activity
20042022
most citedStellar Metallicities and Elemental Abundance Ratios of z~1.4 Massive Quiescent Galaxies

59 citations · 245 across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.GA2022★ 23 cited

Quenching in Cosmic Sheets: Tracing the Impact of Large Scale Structure Collapse on the Evolution of Dwarf Galaxies

Imad Pasha, Nir Mandelker, Frank C. van den Bosch +2

Dwarf galaxies are thought to quench primarily due to environmental processes most typically occurring in galaxy groups and clusters or around single, massive galaxies. However, at…

astro-ph.GA2022★ 21 cited

A giant shell of ionized gas discovered near M82 with the Dragonfly Spectral Line Mapper pathfinder

Deborah Lokhorst, Roberto Abraham, Imad Pasha +8

We present the discovery of a giant cloud of ionized gas in the field of the starbursting galaxy M82. Emission from the cloud is seen in H and [NII]6583 in data obtained thou…

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.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.GA2020★ 8 cited

Brackett- as a Gold-standard Test of Star Formation Rates Derived from SED Fitting

Imad Pasha, Joel Leja, Pieter G. van Dokkum +2

Using a local reference sample of 21 galaxies, we compare observations of the 2.16 m Brackett- (Br) hydrogen recombination line with predictions from the Prospector Bay…