... It is found that the metallisity distribution of disk stars has a gap which subdivide the disk population into two groups. The distribution may be described by the sum of two normal curves which are centered at [Fe/H]=-0.22 and +0.08. The curves can be interpreted as distributions of random errors in metallisity of sample stars. This leads to the conclusion that all stars in each group have actually the same value of [Fe/H]. ... Рассмотрен вопрос о происхождении подсистем Галактики. ...

http://hea-www.harvard.edu/AstroStat/slog/2008/ tests -of- fit -for-the- poisson - distribution / Weaving together Astronomy+ Statistics +Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/2008/ tests -of- fit -for-the- poisson - distribution /comment-page-1/#comment-267 ... Abstract: Improved №З2 statistics are defined for both Poisson and multinomial data sets. ...

Scale-free dynamical models for galaxies: flattened densities in spherical potentials . ... The `case I' distribution functions are anisotropic generalizations of the flattened f(E,L_z) model, which they include as a special case. The `case II' distribution functions generate flattened constant-anisotropy models. Free parameters control the radial power-law slopes of the mass density and potential, the flattening of the mass distribution, and the velocity dispersion anisotropy. ...

Next: Abstract . Mikhail E. Prokhorov and Konstantin A. Postnov . ... Physics of Neutron Stars'' . ... Abstract . ... Initial conditions . Space and velocity distributions . Space position . Initial velocity . ... Mike E. Prokhorov . ...

... ATCA HI and radio continuum observations of the peculiar southern galaxy IC2554 and its surroundings reveal typical signatures of an interacting galaxy group. We detected a large HI cloud between IC2554 and the elliptical galaxy NGC3136B. The gas dynamics in IC2554 itself, which is sometimes described as a colliding pair, are surprisingly regular, whereas NGC3136B was not detected. ... The total HI mass of the IC2554 system is approx. 2 x 10 9 Msun, a third of which resides in the HI cloud. ...

... 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. ...

... 2000; Persi et al. 2000). One of these stars (Cha Halpha1) is a bona-fide brown dwarf, with mass 0.04-0.05 Msun. ... This result provides a first indication that the formation mechanism of T Tauri stars (via core contraction and formation of an accretion disk) extends to objects in the brown dwarf mass range. ...

Next: Introduction . ... A spike immunity method of digital integrating radiometer signals in the jamming environment is described. ... The purpose of the method is real-time signal processing, and the basic is an alternative selection of the least offset signal estimation using nonparametric "Nearest Neighbor" rule. ... The additive spike-like jam makes the "tails" of the distribution "heavier" which leads to different offsets for linear and rank mean estimation on the integrating interval. ...

... Bisnovatyi-Kogan, Gennady S.; Merafina , Marco; Vaccarelli , Maria Rosaria; Spherically Symmetric Stellar Clusters with Anisotropy and Cutoff Energy in Momentum Distribution. ... We construct numerical models of spherically symmetric Newtonian stellar clusters with anisotropic distribution functions. ... Models of spherically symmetric relativistic stellar clusters with anisotropic distribution functions in relativistic regime are described by using Maxwellian distribution function with energy...

... Bojan Nikolic web pages (r. 329) . ... Analysis of (radio) spectra . I describe an approach to fitting and comparison of radio spectra based on Bayesian analysis and realised using a new implementation of the nested sampling algorithm. ... I this paper I cover the theoretical background, the algorithms used and the implementation details of the computer code. I also briefly illustrate the method with some previously published data for three near-by galaxies. ... Paper I: Method . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... While the traditional statistics of impact craters allow us to determine the cumulative meteoroid flux on the lunar surface, the recent successful identification of fresh craters in orbital imagery has the potential to directly measure the cratering rate of today. Time-resolved recordings, e.g., seismic data of impacts and impact flash detections clearly demonstrate variations of the impact flux during the lunar day. ...

A comparative study of type I and type II supernovae . ... Sternberg State Astronomical Institute, Moscow, U.S.S.R. (Received 26 November, 1985) . ... No significant difference between SNe I and SNe II has been found in their radial distribution and frequency of outbursts in spiral galaxies. ... The radial distribution of type Ia SNe in spiral galaxies is only slightly steeper than the one for SNe II, while SNe Ib/c are more concentrated towards the central regions. ...

CATS home ] [ Back to CATS list ] [ ftp ] . ... Received 1999 November 5; accepted 2000 February 10 Since radio sources with Ultra Steep Spectra (USS; alpha -35ddeg, we selected only sources with angular sizes Theta Comparison with spectrally unbiased samples at similar flux density levels, shows that our spectral index, flux density, and angular size selections do not affect the angular size distribution of the sample, but do avoid significant contributions by faint foreground spiral galaxies. ...

Workshop on geometric analysis and spectral theory . ... On a class of random walks on groups with infinite number of generators". ... Optimal transportation, weak flows and very degenerate elliptic PDE's". ... Singular solutions to fully nonlinear elliptic equations". ... I will give some hints on how this conjecture is related to minimal surface theory and I will describe some flatness results for non local equations on one hand and on elliptic equations on riemannian manifolds on the other hand. ...

... Public . Science . ... Science Users Information Science Software ESO-MIDAS jump to navigation jump to content . ... Publications with ESO Data . ... ESO-MIDAS . ... The short statement of the GNU license is included in every MIDAS file; the full text is included as a separate file in the ESO-MIDAS Release. ... Manual pages,installation guides and other documentation are generally released together with the source code and can also be obtained from the ESO-MIDAS ftp account (see below). ...

... We are using Canadian Galactic Plane Survey l 74.2њ, -3.6њ < b This poster gives preliminary results for a full-fledged analysis of the gas properties and distribution of HISA features in the CGPS. ... where T ON and T OFF are observed brightnesses on and off the HISA feature, T S is the spin or excitation temperature of the HISA gas, tau is its optical depth, T C is the continuum intensity, and p is the fraction of H I emission lying behind the HISA feature. ... GIF | ...

XMM­Newton CCF Release Note XMM­CCF­REL­135 EPIC MOS Spectral Response Distribution R. D. Saxton, S. Sembay 10 Dec 2002 1 CCF components Name of CCF VALDATE EVALDATE List of Blocks changed CAL VERSION XSCS flag EMOS1 REDIST 0020.CCF 1999­12­10 2000­07­15 CCD REDISTRIBUTION ­n 3.152 NO EMOS1 REDIST 0021.CCF 2000­07­15 2000­11­09 CCD REDISTRIBUTION ­n 3.152 NO EMOS1 REDIST 0022.CCF 2000­11­09 2001 ­04­18 ... Mos­1, epoch 1 (rev 62) imaging mode response, all patterns. ...

ASTRONOMICHESKII TSIRKULYAR No.1573, 2010 April 12 1995 2009 . A Comparison of the Latitudinal Variations of the Methane Absorption Bands on Saturn's Disk at Equinoxes 1995 and 2009 Abstract. The observations of Saturn at last equinox 2009 have detected significant differences of the latitudinal variations of the methane absorption from observed at 1995 equinox . ... 1995 . 2008- 2009 , ­ . ... 4 ( 580-880 ) , (.1) , 2008-2009 . ... 2 , 4 725 1995 2009 . ... 1995 2009 15 , 1980 1995 . ...

... 2006 . ... Comparison of total ozone distribution in the high latitudes of both hemispheres SCAR XXIX Open Science Conference, 2006, 12-14 July, Hobart, Australia - Abstract Volume. ... Analyses of spectra, stability and eigenmode transverse small-scale oscillations in the inner Earth magnetosphere. 6th Open Conference of Space Projects Evpatoriya, September 2006, Abstracts . ... Ps6 pulsations in the Earth magnetosphere. 5th Open Conference of Space Projects Evpatoriya, September 2005, Abstracts . ...

... Class . ... FRAMES NO FRAMES All Classes . ... FIELD | CONSTR | METHOD . DETAIL: FIELD | ... java.lang.Object ij.plugin.Distribution . ... public class Distribution . ... This plugin implements the Analyze/Distribution command. ... This method is called when the plugin is loaded. void . ... Constructor Detail public Distribution () . ... This method is called when the plugin is loaded. 'arg', which may be blank, is the argument specified for this plugin in IJ_Props.txt. ...