2.9k citations · 37.8k across the 255 of their papers we have counts for
14 papers · 2 filters
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…
The Mass of the Milky Way from the H3 Survey
Jeff Shen, Gwendolyn M. Eadie, Norman Murray +8
The mass of the Milky Way is a critical quantity which, despite decades of research, remains uncertain within a factor of two. Until recently, most studies have used dynamical trac…
Wide binaries from the H3 survey: the thick disk and halo have similar wide binary fractions
Hsiang-Chih Hwang, Yuan-Sen Ting, Charlie Conroy +8
Due to the different environments in the Milky Way's disk and halo, comparing wide binaries in the disk and halo is key to understanding wide binary formation and evolution. By usi…
Evidence from Disrupted Halo Dwarfs that -process Enrichment via Neutron Star Mergers is Delayed by Myrs
Rohan P. Naidu, Alexander P. Ji, Charlie Conroy +10
The astrophysical origins of -process elements remain elusive. Neutron star mergers (NSMs) and special classes of core-collapse supernovae (rCCSNe) are leading candidates. Due t…
The Synchrony of Production & Escape: Half the Bright Ly Emitters at have Lyman Continuum Escape Fractions
Rohan P. Naidu, Jorryt Matthee, Pascal A. Oesch +14
The ionizing photon escape fraction (LyC ) of star-forming galaxies is the single greatest unknown in the reionization budget. Stochastic sightline effects prohibit t…
A New Census of the 0.2< z <3.0 Universe, Part II: The Star-Forming Sequence
Joel Leja, Joshua S. Speagle, Yuan-Sen Ting +6
We use the panchromatic SED-fitting code Prospector to measure the galaxy logM-logSFR relationship (the `star-forming sequence') across using the COSMOS-2015 an…
Variation in the stellar initial mass function from the chromospheric activity of M dwarfs in early-type galaxies
Pieter van Dokkum, Charlie Conroy
Mass measurements and absorption line studies indicate that the stellar initial mass function (IMF) is bottom-heavy in the central regions of many early-type galaxies, with an exce…
Stellar Streams in the Galactic Disk: Predicted Lifetimes and Their Utility in Measuring the Galactic Potential
Harshil Kamdar, Charlie Conroy, Yuan-Sen Ting
In this paper, we present a holistic view of the detection, characterization, and origin of stellar streams in the disk of a simulated Milky Way-like galaxy. The star-by-star simul…
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…
Elemental Abundances and Ages of Quiescent Galaxies on the Mass-Size Plane: Implication for Chemical Enrichment and Star-Formation Quenching
Aliza G. Beverage, Mariska Kriek, Charlie Conroy +3
We present elemental abundances and stellar population ages for 68 massive quiescent galaxies at from the LEGA-C survey. The abundance patterns and ages, deriv…
All-Sky Dynamical Response of the Galactic Halo to the Large Magellanic Cloud
Charlie Conroy, Rohan P. Naidu, Nicolas Garavito-Camargo +4
Gravitational interactions between the Large Magellanic Cloud (LMC) and the stellar and dark matter halo of the Milky Way are expected to give rise to disequilibrium phenomena in t…
Reconstructing the Last Major Merger of the Milky Way with the H3 Survey
Rohan P. Naidu, Charlie Conroy, Ana Bonaca +8
Several lines of evidence suggest the Milky Way underwent a major merger at z~2 with a galaxy known as Gaia-Sausage-Enceladus (GSE). Here we use H3 Survey data to argue that GSE en…
Fast, Slow, Early, Late: Quenching Massive Galaxies at z~0.8
Sandro Tacchella, Charlie Conroy, S. M. Faber +14
We investigate the stellar populations for a sample of 161 massive, mainly quiescent galaxies at with deep Keck/DEIMOS rest-frame optical spectros…
Spatially Resolved Stellar Spectroscopy of the Ultra-diffuse Galaxy Dragonfly 44. III. Evidence for an Unexpected Star-Formation History
Alexa Villaume, Aaron J. Romanowsky, Jean Brodie +6
We use the Keck Cosmic Web Imager integral-field unit spectrograph to: 1) measure the global stellar population parameters for the ultra-diffuse galaxy (UDG) Dragonfly 44 (DF44) to…