Faculty

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Unit

Venue

Dale Kocevski

Colby College

Affiliations

Physics and Astronomy Department

Dale Kocevski is a Senior Professor at Colby College specializing in extragalactic astronomy and high-energy astrophysics. His research focuses on galaxy formation and evolution, particularly the identification and characterization of active galactic nuclei (AGN) and "little red dots" in the early universe. His recent work, utilizing JWST observations, explores ultrahigh-redshift dust-obscured galaxies, super-Eddington accretion in broad-line AGNs, and the evolution of galaxy morphology since cosmic dawn. He has published extensively in leading journals, including *Nature Astronomy* and *The Astrophysical Journal*, and leads international collaborations such as COSMOS-Web.

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Dale Kocevski

Colby College

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astronomy observational astronomy extragalactic astronomy astrophysics high-energy astrophysics galaxy formation and evolution physics high energy physics planetary sciences high energy density physics synchrotron radiation galaxy formation large scale structure stellar astrophysics galaxy clusters relativistic astrophysics active galactic nucleus experimental physics star formation lunar science atomic spectroscopy early universe astrophysical simulations detector physic theoretical physics astrophysical plasmas modern physics astronomical image analysis ceers key paper massive galaxies planetary change black holes general relativity high-energy cosmic ray astrostatistics gamma-ray bursts space weather agronomy x-ray spectroscopy astroinformatics stellar masses earth science acta astronautica gravitational waves quiescent galaxies compact quiescent galaxies agn host galaxies black hole dynamic stellar structure x-ray fluorescence alternative cosmology cosmic abundance galaxy structure candels multi-wavelength catalogs star formation rates host galaxies little red dots fermi-lat observations nuclear fusion scientific data photometry (optics) astrochronology near-infrared spectroscopy earth observation goods-south field broad-line agns big bang geometric topology mathematical sciences optical remote sensing astrochemistry bubble dynamics imaging spectroscopy benchmark studies group structure

Notable Scholarly Works

Notable Federal Grants

Collaborators

A Morphology Catalog of Galaxies in Ceers: Evolution in the Size and Color Gradients of Galaxies Since Cosmic Dawn. The Astrophysical Journal Letters (2026)

cosmic dawngalaxy formationphysicsmorphology catalogextragalactic astronomygalaxy formation and evolutionastronomycolor gradientshigh energy density physicslarge scale structureplanetary change

The Case for Super-Eddington Accretion in Jwst Broad-Line Active Galactic Nuclei During the First Billion Years. Nature Astronomy (2026)

physicsastrophysicsextragalactic astronomyastrophysical plasmashigh-energy astrophysicsastronomysuper-eddington accretionsupermassive black holeshigh energy density physicssynchrotron radiationactive galactic nucleusfirst billionhigh energy physics

Tracing the Agn–Merger Connection: Insights From Cosmological Simulations and Jwst Mock Observations. Monthly Notices of the Royal Astronomical Society (2026)

physicscosmologyextragalactic astronomytheoretical physicsgalaxy formation and evolutionastronomyagn–merger connectionalternative cosmologysynchrotron radiationlarge scale structureactive galactic nucleushigh energy physicsobservational cosmologyearly universecosmological simulations

Ultrahigh-Redshift or Closer-by, Dust-Obscured Galaxies?. Astronomy and Astrophysics (2026)

galaxy formationphysicsdust-obscured galaxiesextragalactic astronomyultra high-redshifthigh-energy astrophysicsastronomylarge scale structureobservational cosmologyearly universe

AGNBOOST: A Machine Learning Approach to Agn Identification With Jwst/Nircam+Miri Colors and Photometry. ArXiv.org (2025)

jwst/nircam+miri colorsoptical image recognitionpattern recognitionmachine learningdata scienceimage analysisagn identificationsystems biologymachine learning approachimage representationimage classification

A Search for Z = 5 H α and H β + [O III ] Dual-Line Emitting Galaxies in the Jwst Ceers Field: Implications for the Active Galactic Nucleus Abundance. The Astrophysical Journal (2025)

galaxy formationphysicsspace weathernuclear fusionextragalactic astronomyastrophysical plasmasgalaxy formation and evolutionhigh-energy astrophysicsastronomyatomic spectroscopyexperimental physicshigh energy density physicscosmic abundanceactive galactic nucleuslarge scale structurejwst ceers fieldinterstellar mediumgalactic center

Broad-Line Agns at 3.5 Z 6: The Black Hole Mass Function and a Connection With Little Red Dots. The Astrophysical Journal (2025)

broad-line agnsphysicsblack holesgravitational physicsgeneral relativitytheoretical physicslittle red dotsastronomysupermassive black holesactive galactic nucleusblack hole dynamichigh energy physicsgalactic center

Capers-Lrd-Z9: A Gas-Enshrouded Little Red Dot Hosting a Broad-Line Active Galactic Nucleus at Z = 9.288. The Astrophysical Journal Letters (2025)

galaxy formationphysicsastrophysicsextragalactic astronomyastrophysical plasmasgalaxy formation and evolutionhigh-energy astrophysicsastronomyhigh energy density physicslarge scale structureactive galactic nucleusgalaxy clusterscosmic abundancehigh energy physicsinterstellar mediumgalactic center

CEERS: Possibly Forging the First Dust Grains in the Universe. Springer Link (Chiba Institute of Technology) (2025)

physicscosmologyastrophysicsastronomycosmochemistryhigh energy density physicssynchrotron radiationprotoplanetary disksplanetary sciencesplanetary changefirst dust grainsearly universe

Cosmos-Web: The Overabundance and Physical Nature of “Little Red Dots”—Implications for Early Galaxy and Smbh Assembly. The Astrophysical Journal (2025)

galaxy formationphysicshigh energy physicssmbh assemblygalaxy formation and evolutionastrophysical simulationsastronomyacta astronauticalarge scale structurephysical natureplanetary changeearly galaxyearly universeglobular clusters

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Dale Kocevski

Colby College

Affiliations

Physics and Astronomy Department

Honors

Create free account to unlock more features

Experiences

Create free account to unlock more features

Education

Create free account to unlock more features

Dale Kocevski

Colby College

You can click a keyword to filter the displayed items

Notable Scholarly Works

Notable Federal Grants

Collaborators

A Morphology Catalog of Galaxies in Ceers: Evolution in the Size and Color Gradients of Galaxies Since Cosmic Dawn. The Astrophysical Journal Letters (2026)

cosmic dawngalaxy formationphysicsmorphology catalogextragalactic astronomygalaxy formation and evolutionastronomycolor gradientshigh energy density physicslarge scale structureplanetary change

The Case for Super-Eddington Accretion in Jwst Broad-Line Active Galactic Nuclei During the First Billion Years. Nature Astronomy (2026)

Tracing the Agn–Merger Connection: Insights From Cosmological Simulations and Jwst Mock Observations. Monthly Notices of the Royal Astronomical Society (2026)

Ultrahigh-Redshift or Closer-by, Dust-Obscured Galaxies?. Astronomy and Astrophysics (2026)

galaxy formationphysicsdust-obscured galaxiesextragalactic astronomyultra high-redshifthigh-energy astrophysicsastronomylarge scale structureobservational cosmologyearly universe

AGNBOOST: A Machine Learning Approach to Agn Identification With Jwst/Nircam+Miri Colors and Photometry. ArXiv.org (2025)

A Search for Z = 5 H α and H β + [O III ] Dual-Line Emitting Galaxies in the Jwst Ceers Field: Implications for the Active Galactic Nucleus Abundance. The Astrophysical Journal (2025)

Broad-Line Agns at 3.5 Z 6: The Black Hole Mass Function and a Connection With Little Red Dots. The Astrophysical Journal (2025)

Capers-Lrd-Z9: A Gas-Enshrouded Little Red Dot Hosting a Broad-Line Active Galactic Nucleus at Z = 9.288. The Astrophysical Journal Letters (2025)

CEERS: Possibly Forging the First Dust Grains in the Universe. Springer Link (Chiba Institute of Technology) (2025)

physicscosmologyastrophysicsastronomycosmochemistryhigh energy density physicssynchrotron radiationprotoplanetary disksplanetary sciencesplanetary changefirst dust grainsearly universe

Cosmos-Web: The Overabundance and Physical Nature of “Little Red Dots”—Implications for Early Galaxy and Smbh Assembly. The Astrophysical Journal (2025)

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