The hydrodynamics of an ultrarelativistic flow, enclosed by a strong shock wave, are described by the well known Blandford-McKee solutions in spherical geometry. These solutions, however, become inaccurate at a

# Solving high-dimensional parameter inference: marginal posterior densities & Moment Networks. (arXiv:2011.05991v1 [stat.ML])

High-dimensional probability density estimation for inference suffers from the “curse of dimensionality”. For many physical inference problems, the full posterior distribution is unwieldy and seldom used in practice. Instead, we

# Neural networks as optimal estimators to marginalize over baryonic effects. (arXiv:2011.05992v1 [astro-ph.CO])

Many different studies have shown that a wealth of cosmological information resides on small, non-linear scales. Unfortunately, there are two challenges to overcome to utilize that information. First, we do

# Constraints on Axions from Cosmic Distance Measurements. (arXiv:2011.05993v1 [hep-ph])

Axion couplings to photons could induce photon-axion conversion in the presence of magnetic fields in the Universe. The conversion could impact various cosmic distance measurements such as luminosity distances to

# The influence of infall on the properties of protoplanetary discs. (arXiv:2011.05996v1 [astro-ph.EP])

We perform a population synthesis of protoplanetary discs including infall with a total of $50\,000$ simulations using a 1D vertically integrated viscous evolution code, studying a large parameter space in

# Modeling in-ice radio propagation with parabolic equation methods. (arXiv:2011.05997v1 [astro-ph.IM])

We investigate the use of parabolic equation (PE) methods for solving radio-wave propagation in polar ice. PE methods provide an approximate solution to Maxwell’s equations, in contrast to full-field solutions

# An AMUSING Look at the Host of the Periodic Nuclear Transient ASASSN-14ko Reveals a Second AGN. (arXiv:2011.05998v1 [astro-ph.GA])

We present Multi-Unit Spectroscopic Explorer (MUSE) integral-field spectroscopy of ESO 253$-$G003, which hosts a known Active Galactic Nucleus (AGN) and the periodic nuclear transient ASASSN-14ko, observed as part of the

# Primordial black hole dark matter in dilaton-extended two-field Starobinsky inflation. (arXiv:2011.05999v1 [hep-th])

We investigate the production of primordial black holes and their contribution to the presently observed dark matter in a dilaton two-field extension of Starobinsky’s quadratic $f(R)$ model of inflation. The

# Unveiling the rarest morphologies of the LOFAR Two-metre Sky Survey radio source population with self-organised maps. (arXiv:2011.06001v1 [astro-ph.IM])

The Low Frequency Array (LOFAR) Two-metre Sky Survey (LoTSS) is a low-frequency radio continuum survey of the Northern sky at an unparalleled resolution and sensitivity. In order to fully exploit

# TDCOSMO VI: Distance Measurements in Time-delay Cosmography under the Mass-sheet transformation. (arXiv:2011.06002v1 [astro-ph.CO])

Time-delay cosmography with gravitationally lensed quasars plays an important role in anchoring the absolute distance scale and hence measuring the Hubble constant, $H_{0}$, independent of traditional distance ladder methodology. A