True Color Image Gallery: Galactic SNR | Magellanic Cloud SNR . ... Description: large, diffuse, X-ray and radio brighter in northern half . Radio . ... Radio Images Page . ... Exposure uf . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . ... Event 2 FITS File . ... AUX file . ... 0.3 - 10.0 . ... see fit detail page for more about the fit. see chandra spectrum page for region used. ... True Color Image . ... Radio Images . ...

Еще в разделе: (Показать все результаты (>5066) - hea-www.harvard.edu/ )

• Chandra Images for G012.8-00.0
• Chandra Images for G010.0-00.3
• Chandra Images for G011.2-00.3

Next: Catalog Construction Up: Observations and Analysis Previous: Source Detections . ... It was assumed that the highest signal gives the most likely position of the source. ... Comparing the summed map with the maps from the individual energy ranges, the one which produced the smallest error box was chosen to represent the source position, as long as was greater than 4, a level chosen to reflect a reasonable degree of confidence in the detection. ...

Еще в разделе: (Показать все результаты (>3513) - www.sao.ru/ )

• Primary Catalog
• VLBI SOURCE POSITION CATALOG
• A VLA Survey of the First Quadrant of the Galactic Plane at 1.5

... This is followed by astrometric columns - ie columns for the Right Ascension, declination, position error, galactic longitude and galactic latitude. There then follows columns for the computed significance (signal-to-noise) of each source for each of the filters present. Columns for the instrumental magnitudes and colours for each filter, follow. ... Columns for the standard magnitudes and errors, for each filter, follow. ... Standard colours and errors then follow. ...

Еще в разделе: (Показать все результаты (>12880) - xmm.vilspa.esa.es/ )

• SourceListFile
• Source selection

... We now consider estimation of count rates for objects with stellar, power law, and emission line spectra. To estimate the number of electrons collected from a point source of apparent visual magnitude V, one can use the equation: . ... If one knows the spectral index a (which is zero for a source with a flat continuum), V + AB_nu can also be calculated as the monochromatic Oke system magnitude at the corrected mean wavelength of the filter: . ... 6.3.3 - Count Rates for Emission Line Sources . ...

Еще в разделе: (Показать все результаты (>17750) - www.stsci.edu/ )

• Appendix B: Point Source SNR Plots
• Plots for Estimating Point Source SNR

... Up: Science Data Pipelines . ... We designed and developed a package which simulates extragalactic point source data within a given field of view and SIRTF band. ... The simulator is modular and extensible to enable multi-wavelength simulations, has been optimized by utilizing parallel processing capabilities, and will be used to test pipeline software. ... The extragalactic simulator is capable of generating large numbers of galaxies within a given patch of sky for SIRTF pipeline testing. ...

Еще в разделе: (Показать все результаты (>1688) - www.adass.org/ )

• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
• QPSIM: An IRAF/PROS Tool for Source Simulation
• ADASS 2002 Conference Proceedings

... comparison of the system performance for alfa and lbw at OH (.ps) ( .pdf ) (no amps in) . comparison of the system performance for alfa and lbw at OH (.ps) ( .pdf ) (with amps in) . ... On 01apr05 the system performance was measured using the continuum source CTA21 (B0316+162. ... The plots show the comparison of the system performance for alfa and lbw at OH (.ps) ( .pdf ) (no amps installed). ... Black is polA, red is polB. ... G/T alfa)/(G/T lbw) . ... The polB/polA performance ratios are: . ...

Еще в разделе: (Показать все результаты (>4920) - www.naic.edu/ )

• http://www.naic.edu/~phil/mbeam/calibration/01apr05_oh_performance.html
• a2584
• Calibration Scans on Continuum Sources

On 1 February 2002 this Mirror was upgraded from NVSSlist v2.10 to NVSSlist v2.17 . ... This form searches the source catalog produced by the NRAO/VLA Sky Survey (NVSS). ... Object name [optional] : . ... Search radius and verification halfwidth in arcseconds [Optional] : . ... Enter a list of positions to search: . ... The contents of the NVSS source catalog and the techniques used by NVSSlist to derive error estimates and other parameters are described here. ...

Еще в разделе: (Показать все результаты (>4283) - www.mrao.cam.ac.uk/ )

• G332.4-0.4
• NVSS Source Search (10-July-1998) Help for NVSS Source Catalog Search
• G266.2-1.2

... Miriad has a couple of tasks available for finding positions of sources (see also cgcurs in Chapter 17 ). ... It fits a 2-D parabola to the image intensities in a 3 by 3 pixel box centred on the brightest pixel in a specified region and reports the fitted location and intensity. ... Input image . ... The quality of your fit can improve significantly by selecting a snug region, and/or using the clip keyword to keep pixel values with little signal (e.g. sidelobes and noise) out of the fitting process....

Еще в разделе: (Показать все результаты (>28180) - www.atnf.csiro.au/ )

• News Results
• casacore: casa/Logging/LogSinkInterface.h Source File
• A Post-Correlation equivalent to an Adaptive Filter

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Greening the Earth Using Space Resources? by Greg Matloff . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Еще в разделе: (Показать все результаты (>618) - www.aaa.org/ )

• Central Park ? Solar Observing ? Amateur Astronomers Association of New York
• Julian Parks Gallery ? Amateur Astronomers Association of New York
• Poe Park, The Bronx ? Solar Observing ? Amateur Astronomers Association of New

The Astronomy Net . Articles | AstroGuide | ... Forums . ... H ere you can find resouces to help understand perhaps the grandest of all sciences. ... Upcoming Sky Events . ... This site includes lists of manufacturers, vendors, software, etc. organized in the AstroGuide to help when you are looking to purchase your tools. ... Astronomy Articles . ... Are you interested in writing an article for the Astronomy Net? ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Еще в разделе: (Показать все результаты (>523) - www.astronomy.net/ )

• The Sun Energy Source Is Not Nuclear Fusion But Magnetic Fields. - an Astronomy
• Black Holes As A Source Of Dark Matter/energy? - an Astronomy Net Blackholes2

... General information . ... Staff . Research staff . Technical, administrative & librarian staff . ... Staff in alphabetic order . Research . ... Technical reports . Projects . ... General interest seminars . ... IT Services . ... Information . ... Historical highlights . Historical research . Historical archive . ... Projects and events . Online resources . ... Information Services . Catalog and Resources: . ...

Еще в разделе: (Показать все результаты (>10756) - www.arcetri.astro.it/ )

• On line Resources
• Online resources
• Arcetri designs innovative superconductor microwave filters for the Sardinia

Links and Resources for Energy and the Environment . The world is finally becoming globally aware that exponential resource usage in combination with finite reserves is a recipe that ensures our great grandchildren won't be born. ... National Environmental Information Service . ... Electronic Energy Journal . ... Sustainable Development Dimensions , including sections on Environmental information , Environmental policy, planning and management and Energy for development . ... Acid Rain Resource . ...

Еще в разделе: (Показать все результаты (>602) - zebu.uoregon.edu/ )

• Geology Materials
• Physics 162 Winter 1996
• Physics 161: Winter 1999 Physics 161: Energy and The Environment Fall 1999

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... python . ... parse . getPVTPxPMRadVel.py . ... 15 љ and the following qualifiers: /Distance /Px /PM /RV. 16 љ . ... 19 љ @param[in] defTAI TAI date to use if time not specified (MJD, seconds) . ... 25 љ - /Distance and /Px are both specified . ... 31 љ if not parsedCmd.qualDict[ "distance" ].boolValueDefaulted: . 32 љ raise CommandError( "Must specify new position to specify /Distance" ) . ... tcc.parse.getPVTPxPMRadVel.getPVTPairPxPMRadVel . ...

Еще в разделе: (Показать все результаты (>1116) - www.apo.nmsu.edu/ )

• lsst.tcc: python/tcc/mov/checkSegment.py Source File
• lsst.tcc: python/tcc/cmd/showInstrument.py Source File
• lsst.tcc: python/tcc/axis/coordConvWithFP.py Source File

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... Astronomy Education Bibliography . ... Astronomical Pseudo-Science . Moon Resource Guide . ... Astronomy of Many Cultures Resource Guide . ... Activity from NOVA to figure out your birthday in the Maya calendar (if you were born 1980 or after): http://www.pbs.org/wgbh/nova/teachers/activities/pdf/2804_maya.pdf . ... The Maya Astronomy Page (Dawn Jenkins): http://www.michielb.nl/maya/astronom.html . ...

Еще в разделе: (Показать все результаты (>1454) - www.astrosociety.org/ )

• ASP: Black Holes: An Introductory Resource List
• ASP: Astronomical Pseudo-science: A Skeptic's Resource List
• ASP: Multicultural Astronomy: The Astronomy of Non-western Cultures: A Resource

... 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 . ...

Еще в разделе: (Показать все результаты (>28) - www.vista.ac.uk/ )

• VISTA ETC - Exposure Time Calculator

Next: The Model Up: No Title Previous: Radiopulsars as Sources of . In this section, we study the evolution of stellar populations on a time-scale of 10 Myr for a starburst љ occurring under conditions similar to those in the Galactic Center (see Lipunov et al. (1995d)[ 126 ]). We estimate the expected number of X-ray transient љ sources (NS + MS star), super accreting BH, and BH + supergiant binaries, all as functions of time elapsed after the burst. ...

Еще в разделе: (Показать все результаты (>672) - xray.sai.msu.ru/ )

• Radiopulsars as Sources of Cosmic Rays
• Population synthesis of X-ray sources at the Galactic center
• Effect of sources evolution on

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... 29 љ Vec2f position; . ... 32 љ VertexP2 ( const Vec2f position) : position(position) {} . ... 43 љ Vec2f texCoord; . ... 46 љ VertexP3T2 ( const Vec3f & position, const Vec2f texCoord) . ... 50 љ VertexP3T2 ( const Vec2f pos, const Vec2f texCoord) . ... 64 љ VertexP3T2C4 ( const Vec3f & position, const Vec2f texCoord, const Vec4f & color) . ... 68 љ VertexP3T2C4 ( const Vec2f pos, const Vec2f texCoord, const Vec4f & color) . ...

Еще в разделе: (Показать все результаты (>2574) - astro.uni-altai.ru/ )

• Stellarium: core/modules/Meteor.hpp Source File
• Stellarium: core/renderer/StelTextureParams.hpp Source File
• Stellarium: core/modules/Atmosphere.hpp Source File

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

Еще в разделе: (Показать все результаты (>1170) - jet.sao.ru/ )

• di_eks
• SCORPIO: IFP Gallery
• More IPC Resources

... Energy . ... Solar Wind . ... Field . ... The Sun is our nearest star and the source of energy for life on Earth. ... For centuries astronomers wondered whether they were clouds floating in the Sun's atmosphere, but we now know that they really are huge regions of magnetic field, about as intense as the field at the poles of an iron magnet. For some reason the field slows down the flow of heat from the Sun's interior and keeps sunspots slightly cooler than their surroundings. ... Solar Eclipses . ...

Еще в разделе: (Показать все результаты (>6433) - www.cosmos.ru/ )

• "Exploration" as a Classroom Resource
• Data sources
• Nonequilibrium distributions

These pages collect together references to many pictures of the solar system that can be found on the Net. ... Since I originally compiled this list the number of relevant images has grown tremendously. ... http://www.jpl.nasa.gov/pictures/ . ... ftp://dftnic.gsfc.nasa.gov/images/gifs/ . ... http://www.jpl.nasa.gov/galileo/images.html . http://www.jpl.nasa.gov/magellan/images.html . ... http://nssdc.gsfc.nasa.gov/image/planetary/ . ... NASA Image Access Homepage (Planetary Photojournal) . ...

Еще в разделе: (Показать все результаты (>825) - www.iki.rssi.ru/ )

• The Sun
• "Exploration" as a Classroom Resource
• Plasma source [Oulu]