IRAF/STECF 2-D spectrum point source / background decomposition package . ... The general problem is one of spectral decomposition - of separating the spectra of the point sources from the background. ... The STECF IRAF layered package "specres" provides two tasks to extract point source spectra from 2-D images (either longslit, multislit or cross-dispersed) and decompose the full background over the image. ... A Point Source Function spectrum image is required as a 2-D spectrum. ...

... Two background corrections can be performed with the package: . Interorder background: The scattered light in the interorder region is measured at a certain number of positions and the background map is provided by polynomial or spline interpolation. ... Sky background: Sky windows are defined on both side of the orders with the comamnd DEFINE/SKY and sky background is extracted using EXTRACT/SKY . ... DEFINE/SKY object 2 CURSOR . EXTRACT/SKY object sky FILTER . ... EXTRACT/ECH object ext . ...

... In the spectrometry of point sources, the advantage of obtaining long slit spectra over using single aperture spectra is that it provides a simultaneous spectrum of the background on both sides of the point source. ... The STECF IRAF layered package "specres" provides two tasks to extract point source spectra from 2-D images (either longslit, multislit or cross-dispersed) and decompose the full background over the image. ... A Point Source Function spectrum image is required as a 2-D spectrum. ...

... deceit is distributed with the following Perl functions that can be used to fill the dataset with data from text files. rows . ... fillColumn . The function signature is as follows: the first argument must be the variable col , the second the name of a text file from which the data is to be extracted, the third argument an integer denoting from which column in the text file data should be extracted. ... Vector columns in the text file are delimited by the separator character. ...

Both IRAF and STSDAS are provided free of charge to the astronomical community. ... A complete description of how to install the synphot data files is provided in section A.3.2 . ... You should retrieve the README file from the directory /software/ stsdas/v2.0 and read it to find out which files you should retrieve. ... To do this, you need to retrieve a series of compressed tar files from the STScI FTP site (ftp.stsci.edu) in the directory software/stsdas/refdata/synphot . ... usr/iraf/stdata . ...

The final ChASeM33 source catalog . ... Back to Main Page . ... This is the final version of the ChASeM33 source catalog ("D" release) which contains 662 X-ray sources (70 are "possibly/confidently" extended). ... The ChASeM33 source catalog was created by using ACIS Extract, a software package written and maintained by Patrick Broos at Penn State University (USA). ... To learn about the adopted data reduction strategy and the results, we refer to The Final Source Caftalog paper from T llmann et al. ...

... Stromlo before the 2003 fires . ... The gardens at the Director's ResidenceтАж . Sidebar Left . Sidebar Top . No Sidebar . ... Title: The gardens at the Director's Residence on Mt. Stromlo often provided the setting for observatory visitor-receptions . ... Stromlo often provided the setting for observatory visitor-receptions Pricilla Bok walks a guest around the gardens which in 1957 reflected former Director Richard Woolley's botanical designs. €й Copyright Helen Bailey Bayly. ...

. The shell provides you with one or more of the following features. You can: . create an environment that meets your needs . write shell scripts . define command aliases . manipulate the command history . automatically complete the command line . edit the command line . Some shells provide more of these facilites than others. Summary table .

... As introduced at ADASS I and II (Bland-Hawthorn, Shopbell, & Cecil 1992), a Fabry-Perot analysis package for IRAF is under development as a joint effort of ourselves and the IRAF group. In this paper, we describe an important component of the Fabry-Perot package, the fpplot task for spectral plotting and fitting. ... Automated techniques are essential for quantifying the thousands of spectra in a Fabry-Perot data cube for velocity and photometric studies. ... First there is the display of spectra. ...

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Tuesday, 23 June 2009 13:21 . International Year of Astronomy, Ireland National Node . [Back To Top] .

Skim Study in CM2 Minghui Lu University of Oregon 0 For Fully Inclusive b s group Notre Dame-Oregon-Pisa-SLAC-UCSC 0 Skim Study in CM2 ­ p.1 Outline Introduction 0 skim cuts 0 mass and energy spectrum The Comparison of 0 mass spectrum between SP5 MC and run1 data Preliminary 0 mass fit Outlook 0 Skim Study in ...

... All the parameters provided in this database have been obtained using the the MIRIAD ( Sault et al. 1995 ) task MBSPECT . MBSPECT makes a spectrum of the velocity (or frequency) axis of a cube. The spectrum is beam-weighted, over the width specified, for the other image axes. ... Robust parameters are calculated by using an algorithm which minimises the mean absolute deviation of the flux-weighted velocities. mask= This specifies the x-axis ranges to be excluded from any continuum fit. ...

The FITS "World Coordinate System" (WCS) standard defines keywords and usage that provide for the description of astronomical coordinate systems in a FITS image header. ... I: "Representations of world coordinates in FITS" , Greisen, E.W. & Calabretta, M.R. (2002), Astronomy & Astrophysics , 395 , 1061-1075. ... This diagram illustrating Bonne's projection with conformal latitude +35 was produced by WCSLIB , a C implementation of the coordinate transformations defined in the FITS WCS papers. ...

... 400mm f/2.8 Nikor lens: images the sky on the entrance slit. ... The optical system maintains image quality along the slit length so that each row of the image is a spectrum of that spatially selected region of the sky. 180mm f/2.8 Nikor lens: collimates the light from the slit. ... The auxiliary optical platform on WISPI now accomodates a short focal lens and a guiding/imaging video system that may use sub-pixel corrections to provide feedback to the tracking drive motors. ...

Mathematics from the class of 2000 (section B) of the 57th school (in Russian). These problem sets, originally given in seminars, are available in TeX format, PostScript, and as Hewlett-Packard laser printer files. The syllabus "math-student" (in Russian) describes the traditional range of topics studied in math classes. ... Math Competition by Correspondence (in Russian). ... These Zip files contain problems from various years. ...

... ISC Kosmotras . ... Dnepr launch record 17 August 2011. ... On 9 September 2009, a contract was signed between ISC Kosmotras and SSTL for the launch of Nigeria-2 and NigeriaSat- у satellites on Dnepr rocket as part of 2010 cluster launch from Yasny Launch Base. According to information provided by SSTL the NigeriaSat-2 satellite is being built for the Nigerian government (NASRDA) as a follow-on to the NigeriaSat-1 satellite that was launched in 2003. ... E-mail: info@kosmotras.ru . ...

Astronomy Picture of the Day . ... 6.03.2009 . ... To reveal the faint background galaxies and trace the comet's fading tail, the remarkable picture is a blended composite of telescopic exposures aligned with the both the stars and the speedy comet . The largest galaxies seen left of the comet's head or coma are cataloged as NGC 3016, NGC 3019, NGC 3020 and NGC 3024 and lie at a distance of 100 million light-years or so. ... Publications with keywords: comet . ... Little Planet Lovejoy . ...

... start : people : olegbartunov . ... Word of the Day provided by The Free Dictionary . ... Article of the Day provided by The Free Dictionary . ... This Day in History provided by The Free Dictionary . ... Today's Birthday provided by The Free Dictionary . ... In the News provided by The Free Dictionary . ... Quote of the Day provided by The Free Library . ... Spelling Bee provided by The Free Dictionary . ... Match Up provided by The Free Dictionary . ... Hangman provided by The Free Dictionary . ...

... Make a new empty directory; you'll need about 6 megabytes; . ... Send some mail to me ( bill@nineplanets.org ) with the URL of your new copy and its physical location so I can update the mirror list; also let me know if you would like to receive email notifications of future updates. ... add some text to describe your site; . ... Several of the mirror sites are using the "mirror" package to keep their copies of TNP up to date automatically instead of waiting for me to send these notices. ...

... Make a new empty directory; you'll need about 6 megabytes; . ... Customize "host.html" as described below (optional); . ... Send some mail to me ( billa@znet.com ) with the URL of your new copy so I can update the mirror list; also let me know if you would like to receive email notifications of future updates. ... Several of the mirror sites are using the "mirror" package to keep their copies of TNP up to date automatically instead of waiting for me to send these notices. ... Mirrors .. ...