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1. Image and Spectrum Recovery
... Determine the net instrument response desired. ... Use a numerical algorithm, the convolution network (discussed in detail below), to search for the solution that provides the desired mapping of the observed data to the desired form. ... We first made preliminary studies investigating recovery of images that have been broadened by the HST's mirror by modeling its PSF as shown in Fig. ... Our recovery procedure was applied also to spectral data, in this case to a tunable diode laser (TDL) spectrum. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/stsci/meetings/irw/proceedings/ching.dir/section3_2.html -- 12.8 Кб -- 18.04.1994
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2. Spectrum Extraction
... Meta Index / Home Page / Description / Extraction Stage (extractor) . Spectrum extraction is turned on by setting the parameter spectrumset , which specifies the name of the output spectrum file. ... The energy column must be integer-valued, and any specified binning factor or energy ranges must be integer-valued as well. ... If these values are not set, then the input data set is queried for the TLMIN and TLMAX attributes of the energy column, and if available these are used for the energy range. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/evselect/node9.html -- 7.8 Кб -- 08.07.2007
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3. Spectrum
... spectrum . ... SPECTRUM will compute synthetic spectra, line profiles equivalent widths, specific intensities, assuming LTE, from model atmospheres of early-type stars. ... sterne models . file containing model atmosphere in 2006 Sterne format . ... T=25000, log g=4.0, vt=0, 1400-1415A. a) NLTE model atmosphere, spectrum computed with SYNSPECv25 (black). b) LTE model atmosphere, same linelist in converted format, spectrum computed with SPECTRUM (red) using this input file and this linelist . ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/software_store/guide/spectrum.html -- 9.0 Кб -- 30.08.2007
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4. Mean power spectrum
... Figure 10: Mean power spectrum obtained by time-averagi ng the energy map at each duration. For non-periodic signals, the mean wavelet spectrum is similar to the Fourier spectrum. ... The compromise we reached in allowing for single bump localization (something Fourier cannot do) reduces the spectral accuracy. ... Denote by the Fourier transform of the signal, the Fourier transform of the Mexican hat wavelet. ... by which the wavelet transform is a band-pass filtered Fourier Transform. ...
[ Сохраненная копия ]  Ссылки http://crydee.sai.msu.ru/~vab/Wavelet.rsc/Tutor.dir/node8.html -- 4.3 Кб -- 12.04.1998
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5. Using the Spectrum Analyzer
Next: OLD Basic Analyz Routines - documentation Up: Spectral Line Appendices Previous: Correlator Configurations . To use the spectrum analyzer to check that your data looks ok, do the following: . Plug the spectrum analyzer into cable rach 4 IF output (3rd chassis from te top). On the spectrum analyzer, 1st, hit: . MHz . ... You will see a flipped spectrum. You can now move the cable to rack 6 IF output (pola B) and check that it looks the same. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~astro/spectral_line/handbook_old/app/spec_anal.html -- 2.1 Кб -- 19.09.2000
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6. Computation of the Output Absorption Spectrum
Next: Auxiliary Data Up: Typical Run Previous: Edition of the . This is the main step achieved by the command: . SYNEMI : input emission spectrum . SYNABS : output spectrum with synthetic absorption lines . ABSC : table containing the cloud model . ABSP : table containing the atomic data . NAMEP : image containing the instrumental response . Warning : this image must have the same step size as SYNEMI . ... The synthetic spectra according to the parameters of table ABSC. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node203.html -- 3.3 Кб -- 23.02.1996
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7. New spectrum of FG Sge
.
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/ssl/FGSge.html -- 1.9 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/ssl/FGSge.html -- 1.9 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/ssl/FGSge.html -- 1.9 Кб -- 01.10.2012
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8. Spectrum Management at ATNF
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Management | ... Parkes radio telescope . Australia Telescope Compact Array . ... Spectrum management . ... The Australia Telescope National Facility (ATNF) considers that radio spectrum protection is critical to its operations. Historically, the ATNF and its predecessors in CSIRO have been strongly involved in both national and international radio spectrum management activities such as the ITU and the ACA. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/people/Tasso.Tzioumis/spectrum/index.html -- 49.3 Кб -- 09.04.2016
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9. The Flash Spectrum of the Sun
... The Flash Spectrum of the Sun . ... Credit Copyright: Constantine Emmanouilidi Explanation: In a flash, the visible spectrum of the Sun changed from absorption to emission on November 3rd, during the brief total phase of a solar eclipse. ... What remains, spread by the diffraction grating into the spectrum of colors to the right of the eclipsed Sun, are individual eclipse images at each wavelength of light emitted by atoms along the thin arc of the solar chromosphere . ... Solar Eclipse from Uganda ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1295814 -- 15.1 Кб -- 15.11.2013
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10. Spectrum plotter
. Next: Startable editor Up: Widget procedures Previous: Widget procedures Contents . This widget allows to plot spectra read from a Library of Stellar Spectra, by Jacoby, Hunter, and Christian (1984), and to identify lines of various elements and molecules. plotspectrum Invoke spectrum plotter widget. Christian Hummel 2015-04-28
[ Сохраненная копия ]  Ссылки http://www.eso.org/~chummel/oyster/manual/node126.html -- 3.1 Кб -- 28.04.2015
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11. Quick-look Applet Spectrum 2
... Spectrum 2 is a new quick-look applet for spectra. ... Prior to display the ESO Fits Translation Utility (FTU) is used to homogenize plots of data from HST instruments STIS, FOS and GHRS. ... Figure 1 shows Spectrum 2 in context of the ST-ECF HST archive web interface ( http://archive.eso.org ). ... The applet reads the data stream using a FITS I/O package developed by McGlynn/USRA and then parses certain keywords in order to define a plot (Figure 3 ). ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass00/P1-52/ -- 10.1 Кб -- 29.05.2001
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12. The AstroStat Slog power spectrum
... Posts tagged ?power spectrum? Jun 16th, 2008| 10:47 am | Posted by hlee . ... ArXiv] 2nd week, June 2008? ... Category: arXiv , MCMC | ... Cosmic Microwave Background Statistics for a Direction-Dependent Primordial Power Spectrum by A. R. Pullen and M. Kamionkowski . The authors developed cosmic microwave background statistics for a primordial power spectrum, motivated from the needs of testing the cosmological common assumption, i.e. the statistical isotropy of primordial perturbations. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/power-spectrum/index.html -- 26.8 Кб -- 01.03.2014
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13. Images of the total spectrum
The figures display the total emissivity from the Arcetri Spectral Code calculated at Log T = 5.0 (K) . Total spectrum - The emissivity is binned with wavelength steps of 0.5 Choose the electron density: Ne = 10^2 Ne = 10^3 Ne = 10^4 Ne = 10^5 Ne = 10^6 Ne = 10^7 Ne = 10^8 Ne = 10^9 Ne = 10^10 Ne = 10^11 Ne = 10^12 Ne = 10^13 Ne = 10^14 . ... Mail comments regarding interface to landi@poppeo.nrl.navy.mil Mail comments regarding spectrum data to mlandini@arcetri.astro.it, landi@poppeo.nrl.navy.mil ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/science/spettro/plots_5.0_phot.html -- 4.3 Кб -- 05.07.2001
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14. Data from the Parkes Half Jansky Flat Spectrum Sample (PHFS)
. 1st column is the rest wavelength in Angstroms, 2nd column is the flux, 3rd is the error estimate, 4th the number of spectra contributing at that wavelength, 5th-7th the mean, minimum and maximum redshifts of the contributing spectra. Composite Spectrum of the Blue PHFS sub-sample. Composite Spectrum of the Blue PHFS sub-sample. Composite Spectrum of the LBQS sub-sample. Equivalent widths of the Parkes Quasars. Equivalent widths of the LBQS QSOs. Last updated 13th July 2001. Maintainer: Paul Francis , .
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/pfrancis/pksdata/ -- 2.4 Кб -- 01.10.2012
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15. APOD: 2016 March 12 - The Flash Spectrum of the Sun
... 2016 March 12 . The Flash Spectrum of the Sun . ... Explanation: In a flash, the visible spectrum of the Sun changed from absorption to emission on March 9 during the total solar eclipse. ... What remains, spread by the diffraction grating into the spectrum of colors to the right of the eclipsed Sun, are individual eclipse images. ... In between, the bright yellow emission image is caused by atoms of Helium, an element only first discovered in the flash spectrum of the Sun . ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap160312.html -- 5.5 Кб -- 10.04.2016
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16. Second Spectrum-RG/eROSITA Conference
... Over the first 4 years, its X-ray telescopes eROSITA and ART-XC will survey the whole sky with a record sensitivity in the 0.5-10 keV energy band. ... The goal of the second international Spectrum-RG conference is to discuss the different scientific topics addressed by the mission, synergies with surveys at other wavelengths, and requirements to follow-up observations.Contributed talks and poster presentations are invited on the topics related to the SRG science goals. ... Active galactic nuclei . ...
[ Сохраненная копия ]  Ссылки http://hea.iki.rssi.ru/kazan2012/ -- 16.7 Кб -- 27.02.2014
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17. Operators with discrete spectrum (Fall 2004)
... Лекция 1 (33K) | Лекция 2 (25K) | Лекция 3 (23K) | Лекция 4 (30K) . Лекция 5 (26K) | ... Лекция 7 (24K) | Лекция 8 (32K) . ... Лекция 10 (22K) | ... Лекция 12 (20K) ] . ... Это спецкурс по теории линейных операторов в гильбертовом пространстве H (и шкалах гильбертовых пространств). ... это неограниченный оператор, имеющий непустое резольвентное множество \rho(A) на комплексной плоскости и компактную резольвенту R_A(\lambda)=(A-\lambda I)^{-1} при \lambda\in\rho(A). ...
[ Сохраненная копия ]  Ссылки http://www.mccme.ru/ium/f04/spectrum.html -- 5.7 Кб -- 09.12.2005
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18. The 14 July 2000 meter-wavelength dynamic radio spectrum
To a special Solar Physics issue on the Bastille Day Event: . ... Multi-scale temporal features of the 14 July 2000 meter-wavelength dynamic radio spectrum compared with TRACE data . ... Figure 1 (100 KB). SOHO/EIT (a) and LASCO/C2 (b) images show the region of the eruptive flare event of 14 July 2000 and related halo CME. ... Figure 2 (47 KB). ... Figure 3 (115 KB). Medium-scale dynamic spectrum (a), 204 MHz metric (b) and 3000 MHz microwave (c) profiles of the "Bastille Day" event. ...
[ Сохраненная копия ]  Ссылки http://www.izmiran.rssi.ru/~ichertok/000714/index.html -- 5.4 Кб -- 13.06.2012
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19. SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW
SPECTRUM ANALYZER OF MAGNETIC PHENOMENA SAMW . Spectrum analyzer allows onboard computation of electromagnetic waves spectra registered (observed) in the ionosphere and magnetosphere in the ELF/VLF frequency band. ... It consists of magnetic antenna, preamplifier, 16 bit sigma delta AD converter, DSP processor and telemetry interface. ... The channels of lower frequencies are averaged and transmitted with lower repetition rate so the telemetry volume is reduced. ... Dynamic range: 90 dB . ...
[ Сохраненная копия ]  Ссылки http://space.univ.kiev.ua/projects/warning/samw.html -- 5.6 Кб -- 15.02.2000
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20. HEND Dictionary Spectrum
Спектр (от лат. spectrum - представление, образ, видение) . ... Спектром электромагнитного излучения называется совокупность всех значений его интенсивностей для любых длин волн, частот или энергий его квантов . ... Непрерывный спектр электромагнитного излучения в оптическом диапазоне представляет собой сплошную непрерывную цветную полоску с изменением цветов от красного до фиолетового. ... Другими слова ми, если в потоке излучения присутствуют волны любой длины, оно имеет непрерывный спектр. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/hend/Dictionary/Spectrum.htm -- 8.2 Кб -- 04.11.2002
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