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Found 12 papers, 9 papers with code
Scaling Laws for Galaxy Images
We then compare the downstream performance of finetuned models pretrained on either ImageNet-12k alone vs. additionally pretrained on our galaxy images.
On $N$-body simulations of globular cluster stream
Stellar tidal streams are sensitive tracers of the properties of the gravitational potential in which they orbit and detailed observations of their density structure can be used to place stringent constraints on fluctuations in the potential caused by, e. g., the expected populations of dark matter subhalos in the standard cold dark matter paradigm (CDM).
Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
A purely acceleration-based measurement of the fundamental Galactic parameters
Klioner et al. have used the Gaia EDR3 data to directly measure the solar system's acceleration within the Milky Way using the apparent proper motions of quasars.
Astrophysics of Galaxies Solar and Stellar Astrophysics
Evidence of a population of dark subhalos from Gaia and Pan-STARRS observations of the GD-1 stream
New data from the $\textit{Gaia}$ satellite, when combined with accurate photometry from the Pan-STARRS survey, allow us to accurately estimate the properties of the GD-1 stream.
Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics
Dynamical heating across the Milky Way disc using APOGEE and $\it{Gaia}$
Outer disc populations also have flatter radial AVRs than those in the inner disc, likely due to the waning effect of spiral arms.
Astrophysics of Galaxies
Vertical waves in Gaia DR2
The vertical structure and dynamics of stars in our local Galactic neighbourhood contains much information about the local distribution of visible and dark matter and of perturbations to the Milky Way disc.
Astrophysics of Galaxies
Deep learning of multi-element abundances from high-resolution spectroscopic data
We determine parameters and abundances for 18 individual elements at the $\approx 0. 03$ dex level, even at low signal-to-noise ratio.
Astrophysics of Galaxies Instrumentation and Methods for Astrophysics
Improving \textsl{Gaia} parallax precision with a data-driven model of stars
Usually this prior represents beliefs about the stellar density distribution of the Milky Way.
Astrophysics of Galaxies
The chemical homogeneity of open clusters
Determining the level of chemical homogeneity in open clusters is of fundamental importance in the study of the evolution of star-forming clouds and that of the Galactic disk.
Astrophysics of Galaxies Solar and Stellar Astrophysics
On Galactic density modeling in the presence of dust extinction
This formalism demonstrates that the spatially-complex effect of extinction on the selection function of a pencil-beam or contiguous sky survey is equivalent to a low-pass filtering of the extinction-affected selection function with the smooth density field.
Astrophysics of Galaxies
The stellar population structure of the Galactic disk
We use data on 14, 699 red-clump stars from the APOGEE survey, covering 4 kpc <~ R <~ 15 kpc, to determine the structure of mono-abundance populations (MAPs)---stars in narrow bins in [a/Fe] and [Fe/H]---accounting for the complex effects of the APOGEE selection function and the spatially-variable dust obscuration.
Astrophysics of Galaxies
Data analysis recipes: Fitting a model to data
We go through the many considerations involved in fitting a model to data, using as an example the fit of a straight line to a set of points in a two-dimensional plane.
Instrumentation and Methods for Astrophysics Data Analysis, Statistics and Probability
