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1101. XHelp: A Help Navigator for the IRAF System
... Help pages are formatted and converted automatically to HTML for presentation in the GUI (or on the WWW), or to Postscript for hardcopy output. ... XHelp is a GUI browser for the IRAF help system which uses existing help facilities in IRAF to locate documents, but provides a familiar web-browser interface. ... Easy access to auxiliary help documents such as package ``system documents'' and task source code, . ... Extensions to LROFF to support HTML style document links within IRAF help pages. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P3-01/ -- 10.6 Кб -- 11.10.2000
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass99/P3-01/index.html -- 10.6 Кб -- 11.10.2000
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1102. A C Programming Interface to the IRAF VOS Libraries
... Up: Iraf Packages . ... We have developed a methodology for building C programming interfaces to the IRAF Virtual Operating System (VOS) libraries. The IRAF VOS is the fundamental programming interface to the IRAF system, providing the environment for the development of scientific applications. C interface functions for the more commonly used IRAF, STSDAS, and TABLES libraries, as well as the semi-automated interface generation mechanism comprise the C Virtual Operating System interface, CVOS. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-28/ -- 12.5 Кб -- 11.10.2000
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass99/P2-28/P2-28.html -- 12.5 Кб -- 11.10.2000
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1103. The ``stecf'' IRAF Layered Package
... We have collected together many of the astronomical applications developed as IRAF tasks at the Space Telescope European Coordinating Facility (ST-ECF) into a new IRAF layered package called ``stecf''. ... For many years the ST-ECF has developed IRAF tasks and packages for HST and related data analysis. ... The impol package consists of five tasks to reduce, simulate and plot imaging linear polarimetry data taken with the HST instruments with polarizing facilities - currently FOC, NICMOS and WFPC2. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-21/ -- 14.1 Кб -- 11.10.2000
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1104. A New IRAF Catalog Access Tool for Astrometry
... A new IRAF catalog access tool for astrometry is described. ... In this paper we describe ASTOOL an IRAF astrometry task which provides direct access to several astrometric catalog and image servers, and meets both the flexibility and extensibility requirements. ... Sections III, IV, and V discuss the catalog access configuration file, the catalog access applications programming interface, and the IRAF network driver, all of which are used provide network access to ASTOOL. ... The Catalog Access API...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-46/ -- 16.7 Кб -- 11.10.2000
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1105. GIRA - Two Channel Photometric Restoration
... We report on the status of a two channel photometric restoration technique and its current implementation as an IRAF task called GIRA. This method is particularly suited to stellar photometric measurements in crowded fields or in images where an extended structured background is present. ... One such method is a two channel photometric restoration method known as GIRA first conceived by one of us (L. B. Lucy) and which is under development at the ST-ECF (Pirzkal et al. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-55/ -- 16.8 Кб -- 11.10.2000
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1106. QDPHOT: An IRAF Task for Quick & Dirty Photometry
Next: GIRA - Two Channel Photometric Restoration . ... I presented a new fast CCD stellar photometry task for IRAF called QDPHOT (Quick & Dirty PHOTometry) which is designed to quickly produce good CCD stellar photometry for applications where speed matters and every second is important. ... QDPHOT typically takes just a few seconds to analyze a single CCD of two aligned WFPC2 observations in two filters [e.g. 2-3 seconds on a 200MHz Sun Ultra1 workstation]. ... Figure 1: A QDPHOT example. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-39/ -- 6.1 Кб -- 11.10.2000
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1107. Iraf Packages
Table of Contents - Subject Index - Author Index - . Astronomical Data Analysis Software and Systems IX . ... 216, 2000 . ... QDPHOT: An IRAF Task for Quick & Dirty Photometry . ... N. Pirzkal, R. N. Hook, and L. B. Lucy . A Spectroscopy Exposure Time Calculator for IRAF . ... The ``stecf'' IRAF Layered Package . R. N. Hook, J. Walsh, N. Pirzkal, and W. Freudling . ... Copyright 2000 Astronomical Society of the Pacific , 390 Ashton Avenue, San Francisco, California 94112, USA . ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/Iraf.html -- 3.8 Кб -- 11.10.2000
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1108. A Commodity Computing Cluster
... Up: Data Analysis Tools, Techniques, and Software . Previous: An Automatic Astronomical Classifier Based on Topological Neural Networks . ... Teuben, P. J., Wolfire, M. G., Pound, M. W., & Mundy, L. G. 2000, in ASP Conf. ... P. J. Teuben, M. G. Wolfire, M. W. Pound, L. G. Mundy . ... We have assembled a cluster of Intel-Pentium based PCs running Linux to compute a large set of Photodissociation Region (PDR) and Dust Continuum models. ... 2000). ... Teuben, P. J. 2000, BIMA memo (in preparation) . ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-31/ -- 11.3 Кб -- 11.10.2000
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1109. MKRMF: Multi-Dimensional Redistribution Matrices
... A response matrix is a discrete representation of a given instrument's response to incoming photons. ... This presentation is a preliminary report on MKRMF, a new tool developed by the Chandra X-ray Science Center (CXC), to calculate RMFs appropriate for the variety of science instruments on-board Chandra (Wise 1998). ... These external redistribution functions are stored using a new FITS format developed by the CXC for encapsulating functions. ... axes file : . ... list file : . ... CXC RMF Format ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-57/ -- 17.2 Кб -- 11.10.2000
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1110. DIRT: The Dust InfraRed Toolbox
Next: Software for Geodynamical Researches Used in the LSGER IAA . ... We present DIRT , a Java applet geared toward modeling a variety of processes in envelopes of young and evolved stars. ... A1.00E+00 /I1.00E+13/models.tgz /I3.00E+13/models.tgz A1.00E+01 /I1.00E+13/models.tgz /I3.00E+13/models.tgz . A5.00E+02 /I1.00E+13/models.tgz /I3.00E+13/models.tgz Each models.tgz file is untarred into the temporary area on the server, from which the model data are transferred to the client applet. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-32/ -- 12.1 Кб -- 11.10.2000
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1111. Starfinder: a Code for Crowded Stellar Fields Analysis
... Up: Data Analysis Tools, Techniques, and Software . ... Starfinder is an IDL code for the deep analysis of stellar fields, designed for well-sampled images with high and low Strehl factor. ... If the PSF is constant across the frame, the observed stellar field may be considered a superposition of shifted scaled replicas of the PSF itself, lying on a smooth background originated by faint unresolved stars and other possible sources. ... Astrometric and photometric analysis by local fitting. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-53/ -- 13.0 Кб -- 11.10.2000
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1112. Data Analysis and Simulations of Spectroscopic and Continuum Mapping with the
... The ISOPHOT Interactive Analysis (PIA) is the software tool of choice for the scientific analysis of ISOPHOT data. ... Special enhancements concerning the analysis of imaging spectrophotometry data as well as the inclusion of a raster data simulation package within the PIA capabilities are discussed here. ... This paper deals with the enhancements in the PIA capabilities concerning imaging spectrophotometry, as well as with a PIA associated package for simulation of mapping observations. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-50/ -- 15.3 Кб -- 11.10.2000
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1113. Instance-Based Machine Learning Methods for the Prediction of Stellar
... Up: Data Analysis Tools, Techniques, and Software . ... We have performed an experimental comparison of several instance-based machine learning algorithms applied to the problem of automatically estimating stellar atmospheric parameters from their spectral indices. ... We envisage the use of such methods for large spectroscopic surveys currently in progress. ... Metric distance minimization (MDM) is perhaps the simplest instance-based learning method. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-47/ -- 14.6 Кб -- 11.10.2000
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1114. ISIS: An Interactive Spectral Interpretation System for High Resolution X-Ray
... The Interactive Spectral Interpretation System (ISIS) is designed to facilitate the interpretation and analysis of high resolution X-ray spectra like those obtained using the grating spectrographs on Chandra and XMM and the microcalorimeter on Astro-E. It is being developed as an interactive tool for studying the physics of X-ray spectrum formation, supporting measurement and identification of spectral features, and interaction with a database of atomic structure parameters and plasma emission...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-39/ -- 13.2 Кб -- 11.10.2000
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1115. The Earth Occultation Technique with the Burst and Transient Source Experiment
... Up: Data Analysis Tools, Techniques, and Software . ... The Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory (CGRO) is successfully being used as an all-sky hard X-ray monitor. ... The Burst and Transient Source Experiment ( BATSE ) on the Compton Gamma Ray Observatory ( CGRO ) is being used as an all-sky monitor of point-like hard X and ray sources in the 20 keV-1 MeV energy range (Harmon et al. ... For most sources, 10-20 clean steps per day are available. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-42/ -- 16.5 Кб -- 11.10.2000
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1116. Object Classification as a Data Analysis Tool
... Up: Data Analysis Tools, Techniques, and Software . ... Object classification methods can be a valuable data analysis tool for large, multi-parameter data sets. ... This set of known objects is called the training set because it is used by the classification programs to learn how to classify objects. ... The choice of object features and the construction of high quality training data sets are important steps in developing a classifier, as is measuring the accuracy of the classifier. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/O6-01/ -- 35.4 Кб -- 11.10.2000
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1117. Representations of World Coordinates in FITS
... Up: Data and Image Processing . ... The original FITS papers provided a simplified, non-specific method for describing the physical coordinate values of image pixels. ... The initial paper describing the Flexible Image Transport System, or FITS format (Wells, Greisen, & Harten 1981) proposed keywords to describe the physical coordinates of image data. ... Representations of world coordinates in FITS . ... Representations of celestial coordinates in FITS . ... by Greisen (spectral and velocity axes) ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-29/ -- 15.6 Кб -- 11.10.2000
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1118. Data Access Layer to Support Variable Inputs Using C
Next: (Re-)Configurable Data File Writing At UKIRT . ... We needed a layer of software that would dissociate a data column (element) from any particular file. ... The library functions sort the input files by type, locate the required elements in those files and provide access to them in a time-correlated fashion. ... This data access layer is built on the concept of a data ``element''. ... When the input data is opened, the first file of each type is searched for the elements to be accessed. ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-63/ -- 15.0 Кб -- 11.10.2000
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1119. Dual-Beam Rastering and Deconvolution Techniques for SCUBA
... Up: Data and Image Processing . ... This paper discusses the dual-beam rastering technique used at the JCMT with particular emphasis on the data reduction algorithms used to deconvolve the chopped signal and remove the effects of sky-noise fluctuations. Direct deconvolution techniques (Fourier deconvolution) and non-linear methods (Pixon) are discussed. ... Once the dual-beam images have been generated they are combined and the chop function is deconvolved in Fourier space 2 . ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P2-56/ -- 14.7 Кб -- 11.10.2000
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1120. Compression of Mosaic CCD Images with CompFITS2
Next: A FITS Image Compression Proposal . ... The advent of large CCD mosaics is creating a challenge for archive centers. ... The result is a valid FITS file -- compFITS2 stores the compressed and uncompressed data for each extension in a binary table extension, thus preserving the primary and extension headers in a readable form. ... Plug-in capability for any compression program that takes data on stdin and writes to stdout (e.g. compact , compress or gzip ) to compress the MSB part of the image; . ...
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Ссылки http://www.adass.org/adass/proceedings/adass99/P1-09/ -- 23.9 Кб -- 11.10.2000
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