... The ruze formula gives the fractional gain caused by errors in the surface: fracgain=exp(-(4*pi*delta/lambda)^2) ... delta=rms surface error,lambda=wavelength The fractional gain is gainMeasured/gainExpected . ... The gains we measured include losses from pointing errors, pitch/roll/focus (prf) errors, and errors from the surface. ... Figure 7 shows the fractional gain from the pitch/roll/focus errors. Figure 8 shows the measured gain corrected for the pitch/roll/focus errors. ... Figure 11. ...

Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

... You are here: start €Ё correlator €Ё distribution . ... Distribution of output data to PIs . ... You can make your own directory for distributing data to PIs (or geodetic analysts) on cuppa21 under: /data/corr/corrdat/DistributeData/ . ... To copy FITS files etc. from the correlator output area to a folder on CloudStor+ (can also just use scp or rsync if preferred): gloPut7T.sh -m VX021A.FITS /data/corr/corrdat/vx021a hbignall@cuppa21 /data/corr/corrdat/DistributeData/hayley/ownCloud/VLBI/vx021a . ...

Next: When the clock is Up: Keeping Time Previous: The hardware and software . In the Debian system, the system time zone is determined by the symbolic link /etc/localtime љ . ... If it is unset, the system time zone is assumed. ... The date љ command shows the current date and time. ... date љ is also used to set the kernel's software clock: # date 07142157 . ... While each user can have his own time zone, the clock is the same for everyone. date љ only shows or sets the software clock. ...

The first series of images refers to NGC 1672, a barred spiral. We present a gray scale V-band image to show the overall morphology, followed by an intensity map in H-alpha which shows how the H II regions are distributed, followed by the velocity map. ... Different colors refer to different velocities as the galaxy is rotating. ... The following image is an H-alpha intensity map of the spiral galaxy NGC 1292. ... This next image is an H-alpha intensity map of the spiral galaxy NGC 1406. ...

... Data Collection and Analysis . AAS 223 . ... The data below shows who has been tweeting about the 223rd meeting of the American Astronomical Society , with a cut-off to avoid being drowned by the " long tail " of the distribution. ... If you mouse over the bar then you the user's actual name (or at least whatever text was given to Twitter) and the number of tweets or retweets they made. ... Total number of tweets , of which were made by the following accounts (the cut off to appear is tweets): . ...

A Test of Galaxy Evolutionary Models Via Angular Sizes M. Im S. Casertano, R. E. Griffiths, & K. U. Ratnatunga (The Johns Hopkins University) The relationship between angular size, magnitude, and redshift of faint galaxies is explored as a potential tool to distinguish between different galaxy evolutionary models. ... The mild lumi­ nosity evolution model predicts more luminous galaxies of large angular size at high redshift, as does a standard no evolution model. ... 25) with redshift higher than z ? ...

... Each plot shows the information about 4 S/C, by the different color. for the INTERBALL TAIL PROBE - the red color is used, . ... The polar diagram, which shows the corrected geomagntetic co-latitude and corrected geomagnetic local time of the 4 spacecraft during the time intervals selected in accordance with the FSP1 criteria. ... In the last 4 plots the days are shown along X axis, in the last two plots the Universal time is shown along the Y axis . ... for the POLAR - the third line, . ...

THE CHEMICAL COMPOSITION OF REGOLITH AT THE MOON'S SOUTH POLE, ACCORDING TO DATA OF LUNAR PROSPECTOR AND LUNAR RECONNAISSANCE ORBITER MISSIONS. ... Introduction: The article tells about the results of integrated study of the craters at the Moon's South Pole with permanently shadowed region of craters. ... We have compared the ultimate composition of the soil matters in the craters with "cold traps" in the Moon's South Pole with regard to thorium, ferric oxide and hydrogen contents (Fig. ...

... Show Times . ... Armagh Planetarium has a range of shows suitable for all the family. ... Due to the darkness and sound levels some shows are only suitable for children of six years and above. ... Please check the show descriptions (see below) for age ranges. ... AGE restrictions apply: NO ENTRY FOR CHILDREN UNDER SIX YEARS OLD . ... Live presenter-led show : Duration 25 mins . ... Specially produced by Armagh Planetarium, 'The Little Yellow Star' is a new show aimed at pre-school aged children. ...

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... 2009 November 24 . Cassini Flyby Shows Enceladus Venting . Credit: NASA / JPL / SSI ; Mosaic: Emily Lakdawalla . ... Enormous ice jets are erupting. Giant plumes of ice have been photographed in dramatic fashion by the robotic Cassini spacecraft during this past weekend's flyby of Saturn's moon Enceladus. ... That Enceladus vents fountains of ice was first discovered on Cassini images in 2005, and has been under close study ever since. ... About APOD | ...

A STUDY OF THE FRAGMENT DISPERSAL AND TRAJECTORY OF THE SAYH AL UHAYMIR 001 METEORITE SHOWER. ... We obtained hundreds of GPS find locations, analyzed the fragment distribution, and developed a model of the meteorite's trajectory. ... More than 2670 samples weighing more than 450 kg have been collected. ... Increasing fragment mass along track indicated a flight direction of 233o. The fragments' mass distribution was used to model the meteorite trajectory. ...

General Forum Message . ... Post . ... Angular Speeds Of Meteor Showers . ... Post Message | ... Does anyone know of some place online where I can find the average or typical angular speeds for given meteor showers (at least the major ones), preferably in degrees per second, or at least in descriptive terms, such as "fast" or "slow"? ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Astronomy Picture of the Day . ... 21.10.1999 . ... Credit Copyright: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA Explanation: The Sun rotates on its axis about once every 27 days. ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... October 1999 . ... 1999 2000 . ... Publications with keywords: Sun - solar rotation - sunspot . ...

... From the uvby photometry and proper motions for about 5500 nearby F stars we have found the following: (i) F stars , taken in narrow ranges of metallicity , show at [fe/H] 0 rather distinct cut-off in their distribution along the Main Sequence (MS) at the blue side, which is suggested to be an indication for the MS turn-off in stellar groups of fixed metallicity ; (ii) the corresponding turn-off age from theoretical isohrones strongly correlates with the ...

For solar wind dials without any explanatory text, see this page . ... There are three logs, one for each condition index ( K P , Solar Wind ,and NOAA/SEC .) ... More about the solar wind's recent behavior can be found on my Current Solar Wind Conditions page. ... Other items of interest include NOAA/SEC Current Conditions , my composite current Auroral Images page, Windows on the Universe: Space Weather , and Public Outreach Index, Department of Space Physics and Astronomy, Rice University . ...

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

... Having quite low efficiency at this pilot stage it is natural to try to improve the selection criteria. The analysis of all accumulated data discussed here, shows that in order to improve the selection of BCGs the following additional criteria and selection procedures should be applied to the preselected lists of candidates: . ... The results of follow-up spectroscopy have shown that even part of the prominent first priority candidates turned out non-emission objects. ...

This example shows a difference between CSS's table model for HTML and for other document formats. The first, HTML, example is defined by HTML to be illegal, as it would lead to overlapping cells if HTML's rules for layout are followed. ... The diagram depicts how the two examples, the HTML one and the almost identical non-HTML one, might be rendered. ... The rendering of the non-HTML example is on the right, it follows the CSS rules and thus has no overlapping cells. ...