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1. Last Look at Plutos Charon Side
... Last Look at Plutos Charon Side . ... Credit Copyright: NASA , Johns Hopkins Univ./ ... As the robotic New Horizons barrels toward its closest approach to Pluto and its moons tomorrow, images already coming back show Pluto's surface to be curiouser and curiouser. The featured image , taken two days ago, shows the side of Pluto that always faces Pluto's largest moon Charon. ... Publications with keywords: Pluto . Publications with words: Pluto . ... Charon and the Small Moons of Pluto . ...
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Ссылки http://www.astronet.ru/db/xware/msg/1338632 -- 14.7 Кб -- 14.07.2015
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2. APOD: April 16, 1998 - Mars: Cydonia Close Up
... April 16, 1998 . Mars: Cydonia Close-Up . Credit: Mars Global Surveyor Project , NASA . Explanation: The Mars Global Surveyor spacecraft has returned another close-up of the Cydonia region on Mars. Orbiting over clear Martian skies at a range of about 200 miles, the Mars Orbiter Camera looked down on features known as the "City" on Mars and produced a high resolution image covering a swath around 1.5 by 15 miles at a pixel size of about 8.2 feet. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap980416.html -- 4.1 Кб -- 02.10.2012
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3. http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sistemasolare/Marte/prc9927.txt
... STScI-PRC99-27 A CLOSER ENCOUNTER WITH MARS Taking advantage of Mars's closest approach to Earth in eight years, astronomers using NASA's Hubble Space Telescope have taken the space-based observatory's sharpest views yet of the Red Planet. ... In these views the north polar cap is tilted toward the Earth and is visible prominently at the top of each picture. ... Dark sand dunes that surround the polar cap merge into a large, dark region called Acidalia. ...
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Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/sistemasolare/Marte/prc9927.txt -- 7.2 Кб -- 30.06.1999
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4. The Behavior of the Aromatic Features in M101 H II Regions: Evidence for Dust
The aromatic features in M101 were studied spectroscopically and photometrically using observations from all three instruments on the Spitzer Space Telescope. The global SED of M101 shows strong aromatic feature (commonly called PAH feature) emission. ... This implies that the weakening of the aromatic emission in massive star-forming regions is due primarily to processing of the dust grains in these environments, not to differences in how they form. ...
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Ссылки http://www.stsci.edu/~kgordon/papers/2008ApJ...682..336G.html -- 5.1 Кб -- 21.01.2016
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5. Description
... rgsregions defines and constructs the various RGS event-selection regions, and adds them to the source list (see rgssources ). ... Image regions and the background region refer to the plane of dispersion versus cross-dispersion ( image plane ) and select events based on their spatial coordinates. ... The order regions refer to the plane of dispersion versus calibrated pulse-height ( energy plane ) and select events from a specific astrophysical source within a particular reflection order. ...
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Ссылки http://xmm.vilspa.esa.es/sas/5.4.1/doc/rgsregions/node3.html -- 11.1 Кб -- 10.01.2003
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6. I-GALFA View of a Galactic Tangent Region
I-GALFA View of a Galactic Tangent Region . ... Image featured in NAIC Newsletter #46 . I-GALFA image of hydrogen gas in a tangent region outside the Sagittarius arm. ... Because we are viewing this gas in a direction closely aligned with (tangent to) its orbital motion, it appears to be moving away from us (we are orbiting the Galactic center with a similar speed, but our own motion in a different direction). ... The gas near 60 degrees longitude is being viewed tangent to its orbital motion. ...
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Ссылки http://www.naic.edu/~gibson/galfa/igalfa/gallery/tan/ -- 4.6 Кб -- 25.01.2010
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7. http://www.mrao.cam.ac.uk/~cjld1/pages/geometryandcosmology2.pdf
... ratios Evolution Equations with · Now write · Evolution equations now · Define trajectories via Cosmic Trajectories Dust =0 de Sitter phase Radiation =1/3 Initial singularity Cosmic Trajectories · For a range of initial conditions, models re-focus around the flat ... case · For decoupled matter and radiation can solve the equations exactly · Solutions governed by two constants: Non-Euclidean Geometry · Axioms of ...
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Ссылки http://www.mrao.cam.ac.uk/~cjld1/pages/geometryandcosmology2.pdf -- 625.8 Кб -- 14.04.2004
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8. http://star.arm.ac.uk/~ambn/abstract280.html
The power specta for line intensities of several lines formed in the upper transition region around 100,000 to 250,000K are presented. A period of ~5 min. is clearly present in lines due to O III, O IV and O V. In one dataset a period approaching 10 min. is present for ~10 min. ... In all datasets examined, there is excess power below 1mHz everywhere along the slit, although the observed periods do not always come from the most intense regions. ... In all regions, the 5.0mHz power peak is smaller. ...
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Ссылки http://star.arm.ac.uk/~ambn/abstract280.html -- 2.5 Кб -- 02.02.1998
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9. Chandra Images for J0051.1-7321
. True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . Images show regions used to extract spectra . Regions with red strikes are excluded . Background was subtracted from a region around or close to the SNR. Back to J0051.1-7321 Index . Chandra Supernova Remnant Catalog . Main Page | Galactic SNR | Magellanic Cloud SNR . True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR .
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Ссылки http://hea-www.harvard.edu/ChandraSNR/SNRJ0051.1-7321/chandra_spectra.cgi -- 4.6 Кб -- 02.10.2012
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10. ESO - A number of OmegaCAM filters show vignetting in their central regions.
... Data Reduction FAQ > A number of OmegaCAM filters show vignetting in their central regions. What are the causes for this and what are the dimensions of these features? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... ESO Science Newsletter . ... A number of OmegaCAM filters are not monolithic, but consist of four segments (each covering 8 detectors) that have a central cross-shaped support structure. ... Filter . ...
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Ссылки http://www.eso.org/sci/data-processing/faq/a-number-of-omegacam-filters-show-vignetting-in-their-central-regions-what-are-the-causes.html -- 23.4 Кб -- 10.04.2016
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11. Titan Press Release
... UA SCIENTIST & TEAM DISCOVER SURFACE FEATURES COVER TITAN (Science contacts: Peter H. Smith, (602) 621-2725; Mark Lemmon, (602) 621-1485; UA Lunar and Planetary Laboratory) . Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ... Upper left: hemisphere facing Saturn. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/titanpr.htm -- 8.3 Кб -- 15.10.1997
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12. A 10-GHz Radio Continuum Survey
... OCR by H.Andernach 1/96, to be proof-read) This is the first of a series of papers presenting results of a 10-GHz radio continuum survey of the galactic plane region using the 45-m telescope at Nobeyama. ... Weak Nonthermal Sources: A comparison with the Bonn S-GHz survey reveals a number of weak nonthermal sources near the galactic plane. ... For this reason we conducted a survey of the galactic plane region at 10 GHz using the 45-m radio telescope at the Nobeyama Radio Observatory (NRO). ...
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Ссылки http://www.sao.ru/cats/doc/NRO_Sof.html -- 7.2 Кб -- 18.03.2015
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13. http://xray.sai.msu.ru/~polar/xmgr/regions.html
Define region . ... Area/perimeter . Define a region of interest on a graph or graphs. Select the region, there are 5. ... Inside polygon . Points inside a closed, non-intersecting polygon are considered inside the region. ... In the polygonal region type, define the region by successive clicks with the left mouse button, use the right mouse button to register the polygon. ... Select the region to use. ... Click on Area or Perimeter and use the mouse to define the region. ...
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Ссылки http://xray.sai.msu.ru/~polar/xmgr/regions.html -- 4.0 Кб -- 25.08.1997
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14. http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf
FEATURES OF THE HYDROGEN DISTRIBUTION AROUND LUNAR CRATERS PROCLUS AND KEPLER. ... In result of analysis of the data Lawrence and Feldman constructed the hydrogen distribution on the lunar surface [1]. ... However, the authors shown, that EN flux data features may be explained by other element abundance in the lunar soils, namely: Si, Ca, Gadolinium (Gd), Samarium (Sm) and Fe. ... Using of the Feldman's interpretation of the Lunar Prospector data [8], we constructed hydrogen distribution map (Fig.1). ...
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Ссылки http://selena.sai.msu.ru/Shev/Publications/m44_76_sinitsin_shevchenko.pdf -- 164.0 Кб -- 16.03.2011
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15. Astronomers recently discovered that Scholz's star passed close to the Sun
... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...
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Ссылки http://www.astronomy.com/magazine/ask-astro/2015/06/rogue-star -- 63.7 Кб -- 10.04.2016
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16. Circinus_galaxy
... A typical spectrum (such as Figure 1) shows the classic triple-peaked spectrum, which is associated with masers located in a circumnuclear disk (e.g. NGC 4258, Nakai et al., ... The Circinus galaxy megamasers are known to be variable on timescales of weeks and months with individual maser features having a lifetime of around one year. ... Most of the masers observed showed some degree of variability over an hour while one feature displayed a doubling of its flux density over about 10 minutes. ...
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Ссылки http://www.atnf.csiro.au/news/newsletter/jun03/Circinus_galaxy.htm -- 8.9 Кб -- 23.01.2013
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17. ASP: Miranda: A Jigsaw Puzzle World
... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/07/07.html -- 12.0 Кб -- 02.10.2012
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18. Modelling Spectro-photometric Characteristics of Eclipsing Binaries
... We present a computer program for modelling energy flux distribution and light curves of eclipsing binaries from far ultraviolet to infrared regions. The Roche model is assumed. Proximity effects of components (reflection of radiation and surface gravity darkening) are taken into account. ... Figure 1: The surface temperature distribution for Algol A-B system before (upper plot) and after (lower plot) correction for temperature due to the irradiation effect. ...
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Ссылки http://www.stecf.org/conferences/adass/adassVII/polubekg.html -- 15.8 Кб -- 12.06.2006
[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass97/polubekg.html -- 15.8 Кб -- 15.05.1998
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[ Сохраненная копия ] Ссылки http://www.adass.org/adass/proceedings/adass97/polubekg.html -- 15.8 Кб -- 15.05.1998
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19. Wavelength dependence
... The first task assumes the searching for chemical composition and sizes of particles which give the wavelength dependence of the extinction efficiencies close to the observed dependence of . Figure 7: Wavelength dependence of the extinction efficiency factors for homogeneous spherical particles of different sizes consisting of astronomical silicate and amorphous carbon. The dashed segment shows the approximate wavelength dependence of the mean galactic extinction curve at optical wavelengths. ...
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Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node3.html -- 15.8 Кб -- 19.11.2010
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20. Meade Series 4000 Photo-Visual Color Filters
... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...
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Ссылки http://www.meade.com/catalog/meade_4000/meade_series_4000_filters_02.htm -- 21.5 Кб -- 06.10.2007
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