Trending Research

The Southern Photometric Local Universe Survey (S-PLUS): improved SEDs, morphologies and redshifts with 12 optical filters

Schwarzam/splusdata 2 Jul 2019

The Southern Photometric Local Universe Survey (S-PLUS) is imaging ~9300 deg^2 of the celestial sphere in twelve optical bands using a dedicated 0. 8 m robotic telescope, the T80-South, at the Cerro Tololo Inter-American Observatory, Chile.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics

16
0.04 stars / hour

The Athena++ Adaptive Mesh Refinement Framework: Multigrid Solvers for Self-Gravity

PrincetonUniversity/athena 27 Feb 2023

We describe the implementation of multigrid solvers in the Athena++ adaptive mesh refinement (AMR) framework and their application to the solution of the Poisson equation for self-gravity.

Instrumentation and Methods for Astrophysics

192
0.04 stars / hour

A Hitchhiker's Guide to Anomaly Detection with Astronomaly

MichelleLochner/astronomaly 25 Jan 2022

The next generation of telescopes such as the SKA and the Rubin Observatory will produce enormous data sets, requiring automated anomaly detection to enable scientific discovery.

Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies

86
0.03 stars / hour

Learned harmonic mean estimation of the Bayesian evidence with normalizing flows

astro-informatics/harmonic 9 May 2024

We present the learned harmonic mean estimator with normalizing flows - a robust, scalable and flexible estimator of the Bayesian evidence for model comparison.

Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Methodology

49
0.03 stars / hour

GalSim: The modular galaxy image simulation toolkit

GalSim-developers/GalSim 29 Jul 2014

GALSIM is a collaborative, open-source project aimed at providing an image simulation tool of enduring benefit to the astronomical community.

Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics 85-04

216
0.03 stars / hour

Barycentric Corrections at 1 cm/s for precise Doppler velocities

shbhuk/barycorrpy 16 Sep 2014

The goal of this paper is to establish the requirements of a barycentric correction with an RMS of $\lesssim 1$ cm/s, which is an order of magnitude better than necessary for the Doppler detection of true Earth analogs ($\sim9$ cm/s).

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics

35
0.02 stars / hour

The Physics of Falling Raindrops in Diverse Planetary Atmospheres

kaitlyn-loftus/rainprops 18 Feb 2021

The evolution of a single raindrop falling below a cloud is governed by fluid dynamics and thermodynamics fundamentally transferable to planetary atmospheres beyond modern Earth's.

Earth and Planetary Astrophysics Atmospheric and Oceanic Physics

9
0.02 stars / hour

CAvity DEtection Tool (CADET): Pipeline for automatic detection of X-ray cavities in hot galactic and cluster atmospheres

tomasplsek/CADET 11 Apr 2023

Properly estimating their total extent is, however, non-trivial, prone to biases, nearly impossible for poor-quality data, and so far has been done manually by scientists.

High Energy Astrophysical Phenomena Astrophysics of Galaxies

8
0.02 stars / hour

A Parametric Study of the SASI Comparing General Relativistic and Nonrelativistic Treatments

AMReX-Codes/amrex 20 Jul 2023

We present numerical results from a parameter study of the standing accretion shock instability (SASI), investigating the impact of general relativity (GR) on the dynamics.

High Energy Astrophysical Phenomena Solar and Stellar Astrophysics General Relativity and Quantum Cosmology Fluid Dynamics

497
0.02 stars / hour

Phantom-Powered Nested Sampling

Joshuaalbert/jaxns 18 Dec 2023

We introduce a novel technique within the Nested Sampling framework to enhance efficiency of the computation of Bayesian evidence, a critical component in scientific data analysis.

Instrumentation and Methods for Astrophysics Computation

130
0.02 stars / hour