... The plotter allows various annotations (lines, arrows, text and ``spans'') to be added to the plot. ... The values are in world coordinates. ... axhline(y, xmin, xmax) . ... avhline(x, ymin, ymax) . ... xmin, xmax) . Overlay a transparent colour rectangle. ymin and ymax are given in world coordinates while xmin and xmax are given in relative coordinates . ... Overlay a transparent colour rectangle. ymin and ymax are given in relative coordinates while xmin and xmax are given in world coordinates . ...

... Generalized maximum entropy method and its application to antenna pattern reconstruction. In this paper the Generalized maximum entropy method and its application to the reconstruction of two-dimensional complex functions (namely, far-field antenna pattern distribution) from nonuniformly distributed samples are considered. ... It is shown that the Generalized maximum entropy method is sufficiently stable in the presence of errors. ...

... The radio to X-ray continuum shape of quasars (gif), (Elvis et al., ... Plotted in log nufnu vs log nu (nu=frequency) space. ... Radio-loud, Radio-quiet: quasars that look virtually identical at all other wavelengths can differ by a 1000 in their radio emission. Radio-loud quasars have a powerful jet moving at relativistic speeds (i.e. close to the speed of light) made up of energetic particles, themselves moving near the speed of light in a magnetic field. ...

Astronomy Picture of the Day . ... 29.12.2001 . ... December 2001 . ... 2001 2002 . ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ... A service of: LHEA at NASA / GSFC . ... U. Based on Astronomy Picture Of the Day . Publications with keywords: star cluster - nebula - Galactic Center . Publications with words: star cluster - nebula - Galactic Center . ... A Laser Strike at the Galactic Center . ... Young Star Cluster Westerlund 2 . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 30, 1998 . An Annotated Leonid . ... Explanation: The 1998 Leonids Meteor Shower was perhaps the most photographed meteor event in history. Patient observers saw bright meteors streak across dark skies every few minutes, frequently leaving fading trails stretching across the sky. ... About APOD > . ... NASA Technical Rep.: ...

Main Page Data Structures File List Data Fields Globals . Here are the data structures with brief descriptions: . element . Array element . oi_array . Data for OI_ARRAY FITS table . oi_t3 . Data for OI_T3 FITS table . oi_t3_record . Triple product record . oi_target . Data for OI_TARGET FITS table . ... Data for OI_VIS FITS table . ... Data for OI_VIS2 FITS table . oi_vis2_record . Visibility squared record . ... Data for OI_WAVELENGTH FITS table . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 11, 1997 . The Annotated Galactic Center . ... Constellations of nearby stars include Sagittarius , Libra , Scorpius , Scutum , and Ophiuchus . ... Open clusters include M6 , M7 , M18 , M21 , M23 , M24 , M25 . Globular clusters include M9 , M22 , M28 , M54 , M69 , M70 . ... About APOD > . ... NASA Technical Rep.: ...

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... Here we will look at line plots. We will go through steps, such as changing linestyles and symbols, you can use to modify your line plots. ... IDL> plot, num, line . ... IDL> plot, num, line, psym = 1 . ... IDL> plot, num, line, linestyle = 1 . ... Line Style . ... IDL> plot, num, line, linestyle=2, thick=3 . ... IDL> plot, num, line, psym = 8, symsize = 2.0 . ... IDL> plot, num, line, charsize=2.0, title='GHRS spectrum . ... IDL> plot, num, line, charsize=2.0, xcharsize=0.8, xtitle='wavelength' . ...

... This API (Application Programming Interface) document has pages corresponding to the items in the navigation bar, described as follows. The Overview page is the front page of this API document and provides a list of all packages with a summary for each. ... Each package has a page that contains a list of its classes and interfaces, with a summary for each. ... Each of these pages has three sections consisting of a class/interface description, summary tables, and detailed member descriptions: . ...

. "Old180 o " TV-camera (at Zeiss-1000 ) 768x576 image. Click on Image to Show/Hide annotation and BSC catalogue stars. Here TV-camera's FITS -image and Description and Archive . Click here for BTA-Sky140 o simulation only. or switch to LiveTV mode using: . direct image streaming (for Mozilla / Firefox / Google Chrome etc) . the only image stream (for Konqueror Opera etc) . Axis ActiveX module (for Microsoft Internet Explorer) . Cambozola Java Applet (for any browser with Java)

Chair of solid state physics . ... The Physics of Phonons . ... In the first part of the course “The Physics of Phonons” the dynamics of atoms in one- and three- dimensional crystalline lattices is considered in detail. The quasiparticle conception in solids, taking phonons as an example, is discussed; creation and annihilation operators of phonons, main properties of acoustic and optical phonons dispersion laws, density of phonon states. ... Crystalline state. ... Acoustic and optical phonons. ...

... Model of ejection of matter from dense stellar cluster and chaotic motion of gravitating shells . The motion with intersections of relativistic gravitating shells in the Schwarzschild gravitational field of a central body is considered. ... Such special casesas the Newtonian approximation, intersections of light shells, and intersections of a test shell with a gravitating shell are also considered.The ejection of one of the shells to infinity in the relativistic region is described. ...

The oral histories on this Website are the transcripts from audio-recorded, personal interviews with many who pioneered outer space and the Moon, and with those who continue the excitement of space exploration. ... The date of each interview is noted on the first page. If available, the Biographical Data Sheet provided background information for the Oral Historian to prepare for the interview. ... To continue, choose a link below: . Harold G. Miller . ... Return to JSC Oral History Website . ...

... Future seminars . ... Special Relativistic Simulations of Magneto-driven Jet from Core-Collapse Supernovae " . ... We performed 2.5 dimensional magneto-hydro dynamical simulation of core-collapse supernovae. ... How this collimated jet is produced due to the process of core-collapse of massive star?There are two main energy-sources for the explosion. ... Since the previous works are performed separately at each stage such as core-collapse and jet-propagation, many uncertainty remains in each stage. ...

Fred Ewalt image: . I revisted my series of 5 raw images on SN1999gp. The attached UGC 1993 field image is the summation of five co-aligned and added one minute raw exposures (vice averaged, which was used for the processed image I submitted yesterday). ... The probable Foreground Star, SN1999gp and the Nucleus of UGC 1993 are all apparent in this field image. The second "Inset - A image", I blew up and normalized to the same pixel count as the field image. ... Back to 1999gp . ...

Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...

Next: Command Syntax Summary Up: Multivariate Analysis Methods Previous: Related Table Commands . A. Heck, F. Murtagh, D. Ponz, ``The increasing importance of statistical methods in astronomy'', The Messenger , No. ... It is described in F. Murtagh and A. Heck, ``An annotated bibliographical catalogue of multivariate statistical methods and of their astronomical applications'', Astronomy and Astrophysics Supplement Series 68 113--115, 1987. ...

. XMM-Newton Science Analysis System . rgsspecplot (rgsspecplot-2.18.4) [xmmsas_20080701_1801-8.0.0] . Meta Index . Produces annotated display of RGS spectra . Instruments/Modes . Use . Description . Examples . Parameters . Errors . Input Files . Output Files . Algorithm . Comments . Future developments . Bibliography . Index . XMM-Newton SOC/SSC -- 2008-07-02

... The Exploration of the Earth's Magnetosphere" files are available as a TARed and GZIPed file via anonymous FTP . This is the home page of an overview of space research on the Earth's environment in space. ... A basic chronology of key dates in the exploration of the magnetosphere. ... The Magnetosphere . ... Magnetic Fields . ... 3a. Auroral Map of Loomis . ... Trapped Radiation . ... The Radiation Belts . 12H. History: 1958--Inner radiation belt is explained. 12a. Inner Radiation Belt . ...