14.6k citations · 48.6k across the 162 of their papers we have counts for
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Orbital Torus Imaging: Using Element Abundances to Map Orbits and Mass in the Milky Way
Adrian M. Price-Whelan, David W. Hogg, Kathryn V. Johnston +9
Many approaches to galaxy dynamics assume that the gravitational potential is simple and the distribution function is time-invariant. Under these assumptions there are traditional…
Separatrix Divergence of Stellar Streams in Galactic Potentials
Tomer D. Yavetz, Kathryn V. Johnston, Sarah Pearson +2
Flattened axisymmetric galactic potentials are known to host minor orbit families surrounding orbits with commensurable frequencies. The behavior of orbits that belong to these orb…
Software Sustainability & High Energy Physics
Daniel S. Katz, Sudhir Malik, Mark S. Neubauer +16
New facilities of the 2020s, such as the High Luminosity Large Hadron Collider (HL-LHC), will be relevant through at least the 2030s. This means that their software efforts and tho…
Quantifying the impact of the Large Magellanic Cloud on the structure of the Milky Way's dark matter halo using Basis Function Expansions
Nicolas Garavito-Camargo, Gurtina Besla, Chervin F. P. Laporte +5
Indications of disequilibrium throughout the Milky Way (MW) highlight the need for compact,flexible, non-parametric descriptions of phase--space distributions of galaxies. We prese…
Detecting the Figure Rotation of Dark Matter Halos with Tidal Streams
Monica Valluri, Adrian M. Price-Whelan, Sarah J. Snyder
The dark matter halos that surround Milky Way-like galaxies in cosmological simulations are, to first order, triaxial. Nearly 30 years ago it was predicted that such triaxial dark…
The Close Binary Fraction as a Function of Stellar Parameters in APOGEE: A Strong Anti-Correlation With Abundances
Christine N. Mazzola, Carles Badenes, Maxwell Moe +20
We use observations from the APOGEE survey to explore the relationship between stellar parameters and multiplicity. We combine high-resolution repeat spectroscopy for 41,363 dwarf…
Meta-Learning for One-Class Classification with Few Examples using Order-Equivariant Network
Ademola Oladosu, Tony Xu, Philip Ekfeldt +5
This paper presents a meta-learning framework for few-shots One-Class Classification (OCC) at test-time, a setting where labeled examples are only available for the positive class,…
Discovery of Extended Tidal Tails around the Globular Cluster Palomar 13
Nora Shipp, Adrian Price-Whelan, Kiyan Tavangar +2
We use photometry from the DECam Legacy Survey to detect candidate tidal tails extending ~5 deg on either side of the Palomar 13 globular cluster. The tails are aligned with the pr…
Data Analysis Recipes: Products of multivariate Gaussians in Bayesian inferences
David W. Hogg, Adrian M. Price-Whelan, Boris Leistedt
A product of two Gaussians (or normal distributions) is another Gaussian. That's a valuable and useful fact! Here we use it to derive a refactoring of a common product of multivari…
Exploring the evolution of stellar rotation using Galactic kinematics
Ruth Angus, Angus Beane, Adrian M. Price-Whelan +9
The rotational evolution of cool dwarfs is poorly constrained after around 1-2 Gyr due to a lack of precise ages and rotation periods for old main-sequence stars. In this work we u…
A Larger Extent for the Ophiuchus Stream
N. Caldwell, A. Bonaca, A. Price-Whelan +2
We present new kinematic data for the Ophiuchus stellar stream. Spectra have been taken of member candidates at the MMT telescope using Hectospec, Hectochelle and Binospec, which p…
No Massive Companion to the Coherent Radio-Emitting M Dwarf GJ 1151
Benjamin J. S. Pope, Megan Bedell, Joseph R. Callingham +4
The recent detection of circularly polarized, long-duration (>8 hr) low-frequency (~150 MHz) radio emission from the M4.5 dwarf GJ 1151 has been interpreted as arising from a star-…
Close Binary Companions to APOGEE DR16 Stars: 20,000 Binary-star Systems Across the Color-Magnitude Diagram
Adrian M. Price-Whelan, David W. Hogg, Hans-Walter Rix +20
Many problems in contemporary astrophysics---from understanding the formation of black holes to untangling the chemical evolution of galaxies---rely on knowledge about binary stars…
High-resolution spectroscopy of the GD-1 stellar stream localizes the perturber near the orbital plane of Sagittarius
Ana Bonaca, Charlie Conroy, David W. Hogg +6
The -long thin stellar stream in the Milky Way halo, GD-1, has an ensemble of features that may be due to dynamical interactions. Using high-resolution MMT/Hectochelle s…