The Danieli Research GroupTel Aviv University

The Danieli Research Group for
Galaxy Evolution, Dark Matter, and the
Low Surface Brightness Universe
at Tel Aviv University

The Hubble Ultra Deep Field · NASA/ESA/STScI/HST/HUDF Team · NASA/Goddard/LRO

Overview

The faintest galaxies in the nearby universe

Our research group explores the faintest and most elusive galaxies in the nearby universe — systems so diffuse and low-mass that they often escape traditional surveys.

By combining ultra-deep observations from ground- and space-based telescopes with creative, data-driven discovery techniques, we uncover hidden populations of dwarf and low-surface-brightness galaxies beyond the Milky Way.

These galaxies serve as powerful laboratories for understanding how galaxies form, how dark matter shapes structure on small scales, and how visible and invisible matter co-evolve across cosmic time.

Our big questions

What we're chasing

  • How common are low-mass and ultra-faint galaxies beyond the Local Group, and what is their true census in the nearby universe?
  • How does dark matter shape the structure and dynamics of the smallest galaxies?
  • What is the relationship between dark matter and visible matter in galaxies at the lowest masses?
  • Which physical processes govern the formation and evolution of low-mass galaxies?
  • What new astrophysical phenomena emerge when we push observations into the low-surface-brightness universe?

Funding

Our work is supported by

Israel Science Foundation European Research Council Azrieli Foundation United States–Israel Binational Science Foundation (NSF-BSF)

Research

What we do

Probing the low-surface-brightness sky

Most of what we know about galaxies comes from the bright end of the population — the systems that are easy to see. Our group works at the opposite limit: the diffuse, low-mass galaxies whose light is spread so thinly across the sky that they hide below the detection thresholds of conventional surveys.

We pursue them with ultra-deep imaging from instruments like the Dragonfly Telephoto Array, wide-field surveys such as Merian, and follow-up observations from space- and ground-based observatories. Alongside the observations, we develop data-driven detection methods designed to recognize faint, extended structure in very large datasets.

Because the lowest-mass galaxies are dominated by dark matter, every new system we find is also a small-scale test of cosmology — a probe of how dark matter behaves where its influence is strongest.

Coming soon

Research themes

We're building this section out — detailed pages on each research thread, with images and key results, are on the way.

Our Team

Dr. Shany Danieli

Shany Danieli, Ph.D.

Principal Investigator

Dr. Danieli is an Assistant Professor in the Physics and Astronomy School at Tel Aviv University, Israel. She obtained her PhD from Yale University under the supervision of Prof. Pieter van Dokkum, after which she was a NASA Hubble Fellow and a Carnegie-Princeton Fellow at Princeton University and the IAS.

Inbar Havilio

Inbar Havilio

PhD Student

Inbar Havilio is a PhD student supervised by Dr. Shany Danieli. Her research focuses on the mutual relationship between dwarf galaxies and dark matter haloes, using statistical methods applied to both observations and simulations. She completed her MSc at the Weizmann Institute under the supervision of Dr. Kfir Blum.

Goni Elbaz

Goni Elbaz

MSc Student

Goni Elbaz is a Master's student in the Physics and Astronomy School at Tel Aviv University. She obtained her Bachelor's degree from Ben-Gurion University of the Negev, Israel.

Daniel Pakula

Daniel Pakula

MSc Student

Daniel is a double major in Physics and East Asian Studies at Tel Aviv University. He studies low-surface-brightness galaxies and their implications for cold dark matter in the ΛCDM framework, developing automated detection systems for data from the Dragonfly telescope. Previously, he gained extensive experience in cybersecurity and vulnerability research. Alongside his physics studies, he focuses on East Asia and speaks Japanese.

You?

Join us

MSc Student · PhD Student

We're always looking for curious, motivated students who want to hunt for the galaxies nobody else can see. Get in touch to hear about open projects.

Publications

Publications

Publications

69 publications in total — 33 as first, second, or third author, and 36 additional co-authored papers.

Full library on ADS ↗

First, second, and third-author publications

Papers led or co-led by group members. Titles link to ADS.

2026

33. ELVES-Dwarf. I. Satellite Systems of Eight Isolated Dwarf Galaxies in the Local Volume

Li J., Greene J., Danieli S., Carlsten S., Geha M., Jiang F., Tanaka M.
The Astrophysical Journal, 1002, 75 (2026)
2026

32. The Merian Survey: A Statistical Census of Bright Satellites of Milky Way Analogs

Pan Y., Danieli S., Greene J., Li J., Leauthaud A., Kado-Fong E., Luo Y., Mintz A., Brooks A., Huang S., Peter A., Bhattacharyya J., et al.
The Astrophysical Journal, 1000, 119 (2026)
2026

31. A Possible “Too-many-satellites” Problem in the Isolated Dwarf Galaxy DDO 161

Li J., Greene J., Danieli S., Carlsten S., Geha M.
The Astrophysical Journal Letters, 998, L24 (2026)
2025

30. First Data Release of the Merian Survey: A Wide-field Imaging Survey of Dwarf Galaxies at z ~ 0.06─0.10

Danieli S., Kado-Fong E., Huang S., Luo Y., Li T., Kelvin L., Leauthaud A., Greene J., Mintz A., Lin X., Li J., Baldassare V., et al.
The Astrophysical Journal, 993, 110 (2025)
2024

29. Constrain the Dark-matter Distribution of Ultra-diffuse Galaxies with Globular-cluster Mass Segregation: A Case Study with NGC5846-UDG1

Liang J., Jiang F., Danieli S., Benson A., Hopkins P.
The Astrophysical Journal, 964, 53 (2024)
2023

28. Confirmation of an Anomalously Low Dark Matter Content for the Galaxy NGC 1052-DF4 from Deep, High-resolution Continuum Spectroscopy

Shen Z., van Dokkum P., Danieli S.
The Astrophysical Journal, 957, 6 (2023)
2023

27. ELVES. IV. The Satellite Stellar-to-halo Mass Relation Beyond the Milky Way

Danieli S., Greene J., Carlsten S., Jiang F., Beaton R., Goulding A.
The Astrophysical Journal, 956, 6 (2023)
2023

26. ELVES. III. Environmental Quenching by Milky Way-mass Hosts

Greene J., Danieli S., Carlsten S., Beaton R., Jiang F., Li J.
The Astrophysical Journal, 949, 94 (2023)
2023

25. Distinguishing Dark Matter Cusps from Cores Using Globular Clusters

Modak S., Danieli S., Greene J.
The Astrophysical Journal, 950, 178 (2023)
2022

24. ArtPop: A Stellar Population and Image Simulation Python Package

Greco J., Danieli S.
The Astrophysical Journal, 941, 26 (2022)
2022

23. Tidal Distortions in NGC1052-DF2 and NGC1052-DF4: Independent Evidence for a Lack of Dark Matter

Keim M., van Dokkum P., Danieli S., Lokhorst D., Li J., Shen Z., Abraham R., Chen S., Gilhuly C., Liu Q., Merritt A., Miller T., et al.
The Astrophysical Journal, 935, 160 (2022)
2022

22. Dynamical Friction in Globular Cluster-rich Ultra-diffuse Galaxies: The Case of NGC5846-UDG1

Bar N., Danieli S., Blum K.
The Astrophysical Journal Letters, 932, L10 (2022)
2022

21. Galaxies lacking dark matter produced by close encounters in a cosmological simulation

Moreno J., Danieli S., Bullock J., Feldmann R., Hopkins P., \ccatmabacak O., Gurvich A., Lazar A., Klein C., Hummels C., Hafen Z., Mercado F., et al.
Nature Astronomy, 6, 496-502 (2022)
2022

20. NGC 5846-UDG1: A Galaxy Formed Mostly by Star Formation in Massive, Extremely Dense Clumps of Gas

Danieli S., van Dokkum P., Trujillo-Gomez S., Kruijssen J., Romanowsky A., Carlsten S., Shen Z., Li J., Abraham R., Brodie J., Conroy C., Gannon J., et al.
The Astrophysical Journal Letters, 927, L28 (2022)
2021

19. A Recently Quenched Isolated Dwarf Galaxy Outside of the Local Group Environment

Polzin A., van Dokkum P., Danieli S., Greco J., Romanowsky A.
The Astrophysical Journal Letters, 914, L23 (2021)
2021

18. A Tip of the Red Giant Branch Distance of 22.1 ± 1.2 Mpc to the Dark Matter Deficient Galaxy NGC 1052-DF2 from 40 Orbits of Hubble Space Telescope Imaging

Shen Z., Danieli S., van Dokkum P., Abraham R., Brodie J., Conroy C., Dolphin A., Romanowsky A., Kruijssen J., Dutta Chowdhury D.
The Astrophysical Journal Letters, 914, L12 (2021)
2021

17. A Complex Luminosity Function for the Anomalous Globular Clusters in NGC 1052-DF2 and NGC 1052-DF4

Shen Z., van Dokkum P., Danieli S.
The Astrophysical Journal, 909, 179 (2021)
2021

16. The Dragonfly Wide Field Survey. II. Accurate Total Luminosities and Colors of Nearby Massive Galaxies and Implications for the Galaxy Stellar-mass Function

Miller T., van Dokkum P., Danieli S., Li J., Abraham R., Conroy C., Gilhuly C., Greco J., Liu Q., Lokhorst D., Merritt A.
The Astrophysical Journal, 909, 74 (2021)
2021

15. Measuring Distances to Low-luminosity Galaxies Using Surface Brightness Fluctuations

Greco J., van Dokkum P., Danieli S., Carlsten S., Conroy C.
The Astrophysical Journal, 908, 24 (2021)
2020

14. Multi-resolution Filtering: An Empirical Method for Isolating Faint, Extended Emission in Dragonfly Data and Other Low Resolution Images

van Dokkum P., Lokhorst D., Danieli S., Li J., Merritt A., Abraham R., Gilhuly C., Greco J., Liu Q.
PASP, 132, 074503 (2020)
2020

13. A Tip of the Red Giant Branch Distance to the Dark Matter Deficient Galaxy NGC 1052-DF4 from Deep Hubble Space Telescope Data

Danieli S., van Dokkum P., Abraham R., Conroy C., Dolphin A., Romanowsky A.
The Astrophysical Journal Letters, 895, L4 (2020)
2020

12. The Dragonfly Wide Field Survey. I. Telescope, Survey Design, and Data Characterization

Danieli S., Lokhorst D., Zhang J., Merritt A., van Dokkum P., Abraham R., Conroy C., Gilhuly C., Greco J., Janssens S., Li J., Liu Q., et al.
The Astrophysical Journal, 894, 119 (2020)
2019

11. Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. I. Observations, Kinematics, and Cold Dark Matter Halo Fits

van Dokkum P., Wasserman A., Danieli S., Abraham R., Brodie J., Conroy C., Forbes D., Martin C., Matuszewski M., Romanowsky A., Villaume A.
The Astrophysical Journal, 880, 91 (2019)
2019

10. Revisiting the Size-Luminosity Relation in the Era of Ultra Diffuse Galaxies

Danieli S., van Dokkum P.
The Astrophysical Journal, 875, 155 (2019)
2019

9. Still Missing Dark Matter: KCWI High-resolution Stellar Kinematics of NGC1052-DF2

Danieli S., van Dokkum P., Conroy C., Abraham R., Romanowsky A.
The Astrophysical Journal Letters, 874, L12 (2019)
2019

8. A Second Galaxy Missing Dark Matter in the NGC 1052 Group

van Dokkum P., Danieli S., Abraham R., Conroy C., Romanowsky A.
The Astrophysical Journal Letters, 874, L5 (2019)
2018

7. The Dragonfly Nearby Galaxies Survey. V. HST/ACS Observations of 23 Low Surface Brightness Objects in the Fields of NGC 1052, NGC 1084, M96, and NGC 4258

Cohen Y., van Dokkum P., Danieli S., Romanowsky A., Abraham R., Merritt A., Zhang J., Mowla L., Kruijssen J., Conroy C., Wasserman A.
The Astrophysical Journal, 868, 96 (2018)
2018

6. The Distance of the Dark Matter Deficient Galaxy NGC 1052-DF2

van Dokkum P., Danieli S., Cohen Y., Romanowsky A., Conroy C.
The Astrophysical Journal Letters, 864, L18 (2018)
2018

5. An Enigmatic Population of Luminous Globular Clusters in a Galaxy Lacking Dark Matter

van Dokkum P., Cohen Y., Danieli S., Kruijssen J., Romanowsky A., Merritt A., Abraham R., Brodie J., Conroy C., Lokhorst D., Mowla L., O'Sullivan E., et al.
The Astrophysical Journal Letters, 856, L30 (2018)
2018

4. Hunting Faint Dwarf Galaxies in the Field Using Integrated Light Surveys

Danieli S., van Dokkum P., Conroy C.
The Astrophysical Journal, 856, 69 (2018)
2018

3. A galaxy lacking dark matter

van Dokkum P., Danieli S., Cohen Y., Merritt A., Romanowsky A., Abraham R., Brodie J., Conroy C., Lokhorst D., Mowla L., O'Sullivan E., Zhang J.
Nature, 555, 629-632 (2018)
2017

2. The Dragonfly Nearby Galaxies Survey. III. The Luminosity Function of the M101 Group

Danieli S., van Dokkum P., Merritt A., Abraham R., Zhang J., Karachentsev I., Makarova L.
The Astrophysical Journal, 837, 136 (2017)
2016

1. The Dragonfly Nearby Galaxies Survey. II. Ultra-Diffuse Galaxies near the Elliptical Galaxy NGC 5485

Merritt A., van Dokkum P., Danieli S., Abraham R., Zhang J., Karachentsev I., Makarova L.
The Astrophysical Journal, 833, 168 (2016)

Additional publications

Co-authored papers.

2026

36. ELVES-Field: Isolated Dwarf Galaxy Quenched Fractions Rise below M* ≍ 107 M⊙

Carlsten S., Li J., Greene J., Drlica-Wagner A., Danieli S.
The Astrophysical Journal Letters, 1001, L42 (2026)
2026

35. A Sample of Nearby Isolated Dwarf Galaxies: A First Look at the Mass Function of Field Dwarfs

Carlsten S., Li J., Greene J., Drlica-Wagner A., Danieli S.
The Astrophysical Journal, 1001, 244 (2026)
2026

34. A Third Galaxy Missing Dark Matter along a Trail of Galaxies in the NGC 1052 Field

Keim M., van Dokkum P., Shen Z., Danieli S., Pasha I.
arXiv:2603.15860 (2026)
2026

33. JWST Confirmation of a Runaway Supermassive Black Hole via Its Supersonic Bow Shock

van Dokkum P., Jennings C., Pasha I., Conroy C., Kaul I., Abraham R., Danieli S., Romanowsky A., Tremblay G.
The Astrophysical Journal Letters, 998, L27 (2026)
2025

32. Kinematic Confirmation of a Remarkable Linear Trail of Galaxies in the NGC 1052 Field, Consistent with Formation in a High-speed Bullet Dwarf Collision

Keim M., van Dokkum P., Shen Z., Souchereau H., Pasha I., Danieli S., Abraham R., Romanowsky A., Tang Y.
The Astrophysical Journal, 988, 165 (2025)
2025

31. Candidate Dark Galaxy-2: Validation and Analysis of an Almost Dark Galaxy in the Perseus Cluster

Li D., Liu Q., Eadie G., Abraham R., Marleau F., Harris W., van Dokkum P., Romanowsky A., Danieli S., Brown P., Stringer A.
The Astrophysical Journal Letters, 986, L18 (2025)
2025

30. Investigating the Ultra-diffuse Galaxy NGC5846_UDG1 through the Kinematics of its Rich Globular Cluster System

Haacke L., Forbes D., Gannon J., Danieli S., Brodie J., Pfeffer J., Romanowsky A., van Dokkum P., Janssens S., Buzzo M., Shen Z.
Monthly Notices of the Royal Astronomical Society, 539, 674-689 (2025)
2025

29. Discovery of Two Ultra-diffuse Galaxies with Unusually Bright Globular Cluster Luminosity Functions via a Mark-dependently Thinned Point Process (MATHPOP)

Li D., Eadie G., Brown P., Harris W., Abraham R., van Dokkum P., Janssens S., Berek S., Danieli S., Romanowsky A., Speagle J.
The Astrophysical Journal, 984, 147 (2025)
2025

28. An Unexplained Origin for the Unusual Globular Cluster System in the Ultradiffuse Galaxy FCC 224

Tang Y., Romanowsky A., Gannon J., Janssens S., Brodie J., Bundy K., Buzzo M., Cabrera E., Danieli S., Ferr\'e-Mateu A., Forbes D., van Dokkum P.
The Astrophysical Journal, 982, 1 (2025)
2025

27. Fuzzy Galaxies or Cirrus? Decomposition of Galactic Cirrus in Deep Wide-field Images

Liu Q., Abraham R., Martin P., Bowman W., Dokkum P., Danieli S., Patel E., Janssens S., Shen Z., Chen S., Karunakaran A., Keim M., et al.
The Astrophysical Journal, 979, 175 (2025)
2025

26. Testing the Bullet Dwarf Collision Scenario in the NGC 1052 Group through Morphologies and Stellar Populations

Tang Y., Romanowsky A., van Dokkum P., Jarrett T., Bundy K., Buzzo M., Danieli S., Gannon J., Keim M., Laine S., Shen Z.
The Astrophysical Journal, 978, 21 (2025)
2024

25. Hedgehog: An Isolated Quiescent Dwarf Galaxy at 2.4 Mpc

Li J., Greene J., Carlsten S., Danieli S.
The Astrophysical Journal Letters, 975, L23 (2024)
2024

24. A Nonparametric Morphological Analysis of Halpha Emission in Bright Dwarfs Using the Merian Survey

Mintz A., Greene J., Kado-Fong E., Danieli S., Li J., Luo Y., Leauthaud A., Baldassare V., Huang S., Peter A., Bhattacharyya J., Li M., et al.
The Astrophysical Journal, 974, 273 (2024)
2024

23. Analysis of galaxies at the extremes: a kinematic analysis of the Virgo cluster dwarfs VCC 9 and VCC 1448 using the Keck cosmic web imager

Gannon J., Forbes D., Romanowsky A., Brodie J., Haacke L., Ferr\'e-Mateu A., Danieli S., van Dokkum P., Buzzo M., Couch W., Shen Z.
Monthly Notices of the Royal Astronomical Society, 531, 1789-1804 (2024)
2024

22. The Merian survey: design, construction, and characterization of a filter set optimized to find dwarf galaxies and measure their dark matter halo properties with weak lensing

Luo Y., Leauthaud A., Greene J., Huang S., Kado-Fong E., Danieli S., Li T., Li J., Blanco D., Wasleske E., Wick J., Mintz A., et al.
Monthly Notices of the Royal Astronomical Society, 530, 4988-5005 (2024)
2023

21. Beyond Ultra-diffuse Galaxies. II. Environmental Quenching of Mass-Size Outliers among the Satellites of Milky Way Analogs

Li J., Greene J., Greco J., Beaton R., Danieli S., Goulding A., Huang S., Kado-Fong E.
The Astrophysical Journal, 955, 2 (2023)
2023

20. Beyond Ultra-diffuse Galaxies. I. Mass-Size Outliers among the Satellites of Milky Way Analogs

Li J., Greene J., Greco J., Huang S., Melchior P., Beaton R., Casey K., Danieli S., Goulding A., Joseph R., Kado-Fong E., Kim J., et al.
The Astrophysical Journal, 955, 1 (2023)
2023

19. A Candidate Runaway Supermassive Black Hole Identified by Shocks and Star Formation in its Wake

van Dokkum P., Pasha I., Buzzo M., LaMassa S., Shen Z., Keim M., Abraham R., Conroy C., Danieli S., Mitra K., Nagai D., Natarajan P., et al.
The Astrophysical Journal Letters, 946, L50 (2023)
2022

18. Monochromatic Globular Clusters as a Critical Test of Formation Models for the Dark Matter-deficient Galaxies NGC 1052-DF2 and NGC 1052-DF4

van Dokkum P., Shen Z., Romanowsky A., Abraham R., Conroy C., Danieli S., Chowdhury D., Keim M., Kruijssen J., Leja J., Trujillo-Gomez S.
The Astrophysical Journal Letters, 940, L9 (2022)
2022

17. Reaching for the Edge I: probing the outskirts of massive galaxies with HSC, DECaLS, SDSS, and Dragonfly

Li J., Huang S., Leauthaud A., Moustakas J., Danieli S., Greene J., Abraham R., Ardila F., Kado-Fong E., Lokhorst D., Lupton R., Price P.
Monthly Notices of the Royal Astronomical Society, 515, 5335-5357 (2022)
2022

16. Light from the Darkness: Detecting Ultra-diffuse Galaxies in the Perseus Cluster through Over-densities of Globular Clusters with a Log-Gaussian Cox Process

Li D., Eadie G., Abraham R., Brown P., Harris W., Janssens S., Romanowsky A., van Dokkum P., Danieli S.
The Astrophysical Journal, 935, 3 (2022)
2022

15. The Nature of Low-surface-brightness Galaxies in the Hyper Suprime-Cam Survey

Greene J., Greco J., Goulding A., Huang S., Kado-Fong E., Danieli S., Li J., Kim J., Komiyama Y., Leauthaud A., MacArthur L., Sif\'on C.
The Astrophysical Journal, 933, 150 (2022)
2022

14. The Exploration of Local VolumE Satellites (ELVES) Survey: A Nearly Volume-limited Sample of Nearby Dwarf Satellite Systems

Carlsten S., Greene J., Beaton R., Danieli S., Greco J.
The Astrophysical Journal, 933, 47 (2022)
2022

13. Stellar Halos from the The Dragonfly Edge-on Galaxies Survey

Gilhuly C., Merritt A., Abraham R., Danieli S., Lokhorst D., Liu Q., van Dokkum P., Conroy C., Greco J.
The Astrophysical Journal, 932, 44 (2022)
2022

12. A trail of dark-matter-free galaxies from a bullet-dwarf collision

van Dokkum P., Shen Z., Keim M., Trujillo-Gomez S., Danieli S., Dutta Chowdhury D., Abraham R., Conroy C., Kruijssen J., Nagai D., Romanowsky A.
Nature, 605, 435-439 (2022)
2022

11. A Giant Shell of Ionized Gas Discovered near M82 with the Dragonfly Spectral Line Mapper Pathfinder

Lokhorst D., Abraham R., Pasha I., van Dokkum P., Chen S., Miller T., Danieli S., Greco J., Zhang J., Merritt A., Conroy C.
The Astrophysical Journal, 927, 136 (2022)
2022

10. A Method to Characterize the Wide-angle Point-Spread Function of Astronomical Images

Liu Q., Abraham R., Gilhuly C., van Dokkum P., Martin P., Li J., Greco J., Lokhorst D., Chen S., Danieli S., Keim M., Merritt A., et al.
The Astrophysical Journal, 925, 219 (2022)
2022

9. Spatially Resolved Stellar Spectroscopy of the Ultra-diffuse Galaxy Dragonfly 44. III. Evidence for an Unexpected Star Formation History under Conventional Galaxy Evolution Processes

Villaume A., Romanowsky A., Brodie J., van Dokkum P., Conroy C., Forbes D., Danieli S., Martin C., Matuszewski M.
The Astrophysical Journal, 924, 32 (2022)
2021

8. A Nascent Tidal Dwarf Galaxy Forming within the Northern H I Streamer of M82

Pasha I., Lokhorst D., van Dokkum P., Chen S., Abraham R., Greco J., Danieli S., Miller T., Lippitt E., Polzin A., Shen Z., Keim M., et al.
The Astrophysical Journal Letters, 923, L21 (2021)
2021

7. A Search for Wandering Black Holes in the Milky Way with Gaia and DECaLS

Greene J., Lancaster L., Ting Y., Koposov S., Danieli S., Huang S., Jiang F., Greco J., Strader J.
The Astrophysical Journal, 917, 17 (2021)
2020

6. The Dragonfly Edge-on Galaxies Survey: Shaping the Outer disk of NGC 4565 via Accretion

Gilhuly C., Hendel D., Merritt A., Abraham R., Danieli S., Lokhorst D., Liu Q., van Dokkum P., Conroy C., Greco J.
The Astrophysical Journal, 897, 108 (2020)
2019

5. Spatially Resolved Stellar Kinematics of the Ultra-diffuse Galaxy Dragonfly 44. II. Constraints on Fuzzy Dark Matter

Wasserman A., van Dokkum P., Romanowsky A., Brodie J., Danieli S., Forbes D., Abraham R., Martin C., Matuszewski M., Villaume A., Tamanas J., Profumo S.
The Astrophysical Journal, 885, 155 (2019)
2019

4. Dragonfly Imaging of the Galaxy NGC 5907: A Different View of the Iconic Stellar Stream

van Dokkum P., Gilhuly C., Bonaca A., Merritt A., Danieli S., Lokhorst D., Abraham R., Conroy C., Greco J.
The Astrophysical Journal Letters, 883, L32 (2019)
2018

3. A Deficit of Dark Matter from Jeans Modeling of the Ultra-diffuse Galaxy NGC 1052-DF2

Wasserman A., Romanowsky A., Brodie J., van Dokkum P., Conroy C., Abraham R., Cohen Y., Danieli S.
The Astrophysical Journal Letters, 863, L15 (2018)
2017

2. Extensive Globular Cluster Systems Associated with Ultra Diffuse Galaxies in the Coma Cluster

van Dokkum P., Abraham R., Romanowsky A., Brodie J., Conroy C., Danieli S., Lokhorst D., Merritt A., Mowla L., Zhang J.
The Astrophysical Journal Letters, 844, L11 (2017)
2016

1. A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra-diffuse Galaxy Dragonfly 44

van Dokkum P., Abraham R., Brodie J., Conroy C., Danieli S., Merritt A., Mowla L., Romanowsky A., Zhang J.
The Astrophysical Journal Letters, 828, L6 (2016)

News & Updates

Featured

Daniel Pakula
May 26, 2026 · Tel Aviv University News

Uncovering Hidden Galaxies

Tel Aviv University featured our group's Daniel Pakula and his work developing an automated system for detecting faint dwarf galaxies with the Dragonfly telescope — a system that has already identified galaxies that previous surveys appear to have missed, helping to test the ΛCDM cosmological model. The article also has some great advice for undergraduates who want to get into research early.

Read the full article on the TAU website ↗
June 2026

New group website is live

Welcome to the new home of the Danieli Research Group — research themes, the team, publications, and news, all in one place.