Faculty

Institution

Unit

Venue

Dan Grin

Haverford College

Affiliations

The Marian E. Koshland Integrated Natural Sciences Center

Department of Astronomy

Haverford College

Dan Grin is a Senior Professor of Physics at Haverford College. His research centers on observational cosmology, dark matter, and the cosmic microwave background (CMB), with a specific focus on ultralight axion and fuzzy dark matter models, as well as the early universe and high-energy physics. His recent work includes developing novel fluid approaches for modeling extreme axions, constraining fuzzy dark matter using Hubble Frontier Fields data, and forecasting CMB-S4 constraints on primordial non-Gaussianity via μ-distortion anisotropy. He also investigates the evolution of the fine-structure constant and cascading dark energy models. His publications appear in leading journals, including *Physical Review D*, *The Astrophysical Journal*, and the *Monthly Notices of the Royal Astronomical Society*.

Honors

Create free account to unlock more features

Experiences

Create free account to unlock more features

Education

Create free account to unlock more features

Dan Grin

Haverford College

You can click a keyword to filter the displayed items

physics astronomy cosmology dark matter particle physics observational cosmology cosmic microwave background planetary sciences high energy physics early universe modern physics experimental physics astroparticle physics dark energy synchrotron radiation theoretical physics high energy density physics astrophysics cosmic neutrino background primordial gravitational waves dark matter search applied physics large scale structure high-energy astrophysics acta astronautica high-energy cosmic ray general relativity particle cosmology project plan isocurvature perturbations compensated isocurvature perturbations forecasting constraints speech processing computational physics crystal research scientific data microwave technology atomic spectroscopy atmospheric measurement technique nature alternative cosmology neutrino astronomy atmospheric acoustic radiative transfer structure determination crystal structures experimental gravity einstein telescope nuclear decays specification (technical standard) quantum sensing optical metrology inflation (cosmology) modulation techniques deep space exploration space research cmb-s4 science case reference design cmb-s4 science book first edition ultralight axionlike fields cmb measurements telescope search ultralight axions massive neutrinos future cmb tests cosmological hydrogen recombination planck power spectra

Notable Scholarly Works

Notable Federal Grants

Collaborators

Accurate Method for Ultralight Axion Cmb and Matter Power Spectra. Physical review. D/Physical review. D. (2025)

Fuzzy Dark Matter Constraints From the Hubble Frontier Fields. Monthly Notices of the Royal Astronomical Society (2025)

dark matterdark energyastronomyphysicstheoretical physicsmodern physicscosmology

Cascading Dark Energy. The Astrophysical Journal (2024)

Cosmic Microwave Background Search for Fine-Structure Constant Evolution. Physical review. D/Physical review. D. (2024)

Extreme Axions Unveiled: A Novel Fluid Approach for Cosmological Modeling. Physical review. D/Physical review. D. (2024)

Using H I Observations of Low-Mass Galaxies to Test Ultralight Axion Dark Matter. Monthly Notices of the Royal Astronomical Society (2024)

dark matterextragalactic astronomyastronomyphysicshigh energy density physicsplanetary sciencesactive galactic nucleusgalaxy clustershigh energy physicsobservational cosmologyacta astronauticamodern physicsastroparticle physicsgalaxy formation and evolutionsynchrotron radiationatomic spectroscopyexperimental physics

Cmb-S4: Forecasting Constraints on $F_\Mathrm{Nl}$ Through $μ$-Distortion Anisotropy. arXiv (Cornell University) (2023)

Zegeye, DavidBianchini, FedericoBond, J. RichardChluba, JensCrawford, ThomasFabbian, GiulioGluscevic, VeraGrin, DanielHill, J. ColinMeerburg, P. DanielOrlando, GiorgioPartridge, BruceReichardt, Christian L.Remazeilles, MathieuScott, DouglasWollack, Edward J.Collaboration, The CMB-S4

forecasting constraintsforecastingapplied mathematicsparticle physics

Cmb-S4 Forecasts for Constraints on F Nl Through μ -Distortion Anisotropy. Physical review. D/Physical review. D. (2023)

David ZegeyeFederico BianchiniJ. Richard BondJens ChlubaThomas CrawfordGiulio FabbianVera GluscevicDaniel GrinJ. Colin HillP. Daniel MeerburgGiorgio OrlandoBruce PartridgeChristian L. ReichardtMathieu RemazeillesDouglas ScottEdward J. Wollack

forecastingaerospace engineering

Cmb-S4: Forecasting Constraints on Primordial Gravitational Waves. The Astrophysical Journal (2022)

Kevork AbazajianGraeme E. AddisonPeter AdsheadZeeshan AhmedDaniel AkeribAamir AliSteven W. AllenDavid AlonsoMarcelo AlvarezMustafa A. AminAdam AndersonKam S. ArnoldPeter AshtonCarlo BaccigalupiDebbie BardDenis BarkatsDarcy BarronPeter S. BarryJames G. BartlettRitoban Basu ThakurNicholas BattagliaRachel BeanChris BebekAmy N. BenderBradford A. BensonFederico BianchiniColin A. BischoffLindsey BleemJames J. BockSebastian BocquetKimberly K. BoddyJ. Richard BondJulian BorrillFrançois R. BouchetThejs BrinckmannMichael L. BrownSean BryanVictor BuzaKaren ByrumCarlos Hervias CaimapoErminia CalabreseVictoria CalafutRobert CaldwellJohn E. CarlstromJulien CarronThomas CecilAnthony ChallinorClarence L. ChangYuji ChinoneHsiao-Mei Sherry ChoAsantha CoorayWill CoultonThomas M. CrawfordAbigail CritesAri CukiermanFrancis-Yan Cyr-RacineTijmen de HaanJacques DelabrouilleMark DevlinEleonora Di ValentinoMarion DierickxMatt DobbsShannon DuffCora DvorkinJoseph EimerTucker ElleflotJosquin ErrardThomas Essinger-HilemanGiulio FabbianChang FengSimone FerraroJeffrey P. FilippiniRaphael FlaugerBrenna FlaugherAurelien A. FraisseAndrei FrolovNicholas GalitzkiPatricio A. GallardoSilvia GalliKen GangaMartina GerbinoVera GluscevicNeil Goeckner-WaldDaniel GreenDaniel GrinEvan GrohsRiccardo GualtieriJon E. GudmundssonIan GullettNikhel GuptaSalman HabibMark HalpernNils W. HalversonShaul HananyKathleen HarringtonMasaya HasegawaMatthew HasselfieldMasashi HazumiKatrin HeitmannShawn Henderson

primordial gravitational wavesearly universeastronomyphysicscmb measurementshigh energy physicsobservational cosmologycosmologymodern physicsforecasting constraintscosmic microwave background

Constraining Ultralight Axions With Galaxy Surveys. Journal of Cosmology and Astroparticle Physics (2022)

1
2
3
4
5
8
10 / page

Dan Grin

Haverford College

Affiliations

The Marian E. Koshland Integrated Natural Sciences Center

Department of Astronomy

Haverford College

Honors

Create free account to unlock more features

Experiences

Create free account to unlock more features

Education

Create free account to unlock more features

Dan Grin

Haverford College

You can click a keyword to filter the displayed items

Notable Scholarly Works

Notable Federal Grants

Collaborators

Accurate Method for Ultralight Axion Cmb and Matter Power Spectra. Physical review. D/Physical review. D. (2025)

Fuzzy Dark Matter Constraints From the Hubble Frontier Fields. Monthly Notices of the Royal Astronomical Society (2025)

dark matterdark energyastronomyphysicstheoretical physicsmodern physicscosmology

Cascading Dark Energy. The Astrophysical Journal (2024)

Cosmic Microwave Background Search for Fine-Structure Constant Evolution. Physical review. D/Physical review. D. (2024)

Extreme Axions Unveiled: A Novel Fluid Approach for Cosmological Modeling. Physical review. D/Physical review. D. (2024)

Using H I Observations of Low-Mass Galaxies to Test Ultralight Axion Dark Matter. Monthly Notices of the Royal Astronomical Society (2024)

Cmb-S4: Forecasting Constraints on $F_\Mathrm{Nl}$ Through $μ$-Distortion Anisotropy. arXiv (Cornell University) (2023)

forecasting constraintsforecastingapplied mathematicsparticle physics

Cmb-S4 Forecasts for Constraints on F Nl Through μ -Distortion Anisotropy. Physical review. D/Physical review. D. (2023)

forecastingaerospace engineering

Cmb-S4: Forecasting Constraints on Primordial Gravitational Waves. The Astrophysical Journal (2022)

primordial gravitational wavesearly universeastronomyphysicscmb measurementshigh energy physicsobservational cosmologycosmologymodern physicsforecasting constraintscosmic microwave background

Constraining Ultralight Axions With Galaxy Surveys. Journal of Cosmology and Astroparticle Physics (2022)

1
2
3
4
5
8
10 / page