Next: The Nuclear Region: HI Up: The Relation between the Previous: The Relation between the . In this lecture I will discuss some aspects of the relation between the large-scale gas dynamics, nuclear kinematics, and activity in spiral galaxies. ... The best tracer for the overall gas distribution and kinematics in galaxies is the 21-cm emission line of the neutral hydrogen atom (H I ). ... Note that both H I emission (solid lines) and absorption (dotted lines) cover about the same velocity range. ...

This site offers information about the International Astronomy Olympiad (IAO), one of the six First International Science Olympiads (like International Olympiads on Mathematics, Physics, Chemistry, Informatics and Biology). It contains the Organization Rules of the IAO which are officially accepted by all participating states and ratified by the leading body of the IAO - the Euro-Asian Astronomical Society. The Rules have to be strictly followed by all participants. ... Update 31-Aug-2004 . ...

... Posts tagged ?introduction? ... While creating my own arXiv as follows, I had a hope to write up short introductions of statistics that are unlikely known to most of astronomers (like my MADS) and matching subjects/targets in astronomy. ... Continue reading ?arxiv list? ... I?ve heard many times about the lack of documentation of this extensive data analysis system, ciao . ... Although ciao is not the only tool for Chandra data analysis, it was specifically designed for it. ... Chandra Blog . ...

... After 1958, when scientific satellites began exploring the Earth magnetic environment, many puzzling phenomena could be directly examined, especially the polar aurora and disturbances of the Earth's magnetic field [see Stern , 1989a]. ... The large-scale structure of the magnetosphere, the space region dominated by the Earth's magnetic field, was gradually revealed within the next decade: its trapped particles, its boundary, and its long magnetic tail on the night side. ... Introduction . ...

... After 1958, when scientific satellites began exploring the Earth magnetic environment, many puzzling phenomena could be directly examined, especially the polar aurora and disturbances of the Earth's magnetic field [see Stern , 1989a]. ... The large-scale structure of the magnetosphere, the space region dominated by the Earth's magnetic field, was gradually revealed within the next decade: its trapped particles, its boundary, and its long magnetic tail on the night side. ... Introduction . ...

... Ireland and the Moon Landings - Some Personal Reminiscences - Thursday 14 May 2009, Dublin City Library . ... Fascinating Astronomy Images on Display in The Market Place, Armagh . Introduction to Amateur Astronomy in Ireland - a lecture given by Deirdre Kelleghan on May 12th 2009 at Ballymun Library at 6:30 pm . Ballymun Library, Main St., Ballymun, Dublin 1 . ... International Year of Astronomy, Ireland National Node . ...

. Next: About CHAMELEON Up: CHAMELEON Previous: CHAMELEON Contents . Subsections . About CHAMELEON . Data and auxilliary files . Pipeline . Introduction and command syntax . Output files . Flag tables . Bias correction . Phase unwrapping . Logging and quality control . Christian Hummel 2015-04-28

Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...

... title=' Золотое кольцо 01K613066Z - Ювелирное изделие - Ювелирное изделие' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> Кольцо. ... The aim of this book is to add certain new topics to the material of the famous textbook "Statistical physics" by L.D.Landau and E.M.Lifshitz. ... Артикул: PICT53_RED RED Цвет: красный Состав: 100% шелк Параметры изделия: длина 158 см, ширина 9 см Страна дизайна: Италия Страна производства: Италия . ...

Next: Historical Notes Up: The Chirplet Transform: Previous: The Chirplet Transform: . ... One of these TF methods, the short-time Fourier transform (STFT), has been used extensively for analyzing speech, music, and other non-stationary signals. ... Another time-frequency representation (which might more appropriately be called a time-scale representation) is the well-known wavelet transformheil-walnut,mallat:theory,daubechies:transform,strangwavelets. ... Historical Notes . ...

Experiment COLD . ... JSEC Astronomy . ... The entire project was called "Experiment Cold". ... The best radiometer (in terms of fluctuation sensitivity) known to us, based on a parametric amplifier with a closed-cycle helium cooling system, was used in the experiment; measures were taken to "cool" the radio telescope itself; and a method of controlling the numerous sources of interference was carefully thought out. ...

... Asteroid Introduction (This Page) . ... Asteroid Summary . Asteroids . Gaspra , Ida & Dactyl , Toutatis , Castalia , Vesta , Geographos, Mathilde . ... NEAR Spacecraft Homepage . Near-Earth Asteroid 3753 - Earth's Curious Companion . ... Then on October 1991 asteroid 951 Gaspra was visited by the Galileo spacecraft and became the first asteroid to have hi-resolution images taken of it. ... Both Gaspra and Ida are classified as S-type asteroids composed of metal-rich silicates. ... Gaspra . ...

Next: The Plan Up: No Title Previous: No Title . On the afternoon of 19 October 1999, it was discovered by John Briggs that the secondary mirror in the 2.5m SDSS telescope had developed a series of circular cracks around its axis of symmetry. As the telescope had not been in use since the early morning of 16 October 1999, there was a great deal of concern and consternation as to what caused these fractures in the glass. ... 11/24/1999 ...

Next: Model of clusters Up: paper2 Previous: paper2 . ... It allows estimating different microphysical properties of scatterers (size, complex refractive index, shape, etc.) from measured characteristics of the scattered radiation. ... The complexity of the direct problem depends on its input parameters characterizing the shape, size and structure of the scattering particle. ... Next: Model of clusters Up: paper2 Previous: paper2 root 2003-04-11 ...

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An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... INTRODUCTION . ... Based on their personal beliefs, they find fault not only with biological evolution, but also with modern astronomical ideas about the age, expansion, and evolution of the universe. ... An Ancient Universe - Table of Contents . ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

Next: RadioAstron Mission Element Overview . ... The aim of this document is to describe the interfaces among the various elements of the RadioAstron Mission. For each item exchanged by mission elements, this handbook details: . ... the how (the format and naming convention), . ... File formats, naming, and structure of FTP sites for operation elements used in VSOP are conserved, but new features, related to satellite control and orbit determination are introduced into the document. ...

... In the USA it was called space Shuttle system. ... NPO MOLNIYA was founded on the basis of two design bureaus: BUREVESTNIK (Chief Designer A. V. Potopalov) that had experience in the creation of heavy supersonic aircraft and anti-aircraft missiles and MOLNIYA (Chief Designer M. R. Bisnovat) which developed unmanned flight vehicles and an Experimental Machine-Building Plant (General Designer V. M. Myasischev) where heavy and high altitude aircraft were designed and tested. ... Buran Orbiter . ...

. The Guest FTP Service at the University of London Computer Centre provides a gateway service between InterNet file transfer protocol (FTP), and the file transfer mechanism used over JANET (Blue Book NIFTP). Suppose you can only transfer files between your local host and other remote hosts on JANET using the hhcp command. This service enables you to transfer files to and from hosts on the InterNet through its gateway.

... Bad Astronomy . ... Bitesize Astronomy . ... Site Info . ... RELATED SITES . ... Site Introduction . ... In the space of one hundred and seventy-six years the Lower Mississippi has shortened itself two hundred and forty-two miles. Therefore ... in the Old Oolitic Silurian Period the Lower Mississippi River was upward of one million three hundred thousand miles long... seven hundred and forty-two years from now the Lower Mississippi will be only a mile and three-quarters long.. ... 2008 Phil Plait. ...