True Color Image Gallery: Galactic SNR | ... Common Name: SGR 1900+14 . ... Description: bright SGR located well outside shell of remnant . ... Exposure uf . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . not clear if SGR and remnant are associated . ... Event 2 FITS File . ... Pileup model used to correct spectrum but index probably uncertain. see fit detail page for more about the fit. see chandra spectrum page for region used. ...

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• Chandra Images for G326.3-01.8
• Chandra Images for G000.1-00.1
• Chandra Images for G023.2-00.2

... 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 . ...

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

... When the source-detection algorithms has run omdetect will compute raw count-rates for each detected source. For point-sources (ie those sources having widths consistent with those of the point-spread function) the count-rates are obtained by aperture photometry. For binned and unbinned images the aperture is 6 and 12 pixels, respectively. ... Extrapolate (if necessary) the source count-rate to the 12 unbinned pixel aperture, using the point-spread function for the filter. ...

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• General source table layout
• Parameters
• Example 1: Point source

... 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. ...

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• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
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• AstroWeb -- Internet Resources for Astronomers

... 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. ...

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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" . ...

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• 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

... 88, Jan. 1983, p. 1-15. l. A survey of extragalactic radio sources made using driven declination scans is reported covering an area of about 0.07 sr to a limiting flux density of 35 mJy. The fast-scan survey was carried out at a galactic latitude greater than 17 deg with the NRAO 91-m telescope operating at 4.755 GHz, and the 480 sources detected were reobserved at 1.4 GHz with the National Astronomy and Ionosphere Center 305-m telescope at Arecibo. ...

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• Source Positions
• The ROSAT All-Sky Survey Faint Source Catalogue
• The Parkes 6 cm Galactic Survey

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) . ...

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

... Files . ... File List . ... casa . Logging . ... Sink from its common usage ("source/sink") as a thing 00055 // which can accept some substance or energy. ... 00105 LogSinkInterface ( const LogFilterInterface filter ); 00106 00107 // Copy semantics - copy the filter from src other / src to src this / src 00108 // group 00109 LogSinkInterface ( const LogSinkInterface other); 00110 LogSinkInterface operator= ( const LogSinkInterface ); 00111 // /group 00112 00113 ...

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• casacore: casa/Logging/LogFilter.h Source File
• casacore: tables/LogTables/LogFilterTaql.h Source File
• casacore: casa/Logging/LogFilterInterface.h Source File

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 . ...

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

... a) As source material for the high-school or college curriculum, especially in physics. astronomy and their history. (b) As a source of supplemental projects by high school students or by undergraduates. (c) As material for independent studies, In particular by motivated students who seek to know more about space . ... Those wishing to look up specific topics are advised to use the index file, accessible from the end of any "Exploration" file. ... files not listed and at other resource material. ...

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• The Sun
• Data sources
• Nonequilibrium distributions

... noise (a/d rms=43 counts) , and noise (43 counts) + sine waves (31 + 35MHz) with a/d rms=150 counts. ... Dana's noise source with a -4db sine wave at 31MHz and 35 MHz. ... Page 1: dana's noise source with A/D rms of 43 noise counts + sine waves of 31 and 35 MHz (which are digitally mixed to 1,5 MHz). ... The rms of the output data was 1274 counts (with an output shift enable of 7). the top plot is linear while the bottom plot has a db scale. ... Page 4: danas noise source with A/D rms of 43 counts. ...

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• Technical Data for the Arecibo Airglow and Optical Instrumentation
• Index of /~phil/hardware/vertex/sharemegsvertex/lcu/pcr/c600/source/PWB
• ALFA Performance at 1665 MHz

... The results of long-term monitoring of Gigahertz-Peaked Spectrum sources were found the statistically significant differences (0.05 significance level) in the high-frequency spectral index distribution between subgroups of galaxies and quasars. ... This can mean that the electron energy distribution for GPS galaxies is steeper than for GPS quasars. ... The first area corresponds to GPS-quasars that have statistically larger value of redfhift, second area corresponds to GPS-galaxies. ...

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• Detection of unique bright radio flare of X-ray binary
• Detection of polarized radiation sources with unusual spectral characteristics
• Detection of Radio Transients and Variable Radio Sources Using the Archive Data

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 . ...

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• Physics 410/510 Observational Cosmology
• Physics 162 Winter 1996
• Physics 161: Winter 1999 Physics 161: Energy and The Environment Fall 1999

... 172 ] Briefly, the count rate at the detector from a source at a redshift z is . ... Figure 55 shows the ``Green functions'' for the double compact binary merging rate   evolution assuming no collapse anisotropy. ... Another way that diverse peculiarities in the - distribution induced by the sources evolution could arise is connected with a possible non-monotonic character of the star formation rate in galaxies. ... 22 ] Figure  56 shows two-dimensional cuts through the parameter space. ...

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• Radiopulsars as Sources of Cosmic Rays
• Population Synthesis of X-ray Sources at the Galactic Center
• X-ray Galactic Sources and Binary Radiopulsars as Probes of the Initial Mass

RTT150 . ... This search system is designed for generating the necessary information on series of pointings (observations of each source consist of sets of exposures with different filters and sometimes with different exposure times) for observed sources. Search results appear at the separate page as a table with the following data: . DATE - real (not evening!) observations date (in YYYY-MM-DD format); . ... Bin - minimal CCD binning mode (may vary during the observations); . ...

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• INTEGRAL 9-year Galactic Survey
• High Energy Astrophysics Department at IKI RAN

home education > resources . SEARCH ASP SITE: Match ALL words Match ANY word . ... Astronomy Education Bibliography . ... Black Holes: An Introductory Resource List . ... On how our time differs from the early universe in terms of what galaxies are doing, and what role supermassive black holes play. ... Discusses how supermassive black holes powering the centers of galaxies may be more common than thought. ... On Hubble observations showing how common supermassive black holes are in galaxies. ...

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• ASP: Beacons in the Gloom
• ASP: Multicultural Astronomy: The Astronomy of Non-western Cultures: A Resource
• ASP: The Astronomy of Many Cultures: A Resource Guide

... Staff . ... Friends of Arcetri . ... Arcetri designs innovative superconductor microwave filters for the Sardinia Ratio Telescope . ... A new microwave component based on HTS technology has been presented in a recent issue of the Journal of Astronomical Instrumentation, produced by World Scientific Publishing Company, in the article тАЬ A high temperature superconductor microwave filter working in C-band for the Sardinia Radio Telescope тАЭ by Pietro Bolli and collaborators (Fig.1). ...

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• Other WWW Astronomy Resources
• On line Resources
• mod_ext_filter - Apache HTTP Server

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... python . ... cmd . showInstrument.py . ... 35 љ kwStrs.append( "Inst=%s; InstPos=%s; GCView=%s" % ( . ... 48 љ kwStrs.append( "IImScale=%0.4f, %0.4f; IImCtr=%0.2f, %0.2f; IImLim=%0.2f, %0.2f, %0.2f, %0.2f" % ( . ... 61 љ kwStrs.append( "GImScale=%0.4f, %0.4f; GImCtr=%0.2f, %0.2f; GImLim=%0.2f, %0.2f, %0.2f, %0.2f" % ( . ... 69 љ kwStrs.append( "GImScale=NaN, NaN; GImCtr=NaN, NaN; GImLim=NaN, NaN, NaN, NaN" ) . ... tcc.cmd.showFocus.showFocus . ...

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• TUI:Scripts:Built In Scripts:NICFPS:Dither:Point Source
• lsst.tcc: python/tcc/cmd/showTime.py Source File
• lsst.tcc: python/tcc/util/runningStats.py Source File

... Luminosity (L) · · · · A source's luminosity is the power that it emits in radiation. ... NB Astronomers often say `flux' when they mean `flux density' · SI units are Wm-2Hz -1 -26 filter · Also used are Jy 10 Wm-2Hz -1 E= РРРF d dA dt Specific Intensity, Surface Brightness (I) · Specific intensity (or surface brightness) is the power received (or emitted) per unit area per unit frequency per unit solid angle. ч F at surface of a spherical source = I · · Specific intensity is independent of distance...

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• G315.4-2.3
• G332.4-0.4
• G6.4-0.1