Next: Implementation Up: Image Restorations of High Previous: Technique . This method has been tested on many kinds of data both real and simulated. Here we present three examples in which the structure of the background is of increasing interest and photometry of point sources of diminishing importance. ... Fig. 1 shows the results of this and Fig. 2 shows the photometric accuracy and also a histogram of the background image. ... Fig. 4 shows the quality of the resulting photometry. ...

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• Technique
• Dust Attenuation in Late-Type Galaxies. I. Effects on Bulge and Disk Components
• Fine Guidance Sensor Instrument Handbook

... Multi-frequency synthesis Characteristics of the dirty beam Linear deconvolution Constraints CLEAN Maximum entropy Restoration Multi-frequency deconvolution 2 Filling the Fourier plane Use many antennas (6 antennas or more) Use Earth rotation (12 h observations) Physically move antennas observing time number ... A good non-linear deconvolution algorithm is one that picks plausible invisible distributions to fill in the Fourier plane. ... Generally it is quite a robust algorithm. ...

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• http://www.atnf.csiro.au/whats_on/workshops/synthesis2003/talks/deconv.pdf
• http://www.atnf.csiro.au/research/radio-school/2011/talks/principles_of_reduction2.pdf
• ATNF Colloquium

... A concrete application is displayed step by step by the command: TUTORIAL/CLOUD . The data used for this example are CaII absorption features observed in the spectrum of SN 1986g in NGC 5128 (observer: S. d'Odorico, instrument: CASPEC). ... Sampling is 0.05? per pixel and the measured instrumental resolution, 17km/s. The final cloud model consists of 12 absorption doublets. The corresponding image includes both components K and H and has been convolved by a gaussian PSF of 0.22? (17km/s) FWHM. ...

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• MIT-GB catalog
• WSRT deep surveys

Next: Transparency of the Stochastic Up: Model of the Galaxy Previous: Frequency distribution of galactic . ... The parameters of the model resulted from a numerical fitting of various data, such as the observed distribution of the young star population and neutral hydrogen, the density of population II stars in the vicinity of the Sun, the galactic rotation curve and the dynamics and distribution of globular clusters   and dwarf irregular satellites of the Galaxy. ...

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• Galactic potential
• Seminars

CIMA is more than just the observing tool - in fact, the observing tool is just a part of a bigger package called the CIMA software package. ... There is also a another package called the CIMA WAPP software which contains the WAPP software, the special Tcl/Tk interpreter used by CIMA and support libraries. ... All CIMA software components recognize the following general options that are part of the CIMA version selection system: . ... The select_cima script can be used to set up a default version. ...

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• Example Observing Projects
• Heiles Symposium Presentations
• GALFACTS Team Ready

... Previous: ESO C Library for an Image Processing Software Environment (eclipse) . ... A new CLEAN-type algorithm searches for model components not in the dirty image but in the multi-resolution wavelet transform of the dirty image based on the dirty beam. ... The improvement of this prototype Wavelet CLEAN, which does convolve with the dirty beam, can be attributed to a suppression of noise and aliasing in the dirty image by use of information in the sidelobes of the whole image domain. ...

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• ADASS 2003 Conference Proceedings
• AIRY: Astronomical Image Restoration in interferometrY
• Application of the Minimum Determination Algorithm to the Study of the Fine

... Here some data observed on the 6m telescope with IFP installed in the OLD focal reducer are presented. ... Mkn 3: velocity field . ... NGC 5252: [OIII] image . ... NGC 5252 was observed 23 Feb. 1998 in the [OIII]5007 emission line with CCD TK1024 as detector. ... We observed the ionized gas velocity fields of the spiral galaxies with two purpose. ... Restored velocity field of NGC 157 in the reference frame rotating with the pattern speed overlaid on the Ha image of the galaxy . ... NGC 4100 . ...

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• INASAN preprint: A method of the reconstruction of 3D velocity field of gas in
• These galaxies were observed (Project: vortex)
• Laboratory of spectroscopy and photometry of extragalactic objects : Vortex1

... Science . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Properties of kinematically decoupled structures in Early-Type Galaxies . ... Science Users Information . ... ESO-MIDAS . ... ESO Science Newsletter . ... The project consists in measuring the stellar kinematics, stellar populations, dynamics, and morphological properties of the kinematically decoupled structures observed in the inner regions of Early-Type Galaxies. ... Return to list of thesis topics...

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• OYSTER Lab
• VLTI Calibrator Selection Help Page
• NPOI Lab

Next: XMM_MISCDATA Up: CCF Components Previous: Appendix: List of valid Contents . While some relevant RGS calibration data are given in the general-purpose CCF components . ... Some information concerning the maintenance of RGS CCF files is given below, though more details are available in the release notes that accompany new file releases and other technical notes. ... Use of CCF components by RGS SAS tasks . ... Purpose . Functionality . Ground calibration . Maintenance procedures . ...

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• CCF Components
• OM Related CCF Components
• Cross References to In-Flight Calibration Targets

The preliminary version of documentation of the format for the interchange of calibrated optical/IR data being developed by Tom Pauls of NRL and John Young of COAST was presented and a number of issues discussed. The proposed format is in the general form of a relational database with different components stored in FITS binary tables. ... Should there be a single data table type that includes all data types, or multiple table types, one per data type? What data types are needed? ...

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• Inference of Coefficients for Use in Phase Correction
• Example of an OOF analysis for the GBT
• Example of an OOF analysis for the GBT Bojan Nikolic web pages (r. 329)

... In this first example, we allow an object to fall onto a small radar unit . The resulting Time-Frequency distribution is shown as a contour plot in Fig. 8 (a). Figure: FIGURE GOES SOMEWHERE IN THIS GENERAL VICINITY . ... Its density plot appears as an image in Fig. ... The response has a very high peak, as evidenced from Fig. ...