energy levels (n=2): Edlen, B, 1983, Phys. Scripta, 28, 483 %energy levels: Martin, W. C., Sugar, J., Musgrove, A., and Dalton, G. R., 1995, NIST Database for Atomic Spectroscopy, Version 1.0, NIST Standard Reference Database 61. %theoretical energy levels: Sampson and Zhang, 1995, unpublished calculations %comment: energy levels renumbered %produced as part of the Arcetri/Cambridge/NRL atomic data base collaboration % % K.P.Dere and E.Landi 1999 . ...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

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. ...

... We present a proposed standard for data dictionaries associated with catalogs being accessed through the Astrophysics Data System (ADS) Mosaic Catalog Service. Each catalog made available for searching must have a data dictionary, which consists of a set of specified keywords describing format, content and location of data. ... There are two keywords in the Table Data Dictionary which indicate to the server software that the corresponding column contains special attributes. ...

Open Systems Handbook: A Guide to Building Open Systems . ... This book is designed to provide interested individuals and organizations with an overview of open systems and the work being done to achieve them. ... This section is organized using a descriptive model of an open systems environment developed by the IEEE PI 003.0 Working Group, which is developing the Guide to POSIX-based Open System Architecture. ... Standards for open systems 13 . Chapter 3: The open systems environment (OSE) 15 . ...

... ABBREVIATIONS . ... ASTO (Archive Storage System) . ... COMMON . Common components . ... Common Pipeline Library . ... Data Base Browser . DFS . DFS (Data Flow System) . DHS . DHS (Data Handling Server) . ... DHS SUBRIBE . ... DFS Department general level . ... ISAAC pipeline . ... MIDAS (Munich Image Data Analysis System) . ... Next Generation Archive System . ... OLAS (On-Line Archive System) . ... SAF (Science Archive Facility) . ... VLT Control Software On-Line Archive Client . ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Miscellaneous Documentation . ... This page documents all the relevant standards that the Apache HTTP Server follows, along with brief descriptions. ... http://www.rfc-editor.org/errata.html - RFC Errata . ... This document summarizes the history of HTML development, and defines the "text/html" MIME type by pointing to the relevant W3C recommendations. ... HTML documents are SGML documents. ...

... The absolute flux calibration of NICMOS will be calculated from observations of standard stars with known flux distributions F( ). ... In order to expand the set of IR standard stars in the appropriate flux range for NICMOS, M. Rieke, R. Thompson, and collaborators at the University of Arizona are making photometric observations of solar-analog stars, which will be used to normalize the solar spectrum to the observed IR magnitudes. ... Relative flux references accurate to 1.5% for standard...

Possibilities for Database Archival and Access Brian Kent Cornell University bkent@astro.cornell.edu http ://w w w .astro.cornell.edu/~bkent/ Data Archive Objectives · Platform independent node/server, compatible with standard VO Web Service Protocols · Quick and easy access through the web to data using any web browser with standard plugins · Perform simple analysis and calculations on ... E-ALFA Ar chive 11 ...

... Classes . ... casa::Aberration . ... More... #include < Aberration.h > . ... Aberration (const Aberration &other) . ... operator() ( Double epoch) . ... Actual Aberration for a certain Epoch is calculated by the () operator as Aberration(epoch), with epoch Double MJD, values returned as an MVPosition . ... Double casa::Aberration::aval [3] [private] . ... Double casa::Aberration::checkEpoch [private] . ... Double casa::Aberration::dval [3] [private] . ... const Double casa::Aberration::INTV [static]...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... every new catalog of objects has to be contained in the UNIX directory having the same name as the catalog of objects; . ... the programs for local operations (programs of low level) with the catalog of objects are also in the same directory; . brief characteristics and names of the programs and file with the description of the catalog are stored in the file cats_descr ; . ... All astronomical catalogs have a different format and list different observables. ...

XMM-Newton Science Analysis System . ... Standard colours are given whenever there are at least two appropriate filters. These colours may be calculated from more than one instrumental colour, and all the standard magnitudes that have been computed are given in seperate columns, and the colour that was used in the calculation is given at the end of the label string. Standard colours and errors then follow. XMM-Newton SOC/SSC -- 2007-07-09 ...

... The software enables to browse HITRAN-86 or 96 databases. It enables input first 7 atmospheric gases. ... calculate atmospheric transmittance on any pressure level, . calculate instrument transmission functions through the atmosphere, . ... The software is supplied by standard atmospheric profiles, extracted from FASCODE_3.0 FORTRAN codes (dowloaded from PL/GP), and by instrument response function for IR channels of NOAA 14 satellite (both AVHRR and HIRS, downloaded from NOAA/NESDIS). ...

... ARC 3.5m | Standard Stars . Bright Star Catalog - broken into smaller files for easier management by TUI: . ... Double Star Catalog . ... Various Standard Star Links and associated TUI Catalogs . ... Data from which the plots were produced are also available by ftp access from the standard star pages.- specstds.tui . HST UV spectrophotometric standards. Data for 23 stars based on IUE and optical spectra and calibrated by the primary WD standards. ... Echelle Standards - echstds.tui . ...

... The material in "From Stargazers to Starships" meets several important requirements of the national standards. Pages cited below are from National Science Education Standards National Academy Press, Washington 1995. ... For example: the sections on astronomy not only describe calendars and sundials (including their construction), but also the astronomy of the ancient Greeks, including two different ways in which ancient Greeks estimated the distance to the Moon. ...

Hide Zen home . ... Large scale survey projects produce huge amount of data, which needs to be processed and organized in databases to provide access by astronomical community. There are many problems in the current state of art of accessing large astronomical databases and organizing programmatic access to the distributed and diverse data, which Virtual Observatory initiative should eventually to solve. ... Nowadays, it's not unusual to work with billions of objects in terabyte-sized database. ...

... Publication Originality and Plagiarism The PASP and ASPCS publication agreements warrant that authored manuscripts are original and previously unpublished. ... Peer Review, Confidentiality, and Conflicts of Interest Reviews of all PASP manuscripts are strictly confidential and all reviewers are anonymous. ... Authors are expected to follow the recommendations of reviewers and editors to correct and augment their manuscript citations when requested to do so. ...

... Archives . ... His foremost knowledge and historic account on statistical models related to errors may benefit astronomers. Although I didn?t study history of astronomy and statistics, I?m very much aware of how astronomy innovated statistical thinking, particularly the area of large sample theory. ... On the history and use of some standard statistical models . ... The particular reason for this paper into the slog is the following sentences: . ... Chandra Blog . ML Theory . ...

... Cavendish Astrophysics . Cavendish OptInt: . Optical Interferometry . ... Format Spec. ... This is the webpage of the Working Group on Optical Interferometry Data Standards, part of IAU Commission 54 (Optical Interferometry). The near-term goal of the working group is to develop enhancements to the OIFITS data exchange standard, in particular: . ... John Young (MROI) . ... The Cavendish optical interferometry web pages are maintained by John Young <jsy1001 (at) cam.ac.uk> . ...