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- Flatiron Institute67 papers
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14 papers · 1 filter
Compressed sensing and optimal denoising of monotone signals
Eftychios A. Pnevmatikakis
We consider the problems of compressed sensing and optimal denoising for signals that are monotone, i.e., , an…
Exploring the Long-Term Evolution of GRS 1915+105
D. Huppenkothen, L. M. Heil, D. W. Hogg +1
Among the population of known galactic black hole X-ray binaries, GRS 1915+105 stands out in multiple ways. It has been in continuous outburst since 1992, and has shown a wide rang…
OVI Emission From the Supernovae-regulated Interstellar Medium: Simulation Vs Observation
Miao Li, Greg Bryan, Jeremiah P. Ostriker
The OVI 1032, 1038Å doublet emission traces collisionally ionized gas with K, where the cooling curve peaks for metal-enriched plasma. This warm-hot phase i…
Grackle: a Chemistry and Cooling Library for Astrophysics
Britton D. Smith, Greg L. Bryan, Simon C. O. Glover +11
We present the Grackle chemistry and cooling library for astrophysical simulations and models. Grackle provides a treatment of non-equilibrium primordial chemistry and cooling for…
The Joker: A custom Monte Carlo sampler for binary-star and exoplanet radial velocity data
Adrian M. Price-Whelan, David W. Hogg, Daniel Foreman-Mackey +1
Given sparse or low-quality radial-velocity measurements of a star, there are often many qualitatively different stellar or exoplanet companion orbit models that are consistent wit…
High-frequency asymptotics of the vertex function: diagrammatic parametrization and algorithmic implementation
N. Wentzell, G. Li, A. Tagliavini +5
Vertex functions are a crucial ingredient of several forefront many-body algorithms in condensed matter physics. However, the full treatment of their frequency and momentum depende…