Nicholas S. Martis

0000-0003-3243-9969

astro-ph.GAastro-ph.COastro-ph.IMastro-ph.EPastro-ph.HEastro-ph.SR

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

61 papers in the corpus · 2016–2026

A Systematic Assessment of Total Stellar Mass Measurements with Spatially Resolved Photometry and Medium Bands at 1 < z < 9: The Impact of Mass-to-Light Variations and Outshining2609.35996v2 · Naadiyah Jagga, Adam Muzzin, Visal Sok et al.2026 · 0 citationsarXiv

Early steps in the hierarchical assembly of a Milky Way-mass galaxy 1 Gyr after the Big Bang2609.19687v1 · Yoshihisa Asada, Marcin Sawicki, Guillaume Desprez et al.2026 · 0 citationsarXiv

A New Window on the H{\alpha} Luminosity Function and Star Formation Rate Density from 1.2 < z < 6.6 from JWST Medium-Band Photometry2608.08203v1 · Nicholas S. Martis, Chris Willott, Gregor Rihtarsic et al.2026 · 0 citationsarXiv

VENUS: an ultra-faint galaxy hosting the metal-poor type II supernova at

z=5.13

Witnessing the initial metal enrichment with extremely frequent core-collapse supernovae?2607.14355v1 · Yoshihisa Asada, Seiji Fujimoto, Joseph F. V. Allingham et al.2026 · 0 citationsarXiv

A massive barred spiral galaxy at z = 5.102 discovered by JWST2606.25022v1 · Xiaohan Wang, Fengwu Sun, Yoshihisa Asada et al.2026 · 0 citationsarXiv

Resolved Ages and Stellar Metallicities in Progenitors of Milky Way Analogs: A Closer Look at their Star Formation Histories since

z=5

2606.21651v2 · Vivian Yun Yan Tan, Adam Muzzin, Naadiyah Jagga et al.2026 · 0 citationsarXiv

CANUCS/Technicolor Data Release 2: A Catalogue of Galaxy Structural Parameters in up to 29 HST+JWST bands and a Multi-Wavelength Exploration of the Galaxy Size-Mass Relation at

0.6 < z \leq 4

2606.13781v2 · Maya Merchant, Lamiya A. Mowla, Georgios E. Magdis et al.2026 · 0 citationsarXiv

A Population of Red Galaxies with Very Strong Emission Lines at

z > 5

Revealed by the NIRCam Medium Bands: ''Classic'' LRDs, Dusty Star-Forming Galaxies, and a Missing Population of LRDs2606.06585v1 · Sunna Withers, Adam Muzzin, Swara Ravindranath et al.2026 · 0 citationsarXiv

Metal-Poor Gas Accretion Drives Giant Clump Formation at 0.6 < z < 2.62606.05284v1 · Visal Sok, Adam Muzzin, Ben Forrest et al.2026 · 0 citationsarXiv

Toward Unbreaking the Universe: MINERVA Measurements of Color Gradients in Massive Quiescent Galaxies Can Help Ease Too-Early Star Formation Tensions2606.02698v3 · Sam E. Cutler, Luke Robbins, Danilo Marchesini et al.2026 · 0 citationsThe Astrophysical Journal Letters Volume 1008 (2026) L11

Two Exciting High-redshift Galaxy Candidates Turn Out to Be Two Exciting Ultra-cool Brown Dwarfs2604.23668v2 · Marusa Bradac, Chris Willott, Yoshihisa Asada et al.2026 · 0 citationsarXiv

UV slopes of Starforming Galaxies in Strong Lensing fields at the Epoch of Reionization with JWST2602.17499v2 · Giordano Felicioni, Marusa Bradac, Yoshihisa Asada et al.2026 · 0 citationsA&A, 714, A220 (2026)

VENUS: Strong-lensing model of MACS J1931.8-2635 -- revealing the farthest multiply imaged supernova2602.14074v2 · Joseph F. V. Allingham, Adi Zitrin, Vasily Kokorev et al.2026 · 1 citationApJ 1005 215 (2026)

Mapping dark matter in the Bullet Cluster using JWST imaging and spectroscopy2601.22245v2 · Gregor Rihtarsic, Marusa Bradac, Guillaume Desprez et al.2026 · 6 citationsA&A 710, A207 (2026)

VENUS: Two Faint Little Red Dots Separated by

\sim70\,\mathrm{pc}

Hidden in a Single Lensed Galaxy at

z\sim7

2601.06015v1 · Hiroto Yanagisawa, Masami Ouchi, Miriam Golubchik et al.2026 · 2 citationsarXiv

Resolving dust and Ly{\alpha} emission in a lensed galaxy at the epoch of reionization with JWST/CANUCS2512.13778v3 · V. Markov, M. Bradac, V. Estrada-Carpenter et al.2025 · 1 citationA&A 708, A236 (2026)

Little red dot variability over a century reveals black hole envelope via a giant Einstein cross2512.05180v1 · Zijian Zhang, Mingyu Li, Masamune Oguri et al.2025 · 2 citationsarXiv

An Ancient Descendant of the First Galaxies2512.03154v2 · Jacqueline Antwi-Danso, Adam Muzzin, Luke Robbins et al.2025 · 0 citationsarXiv

Extreme properties of a compact and massive accreting black hole host in the first 500 Myr.41257816 · Tripodi, Roberta, Martis, Nicholas, Markov, Vladan et al.2025 · 22 citationsNature communications. 2025;16(1):9830

The rise and fall of Little Red Dots could be driven by the environment2510.06408v2 · Rosa M. M'erida, Gaia Gaspar, Yoshihisa Asada et al.2025 · 1 citationarXiv

Probing the Star Formation Main Sequence down to 10

^{7} M_\odot

1 < z < 9

2509.22871v2 · Rosa M. M'erida, Marcin Sawicki, Kartheik G. Iyer et al.2025 · 7 citationsarXiv

Star Formation under a Cosmic Microscope: Highly magnified z = 11 galaxy behind the Bullet Cluster2509.20446v2 · Marusa Bradac (1, Jon Judez, Chris Willott et al.2025 · 9 citationsarXiv

JWST Photometry of Globular Cluster Populations in MACS0417.5-11542509.14473v1 · William E. Harris, Marta Reina-Campos, Kaitlyn E. Keatley et al.2025 · 3 citationsarXiv

Metal-Poor Star-Forming Clumps in Cosmic Noon Galaxies: Evidence for Gas Inflow and Chemical Dilution Using JWST NIRISS2508.00985v1 · Vicente Estrada-Carpenter, Marcin Sawicki, Roberto Abraham et al.2025 · 8 citationsarXiv

Earliest Galaxy Evolution in the CANUCS+Technicolor fields: Galaxy Properties at

z\sim10-16

seen with the Full NIRCam Medium and Broad Band Filters2507.03124v2 · Yoshihisa Asada, Chris Willott, Adam Muzzin et al.2025 · 0 citationsarXiv

CANUCS/Technicolor Data Release 1: Imaging, Photometry, Slit Spectroscopy, and Stellar Population Parameters2506.21685v1 · Ghassan T. E. Sarrouh, Yoshihisa Asada, Nicholas S. Martis et al.2025 · 22 citationsarXiv

Unveiling the trends between dust attenuation and galaxy properties at z ~ 2 - 12 with the James Webb Space Telescope2504.12378v2 · V. Markov, S. Gallerani, A. Pallottini et al.2025 · 7 citationsA&A 702, A33 (2025)

CANUCS/Technicolor: JWST Medium Band Photometry Finds Half of the Star Formation at

z>7.5

is Obscured2503.01579v3 · Nicholas Martis, Sunna Withers, Giordano Felicioni et al.2025 · 3 citationsarXiv

In Search of the First Stars: An Ultra-Compact and Very Low Metallicity Lyman-

\alpha

Emitter Deep Within the Epoch of Reionization2502.07733v2 · Chris J. Willott, Yoshihisa Asada, Kartheik G. Iyer et al.2025 · 1 citationarXiv

Possible environmental quenching in an interacting little red dot pair at

z\sim7

2501.17925v2 · Rosa M. M'erida, Gaia Gaspar, Marcin Sawicki et al.2025 · 12 citationsA&A 698, A317 (2025)

Resolved mass assembly and star formation in Milky Way Progenitors since

z = 5

from JWST/CANUCS: From clumps and mergers to well-ordered disks2412.07829v2 · Vivian Yun Yan Tan, Adam Muzzin, Ghassan T. E. Sarrouh et al.2024 · 10 citationsarXiv

Red, hot, and very metal poor: extreme properties of a massive accreting black hole in the first 500 Myr2412.04983v1 · Roberta Tripodi, Nicholas Martis, Vladan Markov et al.2024 · 7 citationsarXiv

Formation of a low-mass galaxy from star clusters in a 600-million-year-old Universe.39663487 · Mowla, Lamiya, Iyer, Kartheik, Asada, Yoshihisa et al.2024 · 82 citationsNature. 2024;636(8042):332-336

Improving photometric redshifts of Epoch of Reionization galaxies: a new empirical transmission curve with neutral hydrogen damping wing Ly

\alpha

absorption2410.21543v2 · Yoshihisa Asada, Guillaume Desprez, Chris J. Willott et al.2024 · 30 citationsarXiv

Detailed Study of Stars and Gas in a z = 8.3 Massive Merger with Extreme Dust Conditions2408.12310v2 · Anishya Harshan, Roberta Tripodi, Nicholas S. Martis et al.2024 · 11 citationsApJL 977 L36 (2024)

CANUCS: UV and Ionising Properties of Dwarf Star Forming Galaxies at z = 5 to 72406.17128v1 · Anishya Harshan, Marusa Bradac, Roberto Abraham et al.2024 · 0 citationsarXiv

When, Where, and How Star Formation Happens in a Galaxy Pair at Cosmic Noon Using CANUCS JWST/NIRISS Grism Spectroscopy2406.15551v1 · Vicente Estrada-Carpenter, Marcin Sawicki, Gabe Brammer et al.2024 · 13 citationsarXiv

Bulge+disc decomposition of HFF and CANDELS galaxies: UVJ diagrams and stellar mass-size relations of galaxy components at

0.2 \leq z \leq 1.5

2406.14613v1 · Kalina V. Nedkova, Boris Hau\ssler, Danilo Marchesini et al.2024 · 1 citationarXiv

CANUCS: Constraining the MACS J0416.1-2403 Strong Lensing Model with JWST NIRISS, NIRSpec and NIRCam2406.10332v2 · Gregor Rihtarsic, Marusa Bradac, Guillaume Desprez et al.2024 · 18 citationsA&A 696, A15 (2025)

CANUCS: An Updated Mass and Magnification Model of Abell 370 with JWST2403.07062v1 · Rachel Gledhill, Victoria Strait, Guillaume Desprez et al.2024 · 0 citationsarXiv

The Firefly Sparkle: The Earliest Stages of the Assembly of A Milky Way-type Galaxy in a 600 Myr Old Universe2402.08696v1 · Lamiya Mowla, Kartheik Iyer, Yoshihisa Asada et al.2024 · 14 citationsarXiv

Exposing Line Emission: A First Look At The Systematic Differences of Measuring Stellar Masses With JWST NIRCam Medium Versus Wide Band Photometry2401.08781v1 · Ghassan T. Sarrouh, Adam Muzzin, Kartheik G. Iyer et al.2024 · 0 citationsarXiv

Modelling and Subtracting Diffuse Cluster Light in JWST Images: A Relation between the Spatial Distribution of Globular Clusters, Dwarf Galaxies, and Intracluster Light in the Lensing Cluster SMACS 07232401.01945v1 · Nicholas S. Martis, Ghassan T. E. Sarrouh, Chris J. Willott et al.2024 · 2 citationsarXiv

A Steep Decline in the Galaxy Space Density Beyond Redshift 9 in the CANUCS UV Luminosity Function2311.12234v2 · Chris J. Willott, Guillaume Desprez, Yoshihisa Asada et al.2023 · 60 citationsarXiv

\Lambda

CDM not dead yet: massive high-z Balmer break galaxies are less common than previously reported2310.03063v3 · Guillaume Desprez, Nicholas S. Martis, Yoshihisa Asada et al.2023 · 47 citationsarXiv

Bursty star formation and galaxy-galaxy interactions in low-mass galaxies 1 Gyr after the Big Bang2310.02314v2 · Yoshihisa Asada, Marcin Sawicki, Roberto Abraham et al.2023 · 64 citationsarXiv

Star Formation at the Epoch of Reionization with CANUCS: The ages of stellar populations in MACS1149-JD12308.13288v1 · Marusa Bradac, Victoria Strait, Lamiya Mowla et al.2023 · 20 citationsarXiv

An extremely metal poor star complex in the reionization era: Approaching Population III stars with JWST2305.14413v1 · E. Vanzella, F. Loiacono, P. Bergamini et al.2023 · 77 citationsA&A 678, A173 (2023)

Spectroscopy from Photometry: A Population of Extreme Emission Line Galaxies at

1.7 \lesssim z \lesssim 6.7

Selected with JWST Medium Band Filters2304.11181v1 · Sunna Withers, Adam Muzzin, Swara Ravindranath et al.2023 · 2 citationsarXiv

A First Look at Spatially Resolved Balmer Decrements at

1.0<z<2.4

from JWST NIRISS Slitless Spectroscopy2303.17624v1 · Jasleen Matharu, Adam Muzzin, Ghassan Sarrouh et al.2023 · 32 citationsarXiv

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