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1. The Very Large Telescope Project
... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...
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Ссылки http://www.eso.org/projects/vlt/ -- 8.6 Кб -- 03.04.2006
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2. CHIANTI atomic database
... References: %observed energy levels: Johansson L., Magnusson C.E., Joelsson I., Zetterberg P.O., Physica Scripta 46, 221, 1992 %theoretical energy levels: Tayal S.S., Gupta G.P., ApJ 526, 544, 1999 %comment Level ordering is from Tayal Gupta. %comment: Note that Tayal Gupta do not include the 3F and 1F terms from the 3p.4d configuration in their S III model. Produced as part of the Arcetri/Cambridge/NRL 'CHIANTI' atomic data base collaboration % % P.R. Young, Dec-99 . ...
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Ссылки http://www.arcetri.astro.it/science/chianti/chianti_4.01/database/s/s_3.html -- 5.1 Кб -- 02.12.2002
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3. Comments
... Should we allow the reference coordinate and pixel size of output image to be defined by input parameters? Current implementation of the re-projection is a little inefficient. Current implementation loads all image data into memory simultaneously. ... The task currently assumes that exposure images are listed in the same order as their raw photon twin, and the WCS keywords of exposure images are taken from the raw image. ... Limits should be placed on the size of the output image. ...
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Ссылки http://xmm.vilspa.esa.es/sas/8.0.0/doc/emosaic/node9.html -- 3.8 Кб -- 02.07.2008
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4. VLSS radio survey
... VLSS Redux version, 2012 . We present details of improvements to data processing and analysis which were recently used for a re-reduction of the Very Large Array (VLA) Low-frequency Sky Survey (VLSS) data. Algorithms described are implemented in the data-reduction package Obit, and include smart-windowing to reduce clean bias, improved automatic radio frequency interference removal, improved bright-source peeling, and higher-order Zernike fits to model the ionospheric phase contributions. ...
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Ссылки http://www.sao.ru/cats/doc/VLSSr.html -- 4.5 Кб -- 03.12.2012
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5. http://www.stsci.edu/documents/dhb/webvol2/c12_ghrserrors.fm4.html
... Each diode of the linear array (containing 512 diodes, diodes 7-506 are science diodes) was independently monitored via its own electronics chain. ... In practice, the threshold voltage for anomalous diode was set to a high value so that it did not detect electrons from the photocathode. The GHRS calibration software corrects for known anomalous diodes. ... Large background diode (50% peak +3) . ... Bad 4096 bit-in bad diode table (BDT) . ... Flaky: intermittently strong (see GHRS ISR 080). ...
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Ссылки http://www.stsci.edu/documents/dhb/webvol2/c12_ghrserrors.fm4.html -- 16.3 Кб -- 10.02.1998
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6. http://www.adass.org/adass/proceedings/adass03/reprints/P2-4.pdf
... 314, 2004 F. Ochsenbein, M. Al len, and D. Egret, eds. Chandra FITS Dictionary S. Winkelman, A. Rots, K. Michaud, S. Blecksmith Chandra X-Ray Center/Smithsonian Astrophysical Observatory Abstract. ... We have collected the complete body of FITS keywords, as used in Chandra data products, into a dictionary database that provides easy access to their use and meaning. ... A list of filetypes using the keyword is also returned. ... A filetype is composed of one or more Header-Data Units (HDU). ...
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Ссылки http://www.adass.org/adass/proceedings/adass03/reprints/P2-4.pdf -- 151.3 Кб -- 27.08.2004
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7. Be/X-ray binaries and candidates
... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...
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Ссылки http://xray.sai.msu.ru/~raguzova/BeXcat/ -- 5.8 Кб -- 09.01.2015
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8. Handling large spectral bandwidths
... When using a single spectral window, and observing spectral lines, the bandwidth of the ATCA can be problematically narrow, or the channel widths can be too coarse. ... A partial work around for this situation is to use the two ATCA frequency bands to observe in adjacent somewhat overlapping windows, and using the same bandwidths and channel counts for the two windows. ... In so doing, it handles any overlap region between the two windows in a sensible fashion. ...
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Ссылки http://www.atnf.csiro.au/computing/software/miriad/userguide/node217.html -- 8.2 Кб -- 10.04.2016
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9. Exoplanet HAT-P-1b: weird, warm and fuzzy | Astronotes
... Planets . ... Stars . Exoplanets . ... Most exoplanets so far discovered fall into the category of тАШhot JupitersтАЩ, these are giant planets orbiting very close to their parent star. ... Note that we have discovered so many hot Jupiters because they are the easiest type of planet to find, they are not necessarily particularly common in the galaxy. ... Subsequently several similar hot and€а fuzzy worlds have been discovered the same way, proving this that this planet is not a one-off oddball. ...
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Ссылки http://www.armaghplanet.com/blog/exoplanet-hat-p-1b-weird-warm-and-fuzzy.html -- 43.8 Кб -- 09.04.2016
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10. The AstroStat Slog Blog Archive Spurious Sources
... Archives . ... Statistically speaking, ?false sources? are generally in the domain of Type II Type I errors, defined by the probability of detecting a signal where there is none. ... More than 2.3% of the sources are flagged as spurious. ... Type II error is claiming no signal when there is signal (failing to reject the null hypothesis when the alternative is true). Type I error is rejecting the null hypothesis when the null is true, i.e. detecting signal under no signal. ... Chandra Blog . ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2007/spurious-sources/index.html -- 23.5 Кб -- 01.03.2014
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11. NGC 6791: An Old, Large Open Cluster
... NGC 6791: An Old, Large Open Cluster . ... Credit Copyright: Barbara J. Mochejska ( CAMK ) et al., 2.1-m Telescope , KPNO , NOAO , NSF Explanation: NGC 6791 is one of the oldest and largest open clusters of stars known. ... Open star cluster NGC 6791 , however, contains thousands of stars recently measured to be about 8 billion years old. ... This enigma makes NGC 6791, pictured above , one of the most studied open clusters and a possible example of how stars might evolve in the centers of galaxies....
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Ссылки http://www.astronet.ru/db/xware/msg/1162727 -- 15.4 Кб -- 10.11.2006
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12. Обзоры hep-ph: тематический рубрикатор
Обзоры hep-ph: тематический рубрикатор . Методы вычислений . ... Comment: 124 pages; based on a habilitation thesis (2003), University of Dresden . ... Comments: 13 pages . Мини-справочник для тех, кому приходится иметь дело с вычислением диаграмм, расфакторизованных на подпроцессы. ... В последнее время наступило неожиданное оживление в области нестандартных методов вычисления фейнмановских диаграмм (мы следим за прогрессом в этой области на страничке Обзор hep-ph: Методы вычислений ). ...
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Ссылки http://www.scientific.ru/spark/hep-ph-methods.html -- 9.1 Кб -- 22.12.2013
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13. Writing Larger Programs
Next: Header files Up: Programming in C Previous: Exercises . This Chapter deals with theoretical and practical aspects that need to be considered when writing larger programs. When writing large programs we should divide programs up into modules. These would be separate source files. main() would be in one file, main.c say, the others will contain functions. ... UNIX utilities such as make help us maintain large systems (see later). Header files . ... The Make Utility . ...
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Ссылки http://mavr.sao.ru/hq/sts/linux/book/c_marshall/chapter2_17.html -- 3.6 Кб -- 28.12.2007
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/sts/linux/book/c_marshall/chapter2_17.html -- 3.6 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/sts/linux/book/c_marshall/chapter2_17.html -- 3.6 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/sts/linux/book/c_marshall/chapter2_17.html -- 3.6 Кб -- 02.10.2012
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14. Photo album: Japan: Kyoto and Nara, August 1997
... Day-by-day lines contain complete set and intended for those who have been there (I mean, in Kyoto :) . ... Large format is mainly for 1600x1200 screens and fast link (pictures are up to 150K in size). Normal is for typical 1024x768 screen (i.e. 15" monitors). ... Photos look incredible on it. ... Large . ... Normal . ... Thumbnails . ... Contents with thumbnails: Large | ... Nara, one of the historical cities of Japan . ... August 17, Sunday. ... Nara. ... return to photo album contents | ...
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Ссылки http://crydee.sai.msu.ru/photo/japan/ -- 9.3 Кб -- 10.05.1998
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15. APOD: December 27, 1997 - Keck: The Largest Optical Telescopes
... December 27, 1997 . Keck: The Largest Optical Telescopes . ... Explanation: In buildings eight stories tall rest mirrors ten meters across that are slowly allowing humanity to map the universe. Alone, each is the world's largest optical telescope : Keck . Together, the twin Keck telescopes have the resolving power of a single telescope 90-meter in diameter, able to discern sources just milliarcseconds apart. ... About APOD > . ...
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Ссылки http://www.sai.msu.su/apod/ap971227.html -- 4.8 Кб -- 02.10.2012
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16. Creation of Space transportation system on the base of large length rope
... Creation of Space transportation system on the base of large length rope utilization . ... A given address contains the proposal to equip the International Space Station with the long rope and to create on that base a Space transportation system. ... A given system has the multifunctional purpose. ... The rope system could be the base for creating of alternative system of station angular orientation. To utilize the rope system to launch small satellites from the station and to return them back. ...
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Ссылки http://www.iki.rssi.ru/seminar/e_199911_sid.htm -- 4.2 Кб -- 09.03.2000
[ Сохраненная копия ] Ссылки http://www.cosmos.ru/seminar/e_199911_sid.htm -- 4.2 Кб -- 09.03.2000
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17. VISTA - Visible and Infrared Survey Telescope for Astronomy
... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...
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18. The High-Z SN Search Description
So how do we find objects on the other side of the Universe? ... The latest instruments enable us to scan large areas of sky. Using Cerro Tololo's Blanco 4m telescope and the Canada-France-Hawaii 3.5 metre telescope , we are able to scan a piece of sky larger than the size of the moon every 5 minutes to a faintness level which allows us to find Type Ia supernovae halfway across the Universe. Type Ia supernovae are very rare - but each image we take contains 50000 galaxies. ...
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Ссылки http://www.mso.anu.edu.au/~brian/PUBLIC/discover.html -- 5.3 Кб -- 01.10.2012
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19. Large coronal hole near the Sunт??s north pole | Astronomy.com
... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... solar system . ... Large coronal hole near the Sunт??s north pole . ... The European Space Agency (ESA)/NASA Solar and Heliospheric Observatory (SOHO) captured this image of a gigantic coronal hole hovering over the Sunт??s north pole July 18, 2013. ... The European Space Agency (ESA)/NASA Solar and Heliospheric Observatory (SOHO) captured this image of a gigantic coronal hole hovering over the Sun s north pole July 18, 2013, at 9:06 a.m. EDT. ...
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Ссылки http://www.astronomy.com/news/2013/07/large-coronal-hole-near-the-suns-north-pole -- 67.9 Кб -- 10.04.2016
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20. NVSS Image ftp service Documentation Help for NVSS Image ftp service
This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...
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Ссылки http://www.mrao.cam.ac.uk/projects/surveys/nrao/NVSS/findhelp.html -- 6.6 Кб -- 11.02.1999
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