Pascal Oesch

The evolution of the cosmic molecular gas density

Fabian Walter, Chris Carilli, Roberto Decarli +38

One of the last missing pieces in the puzzle of galaxy formation and evolution through cosmic history is a detailed picture of the role of the cold gas supply in the star-formation…

The ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Evolution of the molecular gas in CO-selected galaxies

Manuel Aravena, Roberto Decarli, Jorge GÃ³nzalez-LÃ³pez +31

We analyze the interstellar medium properties of a sample of sixteen bright CO line emitting galaxies identified in the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (AS…

The AURORA Survey: A New Era of Emission-line Diagrams with JWST/NIRSpec

Alice E. Shapley, Ryan L. Sanders, Michael W. Topping +28

We present results on the emission-line properties of z=1.4-7.5 star-forming galaxies in the Assembly of Ultradeep Rest-optical Observations Revealing Astrophysics (AURORA) Cycle 1…

astro-ph.GA2014

3D-HST WFC3-selected Photometric Catalogs in the Five CANDELS/3D-HST Fields: Photometry, Photometric Redshifts and Stellar Masses

Rosalind E. Skelton, Katherine E. Whitaker, Ivelina G. Momcheva +24

The 3D-HST and CANDELS programs have provided WFC3 and ACS spectroscopy and photometry over ~900 square arcminutes in five fields: AEGIS, COSMOS, GOODS-North, GOODS-South, and the…

astro-ph.GA2021

Measuring the HI content of individual galaxies out to the epoch of reionization with [CII]

Kasper E. Heintz, Darach Watson, Pascal Oesch +2

The HI gas content is a key ingredient in galaxy evolution, the study of which has been limited to moderate cosmological distances for individual galaxies due to the weakness of th…

The Hubble Legacy Field GOODS-S Photometric Catalog

Katherine E. Whitaker, Mohammad Ashas, Garth Illingworth +12

This manuscript describes the public release of the Hubble Legacy Fields (HLF) project photometric catalog for the extended GOODS-South region from the Hubble Space Telescope (HST)…

Calibrating Photometric Mid-Infrared Star Formation Rates for JWST

Stacey Alberts, George H. Rieke, Irene Shivaei +13

The mid-infrared (IR) spectrum of galaxies has a long history as a valuable proxy for the dust-obscured star formation rate (SFR) in massive galaxies. Now, with JWST, we can explor…

The AURORA Survey: Tracing Galactic Outflows at $z ≳ 2.5$ with JWST/NIRSpec NUV Absorption Lines

Emily Kehoe, Alice E. Shapley, Ryan L. Sanders +13

We probe galactic-scale outflows in star-forming galaxies at $z ≳ 2.5$ drawn from the \textit{JWST}/NIRSpec AURORA program. For the first time, we directly compare outflow prop…

astro-ph.CO2013

Slow Evolution of the Specific Star Formation Rate at z>2: The Impact of Dust, Emission Lines, and A Rising Star Formation History

Valentino Gonzalez, Rychard Bouwens, Garth llingworth +4

We measure the evolution of the specific star formation rate (sSFR = SFR / Mstellar) between redshift 4 and 6 to investigate the previous reports of "constant" sSFR at z>2. We obta…

Characterising Ly $I^\pm$ damping wings at the onset of reionisation: Evidence for highly efficient star formation driven by dense, neutral gas in UV-bright galaxies at $z > 9$

Clara L. Pollock, Kasper E. Heintz, Joris Witstok +23

One of the major conundrums in contemporary extragalactic astrophysics is the apparent overabundance of a remarkable population of UV-bright galaxies at redshifts $z ≳ 9$ . We…

ALMA Lensing Cluster Survey: $H S T$ and $S p i t z er$ Photometry of 33 Lensed Fields Built with CHArGE

Vasily Kokorev, Gabriel Brammer, Seiji Fujimoto +30

We present a set of multi-wavelength mosaics and photometric catalogs in the ALMA lensing cluster survey (ALCS) fields. The catalogs were built by reprocessing of archival data fro…

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] $_{158 I^¼ m}$ 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…

Forming Compact Massive Galaxies

Pieter G. van Dokkum, Erica June Nelson, Marijn Franx +13

In this paper we study a key phase in the formation of massive galaxies: the transition of star forming galaxies into massive (M_stars~10^11 Msun), compact (r_e~1 kpc) quiescent ga…

Discovery of a dark, massive, ALMA-only galaxy at z~5-6 in a tiny 3-millimeter survey

Christina C. Williams, Ivo Labbe, Justin Spilker +7

We report the serendipitous detection of two 3 mm continuum sources found in deep ALMA Band 3 observations to study intermediate redshift galaxies in the COSMOS field. One is near…

ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Survey Description

Fabian Walter, Roberto Decarli, Manuel Aravena +39

We present the rationale for and the observational description of ASPECS: The ALMA SPECtroscopic Survey in the Hubble Ultra-Deep Field (UDF), the cosmological deep field that has t…

REBELS-IFU: Evidence for metal-rich massive galaxies at z~6-8

Lucie E. Rowland, Mauro Stefanon, Rychard Bouwens +30

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 galaxie…

The ALPINE-ALMA [C II] survey: the luminosity function of serendipitous [C II] line emitters at $z \sim 5$

Federica Loiacono, Roberto Decarli, Carlotta Gruppioni +32

We present the first [CII] 158 $I^¼$ m luminosity function (LF) at $z \sim 5$ from a sample of serendipitous lines detected in the ALMA Large Program to INvestigate [CII] at Early tim…

Accelerated Formation of Ultra-Massive Galaxies in the First Billion Years

Mengyuan Xiao, Pascal Oesch, David Elbaz +35

Recent JWST observations have revealed an unexpected abundance of massive galaxy candidates in the early Universe, extending further in redshift and to lower luminosity than what h…

Most of the photons that reionized the Universe came from dwarf galaxies

Hakim Atek, Ivo LabbÃ©, Lukas J. Furtak +30

The identification of sources driving cosmic reionization, a major phase transition from neutral Hydrogen to ionized plasma around 600-800 Myr after the Big Bang (Dayal et al. 2018…

HFF-DeepSpace Photometric Catalogs of the Twelve Hubble Frontier Fields, Clusters and Parallels: Photometry, Photometric Redshifts, and Stellar Masses

Heath Shipley, Daniel Lange-Vagle, Danilo Marchesini +14

We present Hubble multi-wavelength photometric catalogs, including (up to) 17 filters with the Advanced Camera for Surveys and Wide Field Camera 3 from the ultra-violet to near-inf…

Jekyll & Hyde: quiescence and extreme obscuration in a pair of massive galaxies 1.5 Gyr after the Big Bang

Corentin Schreiber, Ivo LabbÃ©, Karl Glazebrook +12

We obtained ALMA spectroscopy and imaging to investigate the origin of the unexpected sub-mm emission toward the most distant quiescent galaxy known to date, ZF-COSMOS-20115 at z=3…

Outflows in the Early Universe: Neutral gas Absorption in Galaxies at z > 3 from low-resolution JWST Spectroscopy

Matteo Sapori, Sirio Belli, Letizia Bugiani +14

Recent JWST/NIRSpec observations have shown that Na I D absorption tracing neutral gas outflows is widespread in massive galaxies at Cosmic Noon ( $z \sim 2$ - $3$ ), but their prevalenc…

The ALMA REBELS Survey: The Dust-obscured Cosmic Star Formation Rate Density at Redshift 7

Hiddo Algera, Hanae Inami, Pascal Oesch +21

Cosmic dust is an essential component shaping both the evolution of galaxies and their observational signatures. How quickly dust builds up in the early Universe remains an open qu…

astro-ph.CO2011

The Rest Frame UV to Optical Colors and SEDs of z~4-7 Galaxies

Valentino Gonzalez, Rychard Bouwens, Ivo Labbe +4

We use the ultra-deep HUDF09 and the deep ERS data from the HST WFC3/IR camera, along with the wide area Spitzer/IRAC data from GOODS-S to derive SEDs of star-forming galaxies from…

Anatomy of an ionized bubble: NIRCam grism spectroscopy of the $z = 6.6$ double-peaked Lyman- $I^\pm$ emitter COLA1 and its environment

Alberto Torralba-Torregrosa, Jorryt Matthee, Rohan P. Naidu +10

The increasingly neutral intergalactic gas at $z > 6$ impacts the Lyman- $I^\pm$ flux observed from galaxies. One luminous galaxy, COLA1, stands out because of its unique double-peaked L…

Water absorption confirms cool atmospheres in two little red dots

Bingjie Wang, Joel Leja, Ivo Labbe +35

Little red dots (LRDs) are an abundant population of compact high-redshift sources with red rest-frame optical continua, discovered by the James Webb Space Telescope (JWST). Their…

astro-ph.CO2023

UV Luminosity Density Results at z>8 from the First JWST/NIRCam Fields: Limitations of Early Data Sets and the Need for Spectroscopy

Rychard Bouwens, Garth Illingworth, Pascal Oesch +4

We have derived luminosity functions, and set constraints on the UV luminosity and SFR density from z~17 to z~8, using the three most-studied JWST/NIRCam data sets, the SMACS0723,…

The warm outer layer of a Little Red Dot as the source of [Fe II] and collisional Balmer lines with scattering wings

Alberto Torralba, Jorryt Matthee, Gabriele Pezzulli +22

The population of the Little Red Dots (LRDs) may represent a key phase of supermassive black hole (SMBH) growth. A cocoon of dense excited gas is emerging as key component to expla…

astro-ph.CO2013

Tracing the Mass Growth and Star Formation Rate Evolution of Massive Galaxies from z~6 to z~1 in the Hubble Ultra-Deep Field

Britt F. Lundgren, Pieter van Dokkum, Marijn Franx +8

We present an analysis of $\sim$ 1500 H160-selected photometric galaxies detected to a limiting magnitude of 27.8 in the HUDF, using imaging from the HST WFC3/IR camera in combinati…

astro-ph.CO2011

The UDF05 Follow-up of the Hubble Ultra Deep Field. III. The Luminosity Function at z~6

Jian Su, Massimo Stiavelli, Pascal Oesch +13

In this paper, we present a derivation of the rest-frame 1400A luminosity function (LF) at redshift six from a new application of the maximum likelihood method by exploring the fiv…

The Reionization Lensing Cluster Survey (RELICS) and the Brightest High-z Galaxies

Brett Salmon, Dan Coe, Larry Bradley +31

Massive foreground galaxy clusters magnify and distort the light of objects behind them, permitting a view into both the extremely distant and intrinsically faint galaxy population…

astro-ph.CO2011

The zCOSMOS-SINFONI Project I: Sample Selection and Natural-Seeing Observations

Chiara Mancini, Natascha Foerster Schreiber, Alvio Renzini +21

The zCOSMOS SINFONI project is aimed at studying the physical and kinematical properties of a sample of massive z~1.4-2.5 star-forming galaxies, through SINFONI near-IR integral fi…

An almost NIRCam-dark dusty star-forming galaxy at z=6.63

Longji Bing, Seb Oliver, Mengyuan Xiao +28

We present AC-2168, an almost NIRCam-dark, millimetre-bright galaxy in the COSMOS field. The source was identified blindly in ALMA Band-4 continuum data and remains undetected in t…

The rest-frame optical (900nm) galaxy luminosity function at z~4-7: abundance matching points to limited evolution in the Mstar/Mhalo ratio at z>4

Mauro Stefanon, Rychard J. Bouwens, Ivo LabbÃ© +4

We present the first determination of the galaxy luminosity function (LF) at z~4, 5, 6 and 7 in the rest-frame optical at lambda_rest~900 nm (z' band). The rest-frame optical light…

The ALMA Spectroscopic Survey in the HUDF: The Cosmic Dust and Gas Mass Densities in Galaxies up to $z \sim 3$

Benjamin Magnelli, Leindert Boogaard, Roberto Decarli +24

Using the deepest 1.2 mm continuum map to date in the Hubble Ultra Deep Field obtained as part of the ALMA Spectroscopic Survey (ASPECS) large program, we measure the cosmic densit…

The ALMA Spectroscopic Survey in the HUDF: Nature and physical properties of gas-mass selected galaxies using MUSE spectroscopy

Leindert A. Boogaard, Roberto Decarli, Jorge GonzÃ¡lez-LÃ³pez +31

We discuss the nature and physical properties of gas-mass selected galaxies in the ALMA spectroscopic survey (ASPECS) of the Hubble Ultra Deep Field (HUDF). We capitalize on the de…

The Brightest $z ≳ 8$ Galaxies over the COSMOS UltraVISTA Field

Mauro Stefanon, Ivo LabbÃ©, Rychard J. Bouwens +12

We present 16 new ultrabright $H_{A B} ≲ 25$ galaxy candidates at z~8 identified over the COSMOS/UltraVISTA field. The new search takes advantage of the deepest-available groun…

The Star Formation Burstiness and Ionizing Efficiency of Low-mass Galaxies

Hakim Atek, Lukas Furtak, Pascal Oesch +5

We investigate the burstiness of star formation and the ionizing efficiency of a large sample of galaxies at $0.7 < z < 1.5$ using HST grism spectroscopy and deep ultraviolet (UV)…

The Engine and its Flows: Little Red Dot spectra are shaped by the column densities of their gas envelopes

Jorryt Matthee, Alberto Torralba, Gabriele Pezzulli +23

JWST data have enabled the abundant identification of compact broad Balmer line sources nicknamed the Little Red Dots. While they share broad lines with active galactic nuclei, the…

HST imaging of the brightest z~8-9 galaxies from UltraVISTA: the extreme bright end of the UV luminosity function

Mauro Stefanon, Ivo LabbÃ©, Rychard J. Bouwens +13

We report on the discovery of three especially bright candidate $z_{p h o t} ≳ 8$ galaxies. Five sources were targeted for follow-up with HST/WFC3, selected from a larger sample…

astro-ph.GA2014

Dense cores in galaxies out to z=2.5 in SDSS, UltraVISTA, and the five 3D-HST/CANDELS fields

Pieter van Dokkum, Rachel Bezanson, Arjen van der Wel +15

The dense interiors of massive galaxies are among the most intriguing environments in the Universe. In this paper we ask when these dense cores were formed and determine how galaxi…

JWST COSMOS-3D: Spectroscopic Census and Luminosity Function of [O III] Emitters at 6.75<z<9.05 in COSMOS

Romain A. Meyer, Feige Wang, Koki Kakiichi +38

We present a catalogue of spectroscopically selected [OIII]+Hb emitters at 6.75<z<9.05 and the resulting [OIII] 5008 Ã Luminosity Function (LF) in the COSMOS field. We leverage the…

Probing patchy reionisation with JWST: IGM opacity constraints from the Lyman- $I^\pm$ forest of galaxies in legacy extragalactic fields

Romain A. Meyer, Guido Roberts-Borsani, Pascal Oesch +1

We present the first characterization of the Gunn-Peterson trough in high-redshift galaxies using public JWST NIRSpec spectroscopy. This enables us to derive the first galaxy-based…

The Hubble Legacy Fields (HLF-GOODS-S) v1.5 Data Products: Combining 2442 Orbits of GOODS-S/CDF-S Region ACS and WFC3/IR Images

Garth Illingworth, Daniel Magee, Rychard Bouwens +7

We have submitted to MAST the 1.5 version data release of the Hubble Legacy Fields (HLF) project covering a 25 x 25 arcmin area over the GOODS-S (ECDF-S) region from the HST archiv…

A GLIMPSE of the 99%: a census of the faintest galaxies during the epoch reionization and its implications for galaxy formation models

Hakim Atek, Iryna Chemerynska, Lukas J. Furtak +19

We present a comprehensive study of the galaxy UV luminosity function (UVLF) at $z = 6 - 9$ leveraging deep JWST observations from the GLIMPSE survey. Thanks to gravitational lensing,…

Characterization and modeling of contamination for Lyman break galaxy samples at high redshift

Benedetta Vulcani, Michele Trenti, Valentina Calvi +4

The selection of high redshift sources from broad-band photometry using the Lyman-break galaxy (LBG) technique is a well established methodology, but the characterization of its co…

The ALMA REBELS Survey: Efficient Ly $I^\pm$ Transmission of UV-Bright z $≃$ 7 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…

astro-ph.IM2020

Space Project for Astrophysical and Cosmological Exploration (SPACE), an ESA stand-alone mission and a possible contribution to the Origins Space Telescope

Denis Burgarella, Andrew Bunker, Rychard Bouwens +30

We propose a new mission called Space Project for Astrophysical and Cosmological Exploration (SPACE) as part on the ESA long term planning Voyage 2050 programme. SPACE will study g…

ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The Infrared Excess of UV-selected z=2-10 galaxies as a function of UV-continuum Slope and Stellar Mass

Rychard Bouwens, Manuel Aravena, Roberto Decarli +25

We make use of deep 1.2mm-continuum observations (12.7microJy/beam RMS) of a 1 arcmin^2 region in the Hubble Ultra Deep Field to probe dust-enshrouded star formation from 330 Lyman…

The Sizes of Candidate $z \sim 9 - 10$ Galaxies: confirmation of the bright CANDELS sample and relation with luminosity and mass

Benne W. Holwerda, Rychard Bouwens, Pascal Oesch +3

Recently, a small sample of six $z \sim 9 - 10$ candidates was discovered in CANDELS that are $\sim 10 - 20 \times$ more luminous than any of the previous $z \sim 9 - 10$ galaxies identified o…

astro-ph.CO2012

The Evolution of Mass-size Relation for Lyman Break Galaxies From z=1 to z=7

Moein Mosleh, Rik J. Williams, Marijn Franx +6

For the first time, we study the evolution of the stellar mass-size relation for star-forming galaxies from z ~ 4 to z ~ 7 from Hubble-WFC3/IR camera observations of the HUDF and E…

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 $z \sim 7 - 8$ observed as part of the Reionization Era Bright Emission Line Survey (REBELS) ALMA large program. T…

An Empirical Model for the Galaxy Luminosity and Star-Formation Rate Function at High Redshift

Natalie Mashian, Pascal Oesch, Abraham Loeb

Using the most recent measurements of the ultraviolet (UV) luminosity functions (LFs) and dust estimates of early galaxies, we derive updated dust-corrected star-formation rate fun…

Resolving stellar populations, star formation, and interstellar medium conditions with JWST in a large spiral galaxy at $z \approx 2$

Eleonora Parlanti, Giulia Tozzi, Natascha M. FÃ¶rster Schreiber +30

Cosmic noon represents the prime epoch of galaxy assembly, and a sweet spot for observations with the James Webb Telescope (JWST) and ground-based near-IR integral-field unit (IFU)…

The ALMA Spectroscopic Survey in the HUDF: Multi-band constraints on line luminosity functions and the cosmic density of molecular gas

Roberto Decarli, Manuel Aravena, Leindert Boogaard +20

We present a CO and atomic fine-structure line luminosity function analysis using the ALMA Spectroscopic Survey in the Hubble Ultra Deep Field (ASPECS). ASPECS consists of two spat…

Lyman-alpha emission at the end of reionization: line strengths and profiles from MMT and JWST observations at z~5-6

Gonzalo Prieto-Lyon, Charlotte A. Mason, Victoria Strait +8

With JWST, it is now possible to use Lyman-Alpha (Ly $I^\pm$ ) emission from galaxies beyond z>8 to trace neutral hydrogen in the intergalactic medium (IGM) as the Universe became reion…

GLACiAR, an open-source python tool for simulations of source recovery and completeness in galaxy surveys

Daniela Carrasco, Michele Trenti, Simon Mutch +1

The luminosity function is a fundamental observable for characterizing how galaxies form and evolve throughout the cosmic history. One key ingredient to derive this measurement fro…

Spectroscopic Constraints on UV Metal Line Emission at z~6-9: The Nature of Lyman-alpha Emitting Galaxies in the Reionization-Era

Ramesh Mainali, Adi Zitrin, Daniel P. Stark +6

Recent studies have revealed intense UV metal emission lines in a modest sample of z>7 Lyman-alpha emitters, indicating a hard ionizing spectrum is present. If such high ionization…

Early Science with the Large Millimeter Telescope: Detection of dust emission in multiple images of a normal galaxy at $z > 4$ lensed by a Frontier Fields cluster

Alexandra Pope, Alfredo Montana, Andrew Battisti +32

We directly detect dust emission in an optically-detected, multiply-imaged galaxy lensed by the Frontier Fields cluster MACSJ0717.5+3745. We detect two images of the same galaxy at…

astro-ph.CO2013

A Predicted New Population of UV-faint Galaxies at z>4

Stuart Wyithe, Abraham Loeb, Pascal Oesch

We show that a bursty model of high redshift star formation explains several puzzling observations of the high redshift galaxy population. We begin by pointing out that the observe…

The ALMA Spectroscopic Survey Large Program: The Infrared Excess of z=1.5-10 UV-selected Galaxies and the Implied High-Redshift Star Formation History

Rychard Bouwens, Jorge Gonzalez-Lopez, Manuel Aravena +22

We make use of sensitive (9.3 microJy/beam RMS) 1.2mm-continuum observations from the ASPECS ALMA large program of the Hubble Ultra Deep Field (HUDF) to probe dust-enshrouded star…

astro-ph.GA2023

JWST UNCOVER: Discovery of $z > 9$ Galaxy Candidates Behind the Lensing Cluster Abell 2744

Hakim Atek, Iryna Chemerynska, Bingjie Wang +19

We present the results of a search for high-redshift ( $z > 9$ ) galaxy candidates in the JWST UNCOVER survey, using deep NIRCam and NIRISS imaging in 7 bands over $\sim 45$ arcmin $^{2}$ …

astro-ph.CO2014

Observations of environmental quenching in groups in the 11 Gyr since z=2.5: different quenching for central and satellite galaxies

Tomer Tal, Avishai Dekel, Pascal Oesch +16

We present direct observational evidence for star formation quenching in galaxy groups in the redshift range 0<z<2.5. We utilize a large sample of nearly 6000 groups, selected by f…

The Evolution of the Baryons Associated with Galaxies Averaged over Cosmic Time and Space

Fabian Walter, Chris Carilli, Marcel Neeleman +30

We combine the recent determination of the evolution of the cosmic density of molecular gas (H_2) using deep, volumetric surveys, with previous estimates of the cosmic density of s…

A $^{3}$ COSMOS: Measuring the cosmic dust-attenuated star formation rate density at $4 < z < 5$

Benjamin Magnelli, Sylvia Adscheid, Tsan-Ming Wang +14

[Abridged] In recent years, conflicting results have provided an uncertain view of the dust-attenuated properties of $z > 4$ star-forming galaxies (SFGs). To solve this, we used the…

astro-ph.GA2021

Extending the evolution of the stellar mass-size relation at $z \leq 2$ to low stellar mass galaxies from HFF and CANDELS

Kalina V. Nedkova, Boris HÃ¤uÃler, Danilo Marchesini +23

We reliably extend the stellar mass-size relation over $0.2 \leq z \leq 2$ to low stellar mass galaxies by combining the depth of Hubble Frontier Fields (HFF) with the large volume c…

astro-ph.GA2023

UNCOVER: A NIRSpec Identification of a Broad Line AGN at z = 8.50

Vasily Kokorev, Seiji Fujimoto, Ivo Labbe +29

Deep observations with JWST have revealed an emerging population of red point-like sources that could provide a link between the postulated supermassive black hole seeds and observ…

The 3D-HST Survey: Hubble Space Telescope WFC3/G141 grism spectra, redshifts, and emission line measurements for $\sim 100, 000$ galaxies

Ivelina G. Momcheva, Gabriel B. Brammer, Pieter G. van Dokkum +27

We present reduced data and data products from the 3D-HST survey, a 248-orbit HST Treasury program. The survey obtained WFC3 G141 grism spectroscopy in four of the five CANDELS fie…

A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots

Rohan P. Naidu, Jorryt Matthee, Harley Katz +48

The physical processes that led to the formation of billion solar mass black holes within the first 700 million years of cosmic time remain a puzzle. Several theoretical scenarios…

Metallicity evolution of direct collapse black hole hosts: CR7 as a case study

Bhaskar Agarwal, Jarrett L. Johnson, Sadegh Khochfar +4

In this study we focus on the $z \sim 6.6$ Lyman- $I^\pm$ CR7 consisting of clump A that is host to a potential direct collapse black hole (DCBH), and two metal enriched star forming clu…

A Candidate $z \sim 10$ Galaxy Strongly Lensed into a Spatially Resolved Arc

Brett Salmon, Dan Coe, Larry Bradley +27

The most distant galaxies known are at z~10-11, observed 400-500 Myr after the Big Bang. The few z~10-11 candidates discovered to date have been exceptionally small- barely resolve…

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 ( $\geq 3.3 I ¨ $ ) at $\sim 88 I^¼ m$ and $158 I^¼ m$ out of 49 ultraviolet(UV)-bright galaxies ( $M_{UV} < - 21.3$ mag) at $z > 6.5$ , obser…

REBELS-25: Discovery of a dynamically cold disc galaxy at z = 7.31

Lucie E. Rowland, Jacqueline Hodge, Rychard Bouwens +21

We present high resolution ( $\sim 0.14$ " = 710 pc) ALMA [CII] 158 $I^¼$ m and dust continuum follow-up observations of REBELS-25, a [CII]-luminous ($L_{\mathrm{[CII]}}=(1.7\pm0.2)\time…

The ALMA Spectroscopic Survey in the HUDF: CO luminosity functions and the molecular gas content of galaxies through cosmic history

Roberto Decarli, Fabian Walter, Jorge GÃ³nzalez-LÃ³pez +34

We use the results from the ALMA large program ASPECS, the spectroscopic survey in the Hubble Ultra Deep Field (HUDF), to constrain CO luminosity functions of galaxies and the resu…

The MUSE Hubble Ultra Deep Field Survey XIV. The evolution of the Lya emitter fraction from z=3 to z=6

Haruka Kusakabe, Jeremy Blaizot, Thibault Garel +19

The Lya emitter (LAE) fraction, X_LAE, is a potentially powerful probe of the evolution of the intergalactic neutral hydrogen gas fraction. However, uncertainties in the measuremen…

astro-ph.CO2026

A JWST Paschen-alpha Calibration of the Radio Luminosity-Star Formation Rate Relation at z~1.3

Nick Seymour, Catherine Hale, Imogen Whittam +17

As radio emission from normal galaxies is a dust-free tracer of star formation, tracing the star formation history of the Universe is a key goal of the SKA and ngVLA. In order to i…

ALMA spectroscopic survey in the Hubble Ultra Deep Field: CO luminosity functions and the evolution of the cosmic density of molecular gas

Roberto Decarli, Fabian Walter, Manuel Aravena +37

In this paper we use ASPECS, the ALMA Spectroscopic Survey in the {\em Hubble} Ultra Deep Field (UDF) in band 3 and band 6, to place blind constraints on the CO luminosity function…

The Relation Between [OIII]/H $I^^{2}$ and Specific Star Formation Rate in Galaxies at $z \sim 2$

Claire Mackay Dickey, Pieter van Dokkum, Pascal Oesch +7

Recent surveys have identified a seemingly ubiquitous population of galaxies with elevated [OIII]/H $I^^{2}$ emission line ratios at $z > 1$ , though the nature of this phenomenon contin…

JWST's GLIMPSE: an overview of the deepest probe of early galaxy formation and cosmic reionization

Hakim Atek, John Chisholm, Vasily Kokorev +44

We present an overview of the JWST GLIMPSE program, highlighting its survey design, primary science goals, gravitational lensing models, and first results. GLIMPSE provides ultra-d…

IR SED and Dust Masses of Sub-solar Metallicity Galaxies at z~2.3

Irene Shivaei, GergÃ¶ Popping, George Rieke +12

We present results from ALMA 1.2mm continuum observations of a sample of 27 star-forming galaxies at z=2.1-2.5 from the MOSFIRE Deep Evolution Field (MOSDEF) survey. These galaxies…

Lyman-alpha and CIII] Emission in z=7-9 Galaxies: Accelerated Reionization Around Luminous Star Forming Systems?

Daniel P. Stark, Richard S. Ellis, Stephane Charlot +9

We discuss new Keck/MOSFIRE spectroscopic observations of four luminous galaxies at z~7-9 selected to have intense optical line emission by Roberts-Borsani et al. (2016). Previous…