... In electron-positron colliders, effect of the lattice modification by opposing bunch focusing on the equilibrium radiation emittance is important at high values of the space charge parameter, so one should correctly evaluate this dynamic radiation emittance of the weak beam, which may differ a lot from the nominal emittance, already in the linear beam-beam force model. ... The linearized beam-beam force is equivalent to focusing insertion in linear lattice of the collider. ...

... RADIATION AND ECOLOGICAL MONITORING . ... OF MEASURING CHANNELS . Parameters of ecological fields measured by ARES . Parameter measured, . ... Volumetric activity of gases radionuclides in the air, Bq/m 3 : . ... of inert gases . ... Volumetric activity of a- and b-active aerosols, Bq/m 3 : . ... Concentration of nitric oxide NO, mg/m 3 . ... Meteorological parameters measured by ARES . ... 0.5 + 0.05 V), where V - measured wind velocity . ... Official WEB-site of S.P.Korolev RSC Energia . ...

... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...

Static Fourier spectrometers are often used for spectral measurements of the ionosphere emissions. There are two main advantages of Fourier spectrometers (FS) - large geometric factor and high spectral resolution; these parameters are two orders better than for grating spectral instruments. ... In scanning Fourier spectrometer optical and electric modulation of signal is used to avoid this problem, for static Fourier spectrometer there are no such ways. ...

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

... Effective parameters of the field source. ... The electron gun is used as the field source (FS) of the ISTOCHNIK instrument on board of the MIR space station which radiates the electron beam with the energy W = 10 keV during the time D t = 4x10 -6 s with the repetition frequency f = 10 and 140 and 10 3 Hz. The number of the electrons injected during one pulse is approximately 1.8x10 13 which corresponds to the beam current of 0.7 A. ARIEL . ... 200x10 -6 s (accelerator one) or D t ? ...

... source code A class to hold information by fitting multi-component Gaussians to a NIFS data cube. Attributes: restwavl - The rest wavelength used to determine line velocities. vmin - The minimum velocity value used for generating the spectrum to fit to. vmax - The maximum velocity value used for generating the spectrum to fit to. scidata - The scidata from the fitscube, trimmed down so that it only includes the data between vmin and vmax vars - The variance ... Instance Methods . ...

... 5 1/ 2 Closing the feedback lo op: 1st option · Feedback efficiency 2NepEep f = Lp 4 3 w1 R 3 E1 w2 c E2 ( Eep E1 if E1 E2) · Pair pro duction rate Nep = · Soft (synchrotron from secondary pairs ) photon field: Eep 2 eB E2 1/2 f w w b , w2 = Es = 4 Es 2 mec2 mec · Hard ( inverse Compton from primary pairs ) photon field: 2 2 wb 3 R w1 , E1 = 3 2Ts wb = 4 R T ct 0 0 mec2 wb is thermal background energy density ...

... Space flight . ... Zero Gravity . ... Characteristics of a Complex Flight: . ... Characteristics of the Reduced Gravity (Lunar Gravitation): . ... Characteristics of the Reduced Gravity (Martian Gravitation): . ... Services / Zero Gravity: General description Technical description Flight parameters Photo gallery Price . ...

... RC0302+0455 . RC0308+0454 . ... RC0355+0449 . Radio source parameters . ... R.A.(B1950) Dec.( B1950) Freq. ... Parameters of optical candidates for identification . R.A.(J2000) Dec.( J2000) R.A.(B1950) Dec.( B1950) Magn. ... J2000) angle fwhm (X:Y) 03:08:33.98 +04:54:10.5 . ...

... Give volunteers public recognition . ... previous page | ... Public recognition for service to the club (such as managing the website or securing meeting speakers) is as important as recognition for public outreach. ... Ideas for Giving Public Recognition . ... Sharing the Universe videos are produced by the Astronomical Society of the Pacific (ASP) from research conducted by the Institute for Learning Innovation, the ASP, and from astronomy clubs like yours. www.astrosociety.org/SharingTheUniverse ...

КАТАЛОГ ВОЗРАСТОВ, МЕТАЛЛИЧНОСТЕЙ, ЭЛЕМЕНТОВ ОРБИТ И ДРУГИХ ПАРАМЕТРОВ БЛИЗКИХ F-ЗВЕЗД . ... В. Марсаков, Ю. Шевелев . ... Подробнее о методах вычисления возрастов и элементов орбит звезд см. в работах Марсаков & Шевелев (1993) и Марсаков & Шевелев (1994). ... A & A, 22, 255 // Первая цитата в статье . ... Первая цитата в статье . ... Марсаков В.А. & Шевелев Ю.Г. 1993, АЖ, 70,1218 // Первая цитата в статье . Марсков В.А. & Шевелев Ю.Г. 1994, АЖ, 71, 368 // Первая цитата в статье . ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

... Meade Instruments Corporation . ... Meade Pictor XT-Series CCD Autoguider/Imagers . Section 7: Camera Menu . ... allows the user to take continuous exposures using the current exposure setup. ... Exposure Time: The Pictor cameras can take exposures as short as 4ms or as long as 120min, though a practical limit on exposures time will usually be less than 20 minutes for most objects and conditions. ... The camera will then take the rest of the images and add them together to produce a single image. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

... Bad Astronomy . ... On Thursday, February 15th 2001 (and replayed on March 19), the Fox TV network aired a program called ``Conspiracy Theory: Did We Land on the Moon?'', hosted by X-Files actor Mitch Pileggi. ... Dust around the lander . ... However, it appeals to our common sense: when the sky is black here on Earth, we see stars. ... Bad: The program claims that when the top half of the lander took off from the Moon to bring the astronauts back into orbit, there was no flame from the rocket. ...

... Next Routine] [List of Routines] NAME: ADD_HEADER PURPOSE: addition information from FITS-headers MPFS-frames DESCRIPTION: The function computes the total exposure, mean value zenit distance and modified FITS header CALLING SEQUENCE: Result =ADD_HEADER( headers ) CATEGORY: reduction MPFS-data INPUTS: Headers = String array FITS-headers from the MPFS data OUTPUTS: Header = String array containing the header from the FITS file. ... OPTIONAL INPUT KEYWORD PARAMETERS: BEFORE = Keyword string name. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...