. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

... 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. ...

... As is known, the observed distribution of massive stars in the direction of the Galactic center looks very peculiar: the vast majority of all massive stars are concentrated towards the central 1 pc or so (Genzel et al. ... In order to compare the observed distribution of X-ray sources in the Galactic center with what would be expected from the population synthesis computations, we have considered two hypothetical scenarios for the location of the starburst. ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

... CXO , NASA Explanation: Why would the center of our Galaxy flicker? Many astronomers believe the only credible answer involves a black hole . ... This short flicker therefore provides additional evidence that a black hole does indeed reside at our Galaxy's center . ... Publications with keywords: black hole - Galactic Center - Sgr A . Publications with words: black hole - Galactic Center - Sgr A . ... A Laser Strike at the Galactic Center . ... Sgr A*: Fast Stars Near the Galactic Center . ...

Broadband SED of Ser X-1 constructed with simultaneous data and upper limits from ISGRI (filled diamonds), PICsIT (filled pentagon), JEM-X (filled squares) and ASM data (open square) plus non-simultaneous optical measurements (filled dots), NIR and far-infrared upper limits (open circles and open triangles, respectively) and radio data (filled triangles). Error bars of data points are not reported as their size is comparable to, or smaller than, that of the symbols used in the figure. ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The on-line prediction procedure is based on the Newton interpolation formulae for a uniform distribution of the variable with first, second and third argument powers restrictions (Kurkin V.I. , Polekh N.M., Tchistyakova L.V. MAF operative prognosis for oblique ionosphere sounding// Issledovaniya po geomagnrtismu, aeronomii i phisike Solntsa. ... Prediction MUF calculation for the next 15 minutes; . ...

Variations of total ozone content and lower ozone stratosphere temperature in Antarctic Region during winter-spring period A.V. Grytsai National Taras Shevchenko University of Kyiv Astronomy and Space Physics Department assen@univ.kiev.ua Data, used in the work work Total ozone: Total Ozone Mapping Spectrometer (TOMS) measurements during 1979 - 2005 and Ozone Monitoring Instrument (OMI) ones for 2006, for http://toms.gsfc.nasa.gov/ftpdata.html. ... A long-term TOC decrease is significant. ...

... 2001 September 10 . Galactic Center Flicker Indicates Black Hole . ... CXO , NASA . Explanation: Why would the center of our Galaxy flicker? Many astronomers believe the only credible answer involves a black hole . ... Only one known type of object can fit so much mass in so small a volume: a black hole . This short flicker therefore provides additional evidence that a black hole does indeed reside at our Galaxy's center . ... About APOD | ... NASA Technical Rep.: ...

One possible way for spiral galaxies to internally evolve would be for gas to flow to the center and form stars in a central disk (pseudo-bulge). ... In this paper we present radial profiles of stellar and 8 ЮМm emission from polycyclic aromatic hydrocarbons (PAHs) for 11 spiral galaxies to investigate whether the interstellar medium in these galaxies contains a central concentration above that expected from the exponential disk. ...

. Next: Related Programs Up: INSTALLING, AND RUNNING SCHED Previous: Running SCHED on a Contents . Once SCHED has been used to make schedules for an observation, those files need to be sent to the stations, usually by way of a distribution center at NRAO or in Europe. When time for a project is allocated, instructions for how to accomplish this will be provided. Craig Walker 2014-04-14

... For a semple of red giants comprising about 2000 stars, the distributions of metallicity [Fe/H] are given. ... The center of the distributions of giants in both galactic poles is found to demonstate a statisticaly significant gap similar to the one found earlier for the late main-sequence stars. The implications of the metallicity distribution properties for the problems of the chemical evolution of the galactic disk are discussed. ...

... This paper presents an overview of the CENTERFIT image centering algorithm library currently under development in the IRAF system. ... The centering algorithms employed by these applications must satisfy a wide range of efficiency and accuracy requirements, and function robustly on data sets spanning a broad wavelength, resolution, and signal-to-noise regime. This paper presents an overview of CENTERFIT, a library of 1-D and 2-D centering algorithms currently under development in the IRAF system. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. November 11, 1997 . The Annotated Galactic Center . ... Constellations of nearby stars include Sagittarius , Libra , Scorpius , Scutum , and Ophiuchus . ... Open clusters include M6 , M7 , M18 , M21 , M23 , M24 , M25 . Globular clusters include M9 , M22 , M28 , M54 , M69 , M70 . ... About APOD > . ... NASA Technical Rep.: ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

. SXG Data Center . SDC overview . Spectrum-XG . SXG instruments models . Data archive . General astronomical utilities . Proposal Preparation . ABOUT SXG-SDC . The SXG-SDC is the interface between the Spectrum-X-Gamma satellite and astronomical community. Data from the SXG instruments will be analysed, archived and distributed by the SXG-SDC at the Space Research Institute, Moscow (IKI). Last updated: Feb, 2001 by WebMaster

... ESO, the European Southern Observatory . ... This annotated artistтАЩs impression shows the Milky Way galaxy. The blue halo of material surrounding the galaxy indicates the expected distribution of the mysterious dark matter. New measurements based on the movements of stars show that the amount of dark matter in this region around the Sun is far smaller than predicted and have indicated that there is no significant dark matter at all in our neighbourhood. ... Dark Matter , Milky Way . ...