... 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. ...

... Doug's Home Page . ... In the examples below we show a number of ways that data can be moved back and forth between S-Lang and Perl . ... Source code typeof : "undef"; __END__ __SLang__ variable foo = Any_Type [3]; foo[0] = "a string"; foo[1] = 23; define getfoo(x) { return foo[x]; } message( "In S-Lang:" ); vmessage( "typeof(foo[0]) = %s", string(typeof(foo[0])) ); vmessage( "typeof(foo[1]) = %s", string(typeof(foo[1])) ); vmessage( "typeof(foo[2]) = %s", string(typeof(foo[2])) ); . ...

... If your workstation can run any of the standard data reduction systems, it can run Draco. ... The Draco source files and executable will require about 20Mb of disk space. Draco is written in Common Lisp, specifically Allegro Common Lisp 4.2 beta by Franz, Inc. The distribution includes an executable image, so you don't need a Lisp system at your site. We chose Lisp since it offered a powerful, high-level development environment that is available on many different machines. ...

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. ...

... This class is designed to be an up to date summary of the last 10-20 years of observations relevant to Cosmology. ... Theory today is bombarded by a vast array of observational data but there remains no clear and preferred model for the origin and evolution of structure in the Universe. ... The inflationary paradigm and the nature of the Dark Matter - Inflation solves a lot of problems that are inherent in the standard Big Bang Model. ... Kinds of Dark Matter and Observational Constraints . ...

Next: Search and Retrieval of the AXAF Data Archive on the Web using Java . ... ESA Villafranca . ... The International Ultraviolet Explorer (IUE) mission has produced a large collection of spectroscopic data containing about 104,000 spectra of ca. 9,600 different objects. ... This contribution describes the IUEFA project at Villafranca, and the plans to make the archive available to the scientific community under through the INES (IUE New Extracted Spectra) project. ... Data set . ... 2D spectra . ...

The FITS archive & data processing pipelines . ... The archived data are broad band images (BBI) and long-slit spectra (LSS) plus their associated template and calibration files. The data in HFA can enter into the HyperLeda processing pipeline and the results can be freely downloaded. ... Definition of the file system (structure of the archive) . ... The coordinate systems must be updated when the data (pixel data, other keywords, related tables) are altered (eg. rebinning of the image). ...