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Using Molecular Gas Observations to Guide Initial Conditions for Star Cluster Simulations
Alison Sills, Steven Rieder, Anne S. M. Buckner +3
The earliest evolution of star clusters involves a phase of co-existence of both newly-formed stars, and the gas from which they are forming. Observations of the gas in such region…
Early-Forming Massive Stars Suppress Star Formation and Hierarchical Cluster Assembly
Sean C. Lewis, Stephen L. W. McMillan, Mordecai-Mark Mac Low +8
Feedback from massive stars plays an important role in the formation of star clusters. Whether a very massive star is born early or late in the cluster formation timeline has profo…
Bright X-ray Pulsars: how outflows influence beaming, pulsations and pulse phase lags
Alexander A. Mushtukov, Simon Portegies Zwart
Extreme accretion in X-ray pulsars (XRPs) results in radiation-driven outflows launched from the inner parts of the accretion disc. The outflows affect the apparent luminosity of t…
The paradox of infinitesimal granularity: Chaos and the reversibility of time in Newton's theory of gravity
Simon Portegies Zwart, Tjarda Boekholt
The fundamental laws of physics are time-symmetric, but our macroscopic experience contradicts this. The time reversibility paradox is partly a consequence of the unpredictability…
Statistical features of multiple Compton scattering in a strong magnetic field
Alexander A. Mushtukov, Ivan D. Markozov, Valery F. Suleimanov +4
Compton scattering is a key process shaping spectra formation and accretion flow dynamics in accreting strongly magnetized neutron stars. A strong magnetic field affects the scatte…
Revisiting Common Envelope Evolution -- A New Semi-Analytic Model for N-body and Population Synthesis Codes
Alessandro Alberto Trani, Steven Rieder, Ataru Tanikawa +5
We present a novel way of modeling common envelope evolution in binary and few-body systems. We consider the common envelope inspiral as driven by a drag force with a power-law dep…