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http://www.naic.edu/~gibson/m42/.
1. M42 Color Images
Click here for the image browser version of this page . ... Each image is a ``true color'' composite of three monochromatic images, in which the red, green, and blue intensities each correspond to the intensity of one of the original images. ... In this case, the three basic colors are assigned as follows: . color filter name wavelength width component revealed RED Hydrogen Alpha 6575 14 ionized gas GREEN Oxygen [III] 5013 14 strongly ionized gas BLUE Broadband Blue 4324 1156 dust and starlight . ...
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Ссылки http://www.naic.edu/~gibson/m42/m42_text.html -- 5.9 Кб -- 06.11.2000
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2. http://lnfm1.sai.msu.ru/grav/english/lecture/filtering/LabN7.pdf
Laboratory work N7 Low-pass filtering. 1) Generate the signal with two periodic components and high-frequency noise. ... 2) Perform it's filtering with Panteleev filter 0 - h(t) = e 22 0 |t| 2 0 t 0 |t| cos + sin 2 2 , where 0 is a parameter. The frequency response of the Panteleev filter is ^ h( ) = 4 0 . 4 0 + 4 Select the cut-off frequency (by varying 0 ) for filtering out high-frequency periodic component and noise. 3) Plot the initial and filtered signal. ...
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Ссылки http://lnfm1.sai.msu.ru/grav/english/lecture/filtering/LabN7.pdf -- 33.1 Кб -- 25.02.2009
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3. Fabry-Perot Interferometer: Data cubes
Fabry-Perot data cubes. Introduction: what is "data cubes"? Observations with the IFP consist of successive acquisition of a few dozen images of interference rings from the object (or from a calibration lamp) when changing the optical path between the flat-parallel plates. The radius of the rings is a function of wavelength and gap between the plates of the interferometer. ... Its interference rings of Ne line which use for phase calibration (convert object data to wavelength-scale). ...
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Ссылки http://mavr.sao.ru/hq/lsfvo/devices/scorpio/ifp/cubes.html -- 7.1 Кб -- 26.05.2008
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lsfvo/devices/scorpio/ifp/cubes.html -- 7.1 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lsfvo/devices/scorpio/ifp/cubes.html -- 7.1 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lsfvo/devices/scorpio/ifp/cubes.html -- 7.1 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lsfvo/devices/scorpio/ifp/cubes.html -- 7.1 Кб -- 02.10.2012
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4. RCJ0311+0507
... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...
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Ссылки http://www.sao.ru/Doc-en/SciNews/RC0311/ -- 7.8 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/RC0311/ -- 7.8 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/SciNews/RC0311/ -- 7.8 Кб -- 02.10.2012
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5. ASP: Making a Rainbow
Classroom Activity: Making a Rainbow . ... When white light from the Sun or a light bulb passes through a prism, the light splits into its component wavelengths. ... Red, blue, green colored filters - if possible, cut 1x4-inch pieces of the filters for each student . ... Many students have the misconception that filters somehow dye the light a certain color. ... Younger students can draw the rainbow and make up a mnemonic for remembering the order of the colors (such as, ROY G. BIV). ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/35/rainbow.html -- 11.3 Кб -- 02.10.2012
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6. A computer controlled low light photometer for nightglow observations
A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...
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Ссылки http://space.univ.kiev.ua/~lapchuk/Photometer.htm -- 15.9 Кб -- 21.02.2000
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7. INVERTOSCOPE
... The versatile and efficient INVERTOSCOPE? combines the highest optical performance with unsurpassed mechanical quality, and is backed by LOMO's unique lifetime warranty, the most comprehensive in the industry. ... A 15X focusing eyepiece with two interchangeable reticles (a 10mm/100div scale and a 10mm x 10mm/400sq grid) for convenient measuring and counting. ... A set of stage inserts and extension plates to accommodate a variety of sample vessels such as Petri dishes, flasks, microtest plates, etc...
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Ссылки http://www.lomoplc.com/invertoscopeDataPage.htm -- 25.3 Кб -- 09.04.2016
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8. GSAOI Component Supplier Links Page
RSAA Home . GSAOI Home . ... Other Links . ... Control Software Links . Optics Links . Micro-Optics Links . ... Optical Materials Databases . ... Rockwell Science Center home page . ... Santa Barbara Research Center home page . ... CCD-World home page . ... SDSU home page . ... EPICS home page . ... Optics Society of America . SPIE - Society for Optical Engineering . ... ZEMAX software (Focus Software page) . OPTICAD software (Focus Software page) . ... RedHat home page . ...
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Ссылки http://www.mso.anu.edu.au/gsaoi/links/suppliers/index.shtml -- 22.7 Кб -- 02.10.2012
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9. Observations with the Faulkes Telescopes
... We had the opportunity to take part in a work experience project in the Armagh Observatory in 2015 from March 30th to April 2nd, during which we used the Las Cumbres Observatory Global Telescope Network to obtain images of various celestial bodies including the Galaxies M83, M88 and M99 which we combined 3 different images created using different filters using the software DS9. ... Images obtained using the Faulkes Telescope North at Haleakala, operated by Las Cumbres Observatory. ...
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Ссылки http://star.arm.ac.uk/~dja/faulkes/M101Nova.html -- 8.2 Кб -- 04.04.2015
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10. Meade Series 4000 Broadband Nebular Filters
... Meade Series 4000 Nebular Filters incorporate the very latest in interference coatings technology. ... Technical Basis of the Meade Broadband Nebular Filter: As shown in the transmission graph below, the Meade Broadband Nebular Filter strongly rejects the light of sodium- and mercury-vapor lights as well as natural airglow and auroral emissions. ... Meade Series 4000 Narrowband Nebular Filters . ... Meade Series 4000 Oxygen-III Nebular Filters . ... Meade Series 4000 Photo-Visual Color Filters . ...
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Ссылки http://www.meade.com/catalog/meade_4000/meade_series_4000_nebular_filters.htm -- 29.2 Кб -- 06.10.2007
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11. Abstract
Proceedings of the Particle Physics and Early Universe Conference (PPEUC). ... M.P. Hobson & A.W. Jones . ... A maximum entropy method (MEM) is presented for separating the emission due to different foreground components from simulated satellite observations of the cosmic microwave background radiation (CMBR). In Jones & Hobson (1998, these proceedings) , the method is applied to simulated observations by the proposed Planck Surveyor satellite. ... 1 Introduction . ... PPEUC Proceedings . ...
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Ссылки http://www.mrao.cam.ac.uk/ppeuc/astronomy/papers/hobson/hobson.html -- 3.6 Кб -- 24.02.1998
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12. The Chandra Automatic Data Processing Infrastructure
... The requirements for processing Chandra telemetry are very involved and complex. ... Standard Data Processing is accomplished by dozens of ``pipelines'' designed to process specific instrument data and/or generate a particular data product. ... The Automatic Processing system (AP) polls its input directories for raw telemetry and ephemeris data, pre-processes the telemetry, kicks off the processing pipelines at the appropriate times, provides the required input, and archives the output data products...
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Ссылки http://www.adass.org/adass/proceedings/adass00/P1-32/ -- 14.0 Кб -- 29.05.2001
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13. Combining Region and Table Filters
This document discusses the conventions for combining region and table filters, especially with regards to the comma operator. Filter specifications consist of a series of boolean expressions, separated by commas. ... Region and table filters can be combined: foo.fits[circle(10,10,3),pi=1:5] or even: foo.fits[pha==1 (10,10,3),pi==2 (20,20,8,5)] In these cases, it is not obvious whether the command should utilize an or or and operator. ...
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Ссылки http://hea-www.harvard.edu/RD/funtools/combo.html -- 4.3 Кб -- 01.10.2012
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14. http://www.atnf.csiro.au/research/WALLABY/Wallaby2010/RJurek-Wallaby2010.pdf
HI source finding: 2 novel approaches ATNF, December 2010 Outline · Background · What is source finding? ... Motivation for developing new HI source finding methods · Novel source finding methods · · · · General idea Iterative 3-D median smoothing Characterised noise method Wavelet method · Summary Background What is source finding? ... 3-D median smoothing: Purpose · Goal: Reduce noise while preserving shape · Particularly edges · Median works because it's non-linear · Consider this, Iter. ...
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Ссылки http://www.atnf.csiro.au/research/WALLABY/Wallaby2010/RJurek-Wallaby2010.pdf -- 1175.1 Кб -- 08.12.2010
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15. Photometry
. Next: The Hierarchical Stellar Systems Up: Data files Previous: Spectroscopy Contents . Photometry data files have the extension .mag . The following gives an example for Algol, where the columns are the component designation, filter name, the Julian date of observation, and value and error of the magnitude measured. The filter names must be one of Hp, U, B, V, R, and I. ABC V 2445249.299 -2.60900 0.001 ABC V 2445249.304 -2.60000 0.001 ABC V 2445249.313 -2.59200 0.001 . Christian Hummel 2015-04-28
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Ссылки http://www.eso.org/~chummel/oyster/manual/node50.html -- 3.3 Кб -- 28.04.2015
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16. Journal "Peremennye Zvezdy"
Peremennye Zvezdy", . ... Star Name: . GSC 3710-00312, USNO-A2.0 1425-04252279 . ... Variability type: . ... USNO-A2.0 1425-04252279 is located at the distance of 15?.7 from the X-ray source 1RXS J031707.9+572942, which is larger than the position error of the source (12?), but its hardness ratio HR1 = 0.03 0.29, typical of chromospherically active stars, and its character of variability allow us to assume that the star is related to the X-ray source. ... Eclipsing variability . Sine wave 1 . ...
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Ссылки http://www.astronet.ru/db/varstars/msg/1250291 -- 11.7 Кб -- 03.02.2013
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17. Fast search through RTT150 data archive
RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...
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Ссылки http://hea.iki.rssi.ru/AZT22/ENG/fsearch.htm -- 9.7 Кб -- 10.07.2008
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18. Filters - Apache HTTP Server
... Apache HTTP Server Version 2.2 . ... This document describes the use of filters in Apache. ... The Filter Chain is available in Apache 2.0 and higher, and enables applications to process incoming and outgoing data in a highly flexible and configurable manner, regardless of where the data comes from. ... A wider range of applications are implemented by third-party filter modules available from modules.apache.org and elsewhere. ... There are two ways to use filtering: Simple and Dynamic. ...
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Ссылки http://www.arcetri.astro.it/manual/de/filter.html -- 13.5 Кб -- 21.01.2013
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19. http://www.apo.nmsu.edu/arc35m/Instruments/ARCTIC/Development/ImagerPDR/Assembly.pdf
The Instrument · · · · · · Baffling Coa3ngs Assembly Moths Lab Tes3ng Commissioning NA2 Baffle · · The NA2 baffle will need to be modified The baffle will need to be opened up to allow the 10.8' diameter field through Instrument Baffles · There are three knife edged surfaces inside the instrument Entrance port Back of shuIer housing Op3cal Tensioner Coa3ngs · Dewar Main components Nickel plated Stainless steel components either ...
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Ссылки http://www.apo.nmsu.edu/arc35m/Instruments/ARCTIC/Development/ImagerPDR/Assembly.pdf -- 2118.2 Кб -- 05.12.2013
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20. http://crydee.sai.msu.ru/ftproot/pub/misc/doc/pm5/pm5a_inf.txt
Here is a description of the Filter/Driver Pack Plus release from Aldus. ... The Macintosh Filter/Driver Pack Plus includes several new and updated filters, including import filters for Microsoft Works 3.0 and MacWrite Pro files, as well as the most recent LaserWriter driver, version 8.1.1. ... The Filter/Driver Pack Plus also includes a patcher utility which will update PageMaker 5.0 to version 5.0a. This patcher corrects a handful of reported customer problems. ...
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Ссылки http://crydee.sai.msu.ru/ftproot/pub/misc/doc/pm5/pm5a_inf.txt -- 7.5 Кб -- 12.05.1995
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