PREDICTING A FINE DISPLAY OF LEONID METEORS . Armagh Observatory, 8 November 1999: . According to calculations by Armagh Observatory astronomer Dr David Asher, the Leonid meteor shower is expected to reach a peak during the early hours of 18th November, with a rate of more than 1000 shooting stars per hour for up to an hour or two either side of 02:00 am. These meteors are produced by dust grains given off by comet Tempel-Tuttle as it orbits the Sun once every 33 years. ...

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... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

... The only event-driven pieces of software were the user interface Hermes, the display server GIDS and the GDS server. ... Event-driven tasks are fundamentally different from procedural tasks. ... Using this event handling, a collection of routines has been built, which allows the programmer to construct a graphical user interface for a task. ... These are the events associated with user input keywords and one other event which is generated when a task is resumed after it was pausing. ...

... As of the 95NOV release, patch level 2.0, ESO-MIDAS is available under the GNU General Public License. The short statement of the GNU license is included in every MIDAS file; the full text is printed in the beginning of this manual and is included as a separate file in the ESO-MIDAS Release. ... All source code, documentation, as well as binary copies of ESO-MIDAS (already installed and without sources) for specific systems can be retrieved from the ESO-MIDAS anonymous ftp account. ...

... NICMOS data are represented by five arrays for each readout. ... Samples array. ... Each downlinked readout is always represented by these five arrays ( Figure 13.4 ). Multiple readouts in the same dataset (e.g., MULTIACCUM data) are represented by repeated sets of these five arrays ( Figure 13.5 ). ... For data where multiple samples of the array were obtained during the integration, the samples array denotes the number of samples for each pixel in the corresponding science image. ...

... The Unexpected Tails of Asteroid P5 . ... 12.11.2013 . ... Credit Copyright: NASA , ESA , and D. Jewitt ( UCLA ) et al. Explanation: What is happening to asteroid P/2013 P5? ... For reasons unknown, the asteroid is now sporting not one but six discernible tails. ... Were the main belt asteroid struck by a large meteor, it would be expected to sport a single dust tail. ... Publications with keywords: asteroid . Publications with words: asteroid . ... Asteroid 2012 DA14 Passes the Earth . ...

Next: Calling Parameters Up: CAL_getRGAFigure Previous: CAL_getRGAFigure Contents . The grating mis-alignment is parameterized with a set of Gaussian functions, whose parameters are stored in the CCF. ... The parameters , , are stored in the CCF. is the number of parameters available in the CCF. is the chromatic magnification that scales the width of the grating mis-alignment distribution as a function of angle of incidence and diffraction angle. ...

... The idea of this page is, to list the publicly available software which was natively compiled with the programmers toolkit X332prog.zip (or later) that is in the distribution. We are not interested in PMX, EXceed, or Linux programs that may be displayed on the servers without problems, but software which someone without a network (or in case of e.g. a network game, of course with a network as well) is able to run on his own OS/2 system. ... The Core XFree86-3.3.3.1 (13mar99) . ...

PHOTOMETRIC SEARCH FOR BLACK HOLES IN DORMANT X-RAY TRANSIENTS Є Є Aleksander Sadowski1 , Janusz Ziolkowski2 , and Krzysztof Belczynski3 ? Astronomical Observatory of Warsaw University, Al. ... Such definition means that our statistics for the number of expected BH X-ray binaries include both transient and persistent systems. ... If this value is 2 M , then, according to our calculations, Galaxy contains some 15 000 to 40 000 of BH X-ray binaries (and some 30 000 to 250 000 of NS X-ray binaries). ...

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. ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

Next: Quantum Efficiency Correction (a.k.a. Up: ROSAT HRI Recipes Previous: Appearance of new HRI . The mean pulse height analyzer channel (PHA) of a spectral distribution will vary depending on its location on the detector. Below is a method to compare observed data with that of preflight calibration measurements. ... For temporal gain variations, see The HRI Calbration Report . ... Retrieve the gain maps (mean PHA) from anonymous ftp at SAO. ... But don't forget temporal gain variations!] ...

XmCCD ----- The programs provided here offer a Linux graphical user interface to astronomical and scientific CCD cameras. ... It is the latest one they offer and the files included allow support for Android and Mac OS X. This distribution of XmCCD includes source code to utilize the SBIG shared library libsbigudrv.so with a Motif-based graphical user interface. ... The XmCCD source package includes and will install: SAOimage ds9 xpa cfitsio SAOimage is the primary image display for XmCCD. ...

The .out files contain the data displayed in plots of the wide spectral scans of High-CAL and the respective bets-fits obtained. Each of the 14 pipelines has a separate file. What to expect inside this file ? ... These files are made available for interested people to download. ... Note: Since the measurements for the beam0-pol_1, beam 5 (both pol.s) were missed from the set on tJD:53228 (due to the pre-amp and WAPP problems respectively), the corresponding fits & .out files missing. ...

... Canadian Astronomy Data Center, DAO/NRC . SkyCat is a tool that combines image visualization with access to astronomical catalogs and data archives. SkyCat uses a standardized URL syntax to access a large number of data sources on the net. ... More information on SkyCat can be found at the SkyCat Web site. The ESO SkyCat Tool includes the following features: . ... PostScript color printing of the display (image + graphics), . ... overlay catalog sources on an image, . ...

... I.A.Dynnikov, Three-page approach to knot theory. ... Universal semigroup, Funktsional'nyi Analiz I Prilozhenija, 34 (2000), no.1, 29-40 (Russian); English translation in Functional Analysis and Its Appl. 34 (2000), no.1, 24-32. I.A.Dynnikov, Finitely presented groups and semigroups in knot theory. ... Math. 2000, no. ... English translation: Russian Math. ... A.Vershik, Numerical invariants of exponential groups, and a locally free approximation of braid groups (in Russian), Zapiski Nauchn. ...

Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...

Modules | ... Apache HTTP Server Version 2.2 . ... Some files in the modules/experimental directory under the Apache distribution directory tree are provided as an example to those that wish to write modules that use the Apache API. ... If you link it into your server, enable the "example-handler" handler for a location, and then browse to that location, you will see a display of some of the tracing the example module did as the various callbacks were made. ... Using the mod_example Module . ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 08 - 14.10.2012, Forecast on 15 - 22.10.2012, Carrington Rotation 2128, 2129 (11,29.09-8,57.10.2012) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS REMAINED ON THE AVERAGE LEVEL. ... IT WAS CONSEQUEN- CE BY DSF 05.10, AFTER WHICH THE MODERATE MAGNETIC STORM (G2, Ams= 46, dur.= 33 h.) ACCORDING DATA OF THE CENTER IN BOULDER AND THE MINOR MAGNETIC STORM (G2, Ams = 36, dur.=30 h.) ACCORDING IZMIRAN DATA WERE REGISTERED. ...