Abstract -- Calculations are performed for the linear polarization of starlight due to extinction by aligned dust grains when the starlight traverses a medium with irregular magnetic fields. This medium is intended to represent the optically thick components of interstellar clouds which are observed to make little, if any, contribution to the polarization of starlight. ...

Main research interests: . 1) Structure and geometry of the circumnuclear medium of AGN, particularly through hard X-ray observations of obscured sources. ... 3) Physics of Ultraluminous Infrared Galaxies (ULIRGs): analysis of the AGN and starburst components through hard X-ray and infrared (with ground-based 3-5 micron spectroscopy, and with Spitzer in the 5-30 micron band) imaging and spectroscopy. ...

Is the ozone layer recovering ? ... Global Regulation Global Regulation · · · · 1985: Vienna Convention 1987: Montreal Protocol Several amendments and adjustments Quantity for (chemical) ozone depletion of ODS: EESC (Equivalent Effective qu ect Stratospheric Chlorine): Weighting over release and ozone depletion of individual ODS EESC for mid-latitudes http//:www.wmo.ch/web/arep/reports/ozone_2002/q&as.pdf, Seite Q.29 1980 1990 2000 2010 2020 2030 2040 2050 2060 2070 2080 2090 2100 3. ...

... Iron abundance in the atmospheres of components of the binary system 41 Draconis . ... 5B Iron abundances, FeI and FeII lines equivalent widths, and microturbulence velocities were found for the components of a highly eccentric spectroscopic and interferometric binary system 41 Dra from high resolution spectra obtained close to the periastron. Weighted mean values of iron abundances in the atmospheres are lgN(Fe) = 7.66 ± 0.03 and lgN(Fe) = 7.72 ± 0.03 for the component a and b, correspondingly. ...

Authors: V.A. Marsakov , Yu.G. Shevelev , . Journal: 1988, Astron Zh. ... Absolute magnitudes, metallicities, effective temperatures, surface gravities, distances, and tangential velocities are calculated for 5498 F stars with homogeneous data on uvby photometry and proper motion, and placed within 80 pc from the Sun. Components of space velocities, eccentricities of galactic orbits, perigalactic and apogalactic distances, and maximal remotness from galactic plane are presented for 1787 stars. ...

home education . SEARCH ASP SITE: Match ALL words Match ANY word . ... SEED Grants to Scientists . ... The ASP SEED Grant program supports the ASP's mission to advance science and science literacy through astronomy by encouraging active researchers to engage in public outreach, K-14 formal education, or informal education programs or activities. ... Development, use, and dissemination of a well-illustrated college-level presentation on a specific topic or problem in current research . ... search . ...

... Mass ratio of SS433 components is q = M X / MV = 0.2 В 0.3 . ... The spectum corresponds to precessional moment T3, i.e. when the angle between jet axis and the line of sight is equal 60 degrees. 10 -2 10 -3 lg I, phot/cm2/sec/keV 10 -4 10 -5 10 100 lg h, keV Cherepashchuk A.M.,Sunyaev R.A., Fabrika S.N., Postnov K.A. et al./ ... 5 10 100 Tcor = 20keV lg h, keV Mjet = 21020 g / s Lk = 61039 erg / s Angle dependence of SS433 spectrum In the figure the angle dependence for SS433 spectrum is shown. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Brief History of Rocket and Space Technology . ... Flights Chronology . ... ISS Russian Segment . ... History of flights . ... History of Manned Flights | ... The MIR Station has become a peculiar flight site for real-time validation of many technical solutions and production processes used on the International Space Station. ... Contribution of RSC Energia to the Russian Rocket-Space Technology ....

... Астронет | ... MODEL OF LAMINAR CONVECTION IN SOLAR TYPE STARS . ... DENSE CORES AND OUTFLOWS IN REGIONS OF HIGH MASS STAR FORMATION . ... STAR FORMATION IN GALAXIES . ... EVOLUTION OF ISOLATED NEUTRON STARS IN GLOBULAR CLUSTERS: NUMBER OF ACCRETORS . ... THE RELATIONSHIP BETWEEN GAS, STARS AND STAR FORMATION: GIANT COMPLEXES OF MULTIPLE HI AND HII SHELLS IN THE IRR GALAXY IC 1613 . ... TWO-COMPONENT KINEMATICS OF THE INTERSTELLAR MEDIUM AROUND RICH OB ASSOCIATIONS AND TRIGGERING STAR FORMATION . ...

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

... 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 se