... The useable imaging area of the OM CCD detector is 256 by 256 physical pixels. Individual photon events are centroided to one eighth of a physical CCD detector pixel by the OM electronics. The resulting OM imaging area is therefore 2048 by 2048 pixels. However, the centroiding algorithm distributes the photons unevenly within each physical CCD pixel, corresponding to 8 by 8 unbinned image pixels or a single mod-8 tile, as though the pixels are smaller near the edge of the tile. ...

... In our numerical experiments we have mainly considered two test objects provided by R. Hanisch and characterized by different types of brightness distribution; one of the objects simulates an elliptical galaxy and the other one a star cluster with size 512 512 and 256 256 pixels, respectively. ... The best performances in the restoration of the star cluster image are provided by the R-L algorithm and the LWPOS one; they give accuracies of 6%and 5%, respectively (see Table 1). ...

... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...

... 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. ...

... HYPERBOLOID is a plasma spectrometer aimed at the investigation of the low energy ions dynamics in the polar ionosphere and magnetosphere on the INTERBALL Auroral Probe . ... The instrument is basically a multi-directional ion mass spectrometer measuring ion distribution functions over an energy range from ~0.1 to 80 eV. ... The ion angular and energy distribution are obtained by means of an electrostatic optics defining 2 planes with several entrance windows. ...

. Next: Some statistical trends and Up: Spectral survey of Case Previous: Quasar CG 273 . љ . Some statistical trends and distributions . Sky and redshift distribution . Accuracy of data, comparison with independent measurements . root . 1/10/1998

Next: Discussion Up: Old neutron star distribution Previous: Galactic potential . It proves to be teachful to have a look at the calculated distribution (Fig. ... The galactic z -distribution of stars and peculiar velocities slightly smear out this narrow boundary. ... The final picture (Fig. ) of the old neutron star density distribution is obviously the sum of filled equipotential lobes with different weighted with the probability shown in the Fig. ...

Next: AO data and AIPS++ Up: Spectral-Line Observing at AO Previous: Useful Stuff . There are currently a number of ways you can convert Arecibo data into other data formats, and a variety of support levels for different data analysis programs. As a result it is feasible to reduce your Arecibo data with a wide range of data reduction software. ... In the following two section we describe spectral line data analysis in two of the available data reduction packages - Analyz and AIPS++. ...

... POSANG= Enter position angle major axis: [ 0.0 ] OUTPOS= Enter rotation center in grids: [ 0.0 0.0 ] BOX = Give box in ..... [entire subset] Enter a box for the rotated set (see description) TABLEFILE= Enter output filename for densities: [ RADIAL .DAT] GUESS= Enter initial estimate: [L] Enter one of: L = Linear Regression E = Exponential Decreasing G = Gaussian Distribution F = Flat Distribution SCF= ... The method needs an initial estimate for the distribution. ...

... I.A.Dynnikov, Three-page approach to knot theory. ... Universal semigroup, Funktsional'nyi Analiz I Prilozhenija, 34 (2000), no.1, 29-40 (Russian); English translation in Functional Analysis and Its Appl. 34 (2000), no.1, 24-32. I.A.Dynnikov, Finitely presented groups and semigroups in knot theory. ... Math. 2000, no. ... English translation: Russian Math. ... A.Vershik, Numerical invariants of exponential groups, and a locally free approximation of braid groups (in Russian), Zapiski Nauchn. ...

Modern AstroStatistics has emerged as a new field in recent times, informed by a Bayesian foundation, utilizing powerful computational tools like MCMC, and applied to diverse analysis and inference problems in Astronomy. ... The goal of our Special Session is to review current practices, highlight modern techniques, and explore how the transition into the realm of Big Data Astronomy can be facilitated. ... Big Computing in Astronomy: Perspectives and Challenges . ...

... 3.2 Dichroic/fold mirror mount tilt stability test.. ... 3.2 Dichroic/fold mirror mount tilt stability test 3.2.1 Mount design Brief descriptions of mount as used for dichroic or mirror, with a 3d drawing. ... MRO-TRE-CAM-1100-0142 Page 5 of 7 3.3 Lens mount stability test 3.3.1 Mount design Brief description of mount, with a 3d drawing. ... 5 Camera Enclosure 5.1 Enclosure design Description of camera enclosure, its relationship to camera mount and emphasise what is different from CoDR design. ...

FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...

... In the left part of the screen the items of ephemeris menu are situated. To the right one can see corresponding settings. In case the newly introduced settings are incompatible with each other or with other ones (it can be the result of improper change of previously existed setting or, what is virtually the same, result of violating the order from top down in which settings must be introduced) the warning notice appears on screen and conflicting settings are marked by special symbol. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Last modified . ... 2011-06-09 11:56 . ... 860K . ... 835K . ... Last Revised: 2013 April 25th . ...

... Science . ... Science Users Information > Science Publications > Science Announcements > Release of Photometric Catalogue Data Resulting from the VISTA Magellanic Survey . ... The catalogues were extracted from the reduced images which have been released under VMC Data Release 2 in June 2013. The new catalogue data are accessible from the ESO catalogue facility query interface , each accompanied by a comprehensive description; see for example, the description of the YJKs master catalogue. ...

Tables give parameters of interstellar extinction and polarization curves produced by rotating homogeneous spheroids with imperfect Davis-Greenstein (IDG) orientation. table 1 (amorphous carbon, oblate particles with a/b=2.0) . table 2 (amorphous carbon, oblate particles with a/b=4.0) . table 3 (amorphous carbon, prolate particles with a/b=2.0) . table 4 (amorphous carbon, prolate particles with a/b=4.0) For model description and some results see: . ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

Fast algorithm of reconstruction of absolute conductivity distribution in a cross-section of human body by measurements of electrodes' potentials on the skin surface is described. ... This paper describes fast algorithm for absolute conductivity reconstruction and results of its application. ... The main problem under the absolute image reconstruction is obtaining of reference data, corresponding to the object with uniform conductivity and the same electrode positions. ...

... 368, 2007 Petr Heinzel, Ivan Dorotovi and Robert J. Rutten, eds. c Some Structural Prop erties of Solar Magnetic Fields B. Ioshpa, E. Mogilevskii and V. Obridko IZMIRAN, Troitsk, Moscow Region, Russia Abstract. We discuss some results of the study of spatial characteristics of solar magnetic fields. ... The global fractal numbers of space distribution of magnetic field on solar surface is closely connected with the mean absolute values of the longitudinal magnetic field for this surface. ...