Toward a Quantitative Interpretation of MidIR Spectra of Galaxies B. Nikolic (NRAO), P. Alexander (Cambridge), M. Clemens (Padova), D. Ford (Cambridge), G. Cotter (Oxford), M.S. Longair (Cambridge) The Method Starburst99 + Comprehensive dust model + Simple radiative transfer Allows investigation of the effects of starburst age, metallicity, IMF etc. ... Appropriate for midIR models since only UV/optical photons are important in exciting the emission. ...

Hide Zen home . ... sncat2sntab.pl - convert old catalog to table sn . ... CREATE TABLE cats ( id integer PRIMARY KEY, name text ); -- a list of properties of galaxy CREATE TABLE properties ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy _property ( gid integer REFERENCES galaxy (id), pid integer REFERENCES properties(id), value float, UNIQUE( gid ,pid) ); CREATE t=# select * from galaxy; id | ...

... Peter B. Mozhaev , Ph.D. Complicated crystal structure and anisotropy of physical properties of the high critical temperature superconductors (HTSC) makes difficult reproducible fabrication of the multilayered epitaxial heterostructures of HTSC with necessary parameters. ... The goal of this project is study of growth and formation of the multilayer epitaxial heterostructures of HTSC of the ReBa 2 Cu 3 O x family (ReBCO, where Re is the rare earth element). ...

Modern Dynamic Methods of Determination of Parameters of Meteor Bodies . ... The study takes an approach in modelling the fireballs' mass and other properties from the rate of body deceleration in the atmosphere as opposed to conventionally used luminosity. An analytical model of the atmospheric entry is calculated for registered fireballs using published observational data and evaluating parameters describing drag and ablation of meteors and bolides along the luminous segment of the trajectory. ...

... 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. ...

... 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. ...

... Hierarchy and stability 3. Stability criteria for triple systems 4. ... The results for selected systems with weak hierarchy (physical properties of components) System HD 40887 AB+CD HD 76644 AB+CD HD 217675 AB+CD HD 222326 A?+BC HD 284419 A+BC Spectral types K5V, M0V, K4V, ?? ... More accurate results for selected systems HD 217675/6 ( And) Quadruple system More accurate results for selected systems HD 217675/6 Pair B1B 2 More accurate results for selected systems HD 217675/6 (Zhuchkov et al. ...

. ___________________________________________________________________ The Electronic Universe Project e-mail: nuts@moo.uoregon.edu

... Mishchenko M.I., Dlugach Zh.M., Zakharova N.T. Direct demonstration of the concept of unrestricted effective-medium approximation. ... Dlugach J.M., Mishchenko M.I. Effects of nonsphericity on the behavior of Lorenz-Mie resonances in scattering characteristics of liquid-cloud droplets. ... Mishchenko M.I., Dlugach J.M., Yanovitskij E.G. Multiple light scattering by polydispersions of randomly distributed, perfectly-aligned, infinite Mie cylinders illuminated perpendicularly to their axes. ...

Download Izmccd (~2.7 MB). Solution of problems at identification of star field. ... 2) Scale is not correct. ... In this case algorithm of identification will revise all values of scale from twice smaller up to twice greater. ... There should be more than value of the field "Number of stars in frame". ... The star field is considered identified if number of the identified stars more or equally to this value. It is necessary to set value from 4 up to value of field "Number of stars in frame". ...

... 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 . ...

... In this talk, I will discuss a study of the effect of ionization on the low end of HI mass function. The existence of a large population of low mass galaxies follows from CDM theory. ... HIDEEP found no low HI column density galaxies. One possible explanation is that the disks are "frozen". ... We assume that galaxies are exposed to an ionizing background radiation, from a uniform quasar distribution. ... We find a gap in the average column densities around N H which drops to 10 17 cm -2 . ...

Plasma models and main parameters. ... Magnetic diffusion. ... Double- adiabatic invariants for a plasma in strong magnetic field. One- fluid MHD. ... Frozen-in properties of magnetic field in plasma. ... Force- free magnetic field configurations. ... Dispersion of plasma waves in linear theory. ... Waves in non- magnetic plasma. ... Electromagnetic waves in plasma. ... Dispersion relation for waves in cold magnetized plasma. ... High- frequency electromagnetic waves in cold magnetized plasma. ...

... 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 . ...

... Комментариев нет 3 августа 2010, 23:15 Blogger , English , Астрономия . Dark Stars and Boosted Dark Matter Annihilation Rates. (arXiv:1008.0348v1 [astro-ph.CO]) : "Dark Stars (DS) may constitute the first phase of stellar evolution, powered by dark matter (DM) annihilation. ... Secondly, we study the dependence of DS properties on the concentration pa- rameter of the initial DM density profile of the halos where the first stars are formed. ...

... St Petersburg 23, September 2014 1 Motivation · Origin of Martian moons? ... Considered error sources: ­ Phobos a priori ephemerides; ­ Phobos a priori GM value; ­ measurements noise; ­ different strategies; · Methods: ­ real data analysis; ­ simulations. ... St Petersburg 23, September 2014 8 Simulations: sensitivity of the measurements to the a priori GM value Simulations: zero noise+ IMCCE a priori ephemerides +GMPH = 7.16 * 105 m3/sec2. ... St Petersburg 23, September 2014 14 Thank you! ...

... 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. ...

... 2006: . ... Components of the systems are low mass stars and white dwarfs. For 14 pairs orbit parameters were calculated and masses and luminosities of components were determined for the first time. ... As a result of a multifrequency monitoring of the variability of a micro quasar Cyg X-3 (X-ray binary system which probably consists of a black hole and a high mass Wolf-Rayet star) a high activity period was registered for the first time in the last 4 years. ... Archive . ...

КАТАЛОГ ВОЗРАСТОВ, МЕТАЛЛИЧНОСТЕЙ, ЭЛЕМЕНТОВ ОРБИТ И ДРУГИХ ПАРАМЕТРОВ БЛИЗКИХ F-ЗВЕЗД . ... В. Марсаков, Ю. Шевелев . ... Подробнее о методах вычисления возрастов и элементов орбит звезд см. в работах Марсаков & Шевелев (1993) и Марсаков & Шевелев (1994). ... A & A, 22, 255 // Первая цитата в статье . ... Первая цитата в статье . ... Марсаков В.А. & Шевелев Ю.Г. 1993, АЖ, 70,1218 // Первая цитата в статье . Марсков В.А. & Шевелев Ю.Г. 1994, АЖ, 71, 368 // Первая цитата в статье . ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...