Trending Research

Automated crater detection on Mars using deep learning

silburt/DeepMoon 16 Apr 2019

I present an automated system for crater detection and cataloging using a digital terrain model (DTM) of Mars - In the algorithm craters are first identified as rings or disks on samples of the DTM image using a convolutional neural network with a UNET architecture, and the location and size of the features are determined using a circle matching algorithm.

Earth and Planetary Astrophysics

115
0.01 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

122
0.01 stars / hour

Caustic and hydrostatic mass bias: Implications for modified gravity

dfm/emcee 9 Jan 2024

We propose and perform a joint analysis of the two different mass estimates of galaxy clusters, namely the hydrostatic and caustic techniques.

Cosmology and Nongalactic Astrophysics

1,426
0.01 stars / hour

Recovering the star formation histories of recently-quenched galaxies: the impact of model and prior choices

bd-j/prospector 6 Jul 2022

Finally, we show that our new, public SFH model is able to accurately recover the properties of mock star-forming and quiescent galaxies and is suitable for broader use in the SED fitting community.

Astrophysics of Galaxies

149
0.01 stars / hour

A spectral synthesis code for rapid modelling of supernovae

tardis-sn/tardis 21 Jan 2014

We present TARDIS - an open-source code for rapid spectral modelling of supernovae (SNe).

Solar and Stellar Astrophysics Instrumentation and Methods for Astrophysics

196
0.01 stars / hour

S 308 and other X-ray emitting bubbles around Wolf-Rayet stars

jeltef/pylatex 29 Nov 2023

We did not detect any of the 22 optical/IR emitting bubbles in X-rays, but using our best fit model, we estimated the 3$\sigma$ flux upper limits for each bubble.

High Energy Astrophysical Phenomena

2,196
0.01 stars / hour

Solving Kepler's equation CORDIC-like

mzechmeister/ke 21 Aug 2018

Based on the idea of CORDIC, it requires only additions and multiplications and a short table.

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Solar and Stellar Astrophysics

16
0.01 stars / hour

Large Metallicity Variations in the Galactic Interstellar Medium

jkrogager/VoigtFit 7 Sep 2021

The Interstellar Medium (ISM) comprises gases at different temperatures and densities, including ionized, atomic, molecular species, and dust particles.

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Solar and Stellar Astrophysics

27
0.01 stars / hour

An adaptive mesh, GPU-accelerated, and error minimized special relativistic hydrodynamics code

gamer-project/gamer 21 Dec 2020

We present a new special relativistic hydrodynamics (SRHD) code capable of handling coexisting ultra-relativistically hot and non-relativistically cold gases.

High Energy Astrophysical Phenomena

71
0.01 stars / hour

A fast particle-mesh simulation of non-linear cosmological structure formation with massive neutrinos

rainwoodman/fastpm 27 Jul 2020

In turn, the percentage increase in runtime-per-step due to neutrino particles is between $\sim 5-20\%$ for runs with $1024^3$ CDM particles, and decreases as the number of CDM particles is increased.

Cosmology and Nongalactic Astrophysics

62
0.01 stars / hour