50 citations · 249 across the 11 of their papers we have counts for
11 papers
Stellar halos from The Dragonfly Edge-on Galaxies Survey
Colleen Gilhuly, Allison Merritt, Roberto Abraham +6
We present the primary results from the Dragonfly Edge-on Galaxies Survey (DEGS), an exploration of the stellar halos of twelve nearby ( Mpc) edge-on disc galaxies with the…
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…
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…
The Dragonfly Wide Field Survey. II. Accurate Total Luminosities and Colors of Nearby Massive Galaxies and Implications for the Galaxy Stellar Mass Function
Tim B. Miller, Pieter van Dokkum, Shany Danieli +8
Stellar mass estimates of massive galaxies are susceptible to systematic errors in their photometry, due to their extended light profiles. In this study we use data from the Dragon…
The Dragonfly Wide Field Survey. I. Telescope, Survey Design and Data Characterization
Shany Danieli, Deborah Lokhorst, Jielai Zhang +11
We present a description of the Dragonfly Wide Field Survey (DWFS), a deep photometric survey of a wide area of sky. The DWFS covers 330 in the equatorial GAMA fie…
Multi-resolution filtering: an empirical method for isolating faint, extended emission in Dragonfly data and other low resolution images
Pieter van Dokkum, Deborah Lokhorst, Shany Danieli +5
We describe an empirical, self-contained method to isolate faint, large-scale emission in imaging data of low spatial resolution. Multi-resolution filtering (MRF) uses independent…
The Dragonfly Edge-on Galaxies Survey: Shaping the outer disc of NGC 4565 via accretion
Colleen Gilhuly, David Hendel, Allison Merritt +6
We present extremely deep imaging of the well-known edge-on galaxy NGC 4565 (the "Needle Galaxy"), observed as part of the Dragonfly Edge-on Galaxies Survey. Our imaging traces sta…
Pipe3D Stellar and Gaseous Velocity Dispersions for CALIFA Galaxies
Colleen Gilhuly, Stéphane Courteau, Sebastian F. Sánchez
We present tables of velocity dispersions derived from CALIFA V1200 datacubes using Pipe3D. Four different dispersions are extracted from emission (ionized gas) or absorption (stel…
Dragonfly imaging of the galaxy NGC5907: a revised view of the iconic stellar stream
Pieter van Dokkum, Colleen Gilhuly, Ana Bonaca +6
In 2008 it was reported that the stellar stream of the edge-on spiral NGC5907 loops twice around the galaxy, enveloping it in a giant corkscrew-like structure. Here we present imag…
An Extensive Photometric Catalog of CALIFA Galaxies
Colleen Gilhuly, Stéphane Courteau
We present an extensive compendium of photometrically-determined structural properties for all CALIFA galaxies in the Third Data Release (DR3). We exploit Sloan Digital Sky Survey…
Simulating a slow bar in the low surface brightness galaxy UGC 628
Matthew H. Chequers, Kristine Spekkens, Lawrence M. Widrow +1
We present a disc-halo N-body model of the low surface brightness galaxy UGC 628, one of the few systems that harbours a "slow" bar with a ratio of corotation radius to bar length…