14 papers
The Extended Globular Cluster System of the archetypal "failed galaxy" Dragonfly-44 from deep white-light Hubble Space Telescope imaging
Maria Luisa Buzzo, Pieter van Dokkum, Roberto Abraham +2
Deep Hubble imaging reveals that the ultra-diffuse galaxy Dragonfly-44 hosts about 78 globular clusters, confirming its extremely high dark‑matter content and supporting its classi…
A Third Galaxy Missing Dark Matter along a Trail of Galaxies in the NGC 1052 Field
Michael A. Keim, Pieter van Dokkum, Zili Shen +2
While most dwarf galaxies are strongly dark matter dominated, two remarkable objects in the NGC 1052 field, DF2 and DF4, appear to lack dark matter. DF2 and DF4 were recently found…
ELVES-Field: Isolated Dwarf Galaxy Quenched Fractions Rise Below
Scott Carlsten, Jiaxuan Li, Jenny Greene +2
We use a new sample of low-mass ( ) isolated galaxies from the Exploration of Local VolumE Survey - Field (ELVES-Field) to examine the star formation propertie…
A Sample of Nearby Isolated Dwarf Galaxies: A First Look at the Mass Function of Field Dwarfs
Scott Carlsten, Jiaxuan Li, Jenny Greene +2
We present the results of the Exploration of Local VolumE Survey - Field (ELVES-Field), a survey of the dwarf galaxies in the Local Volume (LV; Mpc) over roughly squ…
A Possible "Too-Many-Satellites" Problem in the Isolated Dwarf Galaxy DDO 161
Jiaxuan Li, Jenny E. Greene, Shany Danieli +2
The abundance of satellite galaxies provides a direct test of CDM and galaxy formation physics on small scales. While satellites of Milky Way-mass galaxies are well studied, th…
JWST Confirmation of a Runaway Supermassive Black Hole via its Supersonic Bow Shock
Pieter van Dokkum, Connor Jennings, Imad Pasha +6
We present JWST/NIRSpec IFU observations of a candidate runaway supermassive black hole at the tip of a 62 kpc-long linear feature at z=0.96. The JWST data show a sharp kinematic d…