... Although minimisation of the absolute deviations or, more precisely, the square of deviations between data and a parametric model is not the only technique to derive optimum values for parameters, it is generally used because it is straightforward and theoretically justified. There are no basic difficulties in extrapolating this method for the case of a model function with non--linear parameters if is continuous in parameter space. ... This definition of sigma will be used throughout this chapter. ...

... epevents (epevents-6.42.2) [?? ... A pattern analysis is made which yields four distinctive parameters: the number of pixels in the structure, the running pattern number within a frame, the pattern orientation (zero for singles and unresolved patterns; otherwise a three digit code, with the last digit specifying the orientation of the pattern and the first two the position of the pixel on the pattern ) and the distance (in pixels ) to neighbouring ...

The following general subroutines belong to the category CONVOLUTION: . ... Determine parameters of 2d-gaussian needed to convolve 'oldbeam' to 'newbeam' ( convpars.shl ) . ... Fill array with values of (rotated) 2-d Gauss ( fillgauss2d.c ) . ... Calculate convolution function parameters for use in smoothing to a bigger (rotated) beam and determine scale factor to be able to preserve definition of brightness temperature. ( presmooth.shl ) . ...

... This generalization gives rise to the four-dimensional time-frequency-scale-chirprate (TFSC) parameter space. ... We then consider the use of multiple analyzing wavelets/windows, first to generalize Thomson's method of spectral estimation to the TF plane, and then to further generalize this result to the chirplet transform. ... We generalize autocorrelation and cross-correlation by using the signal itself (or another signal) as a ``mother chirplet''. ...

Topics covered by the IAU Symp. ... Do all galaxies have stellar halos? ... Stellar tracers of the MW halo and nearby galaxies; the stellar population of star clusters and their contribution to the galaxy halos . ... NEW: Scientific program of the IAU Symposium 317 can be downloaded here . ... GLOBAL PROPERTIES OF STELLAR HALOS FROM THE MILKY WAY TO EXTERNAL GALAXIES . ... DISCRETE CONSTITUENTS OF STELLAR HALOS IN THE MILKY WAY AND IN EXTERNAL GALAXIES : PLANETARY NEBULAE and GLOBULAR CLUSTERS . ...

... Gas in Thermodynamic Equilibrium Conditions. Stellar Spectrums. Physical Basis of Spectral Classification of Stars. ... The Sun. General Stellar Feature of the Sun. ... Distribution of Brightness in Solar Disc. ... Chromosphere - Observations on Limb and Disc of the Sun, Basic Elements of Structure, Spectrum, Physical State. ... Solar Corona - Observation, Structure, Spectrum, Polarization, Dynamics, Rotation, Physical Condition. ... Interstellar Dust. ... Two Groups of Big Planets. ...

... Consequently, it is inappropriate to expand and in ordinary spherical harmonics. The proper expansion expresses both and simultaneously in terms of a particular order of generalized spherical harmonics. ... Generalized spherical harmonics start at , and for each , . ... Generalized spherical harmonics obey a sum rule analogous to a familiar one for ordinary spherical harmonics, but it includes an explicit phase factor which depends on the orientation of the two lines of sight. ...

... commands . scl . ... echo on | off : echo input commands to "stdout" . end : exit program . exit : exit program . ... Valid parameter groups are currently: meth, cont, data, slv, syn, gen, macro, all define <macro_name> : define a macro . The macro is defined by additional commands on the same and subsequent input lines up to the next "end" statement. For example: define my_fit; slv_teff1 25.0 1.0; solve; end run >macro_name< : run a previously defined macro . ...

... Space flight . Crew training . ... Space camp . ... mastering the theoretical principles of astronautics; . studying the main components of a manned space complex - transporting spacecrafts (of the types "Soyuz", "Shuttle", ASS (Aviation Space System), etc.), orbital complexes (of the ISS (International Space Station) type), launching complex, Flight Control Center (FCC), search and rescue complex; . ... acquiring theoretical knowledge and initial practical skills of work in spacesuits; . ...

Next: IRAF/PROS Up: PROS USERS GUIDE Previous: Contents . This guide is designed to aid the new user in deriving scientific results from reduced x-ray data using the SAO PROS software system which runs under IRAF as package ``xray". ... If you are using the IRAF/PROS system at SAO, you will find the siteguide , by Belinda Wilkes, a useful guide to site-specific procedures. ... Spatial analysis . ... Next: IRAF/PROS Up: PROS USERS GUIDE Previous: Contents rsdc@cfa.harvard.edu . ...

... HST Phase II Proposal Instructions for Cycle 20 > Chapter 2: The Basics of Phase II Proposals > 2.4 Examples and General Advice . ... For more information, see Section 3.4 on page 36 . First, you have to acquire an object successfully that is at or near the position at which the science observation will be made. ... An offset is explicit when you use a Special Requirement such as POS TARG (see POSition TARGet <X-value>,<Y-value> ) to move the telescope away from the position acquired. ...

... A2754 Arecibo Observatory Date Received: 2013-Sep-02 15:38:39 William E. Gordon Telescope Observing Time Request COVER SHEET Section I - General Information Submitted for Sep 1 2013. ... Remote Observing Request Observer will travel to AO Remote Observing X In Absentia (instructions to operator) Section I I - Time Request The following times are in LST. For these observations night-time is required. ... Section V - Observing List Target List Outer Galaxy: 175 <l <207 deg, b from +1 to -2 deg 4 ...

... 2.3 Establishing the Extragalactic Distance Scale . ... 2.3.2 The Second Rung: Distances to stellar clusters . ... 2.3.4 Distances to Local Group Galaxies . ... The Luminosity Function of Planetary Nebulae . ... 3.2.2 Clusters of Galaxies . ... 4.2 Evidence for Dark Matter as a Function of Scale Size . ... 4.3 Other Dark Matter Indicators for Galaxies . ... What is the nature of the large-scale distribution of matter in the universe as traced by the three-dimensional galaxy distribution? ...

... The perceptron structure, on the basis of which the database is built, is defined by a number of the input and output parameters and a required accuracy. ... The output perceptron data are the expansion coefficients of the scattering matrix elements in series of the generalized spherical functions. ... As the cluster structure depends on the generation conditions the expansion coefficients were averaged over 5--7 realizations of the clusters (for N . ... is the coefficient number. ...

... Will there be interactive user accounts (telnet/SSH)? Will users be using it as a workstation or is it a server? ... The main difference in today's world between computers is usually not the hardware, or even the OS (Linux is Linux, NT Server and NT Workstation are close family, etc.), it is in what software packages are loaded (Apache, X, etc) and how users access the machine (interactively, at the console, and so forth). ... Keep users off of the servers. ... Restrict physical access to servers. ...

... The Workshop on Precision Physics and Fundamental Physical Constants is organized by the Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo , Russian working group on Fundamental constants , Bogolyubov Laboratory of Theoretical Physics , Joint Institute for Nuclear Research (JINR), Dubna and supported by the Russian Foundation for Basic Researches and the Dynasty Foundation . The Workshop will be held in St. Petersburg from October 7 until October 11, 2013. ...

GiST home | Introduction | ... GiST is a height-balanced tree structure with tree nodes containing (p, ptr) pairs, where p is a predicate ( attribute ),which is used as a search key, and ptr is the pointer to data for a leaf node or a pointer to another tree node for a non-leaf node. ... Every node contains between min and max index entries unless it is the root . ... For each index entry (p, ptr) in a non-leaf node, p is true when instantiated with the values of any tuple reachable from ptr . ...

... The general scientific activity of the stuff is not a static phenomena, but mainly it lies in the direction, reflected in the famouse book by Ya.B.Zeldovich and I.D.Novikov "Relativistic Astrophysics". ... They can be separated into three main branches: "discology" (prof. N.I.Shakura, N. Ketsaris and grad.student G.V. Lipunova); astrophysics of neutron stars, evolution of close binaries and related problems (prof. V.M.Lipunov , prof. K.A.Postnov , drs. ...

General Information . ... The conference is organized by the Sternberg Astronomical Institute (SAI) of Moscow University and the IAU Working group "Site-testing Instruments" . ... Use of site data in telescope operation and adaptive optics. ... Recent conferences on this subject (2007, 2008) demonstrated great interest of the community, hence the need for a new meeting. ... Unlike previous recent conferences, this meeting will cover all aspects of site monitoring for optical/IR astronomy. ...