activity
20182026
most citedA trail of dark matter-free galaxies from a bullet dwarf collision

97 citations · 469 across the 26 of their papers we have counts for

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Showing 2021Show all

5 papers · 1 filter

astro-ph.GA2021★ 13 cited

A Nascent Tidal Dwarf Galaxy Forming within the Northern HI Streamer of M82

Imad Pasha, Deborah Lokhorst, Pieter G. van Dokkum +12

We identify a 600 pc-wide region of active star formation located within a tidal streamer of M82 via emission ( erg s cm), us…

astro-ph.GA2021★ 68 cited

NGC5846-UDG1: A galaxy formed mostly by star formation in massive, extremely dense clumps of gas

Shany Danieli, Pieter van Dokkum, Sebastian Trujillo-Gomez +10

It has been shown that ultra-diffuse galaxies (UDGs) have higher specific frequencies of globular clusters on average than other dwarf galaxies with similar luminosities. The UDG N…

astro-ph.IM2021★ 20 cited

A Method To Characterize the Wide-Angle Point Spread Function of Astronomical Images

Qing Liu, Roberto Abraham, Colleen Gilhuly +14

Uncertainty in the wide-angle Point Spread Function (PSF) at large angles (tens of arcseconds and beyond) is one of the dominant sources of error in a number of important quantitie…

astro-ph.GA2021★ 38 cited

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

Michael A. Keim, Pieter van Dokkum, Shany Danieli +11

Two ultra diffuse galaxies in the same group, NGC1052-DF2 and NGC1052-DF4, have been found to have little or no dark matter and to host unusually luminous globular cluster populati…

astro-ph.GA2021★ 69 cited

A Tip of the Red Giant Branch Distance of Mpc to the Dark Matter Deficient Galaxy NGC1052-DF2 from 40 Orbits of Hubble Space Telescope Imaging

Zili Shen, Shany Danieli, Pieter van Dokkum +7

The large and diffuse galaxies NGC1052-DF2 and NGC1052-DF4 have been found to have very low dark matter content and a population of luminous globular clusters. Accurate distance me…