PPT-On the Tilt of Gaseous and Stellar Disks Around the Galacti

Mark Morris UCLA ABSTRACT The welldefined massive disk of young stars orbiting within 05 pc of the Galactic black hole GBH is strongly tilted with respect to the Galactic plane In the context of in situ formation mechanisms this orientation is inherited from that of the gas disk that formed these stars on the order of 6 million years ago The tilt can be understood by positing that clouds fall toward the GBH on nearzero angular momentum orbits and form dispersion rings as they selfintersect after . . atmospheres. a . very. . short. . introduction. Part I. Ewa Niemczura. Astronomical. . Institute. , . UWr. eniem@astro.uni.wroc.pl. Stellar. spectra. Stellar. spectra. One picture is worth 1000 words, but . Patricia . Sánchez-Blázquez. (UAM). Jairo. Mendez-Abreu (IAC). Sebastian F Sánchez (UNAM). Isabel Perez (UGR). Fabian Rosales-Ortega (UAM). And . the CALIFA collaboration. Resolved stellar . population. Giuseppina. . Battaglia. Instituto. de . Astrofisica. de Canarias, Tenerife. Credit. : ESO/. H.H.Heyer. Credit. : ESO/L. . Calçada. Karachentsev. et al. 2014. Individual . Red . Giant Branch . stars. 1. /28. Important for transits (see next slides).. . Transit depth = [ . R. planet. (. λ. ,t. ) / . R. star. (. λ,t. ) ]. 2. Not so important for eclipses because the eclipse is a simple difference, and the stellar variability typically is slower than the eclipse: . Phil Armitage. Colorado. Processes in Protoplanetary Disks. Disk structure. Disk evolution. Turbulence. Episodic accretion. Single particle evolution. Ice lines and persistent radial structure. Transient structures in disks. Noelpratt. . Tilt-sift Photo. Tilt–shift photography. is the use of . camera movements. on small- and medium-format cameras, and sometimes specifically refers to the use of tilt for . selective focus. Key variable is . mass. of star. directly measured only for binary stars, but it determines position on main sequence. Cluster ages. Main-sequence luminosity increases . much. faster than mass. therefore massive stars use up their fuel much faster. Phil Armitage. Colorado. Motivation. What can we directly observe?. Dust. m. m-mm. Gas – . emission &. kinematics. (CO other. molecules, . H. 2. hard). Limited. direct . time . dependence. Evolution. Insights from recent surveys. Gaspard . Duchêne. (UC Berkeley, Obs. Grenoble). © NASA/JPL/Caltech. Planets in multiple systems?. © . LucasFilm. Ltd.. They must exist!. Planets in multiple systems!. JEFFREY HALL. LOWELL OBSERVATORY, FLAGSTAFF, AZ. Project Timeline. 1988 1992 1996 2000 2004 2008 2012 . Construction/early observing. Rebuild 1. Broad survey. Solar analog survey. Rebuild 2. A/D boundary. Reads and writes are equally fast.. Arrays of these disks are used to provide highly reliable storage.. Increasingly popular as they are fast and do not contain moving parts.. Magnetic Disks.. . What is a magnetic disk and how it works. Two main types: Magnetic and Optical. Random access to memory. The hardware must be controlled by driver software called the “controller” in order to be used. Hard Disks, RAID, and Error Handling. life appearance conditions. Call of interest. Hyper-Emblematic. project. P2IO. Expression of interest . Stellar and Planetary Formation . Keywords:. Structure and dynamics, Radiation, Magnetic fields,. V. . Peskov. CERN. Topics to be covered:. History of detectors of photons and charged particles. Main designs of gaseous detectors. Characteristics and physics of operation. Applications. Modern detectors of photons and charged particles can be classified into four main categories: vacuum, gaseous, liquid and solid–state..