... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

... Henning, director of the Institute . ... Dr. U. Steinacker . Dr. S. Wolf . ... Henning Th., ... Astrophysical Journal , v.561, p.871-879. PDF file ] . Wolf S., Voshchinnikov N.V., Henning Th. ... Astronomy and Astrophysics , v.385, p.365-376. ... Jaeger C., Il'in V.B., Henning Th., Mutschke H., Fabian D., Semenov D.A., Voshchinnikov N.V. (2003) A database of optical constants of cosmic dust analogs. ... Steinacker, J., Henning, Th., ... Astronomy and Astrophysics , v.401, p.405-418. ...

The above image is a computer simulation of the distribution of mass in a Dark Matter dominated Universe. ... Structure (\eg density enhancements) clearly forms at the intersection of these filaments. ... What is Dark Matter? ... Testing for the presence of dark matter in the solar neighborhood now becomes an accounting problem The possible sources of this mass in the solar neighborhood are 1) luminous stars, 2) interstellar gas, 3) stellar remnants (mostly white dwarfs) and 4) dark matter: . ...

Titan is the fifteenth of Saturn 's known satellites and the largest: orbit : 1,221,830 km from Saturn diameter : 5150 km mass : 1.35e23 kg . ... It was long thought that Titan was the largest satellite in the solar system but recent observations have shown that Titan's atmosphere is so thick that its solid surface is slightly smaller than Ganymede's . ... The organics are formed as methane, which dominates in Titan's upper atmosphere, is destroyed by sunlight. ... HST images of Titan's surface: txt . ...

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...

Merged Planned and Performed Observations, sorted by RA / DEC . ... XMM-Newton SOC Home Page Conferences & Meetings . News Latest News News Archive Newsletter Quarterly Status Report . General User Support XMM-Newton Helpdesk Users Group . Proposers Info Documents Manuals AO-15 Information AO-16 Timeline OTAC Results Target Visibility Tool Target Search Tool . ... Data Analysis SAS News What is SAS? ... Back to Planned/Performed Index . ... XMM-Newton; Europe's X-Ray Observatory . ...

... They were determined as a result of orbit improving on the base of all kinds of optical observations available in the catalog of observations of the Minor Planet Center on March 16, 2014 (radar observations have not been used at this stage). ... As the MPC orbits do not all were improved simultaneously with EMP orbits, only 383866 sets of elements were used for data comparison (for selected sets of elements process of improvement had started with the use of the same observations). ...

... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

... kupry@sai.msu.ru also kupry@asu.cas.cz . ... Solar expeditions. Astronomical Institute Czech Republic Examples IDL procedures Evpatoria Space Image Evpatoria Winter 2012 European Solar Physics Meeting Digital Images Album IDL Lib Karlovy Vary, 2008 List of publications Masha MAX MILLENNIUM PROGRAM My family (new) HSFA-2, 2005 Ondrejov (brezen 2005 ) Ondrejov webcam Photo Ondrejov observatory Praha SatTV Seznam SOHO Solar eclipse 31 July 1981 Software IDL programmes ...

In accreting binary neutron star systems matter is channelled by the strong magnetic field to the poles of the neutron star. The accreted matter accumulates at the poles to form accretion mounds. Pressure from the confined matter can significantly distort the local magnetic field structure, affecting the X-ray observations and long term evolution of the magnetic field. ...

... 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. ...

... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo’s “central” Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

... Пширков М.С. Попов С.Б. A new method is suggested to search for axions constituting Dark Matter that utilizes observations of neutron stars (NS) in radio-frequency region. ... For example, if the coupling constant of photon-axion interaction is GeV and the density of DM axions is , then the flux density of excess signal for axions with rest mass of eV will be as large as several tenth of Jy at the frequency 240 MHz in the bandwidth 0.5 MHz. ...

Borodkova and G.N. Zastenker Influence of the large and sharp solar wind pressure pulses on the magnetosphere: several case studies Space Research Institute RAS, Moscow , RUSSIA M. Dolgonosov (1), G. Zimbardo (2), A. Greco (2), and L. Zelenyi (1) Influence of the perpendicular electric field on ion beamlets in the magnetotail (1) Space Research Institute of RAS, Space Physics , Moscow , Russian ...

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.. ...

... OH, = 18 cm Nancay Radio Telescope, OH 18-cm line observations , since 1969 F, Jy 6 4 2 0 0 -1 -2 0 -1 -2 0 -2 -4 -6 30 40 50 1612 MHz I HU Pup August 5, 2009 1665 MHz 4 2 0 0.5 0.0 - 0.5 -1.0 -1.5 1.0 0.5 0.0 - 0.5 4 3 2 1 0 -1 1667 MHz I I 1.0 0.5 0.0 0.5 0.0 22-meter telescope, Pushchino Radio Astronomy Observatory H2O F, Jy 1.0 0.5 0.0 0.4 0.2 0.0 -0.2 -0.4 0.4 0.2 0.0 -0.2 -0.4 -0.6 0.6 0.4 0.2 0.0 -0.2 -0.4 -70 -60 -50 -40 -30 -20 -10 0 Mira-type star R Leo. ...

... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...

... In the light curve depicting their observations, definite trends are noted, here is a "thumb-nail" analysis of the the magnitude estimations of the bright SN (1989B) in the galaxy NGC 3627 (M66). ... 10 (IAUC # 4742) 2/25 13.3 16 j 2/27 13.5(*) 18 lc 2/28 13.8 19 p 3/1 13.2 20 w 3/2 13.5 21 a 3/4 13.8 23 p 3/6 13.3 25 c 3/7 13.3 26 c 3/8 14.1 27 m 3/8 13.3 27 r 3/9 13.4 28 c 3/9 14.1 28 m 3/10 13.6 29 j 3/10 14.0 29 a 3/11 13.6 30 c 3/11 13.5 30 r 3/11 13.7 30 s 3/13 [13.69 CCD Mag.] ...

... B.V. Somov . head of the department . ... room 80 . ... senior research felow . ... research felow . ... research fellow . ... Our department performes the following most perspective studies: . Special analytical and numerical experimental investigations of the solar plasma involved in the magnetic reconnection process at the Sun. ... Head of the seminar: Prof. B.V. Somov. ... 27 September 2013 The Solar Physics Department was visited by journalists of the leading Russian TV channel "Vesti-1". ...