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115 papers · 1 filter
Three-dimensional continuum radiative transfer of polarized radiation in exoplanetary atmospheres
Moritz Lietzow, Sebastian Wolf, Robert Brunngräber
Polarimetry is about to become a powerful tool for determining the atmospheric properties of exoplanets. To provide the basis for the interpretation of observational results and fo…
GD424 -- a helium-atmosphere white dwarf with a large amount of trace hydrogen in the process of digesting a rocky planetesimal
Paula Izquierdo, Odette Toloza, Boris T. Gänsicke +5
The photospheric metal pollution of white dwarfs is now well-established as the signature of the accretion of planetary debris. However, the origin of the trace hydrogen detected i…
Non-equilibrium brain dynamics as a signature of consciousness
Yonatan Sanz Perl, Hernan Bocaccio, Ignacio Perez-Ipina +5
The cognitive functions of human and non-human primates rely on the dynamic interplay of distributed neural assemblies. As such, it seems unlikely that cognition can be supported b…
Unconsciousness reconfigures modular brain network dynamics
Sofia Morena del Pozo, Helmut Laufs, Vincent Bonhomme +3
The dynamic core hypothesis posits that consciousness is correlated with simultaneously integrated and differentiated assemblies of transiently synchronized brain regions. We repre…
Electromagnetic ion cyclotron instability stimulated by the suprathermal ions in space plasmas: A quasi-linear approach
S. M. Shaaban, M. Lazar, R. Schlickeiser
In collision-poor space plasmas protons with an excess of kinetic energy or temperature in direction perpendicular to background magnetic field can excite the electromagnetic ion c…
Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83
E. González Egea, R. Raddi, D. Koester +8
Spectroscopic observations of white dwarfs reveal that many of them are polluted by exoplanetary material, whose bulk composition can be uniquely probed this way. We present a spec…