The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... That produces an extra resistance to the flow of current. ...

. To create a file with the cat command: cat > memo remember to make appointment at opticians get cost of scheduled flight to Athens Ctrl-d . This creates a file called memo in the current directory containing two lines of text. To create a file with the echo command: echo use an editor for large files > tips . This creates a file called tips in the current directory containing a single line of text.

... Every morning, the LRPG determines if the previous night's batch-LRP was successful and examines any differences between the last released LRP and the current LRP. ... Was the nightly LRP run successful? ... check that an "AUTO" LRP was created for the most recently run nightly batch-LRP process. ... Daily working LRP names are alphabetically sequenced (A, B, C, ... under normal circumstances, often only A will get created and later released). ... For each run, two files are generally created. ...

... 16.06.2002 . ... Galileo Project , JPL , NASA Explanation: Why does Jupiter have rings? ... Data from the Galileo spacecraft currently orbiting Jupiter later confirmed that these rings were created by meteoroid impacts on small nearby moons . ... Small dust particles high in Jupiter's atmosphere , as well as the dust particles that compose the rings , can be seen by reflected sunlight . ... Publications with keywords: Jupiter - rings - dust . Publications with words: Jupiter - rings - dust . ...

Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Предыдущий выпуск (N335) . ... Обсудить на форуме Scientific.RU . ... Подписка на рассылку обзоров на Subscribe.Ru . Обзоры препринтов astro-ph . ... Собственно обзоры препринтов. ... Ранее обзоры также были на Астронете и на Scientific.Ru . ... АНКи доступны на Астронете , а с 2006 по 2008 г. также на сайте Элементы.Ру . ... Ранее они также размещались на сайте Астронет и в архиве моих обозрений (кодировка KOI8) на сайте Scientific.Ru . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 19, 1999 . Earth's North Magnetic Pole . ... Explanation: A magnetic compass does not point toward the true North Pole of the Earth. ... Evidence indicates that the North Magnetic Pole has wandered over much of the Earth's surface in the 4.5 billion years since the Earth formed. ... About APOD > . ...

... Aurora from Space . ... Magnetic Storms . ... The "ring of fire" seen by satellite cameras around the polar caps (picture below) is probably created by electrons leaking from the tail's plasma sheet, whose magnetic field lines form a somewhat imperfect trap. ... One possible explanation involves the close association between auroral arcs and electric currents which flow along field lines between the ionosphere and distant space ( Birkeland currents ). ... Why no aurora at the magnetic poles? ...

... R. E. Jackson . ... H.-M. Adorf . ... D. C. Wells . ... AstroWeb is a World Wide Web (WWW) interface to a collection of Internet accessible resources aimed at the astronomical community. ... The goal of AstroWeb is to be the most complete, up to date, and useful listing of Internet accessible astronomical resources available anywhere. ... Jackson, Wells, and Adorf noticed that they and others had created largely overlapping lists of Astronomical resources. ...

The left mouse button controls the creation and manipulation of region markers or cursors. ... Text When a marker type of selected, new markers of that type can be created using the left mouse button. The current default marker type is displayed below the menu. ... Set Default Marker Name (and Color) . ... Reset the fix parameter state of currently existing markers to match the global state set by the -fix command switch or by the Edit Global Fix Params For New Markers option in the Markers menu. ...

Function: GETUSERNAM Purpose: Returns the user name of the current user. Category: UTILITY File: getusernam.c Author: M. Vogelaar Use: CALL GETUSERNAM( USERNAM ) Output CHARACTER*(*) USERNAM Name of user currently logged in. Warning: System dependent! Currently implemented for UNIX systems. Updates: Oct 9, 1992: VOG Document created.

Next: Modes of Operation Up: CCD Scientific Performance Previous: Field of View . Thermal excitation of charge carriers from the valence to the conduction band creates a dark current signal which may vary with position in the array, and also has temporal shot noise variation. ... In a device devoid of localized defects which give rise to individual dark current spikes , most dark current arises from electrons generated at interface states at the surface. ...

. Project Identification: . Source Name: . Observation Date: . (yyyy/mm/dd) . Start Date: . End Date: . Source Position: . RA (J2000): . h m s . Dec (J2000): . o ' '' . Search box in arcminutes: . +/- (Default 10 arcminutes meaningful . only when both ra dec are specified) .

... Does the time it takes different methods to create all the elements coincide with the universeт??s accepted age? ... Illinois Urbana-Champaign) Different kinds of stars create elements at different rates, all of which are consistent with the age of the universe. Get instant access to subscriber content on Astronomy.com! ... Registration is FREE and takes only a few seconds to complete. If you are already registered on Astronomy.com, please log in below. ...

... This page deals with the operational issue of how to fill the calibration memory properly, and with the interplay of createAB and that memory. The calibration memory is the list of all calibration product files currently available for association. ... The dynamic calibrations are created by the pipeline from raw files and are stored in $DFO_CAL_DIR/<date>. ... DFO_CAL_DIR/VCAL is the pool of virtual calibrations. ... The calibration memory is managed by DFOS in the following way: . ...

... JavaScript 1.1: added current, next, and previous properties. ... To change a window's current URL without generating a history entry, you can use the Location.replace method. ... For example, if the history list contains three named entries, these entries are reflected as history[0] , history[1] , and history[2] . ... back . ... onClick="history.go('home.netscape.com')"> The following button navigates to the URL that is three entries backward in the history list: <P><INPUT TYPE="button" VALUE="Go" ...

Light scattering codes: . SVM for homogeneous spheroids (updating) . SVM for core-mantle spheroids (updating) . SVM for multi-layered spheroids (formulae) . Quasi-TMM for axisymmetric homogeneous particles (ready) . Quasi-TMM for axisymmetric multi-layered particles (testing) . Quasi-static approximation for multi-layered ellipsoids (testing) . S-approximation for homogeneous spheres (testing) . ... Basic Monte-Carlo code of S.Wolf for 3D case (testing) . ...

... Educational programs (English) . ... SSAU History . ... On June 11 Heinz Palkovski, Director of Institute of Metallurgy from Germany conducted a lecture on Preparation, testing and use of sandwich materials . ... The very same material is a sandwich, where the base and the filler arranged in layers of a certain thickness. ... Professor Heinz Palkovski is currently engaged in research of sandwich materials and his lecture was devoted to this theme. ... Tags: heinz palkovski lecture sandwich materials...

... A data set contains a science frame, all its associated raw calibration frames and the master calibration frames created by combining and processing the raw calibration frames. ... Either one creates a MIDAS catalogue which contains the names of all single calibration frames to be combined in to the master frame, or, in the case of pipe line reduction, one use the Association Table. ... The names of single calibration frames are however also available in the Association Table. ...

. Photos . This is an old homepage of Sergey Koposov with some old photos. My current homepage is here . The first version of that page was created approximately in november 2002. Sergey Koposov , 2002-2015 . Last change: 30.12.15.

Since XmCCD uses Motif, the libraries and include files must be available. ... By default it will create a directory xmccd-#.# with the command tar -xvzf xmccd-#.#.tar Set your current working directory to xmccd-#.# cd xmccd-#.# ... For "ls -l" you should see something like this -rwsr-xr-x 1 root root 281883 Mar 10 01:08 xmccd Move xmccd to a directory in your search path such as /usr/local/bin mv xmccd /usr/local/bin xmccd will use ds9 for image display if it is present. ...