... Welcome to the X-Ray World Wide Web Server! This server has been operational since April 1994. ... It is the repository of the COREX bibliography and database, the Henke atomic scattering factors, and other information of interest to x-ray spectroscopists. It provides links to additional locations for information about x-ray research, including conferences , synchrotron radiation laboratories , and other x-ray related Web or FTP sites . ... UW Synchrotron Radiation Center (Stoughton, WI USA) . ...

The following Net resources contain images of nebulae. ... Astromart archive . ... Anglo-Australian Telescope 3.9m; Siding Spring Obs. NSW Australia ( image index ) . ... Mark Cox's archive. ... Images from Kitt Peak National Observatory by George Jacoby . ... Hubble Space Telescope 2.4m; NASA ( image index ) . ... index of NGC Images on the Net . ... National Undergraduate Research Observatory 31-inch at Northern Arizona Univ. ... University of Oregon archive ( image directory ) . ...

USING THE CORRELATION BETWEEN ISGRI SURVEY RESULTS AND OTHER CATALOGUES TO AID SOURCE IDENTIFICATION John B. Stephen, A. Malizia and L. Bassani IASF-INAF, Via P. Gobetti 101, 40129 Bologna, ITALY, E-mail: stephen@iasfbo.inaf.it ABSTRACT In order to help in the identification of INTEGRAL/ISGRI sources, we have developed a software package which allows a rapid and detailed cross-correlation to be performed between various source catalogues. ... We show below some preliminary results from this analysis. ...

... Sternberg Astronomical Institute , Moscow University . ... Present edition unites two parts of Catalogue of interacting galaxies by B.A.Vorontsov-Velyaminov: the first part (Part 1) containing 355 systems was published in 1959 [1] and the second one (Part 2) with 497 objects - in 1976 [2].Thus two published parts of Catalogue include 852 interacting systems. ... All new of them (1162 by number) were taken from the comments to the galaxies in Morphological catalogue by Vorontsov-Velyaminov et al.[ ...

... The Arecibo RFI Environment : . ... This page shows the present environment for RFI at Arecibo. the web page is: http://www.naic.edu/rfiuser . The Northern VLA Sky Survey (NVSS) : . ... The NASA/IPAC Extragalactic Data Base (NED) : . This is built around a master list of extragalactic objects for which cross-identifications of names have been established, accurate positions and redshifts entered to the extent possible, and some basic data c collected. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . Spaceflights Chronology . Chronology of Extravehicular Activity . ISS 45/46 . ... Rocket Space Complexes . ... Launches Chronology . ... Automatic Space Systems . ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... The VSOP Survey Continuum Source List . The radio sample for the VSOP continuum survey was defined to include all extragalactic radio sources with: . a total flux density at 5 GHz, S>=1.0 Jy . ... The sample also included all sources in the sky with a 5 GHz flux density S>5 Jy, regardless of spectral index and galactic latitude. ... The source would then be included in the VSOP sample (three of the sources were found with a flux density above 1 Jy and added to the sample). ...

... The acquisition data base of meteorological temporal data including systematic and chronologic cataloque for Global Tropical Cyclogenesis (on the whole of World Ocean's aquatorium) for 1983-1992 time interval is developed and based on personal computer IBM PC/AT. ... The data base consists of the following units: 1. ... This data base offers a unique opportunity to analyze macro- and synoptic-scale temporal features of global tropical cyclogenesis as indivisible physical process. ...

Preface 9 Preface The necessity of the preparation and edition of such intricate publication, that is the printed version offered to the reader, of geoinformation system including the chronological catalogue and evolutionary database of the global tropical cyclogenesis is dictated, in opinion of the authors, whole number of objective circumstances. ... It derivates the serious dissensions in the initial (`raw') information as well as in databases and archives of regional cyclogenesises. ...

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... Any object with either a raw count-rate 70 or flagged as having a mod-8 pattern is checked to see if it might have diffraction spikes. ... Count the number of objects along position angles of 45 and 135 degrees from the centre of the star that lie within a radius of 10 and 120 pixels from the centre and a distance of no more than 5 pixels from the radius line. ... If the number of star along the spikes (n1) is > 3 * n2 then conclude that there are diffraction spikes and flag sources along the spikes...

Astronomy Picture of the Day . The Lagoon Nebula in Three Colors . ... 6.10.2002 . ... The above picture , from the Curtis-Schmidt Telescope , however, shows the nebula's emission in three exact colors specifically emitted by hydrogen , oxygen , and sulfur . ... 2001 2002 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: M8 - Lagoon Nebula - emission nebula . Publications with words: M8 - Lagoon Nebula - emission nebula . ... Emission Nebula IC 1396 . ...

... Ephemerides . ... Natural Satellites Data Center service. ... Please complete the form below, fields marked with * should be filled. See List of keywords for object List of keywords for subject Main journals list . ... by Keywords Title Title, Keywords and Abstract Authors Journal/Livre/Rapport: . ... AND OR NOT Exact sentence (within this field) AND . ... AND OR NOT Exact sentence (within this field) . ... Keywords . ... AND OR NOT Exact sentence . within this field) . ...

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... January 2006 resources . FROM THE January 2006 ISSUE . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

Russian Military Space Activity . r The experts in space and rocketry field as well as ones interested in the Russian cosmonautics know quite a well The Military Aspects of the Soviet Cosmonautics book by Maxim Tarasenko published in 1992. This book still is an unique independent Russian research in the military space programs' field. ... Instead, as a result of the author's many years efforts, The Russian Military Space Activities book manuscript was practically finished early in 1999. ...

... One striking feature is a small source of almost pure H 2 line emission, which is located near one of the compact sources in Orion reported by O'Dell and collaborators (HST-18 = 203-504). ... H-H objects, Proplyds, Orion Bar, H 2 . ... We obtained a series of images across the bright rim of the Orion Bar near the peaks of mm-wave molecular line emission with NICMOS cameras 1-3 (NIC1, NIC2, NIC3) in several filters on 1998 February 18. ... The suggestion of an H-H object does not seem compelling. ...

... Contacts: Evgeny A. Loupian, Dr. Sci., e-mail: evgeny@smis.iki.rssi.ru Sergey A. Bartalev, Dr. Sci., e-mail: bartalev@smis.iki.rssi.ru Web interface for burnt area mapping using Landsat data Stellar Tracker In 2013 IKI RAN together with the NPK "Electrooptics" completed the phase of the five-year research on studying the ways to build a stellar inertial navigation system (SINS) for aviation applications. ... Fig. 1 shows the SINS layout created on the basis of the astronomical camera. ... Fig.1. ...

As of 1.3, the Apache source directories have been re-organised. This re-organisation is designed to simplify the directory structure, make it easier to add additional modules, and to give module authors a way of specifying compile time options or distribute binary modules. ... The non-module source files have moved from src into src/main . ... Configure . ... For example, say it is called mod_demo.c. The archive for this module should consist of two files, in a suitable directory name. ...

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...