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   DASTWAR: A Tool for Completeness Estimation in Magnitude-size Plane  
   
نویسنده koohpaee ali ,khakian ghomi mehdi
منبع iranian journal of astronomy and astrophysics - 2016 - دوره : 3 - شماره : 2 - صفحه:121 -130
چکیده    Today, great observatories around the world, devote a substantial amount of observing time to sky surveys. The resulted images are inputs of source nder modules. These modules search for the target objects and provide us with source catalogues. We sought to quantify the ability of detection tools in recovering faint galaxies regularly encountered in deep surveys. Our approach was based on completeness estimation in magnitude-size plane. The adopted method was incorporating articial galaxies. We improvised a software that estimates completeness in a given interval of magnitude and size. The software generates articial galaxies and iteratively inserts them to the source nder modules input image. Evaluating the ratio of the number of detected to the number of inserted articial galaxies provides us with means to estimate completeness. Completeness estimation is helpful in selecting unbiased samples.
کلیدواژه Galaxies: structure ,galaxies: size ,magnitude
آدرس amirkabir university of technology, department of energy engineering and physics, ایران, amirkabir university of technology, department of energy engineering and physics, ایران
 
 

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