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1. At the Limit of Diffraction
... At the Limit of Diffraction . ... Credit Copyright: Yuri Beletsky ( Las Campanas Observatory , Carnegie Institution ) Explanation: Did you ever want to just look through the eyepiece of a large telescope in space ? If you could, you would see a sharp view that was diffraction limited . ... Still, in this working earth-based snapshot a new active adaptive optics system (MagAO) is being used to cancel out the atmospheric blurring in a visual observation of famous double star system Alpha Centauri . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1336731 -- 14.7 Кб -- 07.05.2015
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2. FUV-MAMA Repeller Off as an Available Mode for High Resolution Spectroscopy
... HST . FUV-MAMA Repeller Off as an Available Mode for High Resolution Spectroscopy . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... We find that the FUV-MAMA has improved resolving power (at the cost of sensitivity) when the repeller-wire high-voltage is turned off. ... To fully realize the increase in resolution provided by this mode, users will have to reprocess the data on their own using the CALSTIS package in STSDAS with parameters set for HiRes pixels. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/stis/documents/newsletters/proposing/expired_items/repeller -- 22.9 Кб -- 12.04.2016
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3. Кроссовки Botticelli Limited - Botticelli Limited - Botticelli Limited
... Цвет: синий . ... Материал верха: натуральная кожа . ... Материал подошвы: резина . ... Пол: Мужской . Кроссовки Botticelli Limited. ... Материал: натуральная кожа. ... Пол: Унисекс . ... Игрушки максимально точно копируют оригинал и могут быть выполнены в натуральную величину. ... Материал верха: Натуральная кожа . Материал подкладки: Натуральная кожа . Материал стельки: Натуральная кожа . ... Маленькой ножке будет комфортно благодаря натуральным материалам и отверстиям для воздуха. ...
[ Сохраненная копия ]  Ссылки http://astrokuban.info/astroku7752.html -- 20.3 Кб -- 14.02.2016
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4. Energy resolution
Next: Detection Efficiency Up: CCD Scientific Performance Previous: CCD Scientific Performance . The X-ray energy required to liberate a charge pair in a semiconductor is approximately an order of magnitude lower than in gas detectors, hence the potential spectroscopic advantage of CCD detectors. ... For a number of years, good scientific CCDs attained noise performance of electrons rms, but this limited the energy resolution for X-ray energies 3keV. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/user/socpub/ccd_review/node5.html -- 12.5 Кб -- 30.08.1996
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5. Image quality-resolution
Limiting Resolution . The terms MTF cutoff frequency, limiting resolution, and resolving power have all been used interchangeably to define the smallest target that can be resolved with an imaging system. Although the term 'limiting resolution' is often used to describe the smallest target length that can be imaged. ... For example, high frequency targets can be reproduced from their low frequency fundamentals and phase errors can produce 'phantom' images that resemble high frequencies. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/drabek/CCDP/TUTORIAL/Imqualiti/tutorial-quality-resolution.htm -- 3.7 Кб -- 11.11.1998
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6. A New PROS Task for Calculating HRI Source Intensities or Upper Limits
... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/chenj.html -- 11.4 Кб -- 03.11.2000
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7. http://observ.pereplet.ru/images/GRB081102/grb_film.html
... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...
[ Сохраненная копия ]  Ссылки http://observ.pereplet.ru/images/GRB081102/grb_film.html -- 8.2 Кб -- 01.10.2012
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8. Limits on Phase Correction Performance Due to Differences Between Astronomical
... Bojan Nikolic web pages (r. 329) . ... Using high-resolution three-dimensional realisations of turbulent fields, we investigate the limits on achievable performance of atmospheric phase correction using water-vapour radiometers arising from following effects: the incoherent measurement of power from water by the radiometers (in contrast to coherent detection of the astronomical signal); the different tapers of the response patterns of the astronomical and radiometer receivers; and, the ...
[ Сохраненная копия ]  Ссылки http://www.mrao.cam.ac.uk/~bn204/alma/memo573.html -- 11.0 Кб -- 04.04.2016
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9. CONICA: The high resolution near-infrared camera for the ESO VLT
... Design of Imaging Optics . Analyzing Optics . ... The high resolution near infrared camera (CONICA) for the first VLT unit telescope is under development. It serves as a multi-mode instrument for the wavelength region between 1.0 and 5.0 microns, providing diffraction-limited spatial resolution when combined with the adaptive optic system NAOS of the VLT (Rosset et al. ... VLT instrumentation, ALADDIN InSb detector, NIR imaging, NIR spectroscopy, re-imaging optics, IR optics . ...
[ Сохраненная копия ]  Ссылки http://www.stecf.org/conferences/sardinia/node7.html -- 16.6 Кб -- 12.06.2006
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10. PENTAR: Объективы PENTAX K / Объективы серии Limited
... Объективы PENTAX K . ... Объективы серии Limited . ... добавить в окно сравнения . ... Объектив SMC Pentax FA 31мм f/1.8 AL Limited Black . Широкоугольный объектив высшего класса эксклюзивной серии Limited . ... Объектив SMC Pentax FA 31мм f/1.8 AL Limited Silver . Высококлассный широкоугольный объектив эксклюзивной серии Limited . ... Объектив SMC Pentax FA 43мм f/1.9 Limited . ... Объектив SMC Pentax FA 43мм f/1.9 Limited Black . ... Объектив SMC Pentax FA 77 f/1.8 Limited Black . ...
[ Сохраненная копия ]  Ссылки http://www.pentar.ru/catalog/qm-folderId-eq-1255058163372280.htm -- 57.0 Кб -- 09.04.2016
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11. http://www.atnf.csiro.au/research/workshops/2012/ALMA/Testi_ALMAWorkshop2012.pdf
The ALMA Development Plan Leonardo Testi ESO ALMA Programme Scientist The ALMA Development Plan, Sydney, 6 Feb 2012 1 ALMA beyond ALMA ALMA will allow transformational science thanks to the sensitivity, angular resolution, spectral coverage and image fidelity, but.. ... The ALMA Development Plan, Sydney, 6 Feb 2012 Leonardo Testi: ALMA, Firenze 24 Gennaio 2012! ...
[ Текст ]  Ссылки http://www.atnf.csiro.au/research/workshops/2012/ALMA/Testi_ALMAWorkshop2012.pdf -- 2099.7 Кб -- 20.03.2012
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12. Diffraction-limited Bispectrum Speckle Interferometry and Speckle Polarimetry
... Diffraction-limited Bispectrum Speckle Interferometry and Speckle Polarimetry of the Young Bipolar Outflow Source S140 IRS1 . ... P06P We present bispectrum speckle interferometry and speckle polarimetry of the deeply embedded infrared bipolar outflow source S140 IRS1, a massive protostellar object in the L1204 molecular cloud. ... Our data suggest that the central source is marginally resolved with a FWHM diameter of approximately 20 mas (~ 20 AU). ...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/balega/PUBL_BAL/PUB_2000/2000AGM_17_P06P.html -- 11.6 Кб -- 28.12.2007
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/balega/PUBL_BAL/PUB_2000/2000AGM_17_P06P.html -- 11.6 Кб -- 02.10.2012
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/balega/PUBL_BAL/PUB_2000/2000AGM_17_P06P.html -- 11.6 Кб -- 02.10.2012
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13. APOD: 2015 May 7 - At the Limit of Diffraction
... 2015 May 7 . At the Limit of Diffraction . ... If you could, you would see a sharp view that was diffraction limited . Unaffected by atmospheric blurring that ultimately plagues earthbound observers, the angular resolution of your diffraction limited view would be determined only by the wavelength of light and diameter of the telescope lens or mirror; the larger the diameter, the sharper the image. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap150507.html -- 5.2 Кб -- 10.04.2016
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14. Wispi Design Notes
... 400mm f/2.8 Nikor lens: images the sky on the entrance slit. ... The optical system maintains image quality along the slit length so that each row of the image is a spectrum of that spatially selected region of the sky. 180mm f/2.8 Nikor lens: collimates the light from the slit. ... The auxiliary optical platform on WISPI now accomodates a short focal lens and a guiding/imaging video system that may use sub-pixel corrections to provide feedback to the tracking drive motors. ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/moore/wispi/wisp_const.html -- 8.6 Кб -- 10.05.2010
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15. Extraction of limited time intervals
. Next: *timfilter* - List start Up: *timsort* Previous: Extraction of time-sorted events . xt> timsort Input QPOE file name: xdata$rp110590n00.qp[time=(1611613:1612817)] Output time-ordered file name: rp90_sect2 . An alternate approach which saves the typing of long numbers is to choose the appropriate interval by editing the file rp90_tim.lis output with timfilter and specifying the input file as . xdata$rp110590n00.qp[@rp90_tim.lis] . rsdc@cfa.harvard.edu . 1998-06-10
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/PROS/PUG/node168.html -- 3.5 Кб -- 01.10.2012
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17. Appendix
... Incremental cost is therefore limited to a simple 16-bit up down hardware counter interface buffer for the interpolator and 9 bits of a 16 bit port for the absolute encoder. Teledyne-Gurley Model 8626, 2 required @ $1400 $2800 Complete Duplicate Spares $2800 . BEI Model M25, 2 required @ $1000 $2000 Complete Duplicate Spares $2000 . ... Datacube VG-120 Multibus video interface $3000 Spare $3000 Panasonic B/W CCD camera, 2 req'd @ $1000 $2000 One spare camera $1000 . ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Telescopes/eng.papers/milt/appendix.html -- 2.4 Кб -- 13.12.1993
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18. CRIRES - VLT High-Resolution IR Echelle Spectrometer
... Instrument Status . Science Verification . ... CRIRES . ... SV observer shall submit their proposals using the Science Verification proposal template Proposers are asked to provide at least a short summary of the science goal, coordinates and magnitudes of GS and science target, a finding chart , the observing wavelength ID, as specified in appendix A of the UM and DIT, NDIT settings of science detectors as computed with the exposure time calculator (see below). ... with a 0.2 arcsec slit. ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/~rsiebenm/crires/ -- 20.5 Кб -- 10.07.2006
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19. Diffraction Limited, AstroGuide Listing
The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Software authors of "Quick Fringe" and "MaxImDL." Quick Fringe is an optical interferogram fringe analysis program. ... 613) 225-2732 . ... 613) 225-9688 . Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/astroguide/ag154.html -- 12.7 Кб -- 09.04.2016
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20. Meade Instruments Corporation - Meade Binocular Limited Warranty
Home About Meade Product Information Dealer Locator Customer Support Investor Relations Dealer Support Employment Opportunities Site Map . Meade Instruments Corporation . ... Meade Binocular Limited Warranty . ... Meade will repair or replace the product, or part thereof, found upon inspection by Meade to be defective, provided the defective part or product is returned to Meade, freight prepaid, with proof of purchase. ... This warranty supersedes all previous Meade binocular warranties. ...
[ Сохраненная копия ]  Ссылки http://www.meade.com/support/bncwrt.html -- 10.0 Кб -- 17.02.2009
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