evolution of the UV LF from z~10 to z~4. We have identif…
NOEMA observations of GN-z11: Constraining Neutral Interstellar Medium and Dust Formation in the Heart of Cosmic Reionization at
Y. Fudamoto, P. A. Oesch, F. Walter +17
We present results of dust continuum and [CII] emission line observations of a remarkably UV-luminous () galaxy at : GN-z11. Using the…
Identification and properties of intense star-forming galaxies at redshifts z>10
B. E. Robertson, S. Tacchella, B. D. Johnson +53
Surveys with James Webb Space Telescope (JWST) have discovered candidate galaxies in the first 400 Myr of cosmic time. Preliminary indications have suggested these candidate galaxi…
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 pro…
Through the Looking Glass: Bright, Highly Magnified Galaxy Candidates at z~7 Behind Abell 1703
L. D. Bradley, R. J. Bouwens, A. Zitrin +7
We report the discovery of seven strongly lensed Lyman break galaxy (LBG) candidates at z~7 detected in Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) imaging of Abell 170…
A Spectroscopic Redshift Measurement for a Luminous Lyman Break Galaxy at z=7.730 using Keck/MOSFIRE
P. A. Oesch, P. G. van Dokkum, G. D. Illingworth +9
We present a spectroscopic redshift measurement of a very bright Lyman break galaxy at z=7.7302+-0.0006 using Keck/MOSFIRE. The source was pre-selected photometrically in the EGS f…
The ALMA REBELS survey: obscured star formation in massive Lyman-break galaxies at z = 4-8 revealed by the IRX- and relations
R. A. A. Bowler, H. Inami, L. Sommovigo +23
We investigate the degree of dust obscured star formation in 49 massive () Lyman-break galaxies (LBGs) at - observed as par…
Newly Discovered Bright z~9-10 Galaxies and Improved Constraints on Their Prevalence Using the Full CANDELS Area
R. J. Bouwens, M. Stefanon, P. A. Oesch +5
We report the results of an expanded search for z~9-10 candidates over the ~883 arcmin^2 CANDELS+ERS fields. This study adds 147 arcmin^2 to the search area we consider over the CA…
Photometric Constraints on the Redshift of z~10 candidate UDFj-39546284 from deeper WFC3/IR+ACS+IRAC observations over the HUDF
R. J. Bouwens, P. A. Oesch, G. D. Illingworth +10
Ultra-deep WFC3/IR observations on the HUDF from the HUDF09 program revealed just one plausible z~10 candidate UDFj-39546284. UDFj-39546284 had all the properties expected of a gal…
Structure and kinematics of a massive galaxy at z ~ 7
A. C. Posses, M. Aravena, J. González-López +9
Observations of the rest-frame UV emission of high-redshift galaxies suggest that the early stages of galaxy formation involve disturbed structures. Imaging the cold interstellar m…
The JWST-PRIMAL Legacy Survey. A JWST/NIRSpec reference sample for the physical properties and Lyman- absorption and emission of galaxies at
K. E. Heintz, G. B. Brammer, D. Watson +45
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 in a large number of galaxies at ($z\g…
Beneath the Surface: >85% of z>5.9 QSOs in Massive Host Galaxies are UV-Faint
R. J. Bouwens, E. Banados, R. Decarli +20
We use [CII] observations of a large QSO sample to segregate sources by host galaxy mass, aiming to identify those in the most massive hosts. [CII] luminosity, a known tracer of mo…
Unveiling the Nature of Infrared Bright, Optically Dark Galaxies with Early JWST Data
L. Barrufet, P. A. Oesch, A. Weibel +18
Over the last few years, both ALMA and Spitzer/IRAC observations have revealed a population of likely massive galaxies at that was too faint to be detected in HST rest-frame…
Reionization after Planck: The Derived Growth of the Cosmic Ionizing Emissivity now matches the Growth of the Galaxy UV Luminosity Density
R. J. Bouwens, G. D. Illingworth, P. A. Oesch +4
Thomson optical depth tau measurements from Planck provide new insights into the reionization of the universe. In pursuit of model-independent constraints on the properties of the…
The ALMA REBELS Survey: Discovery of a massive, highly star-forming and morphologically complex ULIRG at
A. P. S. Hygate, J. A. Hodge, E. da Cunha +27
We present Atacama Large Millimeter/Submillimeter Array (ALMA) [CII] and continuum observations of REBELS-25, a massive, morphologically complex ultra-luminous i…
Normal, Dust-Obscured Galaxies in the Epoch of Reionization
Y. Fudamoto, P. A. Oesch, S. Schouws +26
Over the past decades, rest-frame ultraviolet (UV) observations have provided large samples of UV luminous galaxies at redshift (z) greater than 6, during the so-called epoch of re…
The ALMA REBELS Survey: Average [CII] sizes of Star-Forming Galaxies from to
Y. Fudamoto, R. Smit, R. A. A. Bowler +36
We present the average [CII] emission line sizes of UV-bright star-forming galaxies at . Our results are derived from a stacking analysis of [CII] $158\,\rm…
The Bright End of the z~9 and z~10 UV Luminosity Functions using all five CANDELS Fields
R. J. Bouwens, P. A. Oesch, I. Labbe +14
The deep, wide-area (~800-900 arcmin**2) near-infrared/WFC3/IR + Spitzer/IRAC observations over the CANDELS fields have been a remarkable resource for constraining the bright end o…
The ALMA-CRISTAL survey: Gas, dust, and stars in star-forming galaxies when the Universe was ~1 Gyr old I. Survey overview and case studies
R. Herrera-Camus, J. González-López, N. Förster Schreiber +44
We present the ALMA-CRISTAL survey, an ALMA Cycle 8 Large Program designed to investigate the physical properties of star-forming galaxies at through spat…
Evidence for Ubiquitous, High-EW Nebular Emission in z~7 Galaxies: Towards a Clean Measurement of the Specific Star Formation Rate using a Sample of Bright, Magnified Galaxies
R. Smit, R. J. Bouwens, I. Labbe +30
Growing observational evidence now indicates that nebular line emission has a significant impact on the rest-frame optical fluxes of z~5-7 galaxies observed with Spitzer. This line…
Mean Halpha+[NII]+[SII] EW Inferred for Star-Forming Galaxies at z=5.1-5.4 Using High-Quality Spitzer/IRAC Photometry
N. Rasappu, R. Smit, I. Labbe +4
Recent Spitzer/InfraRed Array Camera (IRAC) photometric observations have revealed that rest-frame optical emission lines contribute signficantly to the broadband fluxes of high-re…