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201. Slitless Multiobject Spectroscopy with FOSC Type Instruments
... We present a simple, effective technique that allows the contemporary spectroscopy of all the objects, up to a limiting magnitude, contained in a 100 arcmin 2 field. ... For this reason, we have developed a technique, that allows the simultaneous spectroscopy of all the objects included in a square field of view with 10 side, using the widely used FOSC-type optical spectrometer and camera focal-plane instruments. ... Thus the flux calibration of the slitless spectra was also straightforward. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/polcarov.html -- 14.2 Кб -- 12.06.2006
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202. A Queriable Repository for HST Telemetry Data, a Case Study in using Data
... The Hubble Space Telescope (HST) generates on the order of 7,000 telemetry values, many of which are sampled at 1Hz, and with several hundred parameters being sampled at 40Hz. ... As part of the recent NASA initiative to re-engineer HST's ground control systems, a concept arose to apply newly available data warehousing technologies to this problem. ... In addition to routine study and problem analysis, we use telemetry to look for long term trends in how the platform is behaving. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/pollizzij.html -- 14.8 Кб -- 12.06.2006
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203. Modelling Spectro-photometric Characteristics of Eclipsing Binaries
... We present a computer program for modelling energy flux distribution and light curves of eclipsing binaries from far ultraviolet to infrared regions. The Roche model is assumed. Proximity effects of components (reflection of radiation and surface gravity darkening) are taken into account. ... Figure 1: The surface temperature distribution for Algol A-B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation effect. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/polubekg.html -- 15.8 Кб -- 12.06.2006
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204. ADASS VII Preface
... Conference Photograph . ... The 1997 conference of the Astronomical Data Analysis Software and Systems (ADASS) Conference series was organized by the Space Telescope European Coordinating Facility and the European Southern Observatory from 14-17 September, 1997. ... The conference sponsors included the European Southern Observatory . ... Space Telescope -- European Coordinating Facility . ... Space Telescope Science Institute . ... Astronomical Data Analysis Software and Systems VI 1997, ASP Conf. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/preface.html -- 7.5 Кб -- 12.06.2006
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205. Positive Iterative Deconvolution in Comparison to Richardson-Lucy Like
... Positive iterative deconvolution is an algorithm that applies non-linear constraints, conserves energy, and delivers stable results at high noise-levels. This is also true for Richardson-Lucy like algorithms which follow a statistical approach to the deconvolution problem. ... All algorithms resolve the objects, as shown by the reconstructions by Richardson-Lucy in Figure 2 on the right, the algorithm by M?ller in Figure 3 on the left and positive iterative deconvolution in Figure 3 on the right. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/prukschm.html -- 14.0 Кб -- 12.06.2006
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206. Data Analysis Concepts for the Next Generation Space Telescope
... Up: Data Analysis Applications . ... Space Telescope European Coordinating Facility, European Southern Observatory, D-85748 Garching, Germany . ... Several data analysis concepts, developed in response to the nature of HST data, are applicable to the optimum exploitation of data from NGST as well. ... The volume of data flowing from the Next Generation Space Telescope (NGST) will in all likelihood exceed by huge factors that currently being received from HST. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/rosam.html -- 13.9 Кб -- 12.06.2006
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207. OPUS-97: A Generalized Operational Pipeline System
... OPUS is the platform on which the telemetry pipeline at the Hubble Space Telescope Science Institute is running currently. ... The OPUS platform handles communication with the OPUS blackboard; individual processes within this pipeline need have no knowledge of OPUS, of the blackboard, or of the pipeline itself. The OPUS API is an intermediate pipeline product. ... Where the OPUS platform is a generalized pipeline environment, it does not provide the applications which handle mission-specific data. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/rosej.html -- 13.8 Кб -- 12.06.2006
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208. The ISO Post-Mission Archive
... Up: Archives and Information Services . ... It is performing astronomical observations at wavelengths from 2.4-240 microns with four instruments; a camera (2.5-18 microns), a photometer (2.5-240 microns), a short-wavelength spectrometer (2.4-45.2 microns) and a long-wavelength spectrometer (43-197 microns). ... The ISO post-mission archive (PMA) is being designed to fully exploit this legacy by providing access to the data across the Internet. ... For each observation the user specifies: . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/saxtonr.html -- 10.6 Кб -- 12.06.2006
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209. Cost-Effective System Management
Next: Other People's Software . ... Quality system management of computer workstations for astronomy can be achieved with relatively small manpower requirements, if the right cost-effective administrative design decisions are made. ... This is all done with essentially one system manager. ... The system is designed so that one doesn't depend on four or more hosts, (such as a software server, cpu server, data file server, font server, etc.) to get work done. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/schallers.html -- 9.3 Кб -- 12.06.2006
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210. The New User Interface for the OVRO Millimeter Array
... A new user interface for the OVRO Millimeter Array is in the early phase of implementation. ... Caltech's six element millimeter wave aperture synthesis array at the Owens Valley Radio Observatory (OVRO) is in the process of implementing a new user interface to facilitate observing and troubleshooting of an increasingly complex instrument. ... The design utilizes a client server architecture with a Java client providing the user interface on an arbitrary computer on the Internet. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/scotts.html -- 12.2 Кб -- 12.06.2006
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211. GIM2D: An IRAF package for the Quantitative Morphology Analysis of Distant
... This paper describes the capabilities of GIM2D, an IRAF package for the quantitative morphology analysis of distant galaxies. GIM2D automatically decomposes all the objects on an input image as the sum of a S?rsic profile and an exponential profile. ... GIM2D (Galaxy IMage 2D) is an IRAF package written to perform detailed bulge/disk decompositions of low signal-to-noise images of distant galaxies. ... The segmentation image is used by GIM2D to deblend galaxy images. ... Create a residual image. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/sersic.html -- 15.6 Кб -- 12.06.2006
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212. Analysis Tools for Nebular Emission Lines
... Up: Data Analysis Applications . ... The nebular analysis package in STSDAS has been substantially enhanced, and now includes several new ions and diagnostics, as well as updated atomic data for all supported ions. ... The nebular analysis package is a set of applications within IRAF/STSDAS for computing physical parameters in emission line nebulae (such as electron density, N e , and temperature, T e ), as well as ionic abundances of several elements relative to ionized hydrogen. ... Diagnostic . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/shawr1.html -- 18.0 Кб -- 12.06.2006
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213. Identification and Analysis of Binary Star Systems using Probability Theory
... Accurate identification of physical binary star systems has become of increasing interest in recent years. ... Identification of physical binary star systems, with an estimated reliability of such identifications based on the theory of probability, is also important for current and future efforts to find binary star systems that are candidates for observations with the aim of determining their orbits and component masses. ... probability of the proximity of proper motions and ; . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/grochevae.html -- 17.6 Кб -- 12.06.2006
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214. HST Paper Products: A New Way to Look at HST Data
... Two new instruments, STIS and NICMOS, were added to HST during the SM97 servicing mission, each with new types of data that need to be processed. As a result, a completely new system for generating paper products was created which provides a detailed summary of the observations and of the calibrations applied to the observations in the HST pipeline. ... Provides a summary of the observations data quality : The last page(s) of the paper products is a summary of the calibration(s). ... 1 Page each . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/hackw.html -- 14.3 Кб -- 12.06.2006
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215. ASC Coordinate Transformation -- The Pixlib Library, II
... Up: Data Analysis Applications . ... Pixlib, an AXAF Science Center (ASC) coordinate library, has been developed as the continuing effort of (He 1997). ... In this paper, we will discuss the design and the configuration of the pixlib system, and show, as an example, how to integrate the library into ASC data analysis at XRCF. ... The following two functions, in addition to other generic configurations, effectively supply the system configuration for coordinate transformation at XRCF. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/heh.html -- 12.2 Кб -- 12.06.2006
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216. ASCA: An International Mission
... Hughes International/ISAS, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229, Japan . ... The process starts with the electronic submission of a proposal and ends with the delivery of a data tape. ... The methods used for proposing, scheduling, coordinating observations, quick-look plots, and data delivery are presented. ... The database then serves as the common reference point for each country's efforts, and thus the e-mail proposals are used throughout the observation cycle. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/hiltonp.html -- 14.3 Кб -- 12.06.2006
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217. Pipeline Calibration for STIS
Next: Data-flow for the ESO Imaging Survey (EIS) . ... Previous: On the Need for Input Data Control in Pipeline Reductions . ... The CALSTIS program for calibration of Space Telescope Imaging Spectrograph data in the OPUS pipeline differs in several significant ways from calibration for earlier HST instruments, such as the use of FITS format, computation of error estimates, and association of related exposures. ... http://www.stsci.edu/documents/data-handbook.html . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/hodgep.html -- 13.3 Кб -- 12.06.2006
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218. Literature and Catalogs in Electronic Form: Questions, Ideas and an Example:
... Previous: The CDS Information Hub . ... While transforming astronomical journals and catalogs to electronic form, we should have in sight two questions: making it easier for the human reader to locate and comprehend information. ... Software technology has applicable ideas for this problem. ... 27 & 42 Information Bulletin on Variable Stars (IBVS) to electronic form -- including about 15000 pages of previous issues, back to 1961, to the present, computer-typeset ones. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/holla.html -- 14.2 Кб -- 12.06.2006
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219. Data-flow for the ESO Imaging Survey (EIS)
... The ESO Imaging Survey (EIS) uses the ESO New Technology Telescope (NTT) and the EMMI camera to image several square degrees of sky to moderate depth through B,V and I filters. ... Some techniques for attacking the generic problem of mosaicing inhomogeneous overlapping images and extracting catalogues from the resulting coadded frames are described. ... Figure 2 gives an example of a subset of an output coadded EIS image. ... Figure 2: An example of part of a coadded image from EIS Wide. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/hookr.html -- 11.4 Кб -- 12.06.2006
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220. System Interfaces to the STIS Calibration Pipeline
... The routine processing of STIS data in the calibration ``pipeline" requires an interrelated set of software tasks and databases developed and maintained by many groups at STScI. We present the systems-level design of this calibration pipeline from the perspective of the STIS instrument group at STScI. We describe the multiple interfaces to the pipeline processes that the STIS group works across in an effort to provide for the routine calibration of STIS data. ... For example, the STIS group: . ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/hulberts.html -- 9.4 Кб -- 12.06.2006
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