Archive | Index | ... Driving to the Sun . ... The Iron Sun . Painting with Solar Neutrons . The Sun Also Rises . The Sun Flares . The Sun Spews X-rays . The Sun Today . ... This index contains previous Astronomy Pictures of the Day (TM) sorted by subject and is updated monthly. Therefore, only APODs occurring before the beginning of this month are currently indexed. The chronological archive is completely current. ... NASA Technical Rep.: ... Specific rights apply. ...

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 . ...

... First briefly outline two important models for pulsar electrodynamics: Vacuum and Magnetospheric models. Two models, two electric fields: inductive and potential. Screening of the induced E and produced co-rotation E by the screening current density. ... These are not the screening current density we needed. ... Force-free condition: Co-rotation E: GJ charge density: Two Electric Fields EI from the Vacuum model is inductive in nature, E from the magnetospheric model is potential and inductive. ...

... 28.08.2003 . ... Mars , noticeably red, remains the brightest object in the eastern sky just after sunset. ... Pictured above , Mars was photographed rising in the southeast behind Elephant Rock in the Valley of Fire State Park , Nevada , USA . ... August 2003 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: Mars . Publications with words: Mars . ... Victoria Crater on Mars . ... Inside Victoria Crater on Mars . A Path Into Victoria Crater on Mars . ...

... Next: An IRAF-Independent Interface Up: Software Systems Previous: A New PROS . ... We present a high-level representation of the packages and tasks within IRAF/PROS. ... We have produced a high-level overview of PROS. ... The incremental stages were the short-term goals: a project overview diagram (i.e., an organizational diagram of software modules); high-level diagram (i.e., a bubble diagram of each module in the system); and unifying element tables (i.e., tables of task vs. software attributes)....

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... Nearly every working astronomer now uses the NASA Astrophysics Data System Abstract Service regularly to access the modern technical literature. The ADS has begun a long term project to put the most important historical literature of astronomy on-line. ... Figure 2 shows the number of reads per paper via ADS as a function of publication year. ... Corbin, B. G. & Coletti, D. J. 1995, Digitization of Historical Astronomical Literature, Vistas in Astronomy, 39, 161 . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Submit a letter to the editor . ... Astronomy Letters . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Files in red?history) . ... Auroral Currents . 25H. Birkeland Currents . ... As noted earlier Kristian Birkeland, reporting in 1903 on his expeditions to the auroral zone, proposed that magnetic disturbances accompanying the aurora were caused by large electric currents flowing down the length of auroral formations. ... In later years these currents became known as the auroral electrojets , and considerable debate ranged over their cause and the way their circuit might be completed. ...

... Files in red?history) . ... Auroral Currents . 25H. Birkeland Currents . ... As noted earlier Kristian Birkeland, reporting in 1903 on his expeditions to the auroral zone, proposed that magnetic disturbances accompanying the aurora were caused by large electric currents flowing down the length of auroral formations. ... In later years these currents became known as the auroral electrojets , and considerable debate ranged over their cause and the way their circuit might be completed. ...