... Keywords: Proper Motions, Schmidt Plates, Astrometry, Guide Star Catalog, Palomar Sky Survey . In this paper we describe a program of determining proper motions from digitized scans of 1950's-era Palomar Sky Survey (POSS) Schmidt Plates and 1980's-era Palomar Oschin Schmidt `Quick V' plates that were taken for the Hubble Space Telescope ( HST ) Guide Star Catalogue. ... Arrows indicate the magnitude and direction of the proper motion for the stars. ...

REPEATABILITY OF THE FOS G130H GRATING EXTERNAL WAVELENGTH ZEROPOINT ANURADHA KORATKAR and IAN EVANS Space Telescope Science Institute,3700 San Martin Drive, Baltimore, MD 21218 Abstract. Measurements of the position of the geo­coronal Lyff are used to determine the repeata­ bility of the G130H grating and the external wavelength zeropoint for the first time since launch. ... The 1oe repeatability of the wavelength calibration is 0.159 љ A (0.64 pixels or 39 kms \Gamma1 ). ...

... Extragalactic Surveys . I will review our current understanding of the history of supermassive black hole accretion from deep and wide-area X-ray surveys. ... Monday: Type I and II AGN, Absorption, XBONGs, Tuesday: AGN correlation functions, LSS, environments . ... Monday: 'Normal' Galaxies, Tuesday: Cluster Formation and Evolution . ... Deep X-ray surveys are providing crucial information on the evolution of AGN and galaxies. ... The luminosity function and evolution of normal galaxies . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The Ursa Major group is a nearby stellar supercluster which, while not gravitationally bound, is defined by co-moving members. DD UMa is a Scuti star whose membership in the Ursa Major group is unclear. The objective of this study is to confirm the membership of DD UMa in the Ursa Major group, as well as perform a detailed spectral analysis of the star. ...

Masses of some binary asteroids obtained by the dynamical method . ... The method of regularization of A.N. Tikhonov was used in this paper along with the least squares method on a stage of solution of the ill-conditioned systems of linear equations to determine masses of asteroids by the dynamical method. ... For these asteroid values of their masses were obtained by other authors using observations of satellites. ... binary asteroid, mass of asteroid, dynamical method. ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Australia Telescope 20GHz Survey . ... Bright prospects: Comparing the H Survey with large-scale radio continuum emission . ... Prospects for comparisons between the AAO/UKST H \ survey and large-scale radio continuum emission are considered, with particular reference to the recently completed Parkes 2.4-GHz survey of the southern Galactic Plane. ...

Trudy GAISH, vol. LXV, 1996 . Abstracts . The global distribution of average (5 O x 5 O ) depths . of Mohorovicic discontinuity on the Earth . ... Such analysis allows detecting whether the sources of the largest anomalies reside within the Earth's core. This is possible if the limit depths of the sources exceed the depths of the core-mantle boundary. ... by Pasinok S.L. Influence of the Earth’s cover on the polar free oscillation of the Earth’s inner core is considered. ...

... The metal abundance gradient in the disk of the Galaxy is found from stars with abundance determination from detailed analysis: d[Fe/H]/dR=(-0.05?0.01) kpc -1 . It is shown that the gradient can be explained by the fact that the disk is constituted of two metallicity groups of stars with an abundance jump between the groups. ... По звездам с определениями [Fe/H] из детального анализа найден градиент металличности в диске Галактики: d[Fe/H]/dR=(-0.05?0.01) кпс -1 . ...

... We report the results of a millimeter interferometric survey of compact 3 mm continuum sources in the inner 5.5'x5.5' region of the Serpens core. We detect 32 discrete sources above 4.0 mJy/beam, 21 of which are new detections at millimeter wavelengths. ... The mass spectrum of the clumps, dN/dM~M^(-2.1), is consistent with the stellar initial mass function, supporting the idea that the stellar masses in young clusters are determined by the fragmentation of turbulent cloud cores. ...

... Meta Index / Home Page / Some functions for testing/debugging . This function returns .true. if the given pair of values agree with each other in the given precision (order), or .false. otherwise. LOGICAL(bool) FUNCTION isNearlyEqual(cmp, compared, precision) REAL, intent(in) :: cmp, compared ! or INTEGER INTEGER, intent(in) :: precision END FUNCTION isNearlyEqual . For the pair of the first two arguments, any combination of int8 , int16 , int32 , single and double is allowed. ...

... The effective temperature Te = 13700+ 500 and the surface gravity log g = 3.75 ± 0.25 were determined. ... It is shown that the ionization equilibrium for Fe I - Fe II and Mn I Hn II lines is maintained only for the second, more cool model. Out of 10 considered elements the largest overabundance was found for Mn (2.0 dex ), Ga (4.5 dex) and Hg (5.5 dex) . ... Hence it follows also that Y and Ce overabundance cannot exceed 2.5 dex. ...

... In this work, we investigate some a new possibility to estimate correlations between radio source position catalogs (RSC). ... Catalogs AUS AUS AUS AUS AUS AUS BKG BKG BKG BKG BKG GSF GSF GSF BKG GSF IAA MAO OPA USN GSF IAA MAO OPA USN IAA MAO OPA USN MAO OPA USN OPA USN GSF IAA IAA IAA MAO With correlations, the system to be solve consists of the equations: The key point is to obtain a reliable estimates of ij. ...

... Structure of superconducting TlBa 2 (Ca 0.87 Tl 0.13 )Cu 2 O 7 single crystals with T c =80K. Abstract: . The crystal structure of single crystals of the 1212 phase in the system TL-Ba-Ca-Cu-O has been determined: a =3,8472(5), c =12,721(3) Angstrom, sp.gr. ... The chemical formula of this phase has been refined: TlBa 2 (Ca 0.87 Tl 0.13 )Cu 2 O 7 , T c =80 K, Meissner effect is 75-80%. ...

... Line radiative transfer in C 18 O, HCO + , and CS lines is considered in a spherically symmetric chemo-dynamical model of a starless core, evolution of which is driven by the ambipolar diffusion. Theoretical line profiles are compared to observational data on the well-known L1544 core, which is one of possible candidates for collapsing protostellar clouds. ... Comparison between modelled and observed spectra suggests that L1544 has flattened structure and is observed at some inclination. ...

... Automated Spectral Classification Using Neural Networks E. F. Vieira Laboratorio de AstrofТРsica Espacial y FТРsica Fundamental P.O.Box 50727, 28080 Madrid, Spain, Email: efv@lae#.esa.es J. D. Ponz GSED/ESA, Villafranca P.O.Box 50727, 28080 Madrid, Spain, Email: jdp@vilspa.esa.es Abstract. We have explored two automated classification methods: supervised classification using Artificial Neural Networks (ANN) and unн supervised classification using Self Organized Maps (SOM). ...

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. ...

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. ...

... 1Wills Accurate measurements of relative flux density have been made between frequencies of 468 and 5009 MHz for 300 radio sources selected from Parkes catalogue. ... Excluding the incertainties in scaling these flux densities to an absolute system, rms errors vary from 0.24 Jy and 2.4 % at 635 MHz to 1.8 % at 2700 MHz; uncertainties in "absolute" scaling are thought to be about 45 %. ... Some sources whose spectra may be useful for flux density calibration are noted. ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...