... Timeline . ... 10a. Particle Drift . ... 11a. Geiger Counter . ... Fast Particles . ... Energy . As noted in the section on plasmas , gases conduct electricity only when some of their atoms are ionized, i.e. are split up into free electrons and ions . ... A Geiger Counter A "Geiger counter" usually contains a metal tube with a thin metal wire along its middle, the space in between them sealed off and filled with a suitable gas, and with the wire at about +1000 volts relative to the tube. ...

... Timeline . ... 10a. Particle Drift . ... 11a. Geiger Counter . ... Fast Particles . ... Energy . As noted in the section on plasmas , gases conduct electricity only when some of their atoms are ionized, i.e. are split up into free electrons and ions . ... A Geiger Counter A "Geiger counter" usually contains a metal tube with a thin metal wire along its middle, the space in between them sealed off and filled with a suitable gas, and with the wire at about +1000 volts relative to the tube. ...

... Container Widgets . ... Normally, Fixed widgets don't have their own X window. ... The following example illustrates how to use the Fixed Container . #include gtk/gtk.h /* I'm going to be lazy and use some global variables to * store the position of the widget within the fixed * container */ gint x = 50; gint y = 50; /* This callback function moves the button to a new position * in the Fixed container . */ void move_ button ( GtkWidget * widget , GtkWidget * ...

... This thread contains a step-by-step recipe to extract MOS spectra of a point-like source observed in Imaging mode and to create associated response matrices, starting from a calibrated, concatenated event list (either produced with emproc or available as PPS product; here it has the assumed file name MOS.fits ). ... The users should note that the SAS metatask xmmselect allows them to interactively define source and background regions (via ds9) and to run backscale on the fly. ...

... Files . ... File List . File Members . casa . Containers . ... National Radio Astronomy Observatory 00023 //# 520 Edgemont Road 00024 //# Charlottesville, VA 22903-2475 USA 00025 //# 00026 //# $Id: BlockIO.h 20739 2009-09-29 01:15:15Z Malte.Marquarding $ 00027 00028 #ifndef CASA _BLOCKIO_H 00029 #define CASA _BLOCKIO_H 00030 00031 #include casa /aips.h 00032 00033 //# Forward declarations. 00034 #include casa /iosfwd.h 00035 00036 namespace casa { //# NAMESPACE ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... Up: Real-Time Systems . ... The Rossi X-ray Timing Explorer ( RXTE ) spacecraft contains a large Proportional Counter Array (PCA) experiment which produces high count rates for many X-ray sources. ... This allows opportunity for some serious real time interpretation and decision making by the experiment controller, duty scientist, and Guest Observer (GO), if present. ... This paper briefly describes the available Science Monitoring subsystem display options. ...

... All STIS data products are FITS files. Images and two-dimensional spectroscopic data are stored in FITS image extension files, which can be directly manipulated, without conversion, in the IRAF/STSDAS environment. These FITS image extension files allow an associated set of STIS science exposures, processed through calibration as a single unit, to be packaged into a single file. ... A triplet of FITS image extensions corresponds to each exposure in a STIS data file: . ... array . ...

... This page contains "templates" for PmWiki's (:pagelist:) directive. ... page). (:if false:) [[#default]] (:template first {=$Group}:) :[[{=$Group}/]] /: (:template each:) : :[[{=$Group}/{=$Name}]] [[#defaultend]] (:ifend:) (:pagelist group={$Group} fmt=#default count=6:) . Site / . ... if false:) [[#count]] (:template defaults wrap=inline list=normal :) (:template last:) {$$PageCount} [[#countend]] (:ifend:) Number of pages in the {$Group} group: (:pagelist group={$Group} fmt=#count :). ...

... The association log contains a list of calibration products used to process a raw file (or a set of raw files). ... The header of the association log contains the name of the association block , a data type tag, a setup tag, and the flag COMPLETE or INCOMPLETE (in case of missing calibrations). ... FLAG: not relevant here (always REAL) . ... OK MCALIB REAL GI_PFEE_071012A_Medusa1_L543.1nm_o3.fits FF_EXTERRORS 0.458 OK MCALIB REAL GI_PDIS_071012A_Medusa1_L543.1nm_o3.fits DISPERSION_SOLUTION 0.462 . ...

USING THE CORRELATION BETWEEN ISGRI SURVEY RESULTS AND OTHER CATALOGUES TO AID SOURCE IDENTIFICATION John B. Stephen, A. Malizia and L. Bassani IASF-INAF, Via P. Gobetti 101, 40129 Bologna, ITALY, E-mail: stephen@iasfbo.inaf.it ABSTRACT In order to help in the identification of INTEGRAL/ISGRI sources, we have developed a software package which allows a rapid and detailed cross-correlation to be performed between various source catalogues. ... We show below some preliminary results from this analysis. ...