... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Quasi-stationary electron distributions for the different values of the particle escape time. ... The electron-cyclotron maser instability is widespread in the Universe, producing, e.g., radio emission of the magnetized planets and cool substellar objects. ... The model used takes into account the radiation escape from the source region and the particle flow through this region. ...

Next: Inspection of results Up: *fit* - Fit Data Previous: Verbose Mode . If the number of net counts for a source is less than it is impractical to fit the data in all 34 energy bits. However, if the flux is required, then a fit must be performed first. ... Fit will then calculate the normalization of the model and xflux can be used to determine the flux and luminosity of the source from the best fit model. xs> fit rebin=yes . ...

XMM-Newton Science Analysis System . ... Meta Index / Home Page / Description / Out-of-time events . If withoutoftime =y the task does not create the ``normal'' events file but uses the input file instead to create an event file where all events are treated as out-of-time events. ... Similarly, for Full Frame and Extended Full Frame modes (currently) the 11 rows closest to the CAMEX are set bad onboard but sources in these rows may also cause unrecognized out-of-time events. ...

Next: Publication Costs of Astronomical Research . ... Purple Mountain Observatory, Academia Sinica, Nanjing 210008, China, e-mail: library@nanjing.jspta.chinamail.sprint.com . This article includes a general overview of the Purple Mountain Observatory (PMO) followed by a description of the document resources held in the Observatory Library. ... The predecessor of the Observatory was the National Research Institute of Astronomy in the former Academia Sinica and its observing site, the PMO. ...

... Classes . Files . ... File List . File Members . scimath . Functionals . ... ;thrown 00077 // li AipsError if incorrect parameter number specified. 00078 // /thrown 00079 00080 template class T class GNoiseParam : public Function T 00081 { 00082 public : 00083 //# Enumerations 00084 00085 //# Constructors 00086 // Constructs the GNoise, Defaults: 00087 // mean=0, var=1.0 00088 // group 00089 GNoiseParam (); 00090 GNoiseParam ( const Double mean , ...

... General information . ... Staff . Research staff . Technical, administrative & librarian staff . ... Staff in alphabetic order . Research . ... Technical reports . Projects . ... General interest seminars . ... IT Services . ... Information . ... Historical highlights . Historical research . Historical archive . ... Projects and events . Online resources . ... Information Services . Catalog and Resources: . ...

Next: The Model Up: No Title Previous: Radiopulsars as Sources of . In this section, we study the evolution of stellar populations on a time-scale of 10 Myr for a starburst љ occurring under conditions similar to those in the Galactic Center (see Lipunov et al. (1995d)[ 126 ]). We estimate the expected number of X-ray transient љ sources (NS + MS star), super accreting BH, and BH + supergiant binaries, all as functions of time elapsed after the burst. ...

... 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. ...

... Our Java and Python software runs anywhere on Windows, Mac, and Linux . ... Alsvid - Algorithms for visualization and processing of image data with Python . Our observatory software . PyDome - Astronomical dome control in Python . ... Software archive . ... XEphem for visual access to astronomical data and remote telescope operation (Linux and Mac OS X) . ... SAOImage DS9 for astronomical data visualization (Linux, Mac OS X, and Windows) . ... G ttingen ImageJ astronomical resources . ...

Stellarium 0.12.3 . ... Renderer . FileљStructure . ... core . ... StelVertexAttribute.hpp . ... 53 љ inline int attributeDimensions( const AttributeType type) . ... 122 љ qDebug() << "Unknown vertex attribute type: \"" << typeStr . ... 179 љ // Ensure that every kind of vertex attribute is present at most once. 180 љ foreach ( const StelVertexAttribute & attribute, attributes) . ... 186 љ "Vertex type has more than one vertex position attribute" ); . ... 239 љ #define VERTEX_ATTRIBUTES(...)\ . ...

... Returns a rank value using a cover density algorithm that penalizes search words that are far apart. rank_cd([ k INT4, ] tsv TSVECTOR, tsq TSQUERY [, normalization INT4]) RETURNS FLOAT4 . ... SELECT set_curcfg('default_english'); set_curcfg ------------ (1 row) SELECT file, title, rank_cd(ts_vec, to_tsquery('create schema')) FROM postgresql_manual WHERE ts_vec @@ to_tsquery('create schema') ORDER BY rank_cd(ts_vec, to_tsquery('create schema')) DESC LIMMIT 5; file | ... CREATE SCHEMA | ... Schemas | ...

National Radio Astronomy Observatory July 11, 2005 NAIC/NRAO Single-dish Summer School Continuum Observing Jim Condon Continuum Emission and Single Dishes · Continuum sources produce steady, broadband noise · So do receiver noise and drift, atmospheric emission, ground pickup, confusion, etc. ... National Radio Astronomy Observatory July 11, 2005 ­ Single -dish Summer School 7 This dense grid of pointing calibrators can be used to reduce tracking errors north of = -40°. ...

... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...

... Science . ... Science Users Information > Libraries > Information resources > Librarians' Professional Resources . ... ESO Data . ... IFLA: Digital Libraries Resources and Projects . ... A resource for librarians on the topic of electronic content licensing for academic and research libraries. ... A virtual library resource center, designed to break through the information overload of the Web to bring the best library and reference sites together with insightful editorial in one user-friendly spot. ...

... Table 1: Solar Flares with Detected Gamma Radiation . ... Table 3: Upper limits for other selected pulsars . ... Table 5: Gamma-ray Bursts . Table 6: Normal galaxies . Table 7: Positie Detecctions of radio-loud quasars and BL Lac objects . Table 8: Marginal detections of radio-loud quasars and BL Lac objects . Table 9: Upper limits for radio-loud quasars, BL Lac objects, and radio galaxies . Table 10: Upper limits for Seyfert galaxies and Selected radio-quiet quasars . ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

... Amazingly detailed, this false-color x-ray image is centered on the galaxy Cygnus A. Recorded by the orbiting Chandra Observatory, Cygnus A is seen here as a spectacular high energy x-ray source. But it is actually more famous at the low energy end of the electromagnetic spectrum as one of the brightest celestial radio sources. ... With brilliant Venus above the western horizon at sunset and Jupiter and Saturn high in the east by early evening, November's night sky is filled with bright planets. ...

... Green and blue curves - CYGAM telescope (squares - no constraints on the angle a , triangles - a <0.5 0 ); red curve - EGRET telescope. Effective area versus photon incidence angle to relative the longitudinal telescope axis (squares - no constraints on the angle a , triangles - a <0.5 0 , spectral index g= 2). ... Angular resolution for normal to the axis X incidence versus source power law spectrum index (squares- no constraints on the angle a , triangles- a <0,5 0 ). ... CYGAM (PDF, 450 Kb) . ...

... This page is intended for those with a technical background who want more detail than was available in the press releases. 23) 5% of the sources. ... Radio quiet quasars have essentially uniform B-K colours (around 2.5) while these Parkes sources had B-K ranging from 2.5 out to 8! ... Dust: these actually are typical blue quasars obscured by dust somewhere along the line of sight. ... They appear pink to the human eye (I combined out BVR imaging weighted such that a sun-like star would appear white)...

Astrophysics Space Missions . ... Space Physics Missions . Data Centers . ... Lectures in Space Science . ... Compton Gamma Ray Observatory (GRO) . ... University of Arizona , Theoretical Astrophysics Program Return to the top of this document . ... JHU/APL AMPTE/CCE Space Science Data Center . ... National Space Science Data Center (NSSDC) . ... Astrophysics Data Facility (ADF) at NASA/Goddard Space Flight Center . ... Center for Atmospheric and Space Sciences/Utah State University (CASS/USU) . ...