... The technology needed to implement a Distributed Astronomical Data Archive (DADA) is available today (e.g., Fullton 1993). Query interface standards are needed, however, before the DADA information will be discoverable. ... These parameters would be used to index each dataset in each catalog. ... The technology is available today to perform cross-catalog queries, to fetch the data at the click of a mouse, quickly to add new observation catalogs, and to distribute the load across multiple machines. ...

. There are several different shells available for Unix; the most popular are described here. You can use any one of these shells if they are available on your system. And you can switch between the different shells once you have found out if they are available. Bourne shell (sh) . C shell (csh) . TC shell (tcsh) . Korn shell (ksh) . Bourne Again SHell (bash) .

Order my book on Peer Instruction for Astronomy ! ... The book includes hundreds of ConcepTests, and was distributed FREE to most intro astro instructors across the country. ... By encouraging student participation and interaction during the lecture, Peer Instruction encourages students to critically think through the arguments being developed, and to discuss their ideas and insights with their neighbors. ... Student satisfaction with the courses have been high. ... Back to Paul Green's HomePage . ...

... Directives | ... Apache HTTP Server Version 2.2 . ... This document describes the terms that are used to describe each Apache configuration directive . ... Configuration files . ... This indicates where in the server's configuration files the directive is legal. ... A directive marked as being valid in this context may be used inside <Directory> , <Location> , <Files> , and <Proxy> containers in the server configuration files, subject to the restrictions outlined in Configuration Sections .htaccess ...

... A program called StarView acts as an interface to the Archive; it allows you to search the Archive and to retrieve data from it. ... To retrieve data electronically you need to be able to access StarView (or the Archive web site if you are interested only in public data), and you need to be a registered user of the archive. ... http://archive.stsci.edu/starview.html The web site contains directions and materials for installing StarView on your own computer. ... Click on [Begin Search] . ...

... CentralProcessor 0.11 documentation . ... vector<string> . ... Simager .dataset = spectralLineData.ms # Simager .Images.name = image .i.cube Simager .Images.shape = [ 2048,2048 ] Simager .Images.cellsize = [ 10arcsec,10arcsec ] Simager .Images.direction = [ 17h44m25.4506, -51.44.43.791, J2000 ] Simager .Images.restFrequency = HI # Simager .gridder.snapshotimaging = true Simager .gridder.snapshotimaging.wtolerance = 2600 Simager .gridder = WProject Simager .gridder.WProject.wmax = 2600 ...

Paolo Padovani , II Universit di Roma , Paolo Giommi , ASI, SDC and Fabrizio Fiore, ASI, SDC and Osservatorio Astronomico di Roma . Original Version: MNRAS, (1997), 284, 569 . Text copyright (c) 1997. ... We study the X-ray spectra of 114 flat-spectrum radio quasars (FSRQ) using the hardness ratios as given in the WGA catalogue of ROSAT sources. ... We find that FSRQ have a distribution of energy spectral indices ranging between 0 and 3 with a mean value alpha_x ~ 1. ... Figure 1 (13kb) . ...

... Directives | ... Apache HTTP Server Version 2.4 . ... This document describes the terms that are used to describe each Apache configuration directive . ... Configuration files . ... This indicates where in the server's configuration files the directive is legal. ... A directive marked as being valid in this context may be used inside <Directory> , <Location> , <Files> , and <Proxy> containers in the server configuration files, subject to the restrictions outlined in Configuration Sections .htaccess ...

This module provides for user authentication using MD5 Digest Authentication. Status: Experimental . ... Module Identifier: digest_auth_module . Compatibility: Available in Apache 1.3.8 and later. ... If you use this module, you must make sure to not use mod_digest (because they share some of the same configuration directives). ... Note: Digest authentication is more secure than Basic authentication, but only works with supporting browsers. ... Module: mod_auth_digest . ...

... Views of the Solar System is maintained at several different sites on the Internet. ... This is the primary site for "Views of the Solar System." ... This site is maintained by Lee Burnside ; see also their home page . ... You are permitted to set up a Views of the Solar System mirror site as long as you follow the following guidelines: Views of the Solar System may be distributed on the World Wide Web as long as it is used for non-profit applications and the pages are not modified. ...

Distribution of the analyzed SEPs with different >100 MeV proton fluxes ( J 100 ) at the microwave flux density plane ' S 9 vs. ... 1) General correspondence takes place between intensities of microwave bursts and proton fluxes - J 100 increases when S 9 and S 15 rise. ... 3) Powerful microwave bursts ( S 9 , S 15 >3000-10000 sfu ) with hard radio spectra ( S 9 < S 15 ) correspond to majority of powerful proton fluxes ( J 100 >10 pfu ). ...

SITE 2010 Comprehensive Characterization of Astronomical Sites Kislovodsk, Russia, 49 October 2010 Conference Summary Marc S. Sarazin*a a European Southern Observatory, Garching, Germany Abstract The main topics discussed during the Site 2010 conference are outlined and the outcome is described. Keywords: Astronomical Site testing, precipitable water vapor, atmospheric turbulence, cloudiness, seeing 1. ... Site surveys for National observatory projects in China, India, and Iran benefit from this. ...

... As with all tutorials, this document describes detailed steps to just one particular effect. ... Create a new Greyscale image, and put some text in it. ... Duplicate U1, then run Gaussian blur 5.00. ... Then, invert the image so it is white on black. ... Multiply U2 and U3. ... Invert U1, so it is white text on black background. ... Then run Gaussian Blur 4.00. ... If you like you can multiply this by a texture, for a textured background, but for this tutorial the background is white. ...

Gamma-rays from the GC . M.Chernyakova (DIAS), D.Malyshev (DIAS), F.Aharonian (DIAS, MPIK), R.M.Crocker(MPIK), D.I.Jones(MPIK) 1 10°x10° Count and TS maps (>300 GeV) Gamma-rays from the GC 2 TS maps of the GC at different energies 300 MeV ­ 3GeV 3 GeV ­ 30 GeV 30 GeV ­ 300 GeV Gamma-rays from the GC 3 4 Gamma-rays from the GC Lightcurve 5 Gamma-rays from the GC Source spectrum Model X-ray and low-energy emission come from the central object, probably SMBH accretion disk. ...

... Previous: Introductory Note about the release 3.3.6 . Next: Bug Reports for This Document . XFree86 is a port of X11R6.3 that supports several versions of Intel-based Unix. ... This release consists of many new features and performance improvements as well as many bug fixes. ... XFree86/OS2 is the name of the implementation of XFree86 on OS/2 based systems. ... Binaries for OS/2 Warp, Merlin, and Aurora are available from: ftp.XFree86.org:/pub/XFree86/3.3.6/OS2 . ...

At Arecibo we have a variety of optical instruments that we use to study terrestrial airglow emissions. ... As a complement to the airglow instrumentation we also maintain a set of optical instruments, called lidars, used for "active" remote sensing of the atmosphere. That is, we generate our own source signal using lasers and measure the characteristics of the light scattered back from the atmosphere. ... An operations manual for the Optical Laboratories is currently under major revision. ...

3D Full Moon . ... Credit Copyright: Laurent Laveder ( PixHeaven.net ) Explanation: Get out your red/blue glasses and check out this satisfying stereo anaglyph of the Full Moon. ... Regardless of your preferred technique for stereo viewing , the 3D effect comes from combining pictures of the same scene taken at different angles -- mimicking the slightly different perspective of each eye. ... NASA Web Site Statements, Warnings, and Disclaimers . NASA Official: Jay Norris. ...

XmCCD ----- The programs provided here offer a Linux graphical user interface to astronomical and scientific CCD cameras. ... SBIG has provided the library used here. It is essentially the same library used by commercial software for control of their cameras under Windows. ... This distribution includes source code to utilize the Santa Barbara Instrument Group (SBIG) shared library libsbigudrv.so with a Motif-based graphical user interface program to control SBIG astronomical CCD cameras. ...

Since the first stars and then galaxies formed the Universe has been an immense factory converting neutral gas into stellar material. ... In this seminar I will discuss recent results from the Galaxy And Mass Assembly (GAMA) survey, probing the assembly of stellar mass though both in-situ star formation (as traced by multiple SFR indicators) and interactions (both mergers and interaction induced star-formation) - in galaxies spanning ~4 decades in stellar mass. ...

... The procedure of radiometer signal integration can be considered as a sort of reducing dimension of the initial sampling space, where the samples are the result of analog-to-digital conversion. ... The probability distribution of the signal and spikes is completely known. ... The quality of the considered algorithm could be also illustrated by Figure 2 . ... One could see the considered adaptive algorithm is preferable even by low degree of compression, because all spikes have been depressed. ...