The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... Staff . ... Galaxies, AGN, Cosmology . ... A new survey of X-ray clusters of galaxies with the Swift-X-ray Telescope . ... In this framework, an international collaboration between INAF-OAA, INAF-Brera, INAF-OATs, the University for Science and Technology of China-Hefei, the University of Ferrara, and the University of Massachusetts-Amherst, is undertaking a new cluster survey using an X-ray facility that was never exploited before for this goal: the X-ray Telescope (XRT) onboard the Swift satellite...

Select appropriate Chandra Fields . Multi-method X-ray source detection (VTP, wavelet, sliding cell) . Optical Imaging: Identification and Classification . ... ACIS-I 16 16 . ... ROSAT sources detected in 30ksec . Chandra vs. ... Relative Positional error . ... 2 2 optical DSS-II images around each ROSAT-detected source above. ... Typical ROSAT PSPC positional uncertainties (~ 20 ; outer circles) in many cases include multiple optical candidates. Chandra source IDs are less ambiguous. ...

K.-H. Hofmann, T. Bl cker, G. Weigelt, and Y. Balega: . ... Annual Scientific Meeting of the Astronomische Gesellschaft at the Joint European and National Meeting JENAM 2001 of the European Astronomical Society and the Astronomische Gesellschaft, Sep 10-15, 2001, Munich, Germany . ... CIT 3 (= WX Psc = IRC +10 011 = IRAS 01037+1219), an oxygen-rich long-period variable evolving along the Asymptotic Giant Branch (AGB), is one of the most extreme infrared AGB objects. ... Back to Group Home Page ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The X-ray spectrum of KL Dra observed during the faint optical state. The best-fit model using an absorbed single temperature thermal model with metalicity appropriate for CNO processed material is shown as a solid line. ... KL Dra is a helium accreting AM CVn binary system with an orbital period close to 25 mins. Approximately every 60 days there is a 4 mag optical outburst lasting тИ®10 days. ...

Images of real SODART telescope SODART covered part of OB at Lavochkin (March 1998) . SODART Flight Optical Block at Lavochkin (30 Jan 1998) . Integration of Flight Optical Block at IABG clean facility (Dec 1997) . SODART slides integrated at Lavochkin (Dec 1997) . Optical block thermal vacuum tests at IKI (Sep 1997) . SODART vibrational tests (Feb 1997) . ... SODART Point Spread Function . Simulated SODART image of 5 X-ray sources: on-axis, 4, 8, 10, 15 arcmin off-axis. ...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

... Field of interest: data analysis and interpretation of X-ray observations of BHC and NS systems, astrophysics of compact objects and related phenomena: X-ray , optical and radio observations , shocks and stellar winds, emission mechanism, the spectral and timing analysis of the X-ray emission from microquasars ( signature of accreting BH), atoll- and Z-sources ( signature of accreting NS), modeling of INTEGRAL images % . ...

... This paper describes the architecture and functionality of a general purpose two dimensional plotting package for astronomy--QtPlot. ... QtPlot supports ASCII and XML format. ... This modified package, QtPlot, supports column delimited ASCII format tables (the so-called IPAC table format), but of greater importance is the fact that it supports XML structured for astronomical plot directives, underpinned by the eXtensible Data Format(XDF), a container for transporting scientific data. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Stars . ... Other Galaxies . ... Light of other eyes, other times: The X-rays and IR radiation making up the image have been travelling for a long time. ... The inspiration here came from a new ESA image of M31, the Andromeda Galaxy, composed from two very different images. ... Our nearest galactic neighbour, the Andromeda Galaxy?s brightness is caused by the hundreds of billions of stars that are contained within. ...

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 01.09.2010 . ... All news ...

Title: A New Model of the Gravitational Lens 0957+561 and a Limit on the Hubble Constant . Authors: Norman A. Grogin , Ramesh Narayan (Harvard Univ.) ... Title: ROSAT/PSPC observation of the distant cluster CL0939+472 . ... Title: Interaction in the Bimodal Galaxy Cluster A3528 . ... Title: Cosmological Implications of Galaxy Cluster Evolution . ... Title: Galaxy Cluster Virial Masses and Omega . ... Matches 201 to 222 from a total of 222 matches for the search pattern galaxy cluster . ...

INFRARED FOURIER-SPECTROMETER SICH-F . ... Instrument work regimes: 1) Inside. 2) Calibration at inside standard sources 2 - 4 times per a rotation. 3) Calibration at "free space" 2 - 4 times per a rotation. 4) Infrared radiation measuring 10 - 40 min. per a rotation. ... Spectrometer consists of the photodetector block and the block of signal processing and control. ... Diagnostic information and attach data will transfer by state telemetric channels. ... Detector temperature. ...

http://hubblesite.org/newscenter/archive/releases/2002/24/image/a/ A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy optically emitting electrons as they move.

astro-ph/0503554 Инфракрасное излучение от внесолнечной планеты (Infrared radiation from an extrasolar planet) . ... astro-ph/0503521 Связь между прямым оптическим и гамма излучением гамма-всплесков (A Link between Prompt Optical and Prompt Gamma-Ray Emission in Gamma-Ray Bursts) . Authors: W.T. Vestrand et al. astro-ph/0503457 Обнаружение теплового излучения внесолнечной планеты (Detection of Thermal Emission from an Extrasolar Planet) . ... Authors: Andrei Linde . ... Authors: G. Gonzalez . ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...

... Plug-plate cartridges and science fiber harnesses . ... Array 19891124 Comments on Plug Board Design 19891228 Large Capacity Archival Data Storage 19910126 Imaging Survey Plan 19910528 Telescope enclosure and site development 19910801 IR All-Sky Camera 19910814 Mechanical Properties of Ribbed Plastic Sleeves 19910912 Bending and Drilling Aluminum Plug Plates 19911019 Fiber Positioning System for the SDSS * 19920608 Telescope Tracking Smoothness 19920916 Results of the 1/92 Fermilab ...

... 318, P L35-L38 (1997). Abstract . ... 318, P L39-L42 (1997). ... 318, P L43-L46 (1997). ... 318, P L47-L50 (1997). ... 318, P L51-L54 (1997). ... 318, P L55-L58 (1997). ... 318, P L59-L61 (1997). ... 318, P 331-336 (1997). ... 318, P 337-346 (1997). ... 318, P 347-360 (1997). ... 318, P 361-375 (1997). ... 318, P 376-382 (1997). ... 318, P 383-389 (1997). ... 318, P 390-404 (1997). ... 318, P 405-415 (1997). ... 318, P 416-428 (1997). ... 318, P 429-442 (1997). ... helpdesk@link.springer.de . ...

Links on this page are to sites that hold information on the Sun , our nearest star . ... Big Bear Solar Observatory (BBSO) , California, USA. Mauna Loa Solar Observatory (MLSO) , Hawai'i, USA. ... Space Environment Center, Current Solar Images , Boulder, Colorado, USA. ... Solar Data Analysis Center, Latest Images , at GSFC, Maryland. ... NSSDC - National Space Science Data Center, Solar Physics (at GSFC). ... NSSDC - National Space Science Data Center, Space Physics (at GSFC). Back to Links ...