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JWST UNCOVER: Extremely red and compact object at triply imaged by Abell 2744
Lukas J. Furtak, Adi Zitrin, Adèle Plat +29
Recent JWST/NIRCam imaging taken for the ultra-deep UNCOVER program reveals a very red dropout object at , triply imaged by the galaxy cluster Abell 274…
Spectroscopic confirmation of four metal-poor galaxies at z=10.3-13.2
Emma Curtis-Lake, Stefano Carniani, Alex Cameron +56
Finding and characterising the first galaxies that illuminated the early Universe at cosmic dawn is pivotal to understand the physical conditions and the processes that led to 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…
The JWST UNCOVER Treasury survey: Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization
Rachel Bezanson, Ivo Labbe, Katherine E. Whitaker +40
In this paper we describe the survey design for the Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization (UNCOVER) Cycle 1 \JWST Treasury program, which execu…
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…
Dual constraints with ALMA: new [O III] 88 m and dust-continuum observations reveal the ISM conditions of luminous LBGs at
Joris Witstok, Renske Smit, Roberto Maiolino +10
We present new [O III] 88 m observations of five bright Lyman-break galaxies spectroscopically confirmed by ALMA through the [C II] 158 m line, unlike…
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…
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…
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 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{…
ALMA Confirmation of an Obscured Hyperluminous Radio-Loud AGN at Associated with a Dusty Starburst in the 1.5 deg COSMOS Field
Ryan Endsley, Daniel P. Stark, Jianwei Lyu +7
We present band 6 ALMA observations of a heavily-obscured radio-loud ( W Hz) AGN candidate at found in the 1.5…
The ALMA REBELS Survey: Specific Star-Formation Rates in the Reionization Era
Michael W. Topping, Daniel P. Stark, Ryan Endsley +21
We present specific star-formation rates for 40 UV-bright galaxies at observed as part of the Reionization Era Bright Emission Line Survey (REBELS) ALMA large program. T…
The ALMA REBELS Survey: Dust Continuum Detections at z > 6.5
Hanae Inami, Hiddo S. B. Algera, Sander Schouws +25
We report 18 dust continuum detections () at and out of 49 ultraviolet(UV)-bright galaxies ( mag) at , observed…
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]…
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…
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…
ALMA as a Redshift Machine: Using [CII] to Efficiently Confirm Galaxies in the Epoch of Reionization
Sander Schouws, Rychard Bouwens, Renske Smit +11
The [CII] line has long been proposed as a promising line to spectroscopically confirm galaxies in the epoch of reionization. In this paper we present the results of new…
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: Efficient Ly Transmission of UV-Bright z7 Galaxies from Large Velocity Offsets and Broad Line Widths
Ryan Endsley, Daniel P. Stark, Rychard J. Bouwens +19
Recent work has shown that UV-luminous reionization-era galaxies often exhibit strong Lyman-alpha emission despite being situated at redshifts where the IGM is thought to be substa…