Trending Research
Monte Carlo Radiative Transfer
The theory and numerical modelling of radiation processes and radiative transfer play a key role in astrophysics: they provide the link between the physical properties of an object and the radiation it emits.
Instrumentation and Methods for Astrophysics
CRPropa 3.2 -- an advanced framework for high-energy particle propagation in extragalactic and galactic spaces
The landscape of high- and ultra-high-energy astrophysics has changed in the last decade, largely due to the inflow of data collected by large-scale cosmic-ray, gamma-ray, and neutrino observatories.
High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics
Impact of the Hubble tension on the $r$-$n_s$ contour
The injection of early dark energy (EDE) before the recombination, a possible resolution of the Hubble tension, will not only shift the scalar spectral index $n_s$ towards $n_s=1$, but also be likely to tighten the current upper limit on tensor-to-scalar ratio $r$.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Theory
A Comparative Study of Atmospheric Chemistry with VULCAN
First, we validate our photochemical model for hot Jupiter atmospheres by performing an intercomparison of HD 189733b models between Moses et al. (2011), Venot et al. (2012), and VULCAN, to diagnose possible sources of discrepancy.
Earth and Planetary Astrophysics
A Reply to: Large Exomoons unlikely around Kepler-1625 b and Kepler-1708 b
We demonstrate that their Hubble light curve exhibits ~20% higher noise and discards 11% of the useful data, which compromises its ability to recover the subtle signal of Kepler-1625 b-i.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
galstreams: A Library of Milky Way Stellar Stream Footprints and Tracks
Nearly a hundred stellar streams have been found to date around the Milky Way and the number keeps growing at an ever faster pace.
Astrophysics of Galaxies
A fast particle-mesh simulation of non-linear cosmological structure formation with massive neutrinos
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
$5 σ$ tension between Planck cosmic microwave background and eBOSS Lyman-alpha forest and constraints on physics beyond $Λ$CDM
We find that combined Planck cosmic microwave background, baryon acoustic oscillations and supernovae data analyzed under $\Lambda$CDM are in 4. 9$\sigma$ tension with eBOSS Ly$\alpha$ forest in inference of the linear matter power spectrum at wavenumber $\sim 1 h\,\mathrm{Mpc}^{-1}$ and redshift = 3.
Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
The Payne: self-consistent ab initio fitting of stellar spectra
We present The Payne, a general method for the precise and simultaneous determination of numerous stellar labels from observed spectra, based on fitting physical spectral models.
Solar and Stellar Astrophysics Astrophysics of Galaxies
The full Boltzmann hierarchy for dark matter-massive neutrino interactions
The impact of dark matter-neutrino interactions on the measurement of the cosmological parameters has been investigated in the past in the context of massless neutrinos exclusively.
Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology
