... counts were extracted by AE in an annular region around each source, excluding the ... ray source numbers and densities in annular regions centered on the galactic nucleus ...
... Data Extraction Parameters Time Range Annular Radii (pixels) Streak Width (pixels ... projected on the sky and summed in annular bins around the star, the CX emission ...
... coupled with the 0.5 spatial resolution is well suited for studying the spectral parameters of the gas in 1 annular regions ... Summary plot of the temperature parameters derived for different annular regions in the sample galaxies. keV at the 90 ...
... The background is usually estimated from an annular region surrounding the source of interest, or from a suitable ... of strong pileup in the core of the PSF, only those data within an annular region surrounding the center can 21 be used ...
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Ссылки http://hea-www.harvard.edu/AstroStat/BEHR/park_etal_apj.pdf -- 599.8 Кб -- 11.06.2006 Похожие документы
... Point sources were searched for by sliding a circular source region and concentric annular background region over the maps; the diameters of the circle and annulus were adjusted to account for the variation in the telescope point spread function with off ...
... The sectors were divided in consecutive annular regions, centered at the nucleus ... removal, the ARFs 8 generated for the annular regions were rescaled according to the ...