... Omdetect classifies a source as being extended if its computed semi-major axis is greater than that of the point-spread function's semi-major axis (computed by using moments), by at least twice the error computed for the former. ... 1) The quantities the total raw pixel counts, total corrected raw pixel counts and the total raw background counts are initialised to zero. ... d) The total raw background counts is incremented by the value of the corresponding background-image pixel. ...

... Limitations on the Calibration Accuracy for COS/FUV Observations of Extended Targets and for COS/FUV BOA Observations in Cycle 23 . ... Cycle 23 Results . ... Extended targets with COS/FUV . ... Combined with the aperture vignetting, these effects may result in an unreliable flux calibration for COS/FUV/LP3 observations of extended targets (larger than 0.6? ... Users should make themselves aware of the limitations in the calibration of COS/FUV observations of extended targets or with the BOA at LP3....

Next: Vignetting correction Up: Spatial Analysis Previous: *imcontour* - Iso-intensity contour . In order to perform detailed analysis on an x-ray field, a user will need to access the various calibration files, apply corrections for vignetting and propagate errors. Vignetting correction . makevig, vigdata* - Apply Vignetting Correction to an image . ... Background Corrections . imcalc* - Obtain a background subtracted image for ROSAT PSPC Data . ... To Resample Calibration Images . ...

... Up: Software Applications . Previous: Software Applications . ... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... Department of Physics, Queen Mary, University of London, U.K. We report on our on-going software project the LWS Interactive Analysis (LIA) , which has been developed under the IDL environment. This is a processing and analysis software package for the Long Wavelength Spectrometer (LWS) aboard the Infrared Space Observatory ( ISO). ...

... 2MASS Overview . The 2MASS Sky . Executive Summary of 2MASS Second Incremental Data Products . Point Source Catalog . Extended Source Catalog . ... Distribution Mode for 2MASS Products . Data Release Plan . ... Point Source Catalog (PSC) . Extended Source Catalog (XSC) . ... 2MASS Source Naming Convention . ... General Properties of the Data Release . ... Comparison of Achieved Performance of Second Incremental Release Catalogs with Level 1 Science Specification . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

. Home . Catalog . EXSdetect . People . Papers . Tundo et al. 2012, A 547A 57T . Liu et al. 2013, A 549A 143L . Tozzi et al. 2014, 1405.3464 . ROSAT 400d . ROSAT MACS . ROSAT WARPS . ROSAT REFLEX . Chandra ChaMP . XMM XCS . XMM LSS . XMM XDCP . XMM X-CLASS . SWIFT-XRT . WFXT . Website maintained by Teng Liu, last modified on May 1, 2014 .

Next: CONCLUSION Up: CHIRPLET TRANSFORM SUBSPACES Previous: Nondilational Chirplet Transform . Suppose we choose a windowed sinusoidal FM signal for our mother chirplet. Such a signal has a frequency that periodically rises and falls (much like the vibrato of musical instruments or the wail of a police siren). ... Figure 14 . ... Using the warbling mother chirplet, we also computed the ``dilation-dilation'' ( ) plane of the chirplet transform (Fig. 16 ) for the pendulum data. ...

... Observatory . ... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > My data shows an extended, bright feature - what can this be? ... Observing Facilities . ... Observing with ESO Telescopes . ... Science Data Products Forum . ... ESO Data . ... You might also want to check http://www.eso.org/sci/observing/PublicSurveys/useful_links/OmegaCAM_images.html where we provide a collection of example OmegaCAM images, illustrating some special data features. ...

Detecting extended radio emission : SNRs , Relics , Halos Head-Tailed Galaxies Melanie Johnston-Hollitt Christopher Hollitt 2010 Detecting extended radio emission : SNRs , Relics , Halos Head-Tailed Galaxies 2010 1/14 Detecting extended radio sources Methods of detecting extended ... Detecting extended radio emission: SNRs, Relics, Halos & Head-Tailed Galaxies 2010 7/14 Some SNRs Supernova remnants are typically circular. ...

Next: The STScI NICMOS Calibration Up: No Title Previous: CONICA: The high resolution . The STScI NICMOS Calibration Pipeline . Introduction . ... Dark Current Subtraction . ... Input Data . ... Scalar Background Subtraction . 2-D Background Subtraction . ... Status and Goals of the NICMOS Calibration Plan . ... Photometry . ... Photometric Performance of NICMOS . ... NICMOS Photometry. ... ST-ECF Grism Spectrum Software for NICMOS Grism Data . ... Analysis . ... STScI NICMOS Software . ...

... N.A.Bobylev, Yu.M.Burman, Morse lemmas for functionals of the variational calculus, Func.Anal.Appl., ... N.A.Bobylev, Yu.M.Burman. ... N.A.Bobylev, Yu.M.Burman, A.B.Shubin, Algorithms for control with a minimal number of switchings, Automation and remote control , V.53, 5:619, 1992. ... TeX file ) . ... Quadratic Poisson brackets compatible with an algebra structure . ... Yu.M.Burman. ... Yu.M.Burman, Whitney's index formula in higher dimensions and Laplace integrals , Preprint math.DG/9801044 . ...

... On Monday, August 31 SSAU Rector Evgeniy Shakhmatov within the framework of an extended meeting of the Academic Council presented a report on the results of the university activities in the academic year 2014/2015, as well as outlined the prospects for the university development. ... In the academic year 2014/2015 students training in SSAU has been conducted on 67 Bachelor s programs, 45 Specialist s programs, 29 Master's educational programs and 6 fields of secondary vocational education. ...

... Bojan Nikolic web pages (r. 329) . ... Analysis of (radio) spectra . The RNested package is a re-implementation of the main algorithms from the radiospec package into the R statistical data analysis environment. ... packages ( "RNested" , repos = c ( "http://www.mrao.cam.ac.uk/~bn204/soft/R" , "http://cran.us.r-project.org" )) . ... RNested ? Nested Sampling in R & analysis of spectra . ... Copyright 2005 -- 2016, Bojan Nikolic feedback welcome ...

. First page Back Continue Last page Summary Graphics . First cut, cross calibrate to Leiden-Dwingeloo (0.5 ) . This tends to smooth out total column changes on small scales, but preserves velocity features .

... An analysis on new observational data taken with the MPFS and SCORPIO spectrographs indicates that we are dealing with the "galactic wind": the gas is blown above the galactic plane with the characteristic velocity of about 130km/s. The gas outflow is caused by a combined action of winds from the supernovae and young massive stars located in the galaxy's circumnuclear region. ... The most probable hypothesis is that the accretion of intergalactic gas clouds is feeding their star formation. ...

82% of the galaxy s total [O III] luminosity, confirming that J2240 is a quasar ionization echo. The ionized gas cloud has a strong kinematic link to the central AGN and is co-rotating with the main body of the galaxy, suggesting that it may be the remnant of a quasar-driven outflow. ... Detailed 3D spectroscopic analysis of other GB galaxies will provide further insight into the evolutionary history of this unique class of objects. ...

... IYA 2009 FREE TO ENTER COMPETITION: deadline extended . Due to a late surge of interest, the closing date for this competition has been given one FINAL extension - . to 15 December 2009. ... Thursday, 3 December 2009 16:10 . International Year of Astronomy, Ireland National Node . ...

... Forum . ... Recent Topics . ... MAO main . Info . Fw: [SPAM] =>[YSF-2015] Deadline has been extended! . info . ... Subject: [SPAM] =>[YSF-2015] Deadline has been . ... We are pleased to inform you that the deadline for abstract and forum paper . submission has been extended to June 15, 2015 . ... regards, YSF-2015 Organizing Team . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(пўпµя…пїпѕпґпґпµяЂп¶пєп°(п¤пѕяЂяѓпј)) . ... MAO NASU . ...

The NICFPS:Dither:Extended Source script allows you to a set of take pairs of dithered source/sky exposures. These pairs of exposures are taken over various points of a small 5-point dither pattern. ... dither point 1 on source . dither point 1 on sky . ... For more information see NICFPS:Dither:Point Source . ... As the script runs the status of each dither point is updated. ... This differs from the NICFPS:Dither:Point Source script, whose dither pattern is aligned with the detector. ...