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http://www.stsci.edu/~levay/color/handbook.pdf.
http://www.stsci.edu/~levay/color/handbook.pdf.
1. Interpreting the results
... Meta Index / Home Page / Description / How to use Slew data is particularly susceptible to problems caused by background flares, low-energy noise and halos around bright sources. For a practical guide of the issues to be aware of when interpreting slew data please see Saxton et al. ... In this image, problems due to low-energy noise and optical loading can readily be seen. It is worth checking this image for problems before interpreting interesting features in the scientific images. ...
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Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/eslewchain/node8.html -- 3.7 Кб -- 22.10.2008
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2. http://www.stsci.edu/~levay/color/illustrations.pdf
Image scaling renders maximum visible detail Full data range Black: -207 White: 16143 Automatically setting the smallest image value to be black and the highest value to white can force important areas of the image to be rendered invisible. ... Resulting combined image Combining separate exposures to produce a color image Separate filter images Grayscale [HeII] F469N [OIII] F502N H F656N [NII] F658N Colorized Resulting color composite Separate images are exposed through different color filters. ...
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Ссылки http://www.stsci.edu/~levay/color/illustrations.pdf -- 986.1 Кб -- 27.10.2004
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3. Author Query Results
... Date . ... Authors . ... 1.000 . ... Kniazev, Alexei Y.; Grebel, Eva K.; Pustilnik, Simon A.; Pramskij, Alexander G.; Kniazeva, Tamara F.; Prada, Francisco; Harbeck, Daniel . Low Surface Brightness Galaxies in the Sloan Digital Sky Survey. ... 08/2001 . ... V. The fifth list of 161 galaxies . ... IV (Kniazev+, 2001) . ... Email results to: . ... Return: Results Form for manual query . ... Databases queried: Astronomy/Planetary Authors: KNIAZEVA, T Start date: 00/1990 End date: 03/2004 . ...
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Ссылки http://www.sao.ru/precise/Laboratory/Publications/tkn_list.html -- 23.7 Кб -- 18.03.2004
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4. HISA Poster for the 195th Meeting of the AAS, January, 2000
A press release on the Canadian Galactic Plane Survey was associated with this poster. ... Below are maps of HI emission, HISA, and 12 CO emission in the eastern 25% of the survey, given as projections along the velocity ( Figure 1 ) and latitude ( Figure 2 ) axes. ... 2000, A. J. , submitted . ... GIF | ... We are developing automated methods of locating HISA in velocity cubes by removing large-scale emission in space and velocity and flagging small-scale dark residuals. ...
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Ссылки http://www.naic.edu/~gibson/hisa/poster/2000/ -- 11.2 Кб -- 20.11.2005
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5. Recreating Einstein Level One Processing Exposure Masks and Background Maps in
... This paper describes the main algorithms used by the Einstein Level One processing to create the exposure masks and the background maps for Einstein IPC images, and how these algorithms were recreated in the IRAF environment. Our goal was to recreate the algorithms used by the Level One Processing to create exposure masks and background maps for Einstein Image Proportional Counter (IPC) data (cf. sections 2.5 and 2.7 of Harnden et al. ...
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Ссылки http://www.adass.org/adass/proceedings/adass94/vanstoned.html -- 11.6 Кб -- 03.11.2000
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6. XWare > APOD
... About 5,000 light-years away, toward the constellation Sagittarius and the center of our galaxy, lies the bright star forming region cataloged as M17. ... But what has sculpted this glowing gas cloud? ... Mars Through a Small Telescope . ... Bright Lights, Dark City . ... Rich star fields and glowing hydrogen gas silhouette dense, opaque clouds of interstellar gas and dust in this Hubble Space Telescope close-up of IC 2944, a bright star forming region in Centaurus, 5,900 light-years away. ...
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Ссылки http://www.astronet.ru/db/xware/apod.html?page=99&d=2006-04 -- 15.0 Кб -- 12.04.2016
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7. Using Channel Ops with GIMP
Channel ops are one of the most powerful and simple tools available to you with the GIMP. ... Channel ops are operations that typically involve two images. Each channel operation compares and does some sort of manipulation based on the pixels in two images. ... Add takes two images, and adds the RGB or greyscale values of the pixels. ... If you have a completely black canvas, all the values are zero. ... This channel operation compares two images and results in the darkest values from each image. ...
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Ссылки http://www.sai.msu.su/~megera/gimp/xach/tutorials/chops/chops.html -- 10.1 Кб -- 22.12.2007
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8. Solar system scientific results 2003
... Archive 2003: . From RATAN-600 observations with a matrix radiometer at a wavelength of 1 cm indications have been found of existence of relativistic electrons in the magnetosphere of Jupiter with energy of about 100 MeV, which demands revision of mechanisms of acceleration of cosmic rays of the solar wind with energy of a few MeV. ... Archive . ...
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Ссылки http://www.sao.ru/Doc-en/Science/results/ar_solar/res2003.html -- 5.3 Кб -- 10.04.2016
[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/Science/results/ar_solar/res2003.html -- 5.3 Кб -- 10.04.2016
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[ Сохраненная копия ] Ссылки http://mavr.sao.ru/Doc-en/Science/results/ar_solar/res2003.html -- 5.3 Кб -- 10.04.2016
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9. http://hea-www.harvard.edu/AstroStat/Stat310_0708/ta_20080422.pdf
... Individual SEDs upper limits constrain physical models Survival analysis for a sample Stacking mean properties of sample Chandra X-ray data (faint point sources ) are photon-limited with low background = stacking in X-rays is very effective X-ray Stacking 2008-Apr-22 Astrostats Stacking basics: Make an image Define ... X-ray Stacking 2008-Apr-22 Astrostats Discussion! ... X-ray Stacking 2008-Apr-22 Astrostats ...
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Ссылки http://hea-www.harvard.edu/AstroStat/Stat310_0708/ta_20080422.pdf -- 369.7 Кб -- 21.04.2008
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10. RAS ISR' Conclusion on the scientific results received in the orbital complex
... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...
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Ссылки http://www.cosmoworld.ru/mirstation/english/documents/iki_ran_280998.shtml -- 11.0 Кб -- 09.04.2016
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11. Results
Next: References Up: On the problem of Previous: The spectrograph design and . Figure: Fragment of the echelle spectrum of protoplanetary nebula RAFGL 618 in H . In Fig. 3 are shown fragments of the echelle spectra of the quasar S5 0014+81 ( ) obtained with the PF echelle spectrograph within the frames of the programme of study of absorption spectra of bright quasars (authors of the programme are D.A.Varshalovich and A.V.Ivanchik). ...
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Ссылки http://mavr.sao.ru/hq/ssl/PFES/node5.html -- 5.5 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/ssl/PFES/node5.html -- 5.5 Кб -- 01.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/PFES/node5.html -- 5.5 Кб -- 01.10.2012
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[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/ssl/PFES/node5.html -- 5.5 Кб -- 01.10.2012
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12. http://star.arm.ac.uk/~csj/nuffield/posters/2008_stephen_maxwell_poster.pdf
... They worked out that first magnitude was on average 100 times brighter than the 6th magnitude star. ... This formed an equation of apparent magnitude Mv which is: Mv = -2.5 log f + constant were f is the flux of that star f = ( counts/ exposure) The images that we worked on were taken by the Polar Bear Telescope. ... One of these being that it will be combined with standard stars, which will be used to identify the area of stars and to also help identify other stars within the image. ...
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Ссылки http://star.arm.ac.uk/~csj/nuffield/posters/2008_stephen_maxwell_poster.pdf -- 1761.2 Кб -- 21.01.2009
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13. Siding Spring Survey
T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...
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Ссылки http://www.mso.anu.edu.au/~rmn/ -- 11.4 Кб -- 23.12.2011
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14. Results
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... ATCA . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...
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Ссылки http://www.atnf.csiro.au/pasa/15_1/sabalisck/paper/node2.html -- 51.2 Кб -- 08.04.2016
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15. ADS Abstract Service Results
Find Similar Abstracts . ... Interaction between free electrons and electromagnetic radiation . ... ELECTROMAGNETIC SCATTERING, ELECTRON PLASMA, FREE ELECTRONS, PARTICLE INTERACTIONS, PLASMA-ELECTROMAGNETIC INTERACTION, ANISOTROPIC MEDIA, BRIGHTNESS TEMPERATURE, CIRCULAR POLARIZATION, DIFFERENTIAL EQUATIONS, ELECTRON DISTRIBUTION, INTEGRAL EQUATIONS, KINETIC EQUATIONS, PHOTONS, SOLITARY WAVES, THERMODYNAMIC EQUILIBRIUM, THOMSON SCATTERING . ...
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Ссылки http://xray.sai.msu.ru/~mystery/html/Z/biblio/75.2.html -- 6.8 Кб -- 29.05.1996
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16. http://site2010.sai.msu.ru/static/doc/DAfshari.pdf
Measurement of Sky Brightness at the Iranian National Observatory Davoud Afshari1 and Sadollah Nasiri1,2 1Physics Department, Zanjan University, Zanjan 45195-313, Iran; Institute for Advanced studies in Basic Science (IASBS), Zanjan 45195-1159, Iran; Measurement of light pollution 2 Introduction Among 34 candidate sites at the central part of the country, 5 sites namely Garkesh (in Kashan ), Kolahbarfi(in Kashan ), Deynava (in ... One of these is light pollution. ...
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Ссылки http://site2010.sai.msu.ru/static/doc/DAfshari.pdf -- 472.0 Кб -- 27.10.2010
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17. Low Surface Brightness Galaxy Gallery
In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...
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Ссылки http://zebu.uoregon.edu/sb2.html -- 4.8 Кб -- 26.05.2000
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18. Multiwavelength Study of Mira Ceti-Type Variable Stars
... There are preliminary series of photometric and radio spectral observations of the above-mentioned stars, archival data on the light curves of the stars, results of the search for OH and H 2 O maser emission in IRAS point sources that possess the IR parameters similar to Miras. ... The aim is a detailed study of the maser emission variability. ... In 1996-1997, astronomical observations of Mira Ceti-type stars (miras) were carried out in three spectral ranges: optical, infrared, and radio. ...
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Ссылки http://comet.sai.msu.ru/~gmr/miras.html -- 13.9 Кб -- 25.11.2015
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19. IDL programs
... This program was created for correlating chosen regions in the series of fts images. ... Chosen regions' . ... In this section the program counts the integral for each region of the grid for each image. ... As a matter of fact, the integral is total brightness of the region and it is counted by 'int_tabulated' IDL function. ... In addition, the program will show the count of the regions which correlate with the corresponding region (the brighter region means the bigger count) and its contour. ...
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Ссылки http://lnfm1.sai.msu.ru/~kupry/SOFTWARE/korel_en.html -- 9.9 Кб -- 15.08.2003
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20. Rapid Changes in the Inner Coma of Comet Hyakutake
This is a copy of a Press Release from E.S.O. The most recent ESO observations of bright Comet Hyakutake have shown rapid changes in the innermost coma, within a few hundred kilometres from the cometary nucleus. This result has only become possible because of the unusual combination of a bright comet being near the Earth, together with the excellent imaging quality of the ESO 3.5-metre New Technology Telescope (NTT). ... Go to the ESO Homepage for Comet Hyakutake . ESO/La Silla | ...
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Ссылки http://www.eso.org/~ohainaut/nice/hyak_mar96.html -- 6.7 Кб -- 18.08.2004
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