... The srcinten task provides PROS users with a tool to comн pute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Howн ever, more accurate determinations require corrections for various instrumenн tal effects, such as reduction in effective area for offнaxis sources (vignetting), fraction of total source counts in the source aperture (encircled energy), and variations in detector quantum efficiency with event position on the detector. ... get net count, ra,dec,x & y QPSPEC ...

pro struct_add_field, struct, tag, data, before=before, after=after $ , itag=itag ;Add a new field to an existing structure. ... Append new field . if itag gt 0 then begin ;target field occurs first new = create_ struct ( tags [0], rec.(0)) ;initialize structure for i=1, itag -1 do begin ;insert leading unchange new = create_ struct ( new , tags [i], rec.(i)) endfor new = create_ struct ( new , tag , data [0]) ;add new field endif else begin new = create_ struct ( ...

... Multiverses: Do Other Universes Exist . ... 1.03.2006 . ... If one or more of the multiverse hypotheses is correct, then quite possibly they do. In the above computer-enhanced illustration , independent universes are shown as independent circles or spheres . ... An entire set of parallel universes is called a multiverse . The human eye might represent the possibility that realizations of some multiverse hypotheses might only exist in the human mind . ... Publications with keywords: universe . ...

... About ATNF overview . ... CSIRO ATNF Data Archives . ... Next: Obtaining Your Final Files Up: Correlating your Data Previous: Correlating your Data б  Contents . Put in next set of tapes. Edit your schedule file on elleba and comment out the newtapes and file close commands that have just been executed and uncomment the next set of file close and newtapes commands. We now restart the correlator on the next set of data, which for example starts at 16:00:00 on all tape sets; . ...

... The method to be used for a given source is set by the parameter `` phototype ''. ... If no background image is given the input image will be used instead. phototype =1 Aperture photometry using the specified aperture and inner and outer background annulus radii and the background subtracted using the given value for the background counts per pixel ( parameter background ? ). phototype =2 Least-squares fit to the point-spread function , excluding a constant term, using a ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2010 November 14 . Multiverses: Do Other Universes Exist? ... If one or more of the multiverse hypotheses is correct, then quite possibly they do. ... An entire set of parallel universes is called a multiverse . The human eye might represent the possibility that realizations of some multiverse hypotheses might only exist in the human mind . ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...