RTT150 . ... The primary mirror 1 reflects light to the secondary mirror 2 which sends the converging beam of light to the system of four flat mirrors 3, 4, 5 and 6. That allows the beam of light to leave the telescope strictly along its polar axis and be collected in Coude focus. ... That's why at any tube position (for any rotation along the declination axis) beam of light parallel to the principal axis after reflection on mirror 3 follows the direction of declination axis. ...

... Astrophys. ... Vol. ... Lazarian A. Magnetic fields via polarimetry: progress of grain alignment theory // J. of Quant. ... Chandrasekhar S., Fermi E. Magnetic fields in spiral arms // Astrophys. ... Wiebe D. S., Watson W. D. Irregular magnetic fields in interstellar clouds and the linear polarization of starlight // Ibid. ... Rao R., Crutcher R. M., Plambeck R. L., Wright M. C. H. High-resolution millimeter-wave mapping of linearly polarized dust emission: magnetic field structure in Orion // Ibid....

Abstract -- The strengths of magnetic fields in interstellar gas clouds are obtained through observations of the circular polarization of spectral line radiation. ... To infer information about these irregularities from the observational data, we develop statistical relationships between the rms values of the irregular component of the magnetic field and spatial variations in the circular polarization of the spectral line radiation. ...

. Experimental base . • . Yakutsk Extensive Air Shower (EAS) Array . • . Polar Geocosmophysical Observatory (PGO) . • . Complex Geophysical Station (CGS) . • . Optical Station . • . Radiophysical Station . • . Yakutsk Cosmic Ray Spectrograph . • . Magnetic Observatory . • . Ionospheric Station . • . Station for Receiving of Satellite Information .

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

... Samara State Aerospace University Staff Savelev Dmitriy Andreevich . ... Khonina S.N. , Savelyev D.A. , Kazanskiy N.L. Analysis of Polarisation States at Sharp Focusing // Optik . ... 2015. ... Savelyev D.A. , Khonina S.N. Diffraction of Gaussian beams by micro-cylinders with sub-wavelength radius // 17th International Conference on Transparent Optical Networks (ICTON) 2015 , 04.07.2015 - 11.07.2015, Будапешт, IEEE, 2015, P. 1-4 . ... D.A. Savelev . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2014 March 12 . The Sun Rotating . ... Explanation: Does the Sun change as it rotates? ... In the above time-lapse sequences , our Sun -- as imaged by NASA 's Solar Dynamics Observatory -- is shown rotating though the entire month of January. ... A large and active sunspot region rotates into view soon after the video starts. ... About APOD | ...

... 8, ``Celestial Mechanics'', 2002 FCN -- period dependence on dynamic characteristics of a lunar core A. Gusev 1 , N. Petrova 1 , N. Kawano 2 , and RISE group 2 1 Kazan State University, Kazan, Russia 2 National Astronomical Observatory, Mizusawa, Iwate, Japan Two modes in a polar oscillation are obtained when a free rotation of the two--layer Moon was studied: 1 PCW = 2\Omega A Am p fffi ё 1 74yr 1 P FCN = \ Gamma \Omega A 2Am ` C c \ ...

Geoff Bicknell, Alexander Wagner We are engaged in the following computationally intensive projects related to Black Hole and other energetic phenomena. Accretion disks. ... We envisage that we will determine the way in which gravitational energy is channeled into the high temperature coronae of black hole accretion disks and into relativistic jets and winds. ... Feedback from black holes and starbursts. ... COALA : Universe Galaxy AGN Star Planet ...

... 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 . ...

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Previously understood that magnetic fields were directly related to rotation, so when I read that Mars, like Venus, didn't have one, my understanding crumbled. What exactly causes magnetic fields in planets? ... RELATED TOPICS: MAGNETIC FIELD . Planetary magnetic fields are definitely related to rotation, but directly not so much. ... Get instant access to subscriber content on Astronomy.com! ...

... 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. ...

Unno, W. Line Formation of a Normal Zeeman Triplet http://adsabs.harvard.edu/abs/1956PASJ.. ... 108U Moe, Olav Kjeldseth A Generalized Theory for Line Formation in a Homogeneous Magnetic Field http://adsabs.harvard.edu/abs/1968SoPh.. ... 24S Landi Degl'Innocenti, Egidio; Landi Degl'Innocenti, Maurizio Quantum Theory of Line Formation in a Magnetic Field http://adsabs.harvard.edu/abs/1972SoPh.. ... 235H Sazonov, V. N. Polarization in Zeeman-split absorption lines http://adsabs.harvard.edu/abs/1975SvA.. ...

... This implies that the scientific output be much larger than that from modern ground based observations in the same scientific field. ... In order to obtain a full picture of the variable structure of such objects with the very high angular resolution it is necessary to build in future multi-element space systems similar to ground arrays. ... 30,000 km) for objects within = ? ... structure and motion of extragalactic sources as a result of their lensing by extragalactic objects . ...

... Resolution - 1.5-2.0 km . Swath - 450 km . ... Swath - 550 km . ... Resolution - 370 km . ... Spectral bands - 0.6-0.7 um; 0.8-1.1 um . ... Kondor - system for collection and transmission of data from sea and ice stations . ... Downlinking to ground stations (main centers) . ... Satellite's information system operates in both direct transmission mode and recording to on-board recorder mode with later downlink to ground station. ... For more information send a mail to: info@sputnik.infospace.ru . ...

... Bionic eyes. If our eyes could see in different wavelength bands, this is what the Sun would look like. ... Visible light, crucial to photosynthesis, is a type of radiation. ... At the heart of this revolution is the recognition that light travels as a wave. ... Dreams of Fields . ... By the time the fields go from strong to weak and back to strong, the wave has moved a certain distance, known as the wavelength. ... Red light, blue light, infrared light, ultraviolet light, radio waves, x-rays ? ...

RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...

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ARCSAT ID NUMBER: AS02 DESCRIPTIVE TITLE: Constraining the magnetic fields of transiting exoplanets through ground-based near-UV observations PI: Jake Turner OBSERVER(S): Jake Turner (Graduate Student: University of Virginia) Apurva Oza (Graduate Student: University of Virginia) Robin Leiter (Undergraduate Student ... The magnetic field of a transiting exoplanet can be constrained by observing asymmetries in their near-UV light curves (Vidotto, Jardine Helling 2011a; Vidotto et al. ...