IJ
Ignas Juodžbalis
astro-ph.GAastro-ph.COastro-ph.HEastro-ph.IMastro-ph.SRgr-qc
On Valency
published · living versionsW_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
W_vjn46yac·v1published
Preprints & journals
54 papers in the corpus · 2022–2026Discovery of the Lyman- Forest in a Star-Forming Galaxy at : Implications for the Timing and Topology of Cosmic Reionization2609.38080v2 · Jakob M. Helton, Joris Witstok, Marta Laska et al.2026 · 0 citationsarXiv
Gone with the wind? Potential gas inflow in the broad-line region of a QSO at traced by time-varying Balmer absorption2609.25224v1 · Xihan Ji, Dominic J. Walton, Francesco D'Eugenio et al.2026 · 0 citationsarXiv
The Roman eXtreme Deep Field (RXDF)2609.08145v1 · Haojing Yan, Anton M. Koekemoer, Yue Shen et al.2026 · 0 citationsarXiv
A Dusty Quenching-candidate AGN host at z=5.7: massive quiescent galaxies may quench already during the dust-obscured phase2609.07825v1 · Francesco D'Eugenio, Matilde Brazzini, Roberto Maiolino et al.2026 · 0 citationsarXiv
Misaligned or chaotic? A strong break of axial symmetry in the local LRD J1025 revealed with VLT/FORS2 spectropolarimetry2607.28715v1 · Francesco D'Eugenio, Gabriele Pezzulli, Roberto Maiolino et al.2026 · 0 citationsarXiv
A quasar hatching from a buried red phase at z = 3.72607.22966v1 · Zheng Ma, Yongda Zhu, Zhiyuan Ji et al.2026 · 0 citationsarXiv
An (in)complete NIRSpec census of Balmer absorption in Type 1 AGN -- radiation-driven outflows in little red dots, quasars and variable stars2607.19057v1 · Ignas Juodzbalis, Xihan Ji, Francesco D'Eugenio et al.2026 · 0 citationsarXiv
BlackTHUNDER Reveals a Massive Filament around a Compact AGN at 2607.05523v1 · Giulia Tozzi, Hannah Ubler, Eleonora Parlanti et al.2026 · 1 citationarXiv
No evolution in the number density of little red dots from cosmic dawn to cosmic noon2606.30253v1 · Federica Loiacono, Roberto Gilli, Marco Mignoli et al.2026 · 0 citationsarXiv
Little Red and Blue Dots: AGN-excited narrow lines, Lyman- emission, and resemblance to standard quasars2606.21614v1 · Sophia Geris, Roberto Maiolino, Xihan Ji et al.2026 · 0 citationsarXiv
JADES: the mass-metallicity relation at . New calibrations, extremely metal-poor galaxies, and chemical diversity2606.11345v1 · Yuki Isobe, Mirko Curti, Roberto Maiolino et al.2026 · 2 citationsarXiv
A Steep-Extinction Quasi-stellar Object at z=4.6: JWST Evidence for Abundant Small Dust Grains2606.02685v2 · Mingyu Li, Zheng Cai, Roberto Maiolino et al.2026 · 0 citationsMingyu Li et al 2026, ApJL, 1008, L22
A direct black-hole mass measurement in a little red dot at high redshift.42203931 · Juodžbalis, Ignas, Marconcini, Cosimo, D'Eugenio, Francesco et al.2026 · 19 citationsNature. 2026;653(8116):1017-1021
The Cliff: A Metal-Poor Little Red Dot Hosting an Overmassive Black Hole at 2604.09177v1 · Lucy R. Ivey, Francesco D'Eugenio, Roberto Maiolino et al.2026 · 2 citationsMon Not R Astron Soc (2026)
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
Holes in the BH? AGN signatures in the FUV spectrum of a black-hole dominated Little Red Dot at 2604.03370v1 · Xihan Ji, Gabriele Pezzulli, Francesco D'Eugenio et al.2026 · 1 citationarXiv
Little Red and Blue Dots: simply stratified Broad Line Regions2603.22277v2 · J. Scholtz, F. D'Eugenio, R. Maiolino et al.2026 · 1 citationarXiv
The Little Blue and Red Dots Rosetta Stones: Non-Gaussian broad lines, hot dust, and X-ray weakness2601.22214v1 · M. Brazzini, F. D'Eugenio, R. Maiolino et al.2026 · 3 citationsarXiv
Undermassive Hosts of $z = 4-6 $ AGN from JWST/NIRCam Image Decomposition with CONGRESS, FRESCO, and JADES2601.15962v2 · Zheng Ma, Eichi Egami, Yongda Zhu et al.2026 · 0 citationsarXiv
Mergers lighting the early Universe: modest star formation enhancement without evidence for AGN or Ly triggering2510.14743v2 · D'avid Pusk'as, Sandro Tacchella, Charlotte Simmonds et al.2025 · 1 citationMNRAS, 552, Issue 1, stag1698 (2026)
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)
JWST-discovered AGN: evidence for heavy obscuration in the type-2 sample from the first stacked X-ray detection2510.00112v1 · Andrea Comastri, Giorgio Lanzuisi, Fabio Vito et al.2025 · 4 citationsarXiv
BlackTHUNDER: Evidence of three massive black holes in a z~5 galaxy2509.21575v2 · Hannah Ubler, Giovanni Mazzolari, Roberto Maiolino et al.2025 · 5 citationsarXiv
BlackTHUNDER: Shedding light on a dormant and extreme little red dot at z=8.502509.20455v2 · Gareth C. Jones, Hannah Ubler, Roberto Maiolino et al.2025 · 9 citationsarXiv
JADES: the chemical enrichment pattern of distant galaxies -- enhancement, silicon depletion, and iron enhancement2509.18055v2 · Yuki Isobe, Roberto Maiolino, Xihan Ji et al.2025 · 2 citationsarXiv
The possible accretion discs of GN-z11 at redshift z = 10.6, MoM-z14 at z = 14.44 and other high redshift objects2509.05459v2 · A. C. Fabian, J. Jiang, W.M. Baker et al.2025 · 0 citationsarXiv
Lord of LRDs: Insights into a "Little Red Dot" with a low-ionization spectrum at z = 0.12507.23774v4 · Xihan Ji, Francesco D'Eugenio, Ignas Juodzbalis et al.2025 · 16 citationsarXiv
Ruling out dominant electron scattering in Little Red Dots' Rosetta Stone using multiple hydrogen lines2507.08929v1 · Matilde Brazzini, Francesco D'Eugenio, Roberto Maiolino et al.2025 · 15 citationsMon Not R Astron Soc Lett (2025) L167-L173
JADES reveals a large population of low mass black holes at high redshift2506.22147v1 · Sophia Geris, Roberto Maiolino, Yuki Isobe et al.2025 · 17 citationsMon Not R Astron Soc (2025)
JADES and BlackTHUNDER: rest-frame Balmer-line absorption and the local environment in a Little Red Dot at z = 52506.14870v2 · Francesco D'Eugenio, Ignas Juodzbalis, Xihan Ji et al.2025 · 22 citationsarXiv
A big red dot at cosmic noon2506.12141v2 · Federica Loiacono, Roberto Gilli, Marco Mignoli et al.2025 · 11 citationsA&A 703, A36 (2025)
A black hole in a near-pristine galaxy 700 million years after the Big Bang2505.22567v6 · Roberto Maiolino, Hannah Uebler, Francesco D'Eugenio et al.2025 · 28 citationsMon Not R Astron Soc (2026)
JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST2504.03551v2 · Ignas Juodzbalis, Roberto Maiolino, William M. Baker et al.2025 · 43 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
BlackTHUNDER strikes twice: rest-frame Balmer-line absorption and high Eddington accretion rate in a Little Red Dot at 2503.11752v2 · Francesco D'Eugenio, Roberto Maiolino, Michele Perna et al.2025 · 9 citationsarXiv
JADES: Nitrogen Enhancement in High-Redshift Broad-Line Active Galactic Nuclei2502.12091v2 · Yuki Isobe, Roberto Maiolino, Francesco D'Eugenio et al.2025 · 27 citationsarXiv
BlackTHUNDER -- A non-stellar Balmer break in a black hole-dominated little red dot at 2501.13082v2 · Xihan Ji, Roberto Maiolino, Hannah Ubler et al.2025 · 61 citationsarXiv
New Methods of Identifying AGN in the Early Universe using Spectroscopy and Photometry in the JWST Era2501.09585v1 · Flor Arevalo Gonzalez, Titanilla Braun, James Trussler et al.2025 · 7 citationsMon Not R Astron Soc (2025) 2737-2757
Episodic super-Eddington accretion as a clue to Overmassive Black Holes in the early Universe2412.14248v2 · Alessandro Trinca, Rosa Valiante, Raffaella Schneider et al.2024 · 11 citationsMon Not R Astron Soc (2026)
The radio properties of the JWST-discovered AGN2412.04224v2 · G. Mazzolari, R. Gilli, R. Maiolino et al.2024 · 22 citationsarXiv
A dormant overmassive black hole in the early Universe.39695212 · Juodžbalis, Ignas, Maiolino, Roberto, Baker, William M et al.2024 · 104 citationsNature. 2024;636(8043):594-597
An Investigation Into The Selection and Colors of Little Red Dots and Active Galactic Nuclei2410.00100v2 · Kevin N. Hainline, Roberto Maiolino, Ignas Juodzbalis et al.2024 · 48 citationsarXiv
EPOCHS I. The Discovery and Star Forming Properties of Galaxies in the Epoch of Reionization at with PEARLS and Public JWST data2407.14973v1 · Christopher J. Conselice, Nathan Adams, Thomas Harvey et al.2024 · 27 citationsarXiv
JADES -- The Rosetta Stone of JWST-discovered AGN: deciphering the intriguing nature of early AGN2407.08643v2 · Ignas Juodzbalis, Xihan Ji, Roberto Maiolino et al.2024 · 82 citationsarXiv
JADES: Spectroscopic Confirmation and Proper Motion for a T-Dwarf at 2 Kiloparsecs2407.08781v2 · Kevin N. Hainline, Francesco D'Eugenio, Fengwu Sun et al.2024 · 0 citationsarXiv
JWST meets Chandra: a large population of Compton thick, feedback-free, and intrinsically X-ray weak AGN, with a sprinkle of SNe2405.00504v2 · Roberto Maiolino, Guido Risaliti, Matilde Signorini et al.2024 · 149 citationsarXiv
The Host Galaxy of a Dormant, Overmassive Black Hole at May Be Restarting Star Formation2404.11643v1 · Fabio Pacucci, Abraham Loeb, Ignas Juodzbalis2024 · 5 citationsRes. Notes AAS, 2024, 8 105
EPOCHS III: Unbiased UV continuum slopes at 6.5<z<13 from combined PEARLS GTO and public JWST NIRCam imaging2404.10751v1 · Duncan Austin, Christopher J. Conselice, Nathan J. Adams et al.2024 · 22 citationsarXiv
A Promising New Dark Matter Candidate, and Implications for the Search for Extraterrestrial Intelligence (SETI)2404.00465v1 · A. Prillfool, A. A. Stoffers, I. Juodzbalis et al.2024 · 0 citationsarXiv
EPOCHS IV: SED Modelling Assumptions and their impact on the Stellar Mass Function at 6.5 < z < 13.5 using PEARLS and public JWST observations2403.03908v3 · Thomas Harvey, Christopher J. Conselice, Nathan J. Adams et al.2024 · 70 citationsApJ 978 89 (2025)
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