... ABSTRACT From the equivalent widths ( ) of the selected Fell and Till lines the peculiarity indices P(FeII) and P(TiII) are determined for 70 normal B8-A8 stars of III-V luminosity classes and for 95 magnetic chemically peculiar (CP) B3-A8 stars. For normal stars all the P(FeII) and P(TiII) indices are within the limits of 0.5-1.7. ... They approach the values from >2 to 10-13 for the hot (He-weak), Si 4200 and Hg, Mn stars (Sp B3-B8, 18000 12000 K) , b) . ...

... The dependence of velocity ellipsoid parameters for various types stars upon theirage was investigated. ... For metal-rich stars ([Fe/H] -0.1) the shape of velocity ellipsoid becomes more spherical with increasing age of the stellar group and it approaches the equilibrium shape. ... По данным uvby -фотометрии, изохронным возрастам и собственным движениям ~3500 F -звезд диска в окрестности 80 пс от Солнца исследованы зависимости параметров эллипсоидов скоростей различных звезд от возраста. ...

... Bojan Nikolic web pages (r. 329) . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Inference of Coefficients for Use in Phase Correction . ... Simulating Atmospheric Phase Errors, Phase Correction and the Impact on ALMA Science . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

... Recent developments in the application of the theory of line formation, joined to the increased sensitivity of instrumental techniques, augmented the number of observable quantities related to the magnetic fields of such a class of stars. ... Through the formalism of the spherical tensorial calculus, analythical formulae for most of the observable quantities are provided for a magnetic field of arbitrary complexity. ...

... JWST . ... JWST will provide unprecedented stability to aperture masking, which should enable an order of magnitude better contrast than ground-based masking, in addition to a far lower thermal background. (click here for the abstract) . Reference: Greenbaum, A. G. , Johns Hopkins University, Co-authors: Laurent Pueyo, Anand Sivaramakrishnan, Sylvestre Lacour, 2015, ApJ, 798, 68 . ... Reference: Henry Lin , Harvard, Co-authors:- Gonzalo Gonzalez Abad and Abraham Loeb 2014, ApJ, 792, L7 . ...

... Vinay Kashyap and Jeremy Drake . ... We describe a Markov-Chain Monte-Carlo process using a Metropolis algorithm to derive Differential Emission Measures (DEMs) and element abundances from EUV line fluxes. ... These 8 files all use the Ov applet. f1QFlRay.htm - Active Region Emission Measures, Feldman et al. abundances, Raymond ion balances . ... 154, The Tenth Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun , eds. R.A. Donahue & J.A. Bookbinder (San Francisco: ASP), 844 . ...

... Structure of superconducting TlBa 2 (Ca 0.87 Tl 0.13 )Cu 2 O 7 single crystals with T c =80K. Abstract: . The crystal structure of single crystals of the 1212 phase in the system TL-Ba-Ca-Cu-O has been determined: a =3,8472(5), c =12,721(3) Angstrom, sp.gr. ... The chemical formula of this phase has been refined: TlBa 2 (Ca 0.87 Tl 0.13 )Cu 2 O 7 , T c =80 K, Meissner effect is 75-80%. ...

... Theoretical investigation was carried out of electron transport phenomena in superconducting heterostructures S-MB-N and S-MB-S with magnetic barriers (MB) determined by monolayer of ferromagnet (F) or spin-valve structures FNF or FIF (N is a normal metal, I is insulating layer). ... The I-V characteristics of cuprate bicrystal Josephson junctions have been experimentally investigated at different temperatures, barrier transparency factors and the phase difference of superconducting electrodes. ...

... Keywords: Proper Motions, Schmidt Plates, Astrometry, Guide Star Catalog, Palomar Sky Survey . In this paper we describe a program of determining proper motions from digitized scans of 1950's-era Palomar Sky Survey (POSS) Schmidt Plates and 1980's-era Palomar Oschin Schmidt `Quick V' plates that were taken for the Hubble Space Telescope ( HST ) Guide Star Catalogue. ... Arrows indicate the magnitude and direction of the proper motion for the stars. ...

A full explanation of the motion of trapped particles would be too abstract and mathematical for this level, but some basic ideas may be described on an intuitive level. The magnetic force on a moving particle is always perpendicular to the motion, as well as to the magnetic field lines. That is why the basic pattern is motion in a circle, around a magnetic field line. ... The best-known periodic motion is the back-and-forth swing of a pendulum, say of a weight suspended by a string (drawing). ...

MATHEMATICAL MODELING: . ... This model is developed on the base of the probabilistic description of the collisional aeronomical processes and is realized on a computer as the numerical system (stochastic model). ... Shematovich, V.I., Bisikalo , D.V.             Nonequilibrium processes in the planetary and cometary atmospheres. ... In Russian) . ... Piarnpuu , A. A.; and Shematovich, V. I.       Construction of structural stochastic models of collision processes in rarefied gas media (abstract) . ...

... Abstract . We have observed CO J=1-0 and J=2-1 emission in a cloud known to contain H I Self Absorption (HISA) (Gibson et al. 2000) in Perseus ( l ~= 1°, b ~= 139°) in order to determine the molecular gas fraction and the evolutionary state of the cloud. ... Student abstract . Les r sum s diffus s sur la page web de la CASCA 2002 sont sujets des modifications, de fa on les conformer aux standards de pr sentation HTML et au r pertoire de caract res typographiques disponibles. ...

Trudy GAISH, vol. LXV, 1996 . Abstracts . The global distribution of average (5 O x 5 O ) depths . of Mohorovicic discontinuity on the Earth . ... Such analysis allows detecting whether the sources of the largest anomalies reside within the Earth's core. This is possible if the limit depths of the sources exceed the depths of the core-mantle boundary. ... by Pasinok S.L. Influence of the Earth’s cover on the polar free oscillation of the Earth’s inner core is considered. ...

... 1) Dipartimento di Astronomia e Scienza dello Spazio, Universit di Firenze, Largo E. Fermi, 5, I-50125 Firenze, Italy . 2) Osservatorio Astrofisico di Arcetri, Largo Enrico Fermi 5, I-50125 Firenze, Italy . 3) Istituto Istituto Nazionale di Ottica, Largo E. Fermi, 5, I-50125 Firenze, Italy . We present a characterization of two narrow band filters commonly used in Infrared Astronomy. ...

A CCD BASED DIGITAL DETECTOR FOR WHOLE-BREAST DIGITAL MAMMOGRAPHY . ... In the digital system the light photons are transferred onto a charge-coupled device (CCD) by a demagnifying fiber optic taper. ... 2 Detector Design . The detector design, as shown in Figure 1, involves the conversion of x-ray photons into visible photons by a phosphor screen held in contact with the large end of a demagnifying fiber optic taper. ... Figure 1. (a) (b) . ... 3 Detector Characterization and Imaging Results . ...

Find Similar Abstracts . ... Magnetic fields in astrophysics . ... Astrophysics . ... ASTROPHYSICS, DYNAMO THEORY, INTERSTELLAR MAGNETIC FIELDS, MAGNETIC FIELDS, MAGNETOHYDRODYNAMICS, STELLAR MAGNETIC FIELDS, ACCRETION DISKS, BLACK HOLES (ASTRONOMY), COSMOLOGY, FARADAY EFFECT, MAGNETIC CLOUDS, MAGNETIC MONOPOLES, MAGNETOHYDRODYNAMIC FLOW, MAGNETOHYDRODYNAMIC TURBULENCE, MILKY WAY GALAXY, PULSARS, ROTATING FLUIDS, SOLAR MAGNETIC FIELD, STELLAR ACTIVITY, STELLAR EVOLUTION, TOPOLOGY, ZEEMAN EFFECT . ...

Geophysical Research Abstracts Volumi 3, 2001 . ... The observable lunar region was a seismic active region (30W, 5S). ... arcminutes long trip on the lunar surface in direction to Mare Serentatis. ... 23 Moon's phase angles and 1954 lunar regions. ... basin are compared to craters located in highland and mare regions. ... morphology of craters in the mare region is found to differ drastically from those in . ... and craters with faults in the mare region are due to lava flooding of ancient . ...

SOLAR POLARIZATION 5 ASP Conference Series, Vol. 405, c 2009 S. V. Berdyugina, K. N. Nagendra, and R. Ramel li, eds. Fine-scale Sto chastic Structure of Solar Magnetic Fields V. Chertoprud, B. Ioshpa, and V. Obridko Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, Russian Academy of Sciences, Troitsk, Moscow Region, 142190 Russia Abstract. ... The exponent H is 0.5­0.7 for the active region magnetic fields and 0.1 for the background field. ...

... In spite of the good potential possibilities, some of the station "Dnepr" design characteristics did not allow us to apply the usual special IS radar measurement methods. ... Thus for IS signal measurements at the "Dnepr" station, we have developed special methods for recording and processing IS signals in order to determine plasma ionospheric parameters. ... Equations (4-5) from the basis for data post processing to obtain ionosphere parameters. ...

... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), a body moving in a planet atmosphere, aerodynamic loads, the forces of inertia, heat flux, ablation, the Lam? equations, the nature of the destruction of the body , the altitude of destruction for well-known meteoroids, composition and space velocities, flight of small fragments , thermoelastic forces , the process of destruction , the fragment's size , the ...