564 citations · 7.4k across the 115 of their papers we have counts for
6 papers · 2 filters
The Panchromatic Hubble Andromeda Treasury VIII: A Wide-Area, High-Resolution Map of Dust Extinction in M31
Julianne J. Dalcanton, Morgan Fouesneau, David W. Hogg +15
We map the distribution of dust in M31 at 25pc resolution, using stellar photometry from the Panchromatic Hubble Andromeda Treasury. We develop a new mapping technique that models…
A Spectroscopic and Photometric Exploration of the C/M Ratio in the Disk of M31
Katherine M. Hamren, Constance M. Rockosi, Puragra Guhathakurta +12
We explore the ratio (C/M) of carbon-rich to oxygen-rich thermally pulsing asymptotic giant branch(TP-AGB) stars in the disk of M31 using a combination of moderate-resolution optic…
A Global Star Forming Episode in M31 2-4 Gyr Ago
Benjamin F. Williams, Julianne J. Dalcanton, Andrew E. Dolphin +9
We have identified a major global enhancement of star formation in the inner M31 disk that occurred between 2-4 Gyr ago, producing 60% of the stellar mass formed in the past…
The Star Formation Histories of Local Group Dwarf Galaxies III. Characterizing Quenching in Low-Mass Galaxies
Daniel R. Weisz, Andrew E. Dolphin, Evan D. Skillman +4
We explore the quenching of low-mass galaxies (10^4 < Mstar < 10^8 Msun) as a function of lookback time using the star formation histories (SFHs) of 38 Local Group dwarf galaxies.…
A clear age-velocity dispersion correlation in Andromeda's stellar disk
Claire E. Dorman, Puragra Guhathakurta, Anil C. Seth +9
The stellar kinematics of galactic disks are key to constraining disk formation and evolution processes. In this paper, for the first time, we measure the stellar age-velocity disp…
Tracing the Metal-Poor M31 Stellar Halo with Blue Horizontal Branch Stars
Benjamin F. Williams, Julianne J. Dalcanton, Eric F. BellKaroline M. Gilbert +7
We have analyzed new HST/ACS and HST/WFC3 imaging in F475W and F814W of two previously-unobserved fields along the M31 minor axis to confirm our previous constraints on the shape o…