... Meta Index / Home Page / Description / Specifying source region shapes . When radiusstyle =`contour', the task calculates the source region shape as an elliptical locus which approximates the contour of the PSF at a given flux value. ... Clearly, in order to calculate the shape of such a flux contour, it is necessary firstly to normalize the PSF to the source brightness and secondly to determine the flux level (in `brightness' units per pixel) at which to find the contour. ...

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• Source within central-enhancement region - bit 5
• Source non-overlap algorithm

... This section will deal with obtaining photons within specified regions of an image. Available regions are: Annulus Box Circle Ellipse Field -- entire field Irregular region based on intensity of map... i.e. region defined by contour levels. ... The imcnts task in the xray-spatial package sums the source and background counts in specified regions, and subtracts one from the other properly normalized. ... imcnts* - Find counts in an extended region, after removing an embedded point source . ...

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• Source Selection
• *imcnts* - Find counts in an extended region, after removing an embedded point
• *imexamine* - General analysis of image containing many sources

... 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....

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• casacore: lattices/Lattices/LCRegionSingle.h Source File
• casacore: images/Regions/WCUnion.h Source File
• casacore: images/Regions/WCIntersection.h Source File

... De Breuck+ . WISH catalogue (sources in the region declination -25 to -9 degrees) . ... For each entry are listed: Name : In hhmm.s+ddmm format, A,B,C,D refer to the components of the multi-component source immediately preceding these component entries. ... This treshold is the fluxratio SI/S that is exceeded by less than 5% of the unresolved sources. b-M,b-m are in units of arcsec, PA in degrees from North, These parameters have not been deconvolved Nse : The local rms-noise level in mJy/beam. ...

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• Radio survey for new compact HII regions
• Source Positions
• Discussion

... 40   template < class FuncObject> void processIntersectingRegions ( const SphericalRegionP & region, FuncObject& func) const . ... 44   const RootNode* node = treeForRadius[i-1]; . ... 87   const Vec3d & c0 = triangle.getConvexContour().at(0); . ... 195   template < class FuncObject> void processIntersectingRegions ( const Node& node, const SphericalRegionP & region, FuncObject& func) const . ... 212   template < class FuncObject> void processAll ( const Node& node, FuncObject& func) const . ...

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• Stellarium: core/StelSphericalIndex.hpp Source File
• Stellarium: core/planetsephems/calc_interpolated_elements.h Source File

... We describe enhancements made to Sherpa for the CIAO 2.0 release, concentrating upon those that enable a user to: (1) analyze Chandra X-ray Observatory grating data with wavelength- or energy-space models; (2) simultaneously fit background and source datasets; and (3) estimate and visualize confidence intervals and regions. ... Sherpa is the modeling and fitting tool of the Chandra Interactive Analysis of Observations (CIAO) software package (Doe et al. 1998 and references therein). ...

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• A New PROS Task for Calculating HRI Source Intensities or Upper Limits
• QPSIM: An IRAF/PROS Tool for Source Simulation
• Recreating Einstein Level One Processing Exposure Masks and Background Maps in

... Solar flare activity is produced by the processes of accumulation and release of energy in an active region. ... In the framework of study of solar active regions, producing powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp drop in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ...

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• Detection of Radio Transients and Variable Radio Sources Using the Archive Data
• Study of radio spectra and variability of GPS sources
• Solar system sector, archive 2010

... Near-IR broad-band imaging of V1318 Cygni reveals the presence of two distinct stellar components oriented north-south, a result recently reported by Aspin et al. ... The distribution of the high density molecular gas traced by the CS J emission is highly concentrated around V1318 and V1686 Cygni, while the total column density of gas traced by the J shows a ridge morphology centered on these sources. ... A molecular outflow has been detected in CO J . ...

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• Radioastronomy reduction procedures
• NIR IMAGES OF SFR MASERS (Abstract)
• NIR Inages of H2O Masers (Abstract)

... 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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• harak_e
• Results scientific researchs 20
• V.Shergin's Home Page

... HST . What is the meaning of the 2x2 resolution element in the ACS ETC for an extended source ? ... HST Peer Review Process . ... HST Overview . ... What do I do if my source is larger than the 2x2 element ? When you are using any ACS ETC (imaging, spectroscopic or ramp) with an extended source, the ETC does all calculations for a boxsize of 2x2 pixels, or one resolution element. ... The 101x101 box is 2500 time the size of one resolution element and the square root of 2500 is 50.) ...

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• A Spitzer Space Telescope Far-infrared Spectral Atlas of Compact Sources in the
• WFPC2 Photometry SYNPHOT Resources
• Submillimeter Detections of Spitzer Space Telescope Galaxy Populations

... The actual cross-correlations were done as follows: north of WGACAT was correlated with the GB6 catalog with a correlation radius of one arc minute. ... We therefore cross-correlated WGACAT with the GB6 and PMN radio catalogs with a 1.5 arcmin radius. ... As a result of this experiment, we then added to the WGACAT/PMN candidate list the 29 unclassified sources obtained from the 1.5 arcmin correlation and having PSPC offsets arcmin, ratio between X-ray/radio offset and positional error , and . ...

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• Previously Identified Sources
• ESO - Thesis Topic: Planetary Nebulae and HII regions in the Elliptical Galaxy
• Explanation of the abbreviations used

A Neutral Hydrogen Survey of the NGC 7332 Region with the Arecibo L-band Feed Array 1A R. F. Minchin1, E. Momjian1, L. Cortese2, K. L. O'Neil3, P. A Henning4, J. I. Davies2, AGES Team recibo Observatory 2Cardiff University 3National Radio Astronomy Observatory 4University of New Mexico If I'm not here, then ... 1 The noise distribution in 20,000 km s the NGC 7332 field cube. ... NGC 7332 field continuum sources overlaid with contours from the NVSS. ... Left) Cumulative distribution of offsets. ...

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• http://www.naic.edu/~astro/School/Talks/handson_gbt2.pdf
• http://www.naic.edu/~astro/School/Talks/large_pdf/handson_gbt2_2.pdf
• http://www.naic.edu/alfa/ealfa/papers/2006AAS...209.9503M.pdf

... SELECT file, title, rank(ts_vec, to_tsquery('create schema')) FROM postgresql_manual WHERE ts_vec @@ to_tsquery('create schema') ORDER BY rank(ts_vec, to_tsquery('create schema')) DESC LIMIT 5; file | title | ... CREATE SCHEMA | ... SELECT file, title, rank('{0, 0, 0.01, 0.99}',ts_vec_tb, to_tsquery('create aggregate')) FROM postgresql_manual WHERE ts_vec_tb @@ to_tsquery('create aggregate') ORDER BY rank('{0, 0, 0.01, 0.99}', ts_vec_tb, to_tsquery('create aggregate')) DESC LIMIT 5; file | ...

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• Venus Picture List
• APOD: 2016 January 25 - Where Your Elements Came From
• APOD: 2007 February 24- X-rays and the Eagle Nebula

... Pre-university education . ... The NEICON consortium provides free test access to three platforms of electronic resources of McGraw-Hill Education company: . ... ACCESS ENGINEERING (www.accessengineeringlibrary.com ) is the largest platform in the area of technology and engineering science. It contains over 250 key items as well as interactive graphs, tables and video materials. ... ACCESS MEDICINE (www.accessmedicine.com) is the basic medicinal platform of McGraw-Hill Education. ...

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• IX International forum "Optical systems and technologies"
• SSAU scientists will be engaged in printing 3D elements of the promising

... Flux Sign Expo . ... 0.13 PHA . ... The map above is movable . ... Original shows mosaics with all data available. Flux map Error map Significance Exposure . Flux and error maps are in mCrab units. All maps are convolved with instrumental point spread function (PSF) which is Gaussian ( =5'). Exposure maps are in ksec. INTEGRAL/IBIS 9-year Galactic Hard X-Ray Survey* , A , Volume 545, id.A27 { NASA ADS | ... 7-year Galactic Bulge map , 2009 . 9-year Galactic survey , 2012 . ...

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... Astrophysics Group . ... Variability studies . ... The variability of radio sources at 151 MHz has been studied in detail using the CLFST , as part of the 7C survey. ... The 7C survey of radio sources at 151 MHz ? ... McGilchrist & Riley 1990 MNRAS, 246, 123 ; . ... From Green & Riley (1995), the 51P and 52P source lists at 408 MHz, plus the 53P and 54P source lists at 1420 MHz. From Riley & Green (1998), the 67P and 68P source lists at 408 MHz, plus the 69P and 70P source lists at 1420 MHz. ...

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• Astrophysics Group 7C
• The 7C(G) survey
• G338.3-0.0

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   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   sources (NS + MS star), super accreting BH, and BH + supergiant binaries, all as functions of time elapsed after the burst. ...

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• Scientific Interests
• X-ray Galactic Sources and Binary Radiopulsars as Probes of the Initial Mass
• Discussion and conclusions

. Comment on J1239-1023 . No image is shown by Dallacasa et al. (1998) as they did not find the VLBI structure at 2.3 and 8.4 GHz prominent, just dominated by a compact region barely resolved in position angle about -45 . In our case the source is well resolved, with a jet pointing to the W-NW direction, in agreement with what is seen in the images at 2.3 and 8.4 GHz from the VLBA Calibrators database. VLBApls home page . Last modified: 16 Oct 2000

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• VLBApls source sample

... A correlation between metal abundance and orbital elements (the eccentricity and angular momentum) has been found for three semples of disk stars of our Galaxy with abundance derived from detailed analysis. The correlation indicates that metal abundance in the Galaxy kept increasing after the birth of old disk stars and that the Galaxy kept collapsing during the formation of its disk subsystems. ...

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For calculating model spectra of early-type helium stars in LTE, we maintain a database of atomic data for, mostly, blue-visual absorption lines of light elements. The data is sorted with one file for each ion. ... III = ++ . ... It will work on both complete linelists (including the atomic data at the start and references at the end) or raw ion files (such as Ni2.d). ... A Fortran utility to convert linelists downloaded from the Vienna Atomic Line Database into the new QUB format. synspec_qub . ...

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• Armagh Observatory
• IAJ: Resources: Software
• Resources | OASES Over us All is the SElfsame Sky | OASES 2010