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: . ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

... Doug's Home Page . ... S-Lang structures are converted to hash references in Perl , as shown below. ... n\n ; print Structure contents:\n ; # you can treat $s as a reference to a hash array in most respects, except: # - the order of the keys in the array matches that of the # original S-Lang structure # while ( my ( $ key , $ value ) = each %{$s} ) { print key $ key \t has a value of $ value \n ; } print \n ; $$s{afield} = 'a changed field value '; print ...

... ASAP data handling works on objects called scantables. ... For example Parkes multibeam data would contain many beams, one IF and 2-4 polarisations, while the new Mopra 8-GHz filterbank will eventually produce one beam, many IFs, and 2-4 polarisations. A collection of sequential integrations (rows) for one source is termed a scan (and each scan has a unique numeric identifier, the ScanID). A scantable is then a collection of one or more scans. ...

... We describe a parallel code for 3-D structure detection and morphological analysis. The method is based on a multiscale technique, the wavelet transform and on segmentation analysis. ... This paper presents a new parallel code, that allows a rapid structure detection and morphological analysis in a 3-D set of data points. ... Segmentation analysis. ... Our code is based on the programming paradigm MASTER/SLAVE . ... Finally, the morphological analysis is executed by the master. ...

... Ray Structure - Halley's Comet . Target Name: Comet Halley . ... Copyright: NASA Copyright Free Policy . Date Released: March 19, 1986 . The document " Halley's Comet " contains additional information related to this image. ... An example of the ray structure of Halley was captured on March 19, 1986, at the Mount Wilson/Las Campanas Observatories. ... The close up image, covering the inner 1 degree of the comet, shows a prolonged radius vector extending to the left. ...

Next: HST Science: Structure Up: Scientific Results from Deconvolved Previous: Introduction . A major question in the minds of most astronomical users was discussed by Ivan King at this workshop - the issue of validation of the output from deconvolution. ... Fig. 1 shows an example of cross-validation, using data taken from Keel (1993). The image is of the faint radio galaxy 53W044 at redshift . ... For galaxies with smooth, symmetric structure, modelling allows an independent comparison. ...

lte-codes . Sterne . ... In 2006, Behara and Jeffery introduced a new file format for the model atmospheres produced by STERNE and used by SPECTRUM and SFIT. ... allow depth-dependent descriptions of composition, and . ... model.lambda_ref <lambda ref > . ... abundance < elem > < abund > . ... structure.abundance < elem > : ( needs N depth ) . ab elem,1 , ab elem,2 , ..., ab elem,Ndepth > . ... structure.tau_ref : ( needs N depth ) . ... structure.opac_ref : ( needs N depth ) . ...

Next: Amorphous magnesium silicate Up: Examples of data contained Previous: Examples of data contained . ... We have used the infrared optical constants of forsterite contained in the database for calculating the absorption cross sections of spherical and non-spherical particles in the Rayleigh limit (see Fig. The spectra are obtained by averaging the cross sections calculated for the three different crystallographic directions. ...

... 3D structure rings , spots filaments · Application to Cygnus A and 3C 317 Radio cocoon and shaped Xray gas (contours) in Cygnus A Cygnus A (Chandra archive, courtesy P. Strub) large cocoon width elliptically shaped cluster gas marks bow shock axis ratio: 1.2 Outline · · · ­ Pretty data: Cygnus A Parameters of jet simulations in the history Extension to very low ... L g[ = -2 ] Parameter Study: Axis Ratio Small jets have spherical bow shocks! critical radius depends on . ...

... The MIT-Green Bank (MG) 5 GHz survey covers 1.87 sr of sky in the declination range between -0.508 and 19.496 degrees, and galactic latitude, b, above |b| > 10 degrees. The MG catalog contains 5974 sources with a signal-to-noise ratio greater than 5. ... The final MG II catalog contains 6182 sources detected with a signal-to-noise ratio greater than 5. The catalog was produced from two separate north and south surveys with the National Radio Astronomy Observatory (NRAO) 91m transit telescope. ...

... Comparison of a synthetic radio image and quaтАж . ... Title: Comparison of a synthetic radio image and quasar 3C 48 . Description: Comparison of a synthetic radio image (left panel) derived from the movie "Movie 1" and a VLBI image of the qusar 3C 48 (the second quasar discovered). ... Comparison of a synthetic radio image and quasar 3C 48 Comparison of a synthetic radio image (left panel) derived from the movie "Movie 1" and a VLBI image of the qusar 3C 48 (the second quasar discovered). ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... The HH flow associated with young stellar object HL Tau has an exciting history and even until now the origin of some its features is not clear yet. ... Knotty structures of Herbig-Haro jets are common phenomena and knowing the origin of such structures is essential for understanding the processes of jet formation. ... In the flow detected compact knots with high (-150 km/s) and bow shape structures in front of those, with low radial velocities (-50 km/s). ...

Hide Zen home . ... Index . ... Do we really need them for database indexing ? ... We need simple numbering scheme, so that for any given point we could easily calculate the number of "pixel", this is what HealPix provides and lacks HTM. ... During Rtree queries the number of index blocks read is several times greater than during Q3C queries. ... But in Q3C scheme, as we showed before, the circle is segmented, so we extract from the database only a few percents more data than occur in the circle. ...

Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the H_alpha image of the galaxy. ... The line-of-sight velocity fields of gaseous clouds in galactic disks of NGC 157 were analyzed by the method of reconstruction of 3D vector velocity field --- three components of velocities. ... This figure is produced with the help of software VORTEX developed in the Institute of Astronomy of the Russian Academy of Sciences. ... Back to Project Vortex. ...

... Input and output data is processed in the form of data sets, usually saved on disk as a FITS file. A data set can contain several blocks, such as tables and arrays (FITS's HDU). Traditionally blocks in a data set have been addressed by number (their position in the data set). ... The OGIP conventions for data products all have the block name set, so it is a matter of extending this concept also to utility tasks that normally wouldn't bother with the extension name. ... Note . ...

... The International Conference "Mode Conversion, Coherent Structures and Turbulence" will be held in the Space Research Institute of RAS during the period from 23 up to 25 November 2009. ... The international conference MSS-09 is organized by Space Research Institute with participation of the Russian Academy of Sciences, the Dynasty Foundation, the Russian foundation of fundamental researches, the European Geosciences Union, the Education and the Scientific Council on Nonlinear Dynamics of RAS. ...

... Main research and development work completed in 2011 and ready for implementation . ... It is found that the 1.8 MeV line is concentrated in the Galactic disk, whereas positron annihilation takes place in the central region of the Galaxy. ... Main research and development work completed in 2010 and ready for implementation . Main research and development work completed in 2009 and ready for implementation . Main research and development work completed in 2008 and ready for implementation ...

Next: NPOI raw packet data Up: Introduction Previous: NAT data Contents . These procedures use more elementary functions to produce diagnostic plots. plot_fdldelay , baseline _int [, beam _int ][, /slide ] Plot the residual FDL delay in microns. If keyword slide is 1, then open a sliding plot widget. plot_fdlpower , baseline _int [, beam _int ][, /sf ] Plot a power spectrum (or structure function if sf=1 ) of the delay. ... If beam is not specified, use currently loaded data. ...