Topics covered by the IAU Symp. ... Do all galaxies have stellar halos? ... Stellar tracers of the MW halo and nearby galaxies; the stellar population of star clusters and their contribution to the galaxy halos . ... NEW: Scientific program of the IAU Symposium 317 can be downloaded here . ... GLOBAL PROPERTIES OF STELLAR HALOS FROM THE MILKY WAY TO EXTERNAL GALAXIES . ... DISCRETE CONSTITUENTS OF STELLAR HALOS IN THE MILKY WAY AND IN EXTERNAL GALAXIES : PLANETARY NEBULAE and GLOBULAR CLUSTERS . ...

... The continuum of the Orion Nebula's template contains the nebular contribution plus a combination of Kurucz model atmospheres to simulate the stellar contribution. The fluxes of the UV, optical and near-IR emission lines from different sources are also incorporated into the template (J.R. Walsh, private comm.) The continuum of the planetary nebula has a nebular component and a hot stellar component simulated by an 80000K black body. ...

Data in GIPSY is stored in so called sets . A set consists of two components: an image component and a descriptor component. These components are stored in separate files, but in GIPSY they are always used together. The image data is stored in a `crystalline' structure with a virtually unlimited (up to 20) number of dimensions. ... Within a set subsets can be defined. ... The figure below shows the possible subset types in a three-dimensional set, a `` cube '': . ...

Next: XMM_MISCDATA Up: CCF Components Previous: Appendix: List of valid Contents . While some relevant RGS calibration data are given in the general-purpose CCF components . ... Some information concerning the maintenance of RGS CCF files is given below, though more details are available in the release notes that accompany new file releases and other technical notes. ... Use of CCF components by RGS SAS tasks . ... Purpose . Functionality . Ground calibration . Maintenance procedures . ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Brief History of Rocket and Space Technology . ... Flights Chronology . ... ISS Russian Segment . ... History of flights . ... History of Manned Flights | ... The MIR Station has become a peculiar flight site for real-time validation of many technical solutions and production processes used on the International Space Station. ... Contribution of RSC Energia to the Russian Rocket-Space Technology ....

... Professor Esko Valtaoja (Turku University, Director of Tuorla Observatory): "The problem of high-energy emission from AGN" . ... Associate Professor Harry Lehto (Tuorla): "Radio observations of GRS1915+105" . ... Dr. Alexander Riehokainen (Tuorla, Academy Researcher): "Multiwavelength observations of the Sun over a full activity cycle" . ... Ilona Torniainen (Metsahovi, PhD student): "Inverted-spectrum radio sources" . ... A Study of solar polar zone using eclipse data with RATAN-600 . ...

... We propose that the bimodal nature of the kick velocity distribu­ tion of radio pulsars is connected to the dichotomy between hadronic stars (i.e. neutron stars with no quark matter content) and quark stars. ... Here we propose a scenario in which the low­velocity part of the distribution is connected with normal (hadronic) compact stars, and high­velocity part is formed by objects with some amount of quark matter inside (hybrid or strange stars). ...

... This talk focuses on exploring the connection between Ly absorbers and galaxies. The theorist view of gas in the low z universe is based on the filamentary structures that are evident in simulations based on the CDM paradigm. ... The observer's view of gas in the low-z universe is based on the Ly absorbers which have column densities as low as 10 cm , while galaxies are at column densities of 10 cm . ... The absorber has N cm . ... Can examine LSS defined by gas-rich galaxies around absorbers. ...

Main research interests: . 1) Structure and geometry of the circumnuclear medium of AGN, particularly through hard X-ray observations of obscured sources. ... 3) Physics of Ultraluminous Infrared Galaxies (ULIRGs): analysis of the AGN and starburst components through hard X-ray and infrared (with ground-based 3-5 micron spectroscopy, and with Spitzer in the 5-30 micron band) imaging and spectroscopy. ...

... There are result from two global VLBI observations at 3.6 cm spaced about 2 years. ... The analysis of the apparent motion, indication of the jet flow trajectory and the other implications for the CSS quasars are discussed. ... The quasar 3C380 ( ; thus 1 arcsec corresponds to 4 kpc for , ) is one of the most powerful radio sources (its radio luminosity at 2.7 GHz is ) ( Wilkinson et al. ... 3C380 is a member of the class of Compact Steep Spectrum (CSS) sources. ...

... The Impact of HST on European Astronomy . ... These range from the study of nearby planets, the processes of star and planet formation, the stellar and interstellar components of galaxies, the discovery that most, if not all, galactic nuclei harbor a massive black hole that profoundly affects their evolution, to the realisation that the universe as a whole is undergoing acceleration as a result of a yet unknown form of dark energy . ... Formation, structure and evolution of galaxies . ...

I'm glad you're interested in collaborating on the ConcepTests for Astronomy WWW database project! ... I'm looking forward to your contributions! ... a) high luminosity, high temperature to low luminosity, low temperature . b) high luminosity, low temperature to low luminosity, low temperature . c) high luminosity, low temperature to low luminosity, high temperature . d) high luminosity, high temperature to low luminosity high temperature. ... Back to Paul Green's Peer Instruction page. ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Sample fits to the SB2 observations of HD 22128 (top two frames) and HD 56495 (bottom two frames). Fits (smooth lines) to the observations (points) show the combined synthetic spectra, as well as the two component synthetic spectra. ... HD 22128 and HD 56495 are both double-lined spectroscopic binary systems with short orbital periods, which have been proposed to host magnetic Ap stars. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

Visual Discovery of SN 1995al in NGC 3021. ... Although the first quater moon hadn't yet set we began our search in Pegasus, Aries and selected galaxies in Pisces. ... NGC 3021 is part of our usual observing program. ... The star was not seen on our chart. We use Thompson's charts (but they cover only 1/3 of the galaxies in our program, and NGC 3021 is not included) and charts we have drawn from Palomar Sky Survey plates. ... Piero Mazza and Stefano Pesci (e-mail: peste@micronet.it) . ...

This home page belongs to small group of scientists working at . Sternberg Astronomical Institute which is a part of Moscow State University . ... Электронная библиотека научно-технической и художественной литературы (доступна только из ГАИШ) . ... Local staff . Dr. Edward Kononovich (konon -at- sai.msu.ru), Associate Professor . ... Dr. Sergey Ayukov (asv -at- sai.msu.ru), Research Fellow, Webmaster of the group . ... Joint seminar of Solar Studies Structure Group and Solar Photometry Group . ...

Astronomy Picture of the Day . ... 5.02.1996 . ... Credit Copyright: NASA , COBE , DMR , Four Year Sky Map Explanation: Above are two microwave images of the sky, looking north and south of our galaxy 's equator, based on data from NASA's COBE satellite. ... These spots are the oldest structures known - probably the oldest structures humanity will ever know. ... February 1996 . ... 1995 1996 . ... Publications with keywords: COBE - hotspots . ... Microwave Hotspots: The Oldest Structures Known ...

One of the prominent scientists of the 20th century Gamow was born in Odessa on March 4, 1904 in the family of a secondary school teacher. ... In 1994, in the year of his 90-th anniversary, an International Conference "Astrophysics and cosmology after Gamow" was held in Odessa and St.Petersburg. The idea of this conference is supported by the UNESCO representation in Russia and by the International Renaissance Foundation (Odessa branch) (affiliation of the Soros Foundation). ...

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