... 2009 September 14 . The Center of Globular Cluster Omega Centauri . ... Explanation: What is left over after stars collide? ... In the center of globular cluster Omega Centauri, stars are packed in 10,000 times more densely than near our Sun. Pictured above , the newly upgraded Hubble Space Telescope has resolved the very center of Omega Centauri into individual stars. ... Two such binaries have now been located in Omega Centauri 's center. ... About APOD | ...

... The Center of Globular Cluster Omega Centauri . ... Credit: NASA , ESA , and the Hubble SM4 ERO Team Explanation: What is left over after stars collide? ... In the center of globular cluster Omega Centauri, stars are packed in 10,000 times more densely than near our Sun. Pictured above , the newly upgraded Hubble Space Telescope has resolved the very center of Omega Centauri into individual stars. ... Publications with keywords: globular cluster - Omega Centauri . ... Globular Cluster NGC 2419 . ...

... 13th European VLBI Network Symposium . and Users Meeting . on September 20-23, 2016. ... 13th European VLBI Network Symposium and Users Meeting on September 20-23, 2016. ... Year book "Ephemerides of Minor Planets for 2016" on-line . ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... Click here to go directly to the Orion Nebula Images. ... Copies of individual figures from this paper are available from John Bally . ... Figure 1: The core of the Trapezium showing the four energetic massive stars and a plethora of Sun-like stars with surrounding extended emission. ... Click to download figure in jpeg format. Click to download figure in tiff format. ... Figure 3: A gallery of star-disk systems in Orion's Trapezium. ... To Doug Johnstone's Scientific Home Page . ...

... Australia Telescope Compact Array . ... Compact Stellar Systems in the Fornax Cluster: Super-massive Star Clusters or Extremely Compact Dwarf Galaxies? ... We suggest that these objects are either super-massive star clusters (intra-cluster globular clusters or tidally stripped nuclei of dwarf galaxies) or a new type of low-luminosity compact elliptical dwarf (``M32-type'') galaxy. ... Keywords: galaxies: star clusters -- galaxies: dwarf -- galaxies: formation . ... Properties of the compact objects ...

... Science . ... Science Users Information > Science Publications > Archive of the ESO Enews > ESO-Enews #14: September 2009 . ... Observing Facilities . ... Science Archive Facility . ... To obtain earlier raw data that is still covered by the proprietary period PIs may use the normal ESO Archive interface .. ... For more information about the above item, or to subscribe to the archive RSS feed to stay informed on the latest archive developments, please visit the Science Archive Facility . ...

... The Large Telescopes Program Committee of Russian AS . ... Executive Secretary, e-mail: request@sao.ru . Telescope RATAN-600 Time Request deadline: I half-year (Jan. ... Program title .. ... Principal investigator .. ... Request status .. ... Retarded applications and ones not conforming to form will not be accepted by the Committee. ... In some exceptional cases the Program Committee Secretary can accept a request after deadline with permission of the Chairman of Committee or director of SAO RAS. ...

Stellar Clusters are very useful laboratories for empirically studying stellar evolution. ... All cluster stars are at the same distance . All cluster stars have the same physical age . ... CM diagram Young Cluster In this case we see the Main Sequence fully represented. The blue dots represent massive stars with short main sequence lifetimes. ... Thus, identifying the most massive star which is still on the main sequence is an effective means of determining the age of a stellar cluster. ...

... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

Armagh Observatory . ... Armagh, BT61 9DG . ... The closing date for receipt of applications: 31/05/2008 . ... Applications are invited for a fixed-term postdoctoral research position for up to 3 years to be held at Armagh Observatory beginning October 2008 or as soon as possible thereafter. ... Further information about Armagh Observatory and the current massive stars research programme may be obtained by consulting the Observatory's web-site or via email to Jorick Vink (jsv arm.ac.uk). ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

... Pre-application form . Excel file with explanations how to fill; please, save the table in format not later Excel-1997-2003.) ... Rules and Regulations for a participant of the Olympiad that have to be translated into native languages of participants (if using Word, please, save the translation in format not later Word-1997-2003), attention for additions during last years ( blue and red text ): . ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

... Up: Web Services and Publications . ... This is being done natively in new Java-based applications while older applications are being wrapped to provide Web Service interfaces. ... Data access is via the network enabled NDF data access layer for the older, non-Java applications and via the new HDX layer (Giaretta et al. 2003) for the pure-Java application. ... Use of Web Services as a new messaging system will allow Starlink applications increased flexibility. ...

O ptimal transport : T heory and A pplications . ... This is a web site of the research project Optimal transport: Theory and applications to cosmological reconstruction and image processing (OTARIE) supported by the French National Research Agency ( Agence nationale de la recherche ) under contract ANR-07-BLAN-0235 . ... Optimal transport is a mathematical subject connecting the fields of optimization, partial differential equations, and dynamical systems in finite and infinite dimensions. ...

... Classifying or clustering (or semi supervised learning) spectra is a very challenging problem from collecting statistical-analysis-ready data to reducing the dimensionality without sacrificing complex information in each spectrum. ... Continue reading ?[ ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Category: Algorithms , arXiv , Astro , Bad AstroStat , Cross-Cultural , Data Processing , Frequentist , Jargon , Methods , Stat | ... ADS ...

Next: CCD Scientific Performance Up: CCD Operation Previous: CCD Operation . A visible light photon releases only one electron-hole pair, and consequently many photons must be collected in each pixel for a measurable signal to be produced. ... This use as an imaging X-ray spectrometer requires that no more than one photon is incident on each pixel in any image frame, which imposes a requirement that image collection times be limited to ~seconds for typical astronomical applications. ...