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JH

Jakob M. Helton

0000-0003-4337-6211
astro-ph.GAastro-ph.COastro-ph.IMastro-ph.SRastro-ph.HEEarly universeGalaxies and clustersgalaxy evolutionhigh-redshift galaxiesJames Webb Space Telescope

On Valency

published · living versions
W_unu28bt7·v1 · currentpublished
Why a Multi-Cycle Treasury Program is Essential to Maximize JWST's Scientific Contributions to Galaxy Formation
with Genesis Community, Alice Shapley, Steven L. Finkelstein, Rachel S. Somerville +416
1 version

Preprints & journals

101 papers in the corpus · 2021–2026
PRISMS/U13151. A Glimpse into the Earliest Phases of Galaxy Formation through an Ultra-Faint System ≈\approx 500 Myr after the Big Bang2610.26560v1 · Pierluigi Rinaldi, Javier 'Alvarez-M'arquez, Alejandro Crespo G'omez et al.2026 · 0 citationsarXiv
Discovery of the Lyman-α\alpha Forest in a Star-Forming Galaxy at z≈7.57z \approx 7.57: Implications for the Timing and Topology of Cosmic Reionization2609.38080v2 · Jakob M. Helton, Joris Witstok, Marta Laska et al.2026 · 0 citationsarXiv
An Archival Calibration of JWST/MIRI Prism Wide-Field Slitless Spectroscopy: Methodology, Performance, and a Mid-Infrared Spectral Atlas of Galaxies at z=0−4z=0-4 in the GOODS-N/S Fields2609.20935v1 · Fengwu Sun, Javier 'Alvarez-M'arquez, Eiichi Egami et al.2026 · 0 citationsarXiv
JADES: Dynamical Measurements of Dark Matter Halo Masses at z≈7z \approx 7 Using Galaxy Pairs2609.17756v1 · Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson et al.2026 · 0 citationsarXiv
PRISMS. GHZ1. A standard tale of galaxy evolution with atypical ionizing conditions at z=9.878z=9.8782609.14574v1 · Borja P'erez-D'iaz, Marco Castellano, Javier 'Alvarez-M'arquez et al.2026 · 0 citationsarXiv
A Spectral Framework for Testing the Quasi-Star Hypothesis in Little Red Dots I: Weighing LRDs by Their Super-Eddington Luminosity Ratios---No Signs of Overmassive Black Holes2609.09265v2 · Olivia Curtis, Nikko J. Cleri, Jakob M. Helton et al.2026 · 0 citationsarXiv
Low Lyα\alpha Visibility in Galaxy Overdensities: Reionization Topology and Neutral-Fraction Ceilings from DIVER over 4.8<z<114.8<z<112608.19311v1 · Yongda Zhu, Xiaohui Fan, Laura C. Keating et al.2026 · 0 citationsarXiv
JWST/NIRSpec Spectra for Three Ultracool Brown Dwarfs Detected in Extragalactic Surveys: Further Evidence for Phosphine Absorption2608.14786v1 · Kevin N. Hainline, Samuel A. Beiler, Adam J. Burgasser et al.2026 · 0 citationsarXiv
The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. V. When Galaxies Glow with Industry2608.12458v1 · Olivia Curtis, Aidan J. Rowland, Jason T. Wright et al.2026 · 0 citationsarXiv
A Compact Proto-group at z∼5z \sim 5: A Massive Galaxy Caught in Formation2607.11182v1 · Ronaldo Laishram, Yusei Koyama, Fengwu Sun et al.2026 · 1 citationarXiv
RUBIES: The Evolution of the Ionization Parameter from 0 < z < 92605.30410v3 · Nikko J. Cleri, Zach J. Lewis, Joel Leja et al.2026 · 0 citationsarXiv
Too many protoclusters? Reconciling the overabundance of cluster progenitors within the first billion years of the Universe2605.28930v1 · Callum Witten, Jake S. Bennett, Pascal A. Oesch et al.2026 · 0 citationsarXiv
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: stellar population catalogue for galaxies in GOODS-N and GOODS-S2605.21599v1 · Qiao Duan, Sandro Tacchella, Benjamin D. Johnson et al.2026 · 1 citationarXiv
A Census of Na D-traced neutral ISM and outflows at 0.6<z<40.6<z<42604.18522v2 · Yang Sun, Zhiyuan Ji, Francesco D'Eugenio et al.2026 · 1 citationarXiv
Intense and extended CIII] emission suggests a strong outflow in JADES-GS-z14-02604.11899v1 · Stefano Carniani, Peter Jakobsen, Giacomo Venturi et al.2026 · 0 citationsarXiv
The Way We Tally Becomes the Tale: the Impact of Selection Strategies on the Inferred Evolution of Little Red Dots Across Cosmic Time2604.07138v2 · Pierluigi Rinaldi, Kevin Hainline, Francesco D'Eugenio et al.2026 · 0 citationsarXiv
Calibrating Photometric Mid-Infrared Star Formation Rates for JWST2604.01326v2 · Stacey Alberts, George H. Rieke, Irene Shivaei et al.2026 · 0 citationsarXiv
The search for Population III: Confirmation of a HeII emitter with no metal lines at z=10.62603.20362v4 · Roberto Maiolino, Hannah Ubler, Michele Perna et al.2026 · 2 citationsarXiv
An OASIS of Lyman-α\alpha within a neutral intergalactic desert: reaffirmed line and blue continuum reveal efficient ionising agents at z=13z = 132603.18775v1 · Joris Witstok, Stefano Carniani, Peter Jakobsen et al.2026 · 1 citationarXiv
Out of oxygen: Extremely metal-poor galaxy candidates identified at 2.5<z<6.52.5 < z < 6.5 with deep JADES medium-band imaging2603.15761v2 · James A. A. Trussler, Daniel J. Eisenstein, Andrew J. Bunker et al.2026 · 1 citationMon Not R Astron Soc (2026)
Water absorption confirms cool atmospheres in two little red dots2602.06024v1 · Bingjie Wang, Joel Leja, Ivo Labbe et al.2026 · 0 citationsarXiv
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: NIRCam Imaging in GOODS-S and GOODS-N2601.15954v1 · Benjamin D. Johnson, Brant E. Robertson, Daniel J. Eisenstein et al.2026 · 4 citationsarXiv
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: MIRI Coordinated Parallels in GOODS-S and GOODS-N2601.15955v1 · Stacey Alberts, Daniel J. Eisenstein, Andrew J. Bunker et al.2026 · 0 citationsarXiv
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometric Catalog2601.15956v1 · Brant E. Robertson, Benjamin D. Johnson, Sandro Tacchella et al.2026 · 5 citationsarXiv
JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometrically Selected Galaxy Candidates at z > 82601.15959v2 · Kevin N. Hainline, Daniel J. Eisenstein, Lily Whitler et al.2026 · 1 citationarXiv
JADES: A Prominent Galaxy Overdensity Candidate within the First 500 Myr2601.15960v2 · Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson et al.2026 · 1 citationarXiv
JADES: Discovery of Large Reservoirs of Small Dust Grains in the Circumgalactic Medium of Massive Galaxies at z∼3.5z\sim3.5 through Deep JWST/NIRCam Imaging and Grism Spectroscopy2601.15961v1 · Fengwu Sun, Daniel J. Eisenstein, Francesco D'Eugenio et al.2026 · 2 citationsarXiv
Ionizing Photon Production Efficiencies and Chemical Abundances at Cosmic Dawn Revealed by Ultra-Deep Rest-Frame Optical Spectroscopy of JADES-GS-z14-02512.19695v1 · Jakob M. Helton, Jane E. Morrison, Kevin N. Hainline et al.2025 · 0 citationsarXiv
JADES: Low Surface Brightness Galaxies at 0.4 < z < 0.8 in GOODS-S2511.17738v2 · Tristen Shields, Marcia Rieke, Kevin Hainline et al.2025 · 2 citationsarXiv
JADES Dark Horse: demonstrating high-multiplex observations with JWST/NIRSpec dense-shutter spectroscopy in the JADES Origins Field2510.11626v2 · Francesco D'Eugenio, Erica J. Nelson, Daniel J. Eisenstein et al.2025 · 4 citationsMon Not R Astron Soc (2026)
JADES: An Abundance of Ultra-Distant T- and Y-Dwarfs in Deep Extragalactic Data2510.00111v2 · Kevin N. Hainline, Jakob M. Helton, Brittany E. Miles et al.2025 · 0 citationsarXiv
JADES: The Star Formation and Dust Attenuation Properties of Galaxies at 3<z<72510.00235v1 · Charity Woodrum, Irene Shivaei, Joris Witstok et al.2025 · 1 citationarXiv
Quasar Radiative Feedback May Suppress Galaxy Growth on Intergalactic Scales at z=6.3z = 6.32509.00153v2 · Yongda Zhu, Eiichi Egami, Xiaohui Fan et al.2025 · 2 citationsarXiv
SMILES Data Release II: Probing Galaxy Evolution during Cosmic Noon and Beyond with NIRSpec Medium-Resolution Spectra2508.12599v3 · Yongda Zhu, Nina Bonaventura, Yang Sun et al.2025 · 4 citationsarXiv
Bursting at the seams: the star-forming main sequence and its scatter at z=3-9 using NIRCam photometry from JADES2508.04410v2 · C. Simmonds, S. Tacchella, W. McClymont et al.2025 · 34 citationsarXiv
JADES-GS-z14-1: A Compact, Faint Galaxy at z≈14z\approx14 with Weak Metal Lines from Extremely Deep JWST MIRI, NIRCam, and NIRSpec Observations2507.22858v2 · Zihao Wu, Daniel J. Eisenstein, Benjamin D. Johnson et al.2025 · 0 citationsarXiv
On the origins of oxygen: ALMA and JWST characterise the multi-phase, metal-enriched, star-bursting medium within a 'normal' z>11z > 11 galaxy2507.22888v4 · Joris Witstok, Renske Smit, William M. Baker et al.2025 · 6 citationsarXiv
The Stellar Populations and Rest-Frame Colors of Star-Forming Galaxies at z≈8z \approx 8: Exploring the Impact of Filter Choice and Star Formation History Assumption with JADES2506.02099v1 · Jakob M. Helton, Stacey Alberts, George H. Rieke et al.2025 · 1 citationarXiv
Abundant Population of Broad Hα\alpha Emitters in the GOODS-N Field Revealed by CONGRESS, FRESCO, and JADES2505.02895v2 · Junyu Zhang, Eiichi Egami, Fengwu Sun et al.2025 · 0 citationsarXiv
The Large-scale Environments of Low-luminosity AGNs at 3.9<z<63.9 < z < 6 and Implications for Their Host Dark Matter Halos from a Complete NIRCam Grism Redshift Survey2505.02896v2 · Xiaojing Lin, Xiaohui Fan, Fengwu Sun et al.2025 · 11 citationsarXiv
The Luminosity Function and Clustering of Hα\alpha Emitting Galaxies at z≈4−6z\approx4-6 from a Complete NIRCam Grism Redshift Survey2504.08028v2 · Xiaojing Lin, Eiichi Egami, Fengwu Sun et al.2025 · 1 citationarXiv
The Importance of Dust Distribution in Ionizing-photon Escape: NIRCam and MIRI Imaging of a Lyman Continuum-emitting Galaxy at z ~ 3.82504.01067v2 · Zhiyuan Ji, Stacey Alberts, Yongda Zhu et al.2025 · 7 citationsarXiv
The dawn of disks: unveiling the turbulent ionised gas kinematics of the galaxy population at z∼4−6z\sim4-6 with JWST/NIRCam grism spectroscopy2503.21863v1 · A. Lola Danhaive, Sandro Tacchella, Hannah Ubler et al.2025 · 29 citationsMon Not R Astron Soc (2025) 3249-3302
Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES): Early Data Release of Deep JWST/NIRCam Images and Spectra in MACS J0416 Parallel Field2503.15587v1 · Fengwu Sun, Yoshinobu Fudamoto, Xiaojing Lin et al.2025 · 3 citationsarXiv
JADES and SAPPHIRES: Galaxy Metamorphosis Amidst a Huge, Luminous Emission-line Region2503.15590v2 · Francesco D'Eugenio, Jakob M. Helton, Kevin Hainline et al.2025 · 6 citationsarXiv
SAPPHIRES: A Galaxy Over-Density in the Heart of Cosmic Reionization at z=8.47z=8.472503.15597v1 · Yoshinobu Fudamoto, Jakob M. Helton, Xiaojing Lin et al.2025 · 4 citationsarXiv
Witnessing the onset of reionization through Lyman-α emission at redshift 13.40140594 · Witstok, Joris, Jakobsen, Peter, Maiolino, Roberto et al.2025 · 70 citationsNature. 2025;639(8056):897-901
Detection of the 2175Å UV Bump at z>7: Evidence for Rapid Dust Evolution in a Merging Reionisation-Era Galaxy2502.21119v3 · Katherine Ormerod, Joris Witstok, Renske Smit et al.2025 · 10 citationsMon Not R Astron Soc (2025) 1136-1154
The z≳9z \gtrsim 9 galaxy UV luminosity function from the JWST Advanced Deep Extragalactic Survey: insights into early galaxy evolution and reionization2501.00984v3 · Lily Whitler, Daniel P. Stark, Michael W. Topping et al.2025 · 5 citationsarXiv
Photometric detection at 7.7 μm of a galaxy beyond redshift 14 with JWST/MIRI.40417328 · Helton, Jakob M, Rieke, George H, Alberts, Stacey et al.2025 · 39 citationsNature astronomy. 2025;9(5):729-740
Career total: 150 works. 101 are in this corpus.Showing the 50 most recent.

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