381 citations · 4k across the 59 of their papers we have counts for
29 papers · 1 filter
An Older, More Quiescent Universe from Panchromatic SED Fitting of the 3D-HST Survey
Joel Leja, Benjamin D. Johnson, Charlie Conroy +8
Galaxy observations are influenced by many physical parameters: stellar masses, star formation rates (SFRs), star formation histories (SFHs), metallicities, dust, black hole activi…
1D Kinematics from stars and ionized gas at from the LEGA-C spectroscopic survey of massive galaxies
Rachel Bezanson, Arjen van der Wel, Caroline Straatman +14
We present a comparison of the observed, spatially integrated stellar and ionized gas velocity dispersions of massive () galaxies…
How to Measure Galaxy Star Formation Histories II: Nonparametric Models
Joel Leja, Adam C. Carnall, Benjamin D. Johnson +2
Nonparametric star formation histories (SFHs) have long promised to be the `gold standard' for galaxy spectral energy distribution (SED) modeling as they are flexible enough to des…
How to measure galaxy star-formation histories I: Parametric models
A. C. Carnall, J. Leja, B. D. Johnson +3
Parametric models for galaxy star-formation histories (SFHs) are widely used, though they are known to impose strong priors on physical parameters. This has consequences for measur…
The Spur and the Gap in GD-1: Dynamical evidence for a dark substructure in the Milky Way halo
Ana Bonaca, David W. Hogg, Adrian M. Price-Whelan +1
We present a model for the interaction of the GD-1 stellar stream with a massive perturber that naturally explains many of the observed stream features, including a gap and an off-…
ZFOURGE: Extreme 5007 emission may be a common early-lifetime phase for star-forming galaxies at
Jonathan H. Cohn, Joel Leja, Kim-Vy H. Tran +12
Using the \prospector\ spectral energy distribution (SED) fitting code, we analyze the properties of 19 Extreme Emission Line Galaxies (EELGs) identified in the bluest composite SE…