Crystallographic study of the transition in Ti sub 2 O sub 3.
Titanium oxide lattice parameter changes in 390 to 470 K range studied by X ray crystallography, noting correlation of distension with resistivity changes
Honig, J. M.↗
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Nature of the electrical transition in Ti sub 2 O sub 3.
Electrical, optical, magnetic and structural properties of titanium oxide, stressing transition difference with vanadium oxide
Honig, J. M.↗
Crystallography and defect chemistry of solid solutions of vanadium and titanium oxides
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Honig, J. M.↗
Planet Formation Imager (PFI): Science Vision and Key Requirements
The Planet Formation Imager (PFI) project aims to provide a strong scientific vision for ground-based opticalastronomy beyond the upcoming generation of Extremely Large Telescopes. We make the case that a break-through in angular resolution imaging capabilities is required in order tounravel the processes involved in planetformation. PFI will be optimised to provide a complete census of the protoplanet population at all stellocentricradii and over the age range from 0.1 to∼100 Myr. Within this age period, planetary systems undergo dra-matic changes and the final architecture of planetary systems is determined. Our goal is to study the planetarybirth on the natural spatial scale where the material is assembled,which is the “Hill Sphere” of the formingplanet, and to characterise the protoplanetary cores by measuring their masses and physical properties. Ourscience working group has investigated the observational characteristics of these young protoplanets as well asthe migration mechanisms that might alter the system architecture. We simulated the imprints that the planetsleave in the disk and study how PFI could revolutionise areas ranging from exoplanet to extragalactic science.In this contribution we outline the key science drivers of PFI and discuss the requirements that will guide thetechnology choices, the site selection, and potential science/technology tradeoffs.
Stefan Kraus↗