Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic . It is now evident that observed interstellar extinction cannot be explain using particles of only one kind. ... The intensity of radiation after passing a dust cloud is equal to . ... The interstellar extinction is . ... Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic root 2003-04-09 ...

New lUE observations of the reflection nebula IC 435 are presented, and the scattering properties of the nebular dust grains are derived. ... The UV observations plus optical data from the literature determine the most likely star-nebula geometry, the nebular dust density distribution, and the values of the albedo and the phase function asymmetry for the dust grains. ... ADS Citation Query . citations = 51 . citations vs. year [year,citations] . ...

Fortran 90 properties already in CF77 . ... Only the old form (fix form) of the source code is available. ... LOGICAL Default KIND number = 8 INTEGER Default int7 int15 KIND number = 6 1 2 digits = 46 7 15 radix = 2 2 2 range = 13 2 4 huge = 70368744177663 127 32767 bit_size = 46 8 16 INTEGER int31 int46 int64 KIND number = 4 6 8 digits = 31 46 63 radix = 2 2 2 range = 9 13 18 huge = 2147483647 70368744177663 9223372036854775807 bit_size = 32 46 46 REAL half Default,single double KIND ...

... A top-level object used to access Java classes from within JavaScript code. ... The java , netscape , and sun properties represent the packages java.*, netscape.*, and sun.* respectively. ... For example, you can access a constructor of the Frame class as follows: var theFrame = new Packages.java.awt.Frame(); For convenience, JavaScript provides the top-level netscape , sun , and java objects that are synonyms for the Packages properties with the same names. ... Any class in the Java package sun.* ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... It has been largely superceded by MatWeb . Conversion Factors . Material properties . Physical constants . Astronomical constants . This table gives conversion factors to convert various units to their SI equivalents. ... The units are SI. This is a short list of physical constants in SI units. ... Boltzmann constant . ... Gas constant . ... Mass . ... Plank's . ... Radiation constant . ... This is a short list of astronomical constants in SI units. ... Sun . ...

... Ionization Properties of the Dusty Mesosphere . Boris A. Klumov, Sergey I.Popel Institute for Dynamics of Geopsheres, Russia . ... The problem of influence of the dynamics and charging of dust particles on the ionization properties of the polar summer mesosphere is considered. ... We introduce the notion "dusty mesosphere" for the layer of the mesosphere at the altitudes of approximately 80-90 km, where the conditions for the nucleation and formation of macro (dust) particles are fulfilled. ...

Polarization properties of two pulsars R. N. Manchester (ATNF, CSIRO, Australia) . ... Abstract Mean pulse polarization properties at 1.4, 4.6 and 8.3 GHz and rotation measures are presented for two pulsars with unusually wide profiles. PSR J0437-4715 is a millisecond pulsar with significant emission over at least 80% of the pulse period. It shows a complicated variation of linear position angle across the pulse indicating substantial departures from a dipole field structure. ...

... ICND-96, Saratov, Russia. ... And though a number of efficient methods of digital sound compression is developed by far, there is still a need in new efficient methods. In this report we study a possibility of application of fractal methods to compression of speech signals. ... In this method, a speech frame is divided into larger pieces called domains, and smaller ones called regions, and an optimal set of affine transformations of domains into regions is calculated. ...

... 1) Our CAS system will store the catalogues. ... Each catalogue should contain one or more tables. 2) The names of the catalogues should be unique, as well as the the names of tables of the SAME catalogue. ... 4) All the metadata about the CAS system, its tables, catalogues should reside in separate schema (currently "cas_metadata"). 1) The main system table of CAS is the table "catalog_list". ... short info (column "info") . ... 2) The second system table of CAS is the table "table_list". ...

... At the simplest level of modelization, these phenomena are described by reaction-diffusion equations. The theory of this type of equation is far away from being fully understood but one can give however several results providing in some cases existence of solutions and their qualitative behaviour. ... Reaction-diffusion equations. ... Theory of uniformly elliptic equations: existence, regularity, Schauder theory, Agmon-Douglis-Nirenberg theory, Harnack estimates, boundary Harnack principle. ...

... Emission Line Properties of AGN from a post-COSTAR FOS HST Spectral Atlas" . ... Emission line measurements: - FORMAT , and DATA . ... Evidence for a Strong NV/CIV Correlation Between Emission and Absorption Lines in AGN" . ... Emission Line Properties of AGN from a pre-COSTAR FOS HST Spectral Atlas" . ... The Hubble/ROSAT Continuum and Ultraviolet Line Emission Study (H/RCULES) of AGN enables characterization of: . Spectral energy distributions from X-ray to Radio. ... Emission line properties. ...

... Physical Properties of Crystals . ... The course is an introduction into crystal physics and consists of two introductory parts devoted to the basics of crystallography and tensor analysis and six main chapters in which the physical phenomena in anisotropic medium are described by the example of the elastic, electrical and magnetic crystal properties. The effect of symmetry is also discussed. ... Effect of symmetry on crystal properties. ... Effect of symmetry on crystal optical properties. ...

... Science . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Properties of kinematically decoupled structures in Early-Type Galaxies . ... Science Users Information . ... ESO-MIDAS . ... ESO Science Newsletter . ... The project consists in measuring the stellar kinematics, stellar populations, dynamics, and morphological properties of the kinematically decoupled structures observed in the inner regions of Early-Type Galaxies. ... Return to list of thesis topics...

... The properties of the currently available receivers are given in Table 3 . The columns of the table give the receiver name, frequency range, the typical System Temperature (T ), Gain, System Equivalent Flux Density (SEFD) and Half Power Beamwidth (HPBW) for zenith angles below 15 (as measured by Arecibo staff.) ... Full details of the ALFA observing system, its performance, how to join an ALFA Consortium, and the latest ALFA news is to be found via, http://www.naic.edu/alfa/ . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Open symbols refer to data available in the literature. ... The best-fit lines correspond to the exponential-linear relation discussed in Sect. ... We present a new extensive analysis of the old problem of finding a satisfactory calibra- tion of the relation between the geometric albedo and some measurable polarization properties of the asteroids. To achieve our goals, we use all polarimetric data at our disposal. ...

... The sky distribution of the BCGs from the HSS sample is shown in Fig. 6 together with BCGs from the SBS and Case surveys (Izotov et al. [ 1993b ]; Pustilnik et al. ... First, we compare the apparent magnitude distributions of the three samples. ... The similar behaviour of the faint end of the apparent magnitude distributions infers that the Northern BCG sample may have a similar completeness down to this limiting magnitude. ...

... By taking advantage of atomic hydrogen (HI) observations obtained as part of the GALEX Arecibo SDSS and ALFALFA surveys, I will demonstrate that the combination of deep, targeted observations and spectral stacking of blind, large-area shallow surveys is critical in order to characterize how the gas content of galaxies depends on their structure, star formation activity and environment. ...

... We have developed a method of creating statistically-isotropic non-Gaussian maps of CMB temperature fluctuations. The code for creating simulations for both the full sky (using the Healpix pixelisation scheme) and for the flat-sky can be downloaded now. Code for full sky simulations . ... and cite Rocha et al. (2004), preprint astro-ph/0406136 , published 2005, MNRAS, 357, 1-11, by `Graca Rocha, M.P. Hobson, Sarah Smith, Pedro Ferreira and Anthony Challinor', 2004. home | ... Graca Rocha . ...

... Mathematical methods in physics . ... NUCLEAR PHYSICS . ... CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES . ... Mechanical and acoustical properties of condensed matter . ... Thermal properties of condensed matter . ... CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES . ... Electronic transport in condensed matter . ... Optical properties, condensed-matter spectroscopy and other interactions of radiation and particles with condensed matter . ...