... Astrophysics Group . ... VSA . ... CAT . ... The Very Small Array is a custom-built radio telescope (operating between 26-36 GHz), designed expressly to make high resolution observations of the cosmic microwave background (CMB) radiation on angular scales around and below one degree. ... The VSA has been operated in ?compact array? and ?extended array? configurations (see the technical description below) and data collected to achieve high sensitivity in both regimes have been analysed. ... 1.75 GHz)...

... Temp. of Gregorian Receiver Room . ... Receivers On Schedule . Receiver Instrumentation Logs . Click on receiver name for status, calibration, RFI and Tech. info.) ... CH 47 - MHz . Dual Circular . ... 327 - MHz . ... Native Linear . ... C. Salter . csalter) . ... Dual Linear . ... Check receiver homepage for accurate gain and system temperature values. ... NAIC] [Astro Home] [Staff] [Observing] [Receivers] [ALFA] [RFI] [Data] [Memos] [Publications] [Calendar] [Contacts] . ...

... Search . ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... Default . ... List of dataset names to receive attributes. ... string . A list of attribute names. ... r|real|i|integer|s|string|b|boolean . A list of the attribute types, one for each attribute name. (eg. attributetype=` ``string'' ``real'' ``string'' ..'). attributecomment . ... A list of values, one for each real attribute . ... integer . A list of values, one for an integer attribute . ... A list of values, one for a string attribute . ... A list of value, one for a boolean attribute . ...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... 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. ...

... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...

... Flight 1) 2) 3) Flight 1) 2) 3) model FM1 has the following parts: LNA MY-18, serial number PN 01-0252, factory number FM1; receiver box KRT-18, serial number PN 17660-01, factory number FM-001; DC-DC converters IVEP1 and IVEP2, factory number 05. model FM2 has the following parts: LNA MY-18, serial number PN 01-0252, factory number FM2; Receiver box KRT-18 serial number PN 17660-01, factory number FM-002; DC-DC converters IVEP1 and IVEP2 factory number 06. ... See Appendix 1. ... 2003. ... 2004 . ...

... ABINGER ABISKO ADDIS ABABA AGINCOURT ALERT ALIBAG ALMA ATA ALMERIA AMATSIA AMBERLEY ANCHORAGE ANNAMALAINAGAR APIA ARGENTINE ISLAND ARKHANGELSK ASHKHABAD BAGUIO BAKER LAKE BANGUI BARROW BEIJING BELOIT BELSK BIG DELTA BOULDER BRORFELDE BURLINGTON BYRD STATION CAMBRIDGE BAY CANARIAS CANBERRA CAPE CHELYUSKIN CAPE TOWN CAPE WELLEN CASTLE ROCK CHA PA CHAMBON-LA-FORET CHANGCHUN CHARACATO CHARCOT CHELTENHAM COIMBRA COLLEGE DALLAS DAVAO DE BILT DEL RIO DIXON ... Year Month Day Hour . ...

... memb ers of the CAUSTIC Group www.dfg.unito.it/ricerca/caustic Cambridge, April 19th 2011 SCIENTIFIC BACKGROUND Observations of SNae : Interpretation in the CDM model Alternative cosmological models: Conformal gravity and kinematic conformal gravity GRBs as cosmological probes: Bayesian approach BAYESIAN ANALYSIS Parameter forecasts (posterior probability): Likelihood and priors ... Constitution set of Hicken et al 2009) Bayesian parameter estimation again.. ...

... 8, ``Celestial Mechanics'', 2002 First results of GPS orbit determination with GRAPE package using a square--root information filter M. O. Keshin Institute of Applied Astronomy, St. Petersburg, Russia The zero--differenced carrier phase measurements contain the distance be­ tween the phase centres of receiver and transmitter antennas biased by unknown integer number of cycles (phase ambiguities). ... In the case of GPS the problem of solar radiation pressure modelling is of primary importance. ...

... The timecode of these receivers is sampled via a STREAMS module in the kernel (The STREAMS module has been designed for use with SUN Systems under SunOS 4.1.x. It can be linked directly into the kernel or loaded via the loadable driver mechanism). ... The reference clock support in xntp contains the necessary configuration tables for those receivers. In addition to supporting up to 32 different clock types and 4 devices, the generation a a PPS signal is also provided as an configuration option. ...

Институт Космических Исследований . ... ИКИ РАН - Главная . Отдел "Исследование Земли из космоса" . ... Microwave studies of the nonlinear dynamics of sea waves (Grant #05-02- 16384, Russian Foundation for Fundamental Researches). ... Electromagnetic wave scattering on sea surface in presents of surface films (Grant #04-02- 16629, Russian Foundation for Fundamental Researches). ... Two Polarization X-band Radar . ... Transmission frequency . ... Polarization . ... ИКИ РАН , 2009 ...

... Special procedures had been developed and tested with the flight electronics: · fast definition of the operational conditions for the FFO (both in the Fiske step and quasi-particle regimes); · measurements of the free-running FFO linewidth; · optimization of the LSU and HM parameters; · optimization of the PLL operation; · minimization of the SIR noise temperature; · setting all predefined SIR parameters in the exact sequence for ... SIS IF dependence on HM voltage and LSU power. ...

STIS Instrument Handbook for Cycle 24 . ... Not calibrated; receive raw data files only. ... Data events are tabulated in rootname _tag.fits file with one binary table extension for each buffer read (determined by exposure time and BUFFER-TIME parameters). ... The number of imsets in the raw file equals CR-SPLIT or Number_of_Iterations . Raw file imsets are cosmic ray rejected and summed before the bias, dark, and flat-fielding corrections are made, producing a rootname _crj.fits file. ...

Spectrometric complex of RATAN-600. ... There is a system of stable computer driven local oscillators that have accuracy about 10 to degree -8. ... Spectrometer driving system is accomplished with two DVK-4 computers and one IBM PC and make possible to develop radio line observations on the frequency band pass of the input low noise amplifiers ( LNA ): . ... The performance of spectrometric complex is controlled by program driving system ( PDS ) and the data gathering and recording system ( DGS ). ...

... Ahmad, A., Jeffery, C.S. , 2004, ``Physical parameters of helium-rich subdwarf B stars from spectral energy distributions'', Astronomy and Astrophysics, 413, 323-327. Ahmad, A., Jeffery, C.S. , 2004, ``The evolution of helium-rich subdwarf-B stars'', Astrophysics and Space Science, 291, 253-260. Ahmad, A., Jeffery, C.S. , Fullerton, A.W., 2004, ``Discovery of a spectroscopic binary comprising two hot helium-rich subdwarfs'', Astronomy and Astrophysics, 418, 275-281. ...

It could be that SETI signals have arrived at the Earth, but are lower then the noise level, and our receivers cannot detect them. ... Fig. ... It follows that two zones form around the star with civilization X: "Zone Yes", where its SETI signal can be detected, and "Zone No", where its signals are hidden by noise (Fig. ... In practice, it is more efficient to use a time factor, since the problem of SETI contact does not limit the duration of the signal element and semantic text. ...

Next: Other parameters of the Up: The Model Previous: Initial binary parameters . As we only deal with initially massive binary systems (their primary's mass is higher than 10 ), which are capable of evolving off the main sequence during less than years, the compact stars left behind stellar evolution are (in the case of the most massive stars) NSs and BHs. ... For a NS belonging to a binary, the evolution complicates as the secondary star evolves: for example, (recycling), etc. ...