Next: Amplitude Distribution Previous: Gravitational Wave Background from . To get rid of the extragalactic GWB produced by binaries, one can use the above considerations to find the optimal detector halfwidth and frequency for observations. ... for the flat red end of the GWB, and . ... Equating to unity, one finds the critical detector halfwidth . ... In contrast, by observing the sky with a GW detector with a narrow enough halfwidth , one will not ``see'' the extragalactic GWB at frequencies . ...

Next: Correlator Products . Previous: RSOG Post-Observation Products . ... Merged Correlator Input Log . Calibration and Flag files . SRT Amplitude Calibration Data . ... Phase Calibration (PCal) Data . ... DPC to Correlators . What: The RSOG produces the `merged' correlator input log file based on the Data Processing Logs supplied by the GTSs and on Executed Sequence of Events supplied by GOCG to produce a single correlator input log for all the GTSs for each observation. ...

WFPC2 . Images: version1 , version2 . Catalogs: Version 1 HDF-S , HDF-N ;Version 2 HDF-S . STIS . ... NICMOS . Images: Camera 3 , V2 of psf-convolved STIS 50CCD on NICMOS . ... Images: WFPC2 FF , STIS FF ; Version2: WFPC2 FF , STIS FF , NICMOS FF . Catalogs: Version2 WFPC2 FF , STIS FF , NICMOS FF . ... Check the instrument specific technical pages for a description of the data products and the implemented data reduction steps: STIS , WFPC2 , NICMOS , Flanking Fields . ...

Next: Spectral Line Imaging Considerations Up: Imaging Previous: Imaging . ... Even if you are only interested in continuum imaging, your data may contain several frequencies. Unless you have averaged over frequency channels earlier, your data still contains the 2048 channels produced by the CABB correlator, or 33 frequency channels produced by the old ATCA correlator. ... The technique of forming a single continuum image from a variety of frequencies is called ``multi-frequency synthesis'' (MFS). ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... The product and processing information for the EPIC instrument. ... Parameter Mand Type Default Constraints pindex yes dataset none valid le name The Pipeline Processing Summary Index File obspage yes string none valid le name Output observation summary page . ppspage yes string none valid le name Output pipeline processing summary page . epxpage yes string none valid le name Output EPIC instruments processing summary ... Pipeline processing HTML summary le. ...

... Moscow State University, Sternberg Astronomical Institute . ... Moscow State University, Sternberg Astronomical Institute, Cremian Laboratory . Dr. Vladimir Amirhanyan - Soft, Radioobservations, Interpretations . Sternberg Astronomical Institute . Aleksandr Belinskiy - mechanics, soft, observations, interpretation . ... Mikhaylo Kuznecov - mechanics, soft, observations, interpretation . ... Moscow State University, Physics Department . ... Gleb Antipov - observations, interpretation . ...

... After the wavelength mapping and night sky subtraction, each 2D frame was corrected for atmospheric extinction and was flux calibrated. ... Finally, the 1D averaged spectrum was extracted from a 08 region along the slit, where > 2 ( is the dispersion of a noise statistics around this line) (see Fig. ... For the simultaneous derivation of C (H ) and EW (abs), and to correct for extinction, we used a procedure described in detail in Izotov, Thuan & Lipovetsky ([ 1994 ]). ...

... We give evidence that lower pressure model chromospheres can alos reproduce the Balmer line profiles, but give Lyman surface fluxes overestimated by more than an order of magnitude. ... We obtain the Paschen lines in emission and Paschen decrements as large as 41 for Pa$_{\beta}$. ... Formation of all Hydrogen series is collisionally controlled and takes place in a rather thin layer at the top of the chromosphere (Balmer, Paschen, and Brackett) or in the transition region (Lyman). ...

... These partially reduced images of the Pleiades were taken by WISP using its longer-wavelength (2180 ) UV filter. Point-spread functions (PSFs) of the brightest stars have been removed to reveal much of the inner reflection nebula, both in a centralized diffuse glow and in the nebulosity south of Merope, the bottom star in the Pleiades ``bowl''. The PSF removal process was improved since these images were produced. Better ultraviolet images can be found here . ...

... 8, ``Celestial Mechanics'', 2002 Estimation of masses of some minor planets from observations of perturbed bodies O. M. Kochetova Institute of Applied Astronomy, St. Petersburg, Russia The most straightforward method of mass determination of minor planets is the dynamical one which uses the gravitational perturbations produced by minor planet in the motion of other bodies. ... The values of the masses of minor planets (15), (29) and (65) appear to be rather close in both papers. ...

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Next: An On-the-fly Calibration Pipeline for the HST WFPC-2 using OPUS . ... An Astrometry Data Processing Pipeline has been developed and deployed at the Space Telescope Science Institute (STScI). This pipeline is responsible for producing Hubble Space Telescope (HST) Astrometry Data Sets used to analyze astrometry observations and the operation of the HST Fine Guidance Sensors (FGS). ... This application is used in scenarios where complete astrometry data sets could not be produced. ...

Archive of continuum observations consist of 140 magnetic tapes. From 1982 to 1987 only multi-frequency files were archived, which could be data-processed with old program PRF for SМ. Since 1991 new archive program ODA are used, 38 magnetic tapes were rewrited an DAT-tapes (since 1989). ... Now archive rewrite on DAT tapes every 1-2 weeks after observations. At last all archive of continuum observations has were writed on 12 CD-rom disks. Principal archivers: V.K. Kononov, S. Pavlov, ...

Follow-up observations with the University of Washington 0.76 m telescope at Manastash Ridge Observatory (MRO) of the Sloan Digital Sky Survey (SDSS) cataclysmic variable (CV) SDSS J170053+400358 are presented. ... They estimate that the dimming amounted to about 0.028 mag (using two comparison stars that were each about 4 mag fainter than HD 209458). only UW affiliated authors have been listed, student researchers are marked with an ``*'' . ... XTE J1859+226" UW affiliated authors: *Kevin Krisciunas. ...

... It seems likely that field-aligned potential drops (upward directed electric fields) are formed to create this effect (e.g., Weimer and Gurnett, 1993), although different wave-related schemes have also been suggested (e.g., Bryant et al., ... Auroral arcs have been related to large, perpendicular electric field structures, electrostatic shocks , observed mostly at geocentric distances 1.4 - 1.8 Re (9000 - 12000 km altitude; Mozer et al., 1977; Torbert and Mozer, 1978; Mozer et al., ... Res. ...

The ROSAT Results Archive ( RRA ) has been produced by the five participating ROSAT institutions: Max-Planck-Institut f?r Extraterrestrische Physik (MPE), Goddard Space Flight Center (GSFC), Smithsonian Astrophysical Observatory (SAO), Leicester University (LU), Astrophysikalisches Institut Potsdam (AIP). ... The RRA is based on, and is part of, the ROSAT Data Archive (RDA). ... A HRI RRA Page and PSPC RRA Page have further details and the most recent information. rsdc@cfa.harvard.edu . ...

Catastrophism : . ... During the late 18th and early 19th century, a German mineralogist, Abraham Gottlob Werner, proposed that all of the Earth's rocks were formed by rapid chemical precipitation from a "world ocean," which he then summarily disposed of in catastrophic fashion. Though not directed toward the genesis of landforms in any coherent fashion, his catastrophic philosophy of changes of the Earth had two major consequences of geomorphic significance. ... Thermal Plate Tectonics : . ...

Text of report The subject if our report is the influence of the structure and physics of the uppermost superadaibatic layers on the oscillational spectrum of p-modes. ... In our report we will try to use a most simple representation of the spectrum, plotting the differences between theoretical (that is models') and observational frequencies against a frequency. ... It allow us to focused on the effects of the uppermost layers and ignore possible sophistications from effect of more deeper layers. ...