S-Process Deficiencies in Low-Mass Supergiant Variables

Atmospheric dynamics and the mass loss process in red supergiant stars

Context. Red supergiant stars represent a key phase in the evolution of massive stars. Recent radiative hydrodynamic simulations suggest that their atmospheres may be the location of large-scale convective motions. Aims. As supergiant convection is expected to generate supersonic motions and shocks, we seek constraints on these atmospheric motions and their possible relation with mass-loss rate...

s-Process Nucleosynthesis in Low-Metallicity Stars

Nobuyuki IWAMOTO1,∗, Toshitaka KAJINO, Grant J. MATHEWS, Masayuki Y. FUJIMOTO and Wako AOKI National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan The Graduate University for Advanced Studies, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan Center for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA Department of Physics, Hokkaido Univ...

Accretion in supergiant High Mass X-ray Binaries

Supergiant High Mass X-ray Binary systems (sgHMXBs) consist of a massive, late type, star and a neutron star. The massive stars exhibits strong, radiatively driven, stellar winds. Wind accretion onto compact object triggers X-ray emission, which alters the stellar wind significantly. Hydrodynamic simulation has been used to study the neutron star stellar wind interaction it two sgHMXBs: i) A he...

Protein S antibodies in acquired protein S deficiencies.

Spotting Terminology Deficiencies in Process Model Repositories

Thinking in business processes and using process models for their documentation has become common practice in companies. In many cases this documentation encompasses more than thousands of models. One of the key challenges is the realization of consistency of the used terminology. Especially, the usage of synonym and homonym words is one of the most severe problems for terminological consistenc...