... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

Spectropolarimetry and modeling of Galactic Wolf-Rayet star WR156 O LGA M A RY E VA Special Astrophysical Observatory RAS; olga.maryeva@gmail.com For the first time spectropolarimetric observations of Wolf-Rayet star WR156 (WN8h sub-class) were conducted. ... This polarization is, most probably, has an interstellar origin, as its magnitude and orientation are similar to the ones of field stars. ... By its parameters WR156 is similar to other WN8h stars, displaying the line effect. ...

... Three day radio-astronomical forecast of the proton activity of the Sun: The figure shows multiwave radio emission scans - graphs of the distribution of intensity I and circular polarization V across the solar disk, obtained at RATAN-600. ... According to this criterion, for a proton flare to arise, the flux of radio emission must be sufficiently high at short wavelengths (blue color scans) and should increase with time compared to the general intensity. ... More about the solar activity . ...

. ( < 10nm) . NAME CENTER(nm) FWHM(nm) TMAX(%) DIMENSIONS(mm) TRACES DATA . H-alpha 655.2 9.09 67.56 50x50x5 (1) (2) trace data . Hodge on/off H-alpha . (Not on-site at APO, but can be obtained on loan--contact Paul Hodge at UWash, hodge/astro.washington.edu) . UW-WSU Nebular Emission-Line Filters . (Not on-site at APO, but can be obtained on loan--contact Jeff Morgan at UWash, morgan/astro.washington.edu) . York narrow-band interference filter set . What to do with the trace data. APO Filters Homepage

HI Line Measurements of Eight Southern Pulsars . ... To derive their kinematic distances and to study the interstellar medium, we have measured 21-cm absorption and emission spectra in the direction of eight southern pulsars with the Parkes telescope . ... We present our absorption and emission spectra for these eight pulsars, derive kinematic distances and electron densities along their lines of sight where possible, and compare our results with previous work. ...

CORONAL METALLICITIES OF ACTIVE BINARIES Vinay Kashyap, Jeremy Drake, Deron Pease Harvard­Smithsonian Center for Astrophysics JЁ urgen Schmitt Max Planck Institut fЁ ur Extraterrestriche Physik SUMMARY We analyze EUV and X­ray data on a sample of X­ray active binary stars (HR 1099, – And, UX Ari, VY Ari, ё UMa, 44i Boo, and YY Gem) to determine coronal abundances. EUVE spectrometer data are used to obtain line fluxes, which are then used to determine Differential Emission Measures (DEMs). ...

... We present 7mm observations of the dusty disk surrounding the 10 Myr old 1.5 Msun pre-main-sequence star CQ Tauri obtained at the Very Large Array with 0.8 arcsecond resolution and 0.1 mJy rms sensitivity. ... We find that the disk radius is constrained to the range 100 to 300 AU, depending on the steepness of the disk surface density distribution. The power law index of the dust opacity coefficient, beta, is constrained to be 0.5 to 0.7. ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

... 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. ...

To a special Solar Physics issue on the Bastille Day Event: . ... Multi-scale temporal features of the 14 July 2000 meter-wavelength dynamic radio spectrum compared with TRACE data . ... Figure 1 (100 KB). SOHO/EIT (a) and LASCO/C2 (b) images show the region of the eruptive flare event of 14 July 2000 and related halo CME. ... Figure 2 (47 KB). ... Figure 3 (115 KB). Medium-scale dynamic spectrum (a), 204 MHz metric (b) and 3000 MHz microwave (c) profiles of the "Bastille Day" event. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... We present the numerical simulations for an electron-beam-driven and loss-cone-driven electron cyclotron maser (ECM) with different plasma parameters and different magnetic field strengths for a relatively small region and short time-scale in an attempt to interpret the recent discovered intense radio emission from ultracool dwarfs. ... A wide frequency band should therefore be covered by future radio observations. ...

... Moscow, Russia E-mail: krivosheev@iki.rssi.ru Notes: · · The Monte Carlo method (s) is also called the statistical test method An innumerable number of processes can be listed the outcome of which is not determined and has probabilistic nature, but these processes obey statistical laws, so to obtain the result we have to make multiple similar tests, i.e. to use the MC method Because probabilistic processes are widely spread in nature, the MC ...

... A method for processing IRAS-LRS data via the Groningen IRAS server is presented. ... Using the GIPSY software, we are able to obtain and to select reliable LRS spectra from the IRAS database. ... Raw IRAS data in GIPSY are stored as 4-D data sets (cf. ... The IRAS data were obtained using the IRAS data base server of the Space Research Organisation of the Netherlands and the Dutch Expertise Centre for Astronomical Data Processing funded by the Netherlands Organisation for Scientific Research. ...

Polar Alignment Using The Star Drift Method . Articles | ... This method with, a little practice, can give you reasonable polar alignment within one half hour. ... If the star drifts northward, your scope is west of the pole. ... Remember that as your adjustments get you closer to the pole, the star will drift slower and you must wait longer to detect a north-south drift. If the star drifts south, you are east of the pole and you must turn the mount towards the west. ... www.astronomy.net . ...

IRAF/STECF 2-D spectrum point source / background decomposition package . ... The general problem is one of spectral decomposition - of separating the spectra of the point sources from the background. ... The STECF IRAF layered package "specres" provides two tasks to extract point source spectra from 2-D images (either longslit, multislit or cross-dispersed) and decompose the full background over the image. ... A Point Source Function spectrum image is required as a 2-D spectrum. ...

Peremennye Zvezdy ( Variable Stars ) 32 , No. ... We report on a new episode of decretion disk formation in the IGR J06074+2205 system. ... From a study of three HeI lines, the rotational velocity of the star was determined as km/s. After five years of spectroscopic monitoring of IGR J06074+2205 (Reig et al. 2010), a reversion from emission to absorption of the H line and hence disappearance of the equatorial disk was reported. ... Reig P., 2011, Astrophys.& ...

... Main Committees Venue Visa Accommodation Cultural program Information . ... If you travel alone, the cheapest option (saves you $30) is to obtain a "business visa" using an official invitation from KFU. If you travel with family members or need faster processing, you should obtain a "tourist visa". ... Most people travel to Russia on tourist visas. ... First eROSITA International Conference: Mapping the Structure of the Energetic Universe 17-20 Oct 2011, Garmisch-Partenkirchen (Germany) . ...

... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...

... Galaxies 87 Magnetic eld strengths from polarimetric VLBI observations of water masers in W51 M K. Leppanen1 , T. Liljestrom1, and P. Diamond2 1 Metsahovi Radio Observatory, Helsinki University of Technology, Finland 2 National Radio Astronomy Observatory, Socorro, USA Introduction The idea that interstellar magnetic elds are coupled to gas motions was rst discussed by Alfven 1943 and Fermi 1949. Magnetic elds reveal themselves by polarizing radiation. ... 1989. ...

THE THERMAL RADIATION OF THE LUNAR SURFACE IN THE IR RANGE OF THE SPECTRUM (10-12 µm). ... 0.80 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.80 -0.80 -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.80 Fig.1 0.80 0.60 0.40 0.20 0.00 -0.20 -0.40 -0.60 -0.80 -0.80 -0.60 -0.40 -0.20 0.00 0.20 0.40 0.60 0.80 Fig.2 0.60 0.40 0.20 -0.00 -0.20 -0.40 -0.60 -0.60 -0.40 -0.20 -0.00 0.20 0.40 0.60 0.80 Fig.3 Indicatrix of the thermal radiation of the Moon (10.5-12.5 µ). ...