Search Publications
A strangely light neutron star within a supernova remnant
Doroshenko, Victor; Santangelo, Andrea; Pühlhofer, Gerd +1 more
To constrain the equation of state of cold dense matter, astrophysical measurements are essential. These are mostly based on observations of neutron stars in the X-ray band, and, more recently, also on gravitational wave observations. Of particular interest are observations of unusually heavy or light neutron stars which extend the range of centra…
Signatures of strong magnetization and a metal-poor atmosphere for a Neptune-sized exoplanet
Mikal-Evans, Thomas; Sing, David K.; López-Morales, Mercedes +10 more
The magnetosphere of an exoplanet has yet to be unambiguously detected. Investigations of star-planet interaction and neutral atomic hydrogen absorption during transit to detect magnetic fields in hot Jupiters have been inconclusive, and interpretations of the transit absorption non-unique. In contrast, ionized species escaping a magnetized exopla…
Estimate of the carbon footprint of astronomical research infrastructures
Hughes, Annie; Martin, Pierrick; Knödlseder, Jürgen +4 more
The carbon footprint of astronomical research is an increasingly topical issue with first estimates of research institute and national community footprints having recently been published. As these assessments have typically excluded the contribution of astronomical research infrastructures, we complement these studies by providing an estimate of t…
Frontiers in accretion physics at high X-ray spectral resolution
Díaz Trigo, M.; Cappi, M.; Done, C. +14 more
Microcalorimeters have shown remarkable success in delivering high-spectral-resolution observations of the hot and energetic Universe, and have paved the way to revolutionary new science possibilities in X-ray astronomy. There are several research areas in compact-object science that can only be addressed with energy resolution ΔE ≲ 5 eV at photon…
Observation and origin of non-thermal hard X-rays from Jupiter
Mori, Kaya; Branduardi-Raymont, Graziella; Nynka, Melania +10 more
Electrons accelerated on Earth by a rich variety of wave-scattering or stochastic processes1,2 generate hard, non-thermal X-ray bremsstrahlung up to ~1 MeV (refs. 3,4) and power Earth's various types of aurorae. Although Jupiter's magnetic field is an order of magnitude larger than Earth's, space-based telescopes have previou…