... Full details of the observations, data reduction and calibration of this survey, and the production of the 7C(G) compact source list, are described in Vessey & Green (1998, MNRAS, in press). ... The Galactic longitude and latitude of the beam fitted position of the source. ... For multiple sources each peak has a separate entry in the source list, with its own beam fitted flux density and position, although the integrated flux and the centroid position are the same for each. ...

... Astrophysics Group . ... Surveys and Catalogues . ... 5ТА, with a resolution of about 1.2 У? 1.2 cosec(declination) arcmin 2 (EWУ?NS). The survey consisted of 24 fields, spaced 3ТА.5 in l , and alternating between b = +3ТА and -3ТА, but with a gap near l = 110ТА. ... As the CLFST has a wide field of view, and operates at a low-frequency so that ionospheric fluctuations are significant, the quality of images synthesized near bright sources is poor. ... the 7C(G) catalogue ? ...

... The GHRS Instrument Handbook is the single most useful reference about the GHRS except for this data handbook; it describes instrument operating modes as well as observing strategies. ... GHRS Instrument Handbook Versions . ... The Goddard High Resolution Spectrograph: In-Orbit Performance," 1995, PASP , 107, 871. ... Ebbets, D.C., J.C. Brandt, and the HRS Investigation Definition Team, "Ultraviolet High-Resolution Spectroscopy from the Space Telescope," 1983, PASP , 95, 543-549. ...

... 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. ...

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

... Berry, Richard Discover the Stars. ... An excellent brief guide if you want more detailed star charts and information than our kit has, in an easy-to-read format. ... A 50-Year Astronomy Field Guide. ... Handy book by an amateur astronomer with many clear guides to what to see when in the night sky, including specific moon and planet information for half a century. ... Web Sites . ... Weather Underground Star Maps: http://www.wunderground.com/sky/index.asp . ...

... CentralProcessor 0.11 documentation . ... A summary of the different types of preprocessing available to Selavy. ... One way Selavy can try to increase the apparent signal-to-noise of objects is to perform a thresholded multi-resolution wavelet reconstruction of the data, using the Уљ trous algorithm. ... These wavelet arrays describe the amount of signal at that scale at that location. ... Minimum wavelet scale to include in reconstruction. ... Maximum wavelet scale to use in the reconstruction. ...

... ESO Science Newsletter December 2015 . 17 Dec 2015 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... Read more . ... The allocation of ESO telescope time for Period 97 (1 April БЂ“ 30 September 2016) is expected to be emailed in the week beginning 21 December 2015. ... ESO Workshop, ESO Headquarters, Garching, Germany, 27 June БЂ“ 1 July, 2016 . ... Joint ESO, ALMA, NAOJ, NRAO Workshop. ...

... 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 . ...