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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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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 pr