True Color Image Gallery: Galactic SNR | ... Distance: 60kpc(distance to SMC, Westerlund(1990) ) . ... Exposure uf . ... Exposure uf Exposure time of unfiltered event file . Exposure f Exposure time of filtered event file . ... J0047.2-7308 superimposed on larger remnant, J0047.5-7308 . ... AUX file . ... 0.3 - 10.0 . ... N H = 0.3(10 22 cm -2 ) Assumed distance: 60kpc (distance to SMC, Westerlund(1990) ) . 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
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• 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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• Appendix B: Point Source SNR Plots
• Plots for Estimating Point Source SNR

... 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
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... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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• An Extragalactic Point Source Simulator for SIRTF Pipeline Testing
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in
• AstroWeb -- Internet Resources for Astronomers

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. ...

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• The Parkes 6 cm Galactic Survey
• A fast-scan extragalactic source survey at 4.755 GHz
• The ROSAT All-Sky Survey Faint Source Catalogue

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

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 162 Winter 1996
• Physics 161: Winter 1999 Physics 161: Energy and The Environment Fall 1999
• Physics 162: Alternative Energy; Spring 1998

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 . ...

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• ASP: Cosmology: The Origin, Evolution & Ultimate Fate of the Universe

... list of all files with drifts 15apr03 to 27may03 baseband mixer chassis was tested on the bench and the tubular lowpass filters (k&E) (100 mhz) after the mixer were causing the problem. ... 10apr03 shows drift of sbc1B with the outputs of the IF2 switched sbc1B, sbc2b. The drift remains in sbc1B so the problem is after this switch (in the correlator). 14apr03 The cables leaving the attenuator box in the correlator were switched (sbc1b and sbc2b). ... At sample 4600 i retightened the switched cables....

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• pdev_birdies_25jun07
• Index of /~phil/hardware/vertex/sharemegsvertex/lcu/pcr/c600/source/PWB
• Technical Data for the Arecibo Airglow and Optical Instrumentation

... 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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• More IPC Resources
• RPM Sources of Current
• di_eks

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. ...

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

... Flux density at 1 GHz (/Jy): 28 . ... Radio: Shell, brightest to the S. Optical: Filaments correspond well to the radio shell, brightest in SE. X-ray: Brightest to NW, with point source near centre. Point sources: Central, variable X-ray source, and nearby pulsar. ... Molonglo at 408 MHz (3') and Parkes 64-m at 5 GHz (4'). ADS . ... ASCA observations of compact X-ray source. ... X-ray variability of central source. ... ATCA at 1.4 GHz (50''), including H I absorption to central source. ...

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• G266.2-1.2
• G260.4-3.4
• G127.1+0.5

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

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Study of radio spectra and variability of GPS sources
• Detection of polarized radiation sources with unusual spectral characteristics
• Detection of unique bright radio flare of X-ray binary

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/util/runningStats.py Source File
• TUI:Scripts:Built In Scripts:NICFPS:Dither:Extended Source

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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• Central Park ? Solar Observing ? 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

. Previous . Next . Create a gist index for the tsvector data type column, ts_vec. Index Scan using ts_readme_ts_vec_in on ts_readme (cost=0.00..2.38 rows=1 width=89) (actual time=0.079..0.247 rows=11 loops=1) Index Cond: (ts_vec @@ '\'databas\' | \'queri\''::tsquery) Filter: (ts_vec @@ '\'databas\' | \'queri\''::tsquery) Total runtime: 0.412 ms (7 rows)

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• ntptrace - trace a chain of NTP servers back to the primary source
• Sternberg Astronomical Institute
• APOD: December 31, 1995 - The X-ray Sources of M31

Gamma-rays from the GC . M.Chernyakova (DIAS), D.Malyshev (DIAS), F.Aharonian (DIAS, MPIK), R.M.Crocker(MPIK), D.I.Jones(MPIK) 1 10°x10° Count and TS maps (>300 GeV) Gamma-rays from the GC 2 TS maps of the GC at different energies 300 MeV ­ 3GeV 3 GeV ­ 30 GeV 30 GeV ­ 300 GeV Gamma-rays from the GC 3 4 Gamma-rays from the GC Lightcurve 5 Gamma-rays from the GC Source spectrum Model X-ray and low-energy emission come from the central object, probably SMBH accretion disk. ...

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• Fast search through RTT150 data archive
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• High Energy Astrophysics Department at IKI RAN

... 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: . ...

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

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• The NMW survey homepage