PPT-Polarisation across the H-R Diagram

Daniel Cotton UNSW with Jeremy Bailey Lucyna KedzioraChudczer Kimberly Bott amp Jonty Marshall II III IV V Overview Polarisation Basics Stellar Polarimetry History Why do people care about polarisation now Exoplanets . INF 123 – Software architecture. tdebeauv@uci.edu. 1. Outline. Reminders. Flowchart. State machine. Sequence diagram. Component diagram. Class diagram. 2. Reminders. 3. Reminder. Many diagrams can represent the same architecture. Polarisation. show an understanding that . polarisation. is a phenomenon . associated . with. . transverse. . waves. Using polarising filters to observe polarisation . effects. look . through them at light sources (a lamp, the . macroscopic (average) electric field. inside matter when an external . E. field is applied?. How is charge displaced when an electric field is applied? i.e. what are . induced currents and densities. - total electric vector is a straight line at an anglegiven by tan) - linearly polarised(2m+1) = E - circularly polarisedAnything else - elliptically polarised lightAll described by the locus of the (not examinable). BB84 . protocol (simplified). Alice sends a sequence of photons to Bob, each polarised in one of several directions. If Eve eavesdrops on some of them, they may randomly change their direction of polarisation. Bryan Gaensler. , Tom Landecker, Russ Taylor. and the POSSUM team. askap.org. /possum. New Discovery Space with ASKAP-12. Radio polarimetry: a highly sensitive probe of density, magnetic field and turbulence at all redshifts. Electric susceptibility. Displacement field in matter. Boundary conditions on fields at interfaces. What . is the . macroscopic (average) electric field. inside matter when an external . E. field is applied. polarised. emission in X-ray binaries. Dave Russell. New York University Abu Dhabi. dave.russell@nyu.edu. In collaboration with T. ariq . Shahbaz. (IAC, Tenerife). I’d also like to thank Rob Fender, Elena Gallo, . Chen Model. Entity. represented by a rectangle with its . name in capital . letters. .. Relationships. represented by an active or passive . verb inside the diamond . that connects the related entities. BPA. What is UCD?. A use case is a set of . scenarios. that describing an . interaction . between. a user . and. a system. .  . What. a system does…rather than . how . a system does. A use case diagram . Positions 1, 2, and 3 in the diagram represent the noon Sun above the horizon on three different days during the year, as viewed from Binghamton, N Y. At which position was the noon Sun providing Binghamton with the greatest insolation ZAPI LUXE153Diagram 151234678Diagram 1Diagram 3Diagram 2 . Large . Interstellar Polarisation . Survey. Stefano . Bagnulo. , Nikolai . Voshchinnikov. , Nick Cox (PI). Dust extinction, emission & . polarisation. . in the diffuse ISM. Simultaneously . model :. construction for . the System . K. 2. O-Al. 2. O. 3. -SiO. 2. amorphous silica. quartz. gibbsite. Where is Si?. Where is Al?. Which should be . more soluble?. By how many . orders of . magnitude at .