Next: Observational Zoo of Binaries Up: No Title Previous: Contents . In the early 1980s, our understanding of binary star evolution љ based on the pioneer work by Paczynski (1971)[ 150 ], Tutukov and Yungelson (1973)[ 195 ], van den Heuvel and Heise (1972)[ 201 ], allowed us to construct a general evolutionary scenario љ which successfully explained the genesis of well-studied normal stars and offered potential explanation for new X-ray sources discovered in space experiments. ...

... 2014 July 21 . Spacecraft Rosetta Shows Comet has Two Components . Image Credit: ESA / Rosetta /MPS for OSIRIS Team ; MPS /UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA . Explanation: Why does this comet's nucleus have two components? The surprising discovery that Comet 67P/Churyumov–Gerasimenko has a double nucleus came late last week as ESA 's robotic interplanetary spacecraft Rosetta continued its approach toward the ancient comet's core. ... About APOD | ...

Top] [Prev] [Next] . Serpens SVS 20 is a binary pre-main sequence star, whose components are separated by 1.5 arcsec. Although of very different brightness, both components have the same spectral energy distribution in the range 0.9 to 5 microns. Eiroa and Casali (1992) discovered that SVS 20 had a arc-shaped nebulosity, departing from the binary star towards the southwest. ...

Remote Visualisation System Server User Guide Last Modified: 02 March 2005 Introduction This document is a guide to running the RVS Server. ... These components are as follows. ... The $RVS_HOME/bin/rvs.sh script is used to start the RVS Server components. ... Stopping the RVS Server The following command can be used to stop all components executed using the 'rvs.sh start' command. shell% $RVS_HOME/bin/rvs.sh stop NOTE: This command DOES NOT stop processes started using the rvs-*.sh commands. ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... Created: 23 February 2001 . ... SOFTWARE MAINTENANCE MANUAL . ... 9 January 2001 . ... Note: in the final document, the table of contents will be to third level] . The Software Maintenance Manual describes the procedures for installation and maintenance of the software for the Gemini Near-infrared Integral Field Spectrograph (NIFS). ... Section 19.4.3 of the document “Programmatic Requirements for Gemini Instrumentation Development” states the requirements for the Software Maintenance Manual . ...

Contents] [Prev page] [Next page] [Index] . Navigator 4 from Netscape, which is part of the Communicator product suite, includes three new areas of functionality that taken together give you Dynamic HTML. The three components of Dynamic HTML are style sheets, content positioning, and downloadable fonts. Used together, these three components give you greater control over the appearance, layout, and behavior of your web pages. ... Introducing Downloadable Fonts . ...

OptInt PmWiki : Pm Wiki / Wiki Farm Terminology . ... A wiki farm is nothing more than multiple wikis that share the same installation of the PmWiki software. ... All of the wikis in a farm are more or less the same, except the "home wiki" is a wiki that is located in the same directory as the PmWiki software. ... Home wiki . A wiki in a farm that's located in the same directory as the PmWiki software and therefore shares the farm's cookbook/ and pub/ directories. ... Use PmWiki directory instead. ...

Peremennye Zvezdy", . ... Star Name: . GSC 3710-00312, USNO-A2.0 1425-04252279 . ... Variability type: . ... USNO-A2.0 1425-04252279 is located at the distance of 15?.7 from the X-ray source 1RXS J031707.9+572942, which is larger than the position error of the source (12?), but its hardness ratio HR1 = 0.03 0.29, typical of chromospherically active stars, and its character of variability allow us to assume that the star is related to the X-ray source. ... Eclipsing variability . Sine wave 1 . ...

Next: Stellar models Up: Introduction Previous: Photometry Contents . In a hierarchical stellar system, the separation between two neighboring stars is always much smaller than the separation of this pair from the next companion in the system, be it another pair or a single star. ... They are also numerically easier to handle than non-hierarchical systems, since each pair can be described with the standard orbital parameters, and each star with a small number of physical parameters. ... System . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Nearly 50 years ago, Dr David Andrews , a former Astronomer at the Armagh Observatory, discovered a new minor planet or asteroid. It was discovered on the night of 25th January 1965, and the object eventually received an official number (1727) and the name "Mette" , named by the discoverer in honour of his wife, "for her tolerance of my nocturnal working hours and for the many months spent away from home". ...

... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...

Proposal Identification No.: P2391 Date Received: 2008­Feb­11 14:47:10 Technical Page Proposal Type: Long­term General Category: Pulsars Observation Category: Galactic Total Time Requested: 57 Hours Minimum Useful Time: 30 minutes Proposal Title: Measuring the masses of the components of two binary millisecond pulsars discovered in the ALFA pulsar survey ABSTRACT: So far, the ALFA pulsar survey has discovered two new millisecond pulsars (MSPs), PSR J1903+0327 and PSR J1949+31. ...

... 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. ...

... The axial support is provided by 78 air pistons. ... The transverse support is provided by 38 air pistons, supported by cantilevers from the mirror cell, that act on the mirror local center of gravity surface. ... The locations where the transverse mirror support forces should be applied to the mirror are listed in Table 1 and illustrated in Figure 1. ... Figure 1: CAD drawing showing the 2.5-m primary mirror and the locations of the transverse support posts (black) and axial pneumatic pistons (blue...

Next: When the Observer isn't there: The OMP Feedback System . Up: Control System . ... The EMS implements algorithms as signal flow graphs, uses Matlab for standard algorithms and visualization, and uses ODBC (Open Database Connectivity) and databases for organizing pertinent data. ... Matlab can also interface with the GBT Monitor and Control system using a SOAP java client and XML parser, allowing Matlab to interact directly with the GBT, and pipe data back up into WiT. ...

Next: XEncirEn Up: CCF Components Previous: General CCF Components Contents . The mirror calibration files describe the X-ray response of the three XMM mirror modules. As a baseline, there will be one CCF constituent per telescope. ... Description . Generation from Ground Calibration Data . Generation from In-Orbit Data . ...

Detected Supernovae . The search have produced till now the detections of 4 SNe. ... This result highlights the power of infrared monitoring in detecting Obscured SNe and indicates that optical surveys are probably missing a significant fraction of SNe, especially in obscured systems such as starburst galaxies. ... In Fig. we show the archival SOFI image of NGC3256 (left) and the first image obtained in 2001 (right) where SN2001db has been detected. ...

spaceweb@oulu.fi - last update: 9 May 1998, 2010 UT (RR) . ... They were first discovered by Russell and Elphic (1978) and Haerendel et al. (1978), who studied the magnetic field measurements in boundary normal coordinates near the magnetopause, and found bipolar signatures in the Bn component (outward along the boundary normal): first outward and then inward (normal FTE) or the other way around (reverse FTE). ... 1996). ... Space Res. 18 , (8)151-(8)160, 1996. ... Space Physics Text Book of Oulu ...

... RJMCMC Similar to Richardson Green 1997 Knowledge of the PSF makes things easier Insensitive to e.g. posterior for ten sources with = 3: Number of Components 9 10 11 12 0.141 0.222 0.220 0.157 0.022 0.029 0.027 0.021 Mean SD 7 0.029 0.018 8 0.058 0.019 13 0.082 0.014 Simulated Data Source region (2 SD) is about 28% of the area and contains about 41% of the observations Positions (-2, 0), (0, 1), (1.5, 0) with intensities ... Approximate the number of sources (2 in this case) 2. ...