The inverse problem, obtaining orbital and stellar parameters given observational data, is more complicated and computationally expensive as it requires generating a large set of forward-models to determine which set of parameters and uncertainties best represent the available observational data.

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

This discrepancy is particularly pronounced in retrograde encounters, where relativistic simulations predict up to $30\%$ more separation events and an earlier onset of binary separation ($\beta=2$ compared to $2. 5$ in Newtonian simulations, with $\beta$ the impact parameter).

High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology

We construct a parametric SED model which is able to reproduce the average observed SDSS-UKIDSS-WISE quasar colours to within one tenth of a magnitude across a wide range of redshift $(0<z<5)$ and luminosity $(-22>M_i>-29)$.

Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

PyExoCross is a Python adaptation of the ExoCross Fortran application, PyExoCross is designed for postprocessing the huge molecular line lists generated by the ExoMol project and other similar initiatives such as the HITRAN and HITEMP databases.

Instrumentation and Methods for Astrophysics Earth and Planetary Astrophysics Chemical Physics

pocoMC is a Python package for accelerated Bayesian inference in astronomy and cosmology.

Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Computational Physics

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

Firstly, we demonstrate that complete waveforms which cover the inspiral, merger, and ringdown of binary black holes (i. e. IMRPhenomD) can be written in jax and demonstrate that the serial evaluation speed of the waveform (and its derivative) is similar to the lalsuite implementation in C. Moreover, jax allows for GPU-accelerated waveform calls which can be over an order of magnitude faster than serial evaluation on a CPU.

Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena General Relativity and Quantum Cosmology

Everywhere: AstroPhot can optimize forward models on CPU or GPU; across images that are large, multi-band, multi-epoch, rotated, dithered, and more.

Instrumentation and Methods for Astrophysics Astrophysics of Galaxies Solar and Stellar Astrophysics

We show how importance sampling can be used to reconstruct the statistics of rare cosmological fluctuations in stochastic inflation.

Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

The maps are equally well fitted, and a comparison of the MBB parameters shows that our model succeeds in capturing the spatial variations of the SED from the data.

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