XMM-Newton Science Analysis System . ... Meta Index / Home Page The position of a source on the image ( XPOS and YPOS ) are referred to a coordinate origin in which the pixel at the far-left and bottom of the image has coordinates 1.0, 1.0. The coordinates are computed using the first-order moments of the intensity profile, and the algorithm is similar to that used in the sextractor program (please see the sextractor manual for a detailed discussion). XMM-Newton SOC/SSC -- 2008-10-22 ...

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... This paper describes the capabilities of GIM2D, an IRAF package for the quantitative morphology analysis of distant galaxies. GIM2D automatically decomposes all the objects on an input image as the sum of a S?rsic profile and an exponential profile. ... GIM2D (Galaxy IMage 2D) is an IRAF package written to perform detailed bulge/disk decompositions of low signal-to-noise images of distant galaxies. ... The segmentation image is used by GIM2D to deblend galaxy images. ... Create a residual image. ...

This document contains a summary of the options for processing column-based text files. Funtools will automatically sense and process "standard" column-based text files as if they were FITS binary tables without any change in Funtools syntax. ... Data lines follow the optional header and (for the present) consist of the same number of columns as the header. ... A successful parser is one which returns a consistent number of columns for all rows, with each column having a consistent data type. ...

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... With the FORS1 instrument of the ESO VLT, we have performed during the 2007 apparition of 133P/Elst-Pizarro quasisimultaneous photometry and polarimetry of its nucleus at nine epochs in the phase angle range 0 - 20 . ... Geometric information about the dust tails of 133P/Elst-Pizarro. ... The most logical explanation of the almost absent coma and the narrow dust tails is low nucleus activity and the small terminal expansion velocity of the dust grains after release by the nucleus of 133P/Elst...

... CS - Chris Springob Sabrina - Sabrina Steirwalt BK - Brian Kent KS - Kristine Spekkens LH - Lyle Hoffman JR - Jessica Rosenberg Desh - A. Deshpande ******************** Saturday, 8 May 2004 ******************** Welcome and Overview 8:30-9:30am (SS) ------------------- Welcome: BB - I am a proponent of conducting alfa in consortia - The role of national center is to strengthen University groups - While there is a partnership b/w NAIC and universities ... Desh: We have the data. ... Desh: No. ...