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401. ADASS 2003 Conference Proceedings
... Previous: Model Based Corrections to Data from Radiation Damaged Detectors. ... Pound, M. W., Wolfire, M. G., & Amarnath, N. S. 2003, in ASP Conf. ... A large set of physical parameters and dust types are included in the model database, which contains over 500,000 models. ... The model outputs are averaged over the instrument bands using the same weighting ( constant) as the SIRTF data pipeline which allows the SIRTF data products to be compared directly with the model database. ... 2003). ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-4/ -- 12.0 Кб -- 13.08.2004
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass03/P10-4/P10-4.html -- 12.0 Кб -- 13.08.2004
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402. ADASS 2003 Conference Proceedings
... As part of our effort to enhance the calibration of STIS (a spectrograph on-board the Hubble Space Telescope), we have developed a model of the readout process for CCD detectors suffering from degraded charge transfer efficiency. ... Nevertheless the empirical corrections for STIS provide an ideal means of testing and calibrating the physical model, as the empirical corrections are essentially a distillation of what is to be learnt from the calibration data with respect to CTI. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-3/ -- 12.6 Кб -- 13.08.2004
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403. ADASS 2003 Conference Proceedings
... Low resolution, slitless spectral images were obtained at the Loiano Observatory in the wavelength window 3300-6420 ?, in order to identify in extragalactic objects targets displaying the most prominent features that characterise the spectrum of bright hot stars, WR and Luminous Blue Variables (LBV), and of nebular regions as well. We present the results with the well studied galaxy M 101, where the previously known H II regions with WR star signatures are easily identified. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-2/ -- 13.2 Кб -- 13.08.2004
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404. ADASS 2003 Conference Proceedings
... To meet the requirement of providing flexibility in a laboratory style operations environment, the control system uses a Virtual Instrument Model. ... Scientists can construct instruments specific to their experimental needs from existing components. ... A subtle difference that is implemented in the ATST virtual instrument model is that telescope components can also be associated as part of a virtual instrument. ... Virtual instruments are composable from a set of available components. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-14/ -- 15.3 Кб -- 13.08.2004
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405. ADASS 2003 Conference Proceedings
... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 812 . ... Abstract: The calculation of flux upper limits in the source-free ("background") regions of photon-limited images is complicated by instrumental and statistical modeling and requires non-trivial computational effort. ... The principal component in this is the time taken to pre-process and handle the 30 GB of RASS data rather than the calculation of each upper limit. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-11/ -- 12.9 Кб -- 13.08.2004
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406. ADASS 2003 Conference Proceedings
... This is a report on simulation software for VLBI observations. ... In particular, these are simulations of the interferometer structure, simulations of a radio source structure, and simulations of the noises. ... Investigation of astronomical radio sources with VLBI method often requires to create the simulated VLBI-data. ... Chuprikov, A. A., In: Ros, E. Porcas, R. W., Lobanov, A. P., & Zensus, J. A. (Eds.), Proceedings of the 6th European VLBI Network Symposium, Bonn, Germany, June 25-28, 2002, 27...
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Ссылки http://www.adass.org/adass/proceedings/adass03/P10-1/ -- 12.4 Кб -- 13.08.2004
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407. ADASS 2003 Conference Proceedings
... Constantikes, K. 2003, in ASP Conf. ... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 689 . ... The 100 meter aperture, 60 meter focal length paraboliodal primary mirror has 2209 movable panels used to compensate for structural deformations. ... Finally, these data are stored in a database for further analysis, and could be used to generate real-time control signals for adjust the GBT azimuth, elevation, etc. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O9-1/ -- 21.9 Кб -- 13.08.2004
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408. ADASS 2003 Conference Proceedings
... Early in the mission, the Chandra Data Archive started the development of a bibliography database, tracking publications in refereed journals and on-line conference proceedings that are based on Chandra observations, allowing our users to link directly to articles in the ADS from our archive, and to link to the relevant data in the archive from the ADS entries. ... To this end we have expanded our database to 10 tables: . ... Table 1 provides some statistics on our database as of ADASS XIII. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O7-6/ -- 12.9 Кб -- 13.08.2004
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409. ADASS 2003 Conference Proceedings
... Allan, A., Naylor, T., Steele, I., Carter, D., Jenness, T., Economou, F., & Adamson, A. 2003, in ASP Conf. ... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 597 . ... Joint Astronomy Centre, N. A'oh k Place, Hilo, HI 96720, U.S.A. The eSTAR Project uses intelligent agent technologies to carry out resource discovery, submit observation requests and analyse the reduced data returned from a network of robotic telescopes. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O7-4/ -- 12.9 Кб -- 13.08.2004
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410. ADASS 2003 Conference Proceedings
... The architecture of Montage, which delivers custom science-grade astronomical images, was presented at ADASS XII. ... It exploits to the maximum the parallelization inherent in the Montage architecture, whereby image reprojections are performed in parallel. ... We will present processing metrics and describe how Montage is being used, including its application to science product generation by SIRTF Legacy Program teams and large-scale image processing projects such as Atlasmaker (this conference). ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O7-3/ -- 15.5 Кб -- 13.08.2004
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411. ADASS 2003 Conference Proceedings
... Radio interferometry data should be as accessible as any other part of the electromagnetic spectrum in the form of images, spectra or whatever the astronomer requires, without laborious massive dataset transport or esoteric software at the user end. Many existing facilities are developing on-line access to archive and current data, incorporating VO compatibility. The next generation of interferometers will have data access for non-experts designed into their archives. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O6-4/ -- 16.3 Кб -- 13.08.2004
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412. ADASS 2003 Conference Proceedings
... Data Models exist in people's heads. ... We will also review some of the various modelling languages available. ... It is important to note that the interface language's syntax is not a model. Instead, that syntax should be chosen so as to faithfully reflect the model which the language hopefully shares with user and system. ... So how do we make the model explicit? ... The Unified Modelling Language (UML) is intended for designing object-oriented systems, and modelling their environments. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O6-3/ -- 16.9 Кб -- 13.08.2004
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413. ADASS 2003 Conference Proceedings
... Up: Instrument Modeling . ... The near-infrared multi-object spectrograph NIRSpec is one of the three science instruments onboard the future James Webb Space Telescope. ... In this context and as part of the EADS NIRSpec study funded by ESA, we have developed an end-to-end Fourier-optics model of the instrument, which takes into account both geometrical aberrations and diffraction. ... Using this model we have assessed the effect of diffraction and optical aberrations on NIRSpec's optical...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O5-3/ -- 14.3 Кб -- 13.08.2004
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414. ADASS 2003 Conference Proceedings
... We employ Bayesian inference for the joint estimation of sources and background on ROSAT All-Sky Survey (RASS) data. ... Background maps were estimated in a single step together with the detection of sources without pixel censoring. ... The source probability is evaluated for single pixels as well as for pixel domains to enhance source detection of weak and extended sources. ... The spline fits the background component whereas count enhancements classify pixel (domains) with source contributions. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O3-3/ -- 19.8 Кб -- 13.08.2004
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415. ADASS 2003 Conference Proceedings
... Up: Image Restoration . ... Bhatnagar, S. & Cornwell, T. J. 2003, in ASP Conf. ... In this paper we describe an algorithm which decomposes the sky image into parameterized Adaptive Scale Pixel (Asp) model. ... The image decomposition into Aspen basis then proceeds as follows: . ... The Asp model in the right panel is composed of Asp. ... The algorithm presented here uses scale as one of the parameters and given the PSF, attempts to separate noise and signal using the Adaptive Scale Pixel (Asp) model...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O2-3/ -- 19.5 Кб -- 13.08.2004
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416. ADASS 2003 Conference Proceedings
Next: VLT Instruments Pipeline System Overview . Up: Data Processing Systems . ... XMM-Newton Science Operations Centre, Science Operations and Data Systems Division of ESA, European Space Agency Mike Denby, Duncan Fyfe, Julian Osborne . ... The XMM-Newton Scientific Analysis System (SAS) is the software used for the reduction and calibration of data taken with the XMM-Newton satellite instruments leading to almost 400 refereed scientific papers published in the last 2.5 years. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/O10-2/ -- 20.7 Кб -- 13.08.2004
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417. ADASS 2003 Conference Proceedings
Next: The XMM-Newton SAS - Distributed Development and Maintenance of a Large Science Analysis System: A Critical Analysis . ... Economou, F., Jenness, T., Delorey, K. K., Cavanagh, B., de Witt, S., & Allan, A. 2003, in ASP Conf. ... 314 Astronomical Data Analysis Software and Systems XIII, eds. F. Ochsenbein, M. Allen, & D. Egret (San Francisco: ASP), 755 . ... 295, Astronomical Data Analysis Software and Systems XII , ed. H. E. Payne, R. I. Jedrzejewski, & R. N. Hook (San Francisco: ASP), 237 . ...
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418. ADASS 2003 Conference Proceedings
Next: Large-Scale Data Management . ... The status of the CDS services is described. In particular, new features developed in the context of the Virtual Observatory and using IVOA-discussed standards have been included in the public version of the services, e.g., filter capabilities using Unified Content Descriptors (UCDs) in VizieR and Aladin, customized hierarchical data tree using the IDHA data model, contour plots and colour composition in Aladin, and others. ... 2004). ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/D9/ -- 12.8 Кб -- 13.08.2004
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419. ADASS 2003 Conference Proceedings
... The ALMA Common Software (ACS) is a CORBA-based framework that provides a common and homogeneous infrastructure for the whole ALMA software, from high-level data flow applications down to instrument control (Schwarz et al., ... In this domain, ACS provides a generic abstraction of hardware control and monitor points that is independent of the software underneath. This abstraction layer is coupled to the hardware using the DevIO (Device Input/Output) interface, based on the Bridge design pattern. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/D8/ -- 13.5 Кб -- 13.08.2004
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420. ADASS 2003 Conference Proceedings
... PyFITS is a Python module developed for FITS file I/O. We demonstrated its use for FITS images and tables, illustrating the PyFITS classes and methods, as well as the array manipulation capabilities of numarray. ... PyFITS can also make use of memory mapping, which significantly enhances its performance on large FITS files, both images and tables. ... If the native byte order differs from that of a FITS file (big-endian), byte swapping is done on-the-fly within numarray when accessing data. ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/D4/ -- 12.4 Кб -- 13.08.2004
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