... NGC 1569: Heavy Elements from a Small Galaxy . ... Still, heavy elements can profoundly influence galaxy and star formation ... not to mention the formation of planets and people. In this tantalizing false-color x-ray image from the orbiting Chandra Observatory , small dwarf galaxy NGC 1569 is surrounded by x-ray emitting clouds of gas thousands of light-years across. ... Publications with keywords: dwarf galaxy - X-ray . Publications with words: dwarf galaxy - X-ray . ...

... 2001 October 26 . Elements in the Aftermath . ... CXC , NASA . ... And so a supernova explosion , a massive star's inevitable and spectacular demise, blasts back into space debris enriched in heavier elements to be incorporated into other stars and planets (and people! ... Just below and left of center, a point like object in the Chandra image suggests that the enriching supernova also produced a pulsar in its aftermath, a rotating neutron star remnant of the collapsed stellar core. ...

... Главная . ... Новости . ... Проекты . Любителям астрономии . Проект ISON . ... Подробнее . ... Категория: Новости проекта ISON . ... Метки: Космический мусор ,љ Астероиды ,љ Гамма-всплески ,љ Любителям астрономии ,љ Кометы љ . ... Метки: Космический мусор ,љ Астероиды ,љ Любителям астрономии љ . ... Новости обсерваторий проекта] - Обсерватория Кубанского государственного университета от Иванов А - 09.04.2016 11:08:49 . ... 1999-2013 Copyright "Астрономия и Телескопостроение" . ...

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... d) The Age of the Chemical Elements . ... Some isotopes (forms of the element with different numbers of neutrons in the nucleus) of these elements are radioactive; they change into other isotopes at a rate that can be measured accurately in the laboratory. ... 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 | ...

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... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is the heaviest element that astronomers can detect? ... The heaviest element that astronomers have found in space is the same as the heaviest element naturally occurring on Earth: uranium. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

... The ADDRESS element specifies such information as address, signature and authorship for the current document, and typically placed at the top or bottom of the document. ... CLASS . ... The CLASS attribute is most commonly used to attach a different style to some element, but it is recommended that where practical class names should be picked on the basis of the element's semantics, as this will permit other uses, such as restricting search through documents by matching on element class names. ...

... The distributions of orbits eccenttricities and of angular momenta for the halo stars and the old disk population are considered. The distributions have gaps separating the halo from the disk and dividing the halo population into three groups. ... Рассмотрены распределения звезд гало и старого населения диска по величине эксцентриситета орбит и угового момента. Распределения имеют провалы, отделяющие гало от диска и делящие населения гало на три группы. ...

Boris I. Rabinovich . Magnetohydrodynamical element in the problems of RC and SC stabilization . ... The use of the control system including the MGD elements for stabilization of the dynamically non stable objects as been considered. ... The possibilities of the control system with MHD elements are presented: RC non stable in the longitudinal direction (POGO) and the non stable rotating SC with the flexible spike antenna located along the rotation axis (like Auroral probe of INTERBALL project). ...

... Bruce MacA Thomas 11 February 1999 Introduction In this discussion document, the antenna principles underpinning some of the concepts discussed in Ref 1 for the LF-SKA are extended to illustrate the potential difficulty of achieving constant collecting area, and hence the practical realisation of the "magic-carpet" concept. Applications to the "randomised" antenna-element approach to array-station design, and the trade-offs that need to be considered, are briefly discussed. ...