. XMM-Newton Science Analysis System . omlcbuild (omlcbuild-1.29.1) [xmmsas_20070708_1801-7.1.0] . Meta Index / Home Page . OM source rates file (output from EVSELECT ) . OM background rates file (output from EVSELECT ) . OM OSW window data file (ODF) . OM ASC compatible FITS detected source list file (output from OMDETECT ) . OM ASC compatible FITS source region file (output from OMREGION ) . OM ASC compatible FITS background region file (output from OMREGION ) . XMM-Newton SOC/SSC -- 2007-07-09

... 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 . ...

... 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. ...

... 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....

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. ...

We present submillimeter statistical detections of galaxies discovered in the 5'У?5' Spitzer Early Release Observations (to ~4-15 ЮМJy 5 Я? at 3.6-8 ЮМm, 170 ЮМJy at 24 ЮМm) through a stacking analysis of our reanalyzed SCUBA 8 mJy survey maps and a Spitzer identification of a new submillimeter point source in the 8 mJy survey region. ... We also marginally detect the Spitzer 24 ЮМm galaxies at 850 ЮМm at 97% confidence and place limits on the mean submillimeter fluxes of the 3.6 and 4.5 ЮМm sources. ...

... 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. ...

... 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 . ...

... V. Definitions Science Background Observ ations Results Summary Definitions W hat is a Maser? A maser is an optical amplifier that produces coherent microwaves due to stim ulated emissions. ... A megamaser is an extragalactic source with an unprecedented isotropic lum inosity of ~103L It is a m illion times more lum inous than nearby sources of masers. ... Research in this astronomical area has experience great growth due to interf erometric techniques. ...

... 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. ...