... Table of Contents - Subject Index - Author Index - Search . Astronomical Data Analysis Software and Systems XIII . ... DRACO and the Italian Participation in Virtual Observatory Activities . ... Organization of Data Sets in Virtual Observatories . ... Spectral Data Models for the Virtual Observatory . ... R. Hanisch, G. Greene, A. Linde, R. Plante, A. M. S. Richards, E. Auden, K. T. Noddle, and W. O'Mullane . ... Astronomical Data Query Language: Simple Query Protocol for the Virtual Observatory . ...

... spectrum . ... sfit . ... define >macro_name< : define a macro . ... meth_range <w1> <w2>: Set wavelength range for fit . data_spectrum <name> : data in "spectrum" format . ... data_sigma <sigma> : define mean standard error in data . ... data_line_set | ... NB: synth uses multiple calls to spectrum , so various Spectrum commands may also be required. synth : find optimum fit by adjusting abundances, v turb , v sin i , and v rad . ... save <fit> : Save the spectrum and best fit from synth . ...

... 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). ...

... We discuss the application of the Pixon Based Image Restoration Method on spectroscopic HST data and compare the results with those obtained from the Richardson-Lucy and Jansson algorithms. In order to better evaluate the performance of the various algorithms we have also used artificial data. Keywords: Spectral restorations, Pixons, Richardson-lucy, Jansson . ...

... 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. ...

... Подставки под телевизоры и Hi-Fi . ... Теплая детская шапка-бини Reima Auva идеально подойдет для прогулок в прохладное время года. ... Современный дизайн и расцветка делают эту шапку модным и стильным предметом детского гардероба. ... Цвет: разноцветный . Коллекция: Весна-лето 2016 . ... Пол: Мужской . ... Цвет: мультиколор. ... Сезон: Весна-лето 2016. ... Цвет: черный . ... Цвет: белый . ... Пол: Женский . ... Цвет: синий . ... Barkan 34.C.B 4D кронштейн - Barkan - Barkan . ...

... Recent Band Averaged Measurements . Gain, SEFD, Tsys, and Beam width . ... This is the band averaged Gain, SEFD, Tsys, and Beam width for ALFA taken at regular intervals. ... For performance figures as a function of frequency, see the ALFA spectral scans . ALFA spectral parameters & calibration . ... The fit parameters for the spectral scans can be downloaded. ... Details are given in the memo by Desh: ALFA spectral parameters & calibration . ... Spectral scans across the full ALFA band. ...

... Archives . ... Another deduced conclusion from reading preprints listed in arxiv/astro-ph is that astronomers tend to confuse classification and clustering and to mix up methodologies. They tend to think any algorithms from classification or clustering analysis serve their purpose since both analysis algorithms, no matter what, look like a black box . ... Category: Algorithms , arXiv , Astro , Bad AstroStat , Cross-Cultural , Data Processing , Frequentist , Jargon , Methods , Stat | ...

... TBB: retain a few seconds of raw data Off-line follow-up Coherent dedisperse The Matched Filter Optimal detector for a known signal in known Gaussian noise Matches expected signal shape (template, h) to data (s), and sums Pros: optimal for a given Gaussian dataset Cons: requires full signal knowledge , not blind to signal shape Performance : signal -to-noise ratios Template matched to ...

... A comparison of the positions of the new HSS ELGs in these diagrams shows that our classification appears to be self-consistent for all BCGs, and, therefore, is rather reliable. It is interesting to compare the positions in diagnostic diagram of the new HSS BCGs with those of the well studied BCGs from the SBS sample (Izotov et al. [ 1994 ], [ 1997b ]; Thuan et al. ... Most of the SBS BCGs populate the region with [N II ] ?/ ... We discover two new HSS BCGs located in this region. ...

SiD Tracking using VXD Nick Sinev, University of Oregon Plan Motivation Track reconstruction algorithm Performance for single tracks Does it have any limits ? With backgrounds To do Motivation Tracking in SiD is a challenge, especially pattern recognition. ... Limitations caused by reconstruction speed consideration In the presence of high number of background hits, number of 3-point combinations used as track seed became enormous if we consider all combinations. ...

... The actual cross-correlations were done as follows: north of WGACAT was correlated with the GB6 catalog with a correlation radius of one arc minute. ... We therefore cross-correlated WGACAT with the GB6 and PMN radio catalogs with a 1.5 arcmin radius. ... As a result of this experiment, we then added to the WGACAT/PMN candidate list the 29 unclassified sources obtained from the 1.5 arcmin correlation and having PSPC offsets arcmin, ratio between X-ray/radio offset and positional error , and . ...

... Phase Correction Algorithms | ... R. Bolton, B. Nikolic, J. Richer, The Power Spectrum of Atmospheric Path Fluctuations at the ALMA Site from Water Vapour Radiometer Observations , ALMA Memo 592, PDF , ALMA Memo series entry . Emily I. Curtis, Bojan Nikolic, John S. Richer and Juan R. Pardo, Atmospheric dispersion and the implications for phase calibration , ALMA Memo 590. ... B. Nikolic, ALMA Phase Calibration/Correction , Presented at Algorithms 2008 Workshop, Oxford, December 2008. pdf . ...

... specadd is a F90 module which does the following . module specadd Read input sets Check that they are spectral files Create an output multiple spectrum file If (useoldsumset) is true copy oldsumset in output sumset create those columns not present in oldsumset else create all necessary columns endif Insert n (n=numberOfSingleSpectra) new rows in sumset For each of the n single spectra in sets add single spectrum to sumset End end module specadd . ...

... Sky: . ... Temperature K . Dark current e - /s/pix . Emissivity . ... Adopted integration time s . ... Object signal e - /pix . Sky thermal signal e - /pix . Sky OH continuum signal e - /pix . Sky OH line signal e - /pix . Telescope thermal signal e - /pix . AOS thermal signal e - /pix . Dewar signal e - /pix . Dark signal e - /pix . Total signal e - /pix . ... This tool models the performance of the Gemini Near-infrared Integral-Field Spectrograph (NIFS) . ...

Warning: This is a collection of pointers (growing since 1994) about me, not a home page! ... My PostgreSQL page (locale support, GiST, tsearch2) . ... OpenFTS full text search engine . ... AstroNet (in Russian) - Knowledge Base on Astronomy . ... nature.web.ru (in Russian) - Scientific network . ... Oren Etzioni's Home Page (Web Clustering) . ... Richard K. Belew home page (AI in search engines) . ... Sabine Mayer home page - staircase join-enhanced PostgreSQL 7.3.3 . ... oleg@sai.msu.su ...

The overall efficiency (including atmospheric transmission, reflectivity of the telescope mirrors and overall efficiency of the optics and of the detector) for broad-band imaging should be about 25% in H and K, and about 15% in J. The main noise source for both broad- and narrow-band imaging should be the photon noise associated to the background+source flux. ... Flat fielding (and possibly background subtraction) might increase the noise by a factor 2 ? ...

... 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. ...

... For HP-UX 9.X: Upgrade to 10.20 . For HP-UX 10.[ 00|01|10]: Upgrade to 10.20 . ... This will allow you to configure the size of the TCP connection lookup hash table. ... If folks are running Apache on a PA-8000 based system, they should consider "chatr'ing" the Apache executable to have a large page size. ... The change can be validated by running Glance and examining the memory regions of the server(s) to make sure that they show a non-trivial fraction of the text segment being locked. ...

... Space Research Institute . ... Main research and development work completed in 2009 and ready for implementation . ... Development of the Northern Eurasia land cover map based on medium spatial resolution satellite data. ... The research and development has been completed of the first in Russia and in the whole world high-speed digital streams decoder for space and satellite channels with extremely high noise levels. ... Main research and development work completed in 2008 and ready for...