... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2004 May 19 . Brain Crater on Mars . Credit: Malin Space Science Systems , MOC , MGS , JPL , NASA . Explanation: What caused this unusual looking crater floor on Mars? ... The light colored region surrounding the brain-textured region is likely sand dunes sculpted by winds . ... About APOD | ... NASA Official: Jay Norris. ...

. 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.

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 . ...

... 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? ...

... The Regolith of Asteroid Eros . ... 29.08.2000 . ... Credit: NEAR Project , JHU APL , NASA . Explanation: From fifty kilometers above asteroid Eros, the surface inside one of its largest craters appears covered with an unusual substance: regolith . ... Much of the regolith on 433 Eros was probably created by numerous small impacts during its long history. ... 2007 2008 . ... Publications with keywords: 433 Eros - regolith - asteroid . Publications with words: 433 Eros - regolith - asteroid . ...

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. ...

... Data archive . Observing . Currently search mode observations can be carried out using the PDFB3 , PDFB4 , BPSR and the analogue filerbank. ... J1412+0224_R; P 14:12:00 +02:24:00; d4_cfg srch_256_512; d4_frq 1369.0; d4_tcyc 10; rcvr MULTI; tobs 60; mode srchset; sr4_nsblk 2048; sr4_btc 1.0; sr4_nbit 8; sr4_nprod 1; sr4_tsmp 1000 . ... The first column J1412+0224_R and J1412+0224 gives the name of the calibrator source and of the pulsar (or candidate position) . ... Group . ... Pulsar Groups . ...

... Users . ... Data Collection and Analysis . ... This particular part of the analysis has been disabled since the code is struggling to cope with the number of users seen this year, in particular the large contingent of people who have re-tweeted NASA. ... Order accounts: by user number (effectively random) by number of tweets (includes retweets) by number of followers by number of followers that also tweeted about AAS225 by number of friends that also tweeted about AAS225 . ... by user number . ...

... 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. ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... Tony Hallas . ... Observing Podcasts . ... Astronomy for Kids . ... Imaging Basics . ... Observing springtime deep-sky objects with a large telescope . ... Cosmic Adventures . ... Tony Hallas' Cosmic Imaging . Tony Hallasт?? Cosmic Imaging: Create a mosaic . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

. 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) .

... 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: . ...

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) . ...

... 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" ...

... Research . ... A rare hybrid morphology radio galaxy . ... In this project we will be able to investigate the environmental effect on star formation and galaxy evolution in individual galaxies falling into the cluster through radio observations of active galactic nuclei (AGN). Current models of galaxy evolution regulate the star formation rates within the simulated galaxies by invoking radio-mode feedback from AGN. ... Julie.Banfield@anu.edu.au . ...

... These include: South Africa (the SAAO and the South African National Research Foundation, under the auspices of the South African Department of Arts, Culture, Science and Technology); Poland (the Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences); the USA (the Hobby-Eberly Telescope Founding Institutions [the University of Texas at Austin and Pennsylvania State University ], Rutgers University the State University of ...

. Other Relevant Links . Number counts have been illustrated earlier in the talk. QSO Clustering and Large-Scale Structure , Scott Croom et al . QSO Evolution and the Luminosity Function , B.J. Boyle et al . | Front page | . | << - Contamination | QSO close pairs - >> | . Robert J. Smith, ">rsmith@mso.anu.edu.au Last modified: Fri Sep 24 11:39:02 EST 1999 .

... Research . ... There is mounting evidence that AGN feedback is important in galaxy evolution. Radio-mode feedback is thought to be particularly significant because the mechanical action of the expanding lobes provides a strong coupling mechanism between AGN energy and the surrounding environment. In order to quantify this feedback, detailed models of radio lobe evolution are required. ... Cambridge, UK - Nov 2013 . PDF . Poster for Modern Radio Universe conference . ...

. 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.

... start : uncertain_data . ... SAI VO Projects . ... Help on Wiki search . ... Show page Old revisions . These are the older revisons of the current document. To revert to an old revision, select it from below, click Edit this page and save it. 2011/08/26 15:09 uncertain_data karpov (current) . 2011/08/26 14:57 uncertain_data created karpov . uncertain_data.txt Last modified: 2011/08/26 15:09 by karpov Back to top . SAI VO | ... SAI MSU | ...