48 citations · 67 across the 15 of their papers we have counts for
6 papers · 1 filter
Homogeneous Stellar Parameters from Heterogeneous Spectra with Deep Learning
Jeff Shen, Joshua S. Speagle, Shirley Ho
Large-scale spectroscopic surveys have collectively observed millions of stars across the Milky Way, but each derives stellar labels using independent pipelines with distinct model…
Iron Snails: non-equilibrium dynamics and spiral abundance patterns
Neige Frankel, David W. Hogg, Scott Tremaine +2
Galaxies are not in a dynamical steady state. They continually undergo perturbations, e.g., from infalling dwarf galaxies and dark-matter substructure. After a dynamical perturbati…
Outlier Detection in the DESI Bright Galaxy Survey
Yan Liang, Peter Melchior, ChangHoon Hahn +3
We present an unsupervised search for outliers in the Bright Galaxy Survey (BGS) dataset from the DESI Early Data Release. This analysis utilizes an autoencoder to compress galaxy…
Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution
Jeff Shen, Joshua S. Speagle, J. Ted Mackereth +2
Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use chemical abundances to infer ages…
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…
Molecular gas in a gravitationally lensed galaxy group at
Jeff Shen, Allison W. S. Man, Johannes Zabl +5
Most molecular gas studies of galaxies are of intrinsically bright objects, despite the galaxy population being primarily "normal" galaxies with less extreme star formati…