... The WFPC2 CCDs have a small b ut significant charge transfer efficiency (CTE) problem which causes some signal to be lost when charge is transferred down the chip during readout. This has the effect of making objects at higher row numbers (more charge transfers) appear fainter than they would if they were at low row numbers. The effect depends on the temperature of the CCDs. ... It is also possible that proportional losses for fainter stars, at least with no background, may be larger. ...

Here are a set of pictures which progress from the original through a couple intermediary images to the final, rather 60ish looking final image. This is the original image, created using some PD fonts and some mucking around with the BCG plug-in. The original logo has been extruded a bit using the displace plug-in. A web is created by using the wave plug-in, duplicating it and rotating it 180 degrees, and adding the two pieces together. The original logo is then placed over that. ...

... GTK's rc Files . ... pixmap_path "<dir 1>:<dir 2>:<dir 3>:..." # pixmap_path "/usr/include/X11R6/pixmaps:/home/imain/pixmaps" # # style <name> [= <name>] # { # <option> # } # # widget <widget_set> style <style_name> # widget_class <widget_class_set> style <style_name> # Here is a list of all the possible states. ... NORMAL - The normal state of a widget, without the mouse over top of # it, and not being pressed, etc. ... This sets a style called "button". ... GtkButton*" style "main_button" . ...

... Next: Cheating Poisson: A Up: Statistical Analysis Previous: Spatial Models and . ... The spatial distribution of stars in the Local Group dwarf irregular galaxy NGC 6822 has been studied, using recent positions and deep photometry for about 15,000 stars in the galaxy. Based on photometrical data, OB stars and red stars could be studied separately. Spatial statistical tools have been applied to the analysis of the spatial structure. ... Figure: Model selection by the aid of CAIC . ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

... It is possible to change the meaning of keywords (to `overload' them), but it can be confusing, primarily because your new commands may not behave the same way that this manual claims. ... If you said box in your macro, then overloaded the keyword, you'd have a macro that called itself. ... Another example is that (when overloaded) lines saves the line numbers used, so that you can write a macro to print the top 10 lines of a file (it's called head ). ...

Imagine that you are doing particle physics experiments. You fire a beam of sub-atomic particles of mass 4.0x10 -24 kg into your detector at a speed of 100 m/s. Most pass straight through undeflected, but one of them came out with its mass reduced to 3.0x10 -24 kg, its speed reduced to 80 m/s, and in a direction which was deflected by 2.4 degrees from its original path. You think that it must have ejected a particle of mass 1.0x10 -24 kg. ...

This diagram illustrates the effects of floating a box ("inner") and how its "sibling" flows alongside it. ... Since the "inner" box has been floated to the right, all other text flows around it, including that of the "sibling" box (on lines 1 through 5). ... Vertical bars represent the left edge of the floated box. The lines, as they appear in the image, contain: 1 Beginning of body contents. ... Inner 3 Sibling contents. ... contents. 4 of outer contents. ... Inner contents" is blue. ...

... Doug's Home Page . ... In the examples below we show a number of ways that data can be moved back and forth between S-Lang and Perl . ... Source code typeof : "undef"; __END__ __SLang__ variable foo = Any_Type [3]; foo[0] = "a string"; foo[1] = 23; define getfoo(x) { return foo[x]; } message( "In S-Lang:" ); vmessage( "typeof(foo[0]) = %s", string(typeof(foo[0])) ); vmessage( "typeof(foo[1]) = %s", string(typeof(foo[1])) ); vmessage( "typeof(foo[2]) = %s", string(typeof(foo[2])) ); . ...

LIGO-G020051-00-Z Isabel Leonor (w/ Robert Schofield) University of Oregon LIGO Reduced Data Sets E7 standard reduced data set RDS generation for future runs decimation examples Standard RDS ­ Guidance from LSC White Paper Data set levels outlined in LSC white paper: Level 0: Full IFO data stream (not archived) Level 1: Archived reduced data set · all important IFO and PEM channels · used principally for detector diagnostics Level 2: IFO strain and ...

... The v1 equivalent is also given. Hydrogen line profiles and equivalent widths . ... Elemental abundances from line equivalent widths . ... Synthetic spectra over substantial wavelength intervals . ... For a given model atmosphere, the user may either define a new wavelength grid, given a linelist, or may use a previously defined wavelength grid and linelist. In the original version (MODE=10) the newly-generated grid assumes solar abundances for all species. ...

... A Colorful Lunar Corona . 14.06.2015 . ... The effect is created by the quantum mechanical diffraction of light around individual, similarly-sized water droplets in an intervening but mostly-transparent cloud. M101: The Pinwheel Galaxy . ... Shortly before Mars' June 2015 conjunction, the Curiosity Rover celebrated 1000 sols on the red planet. ... The Medusa Nebula . ... Fly Over Dwarf Planet Ceres . ... Galaxy NGC 7714 After Collision . ... NGC 3132: The Eight Burst Nebula . ... 2015 2016 . ...

... Get used to using the mouse and its buttons for such tasks. Figure out the function of each of the three mouse buttons. ... Fire up textedit application and practice editing text files. ... Figure out basic options like cut and paste of text around the file, saving and loading files, searching for strings in the text and replacing strings. ... Familiarise yourself with other UNIX functions by creating various files of text etc. and trying out the various functions listed in handouts. ...

On' failures in the NIRSpec MEMS ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST NIRSpec Santiago Arribas, Robert Fosbury Peter Jakobsen --1-- ST-ECF Instrument Science Report NGST 2002-02 The effects of `on' failures in a MEMS array for the NGST ... Assuming that the spectrum of a single facet uses 2000 detector pixels, only 0.01% of `on' failures is acceptable (i.e., 400 facets in a 2k в 2K MEMS array). ...

... To overlay the sourcelist srclist.ds generated previously by eboxdetect on an image image.ds the following command can be used: . srcdisplay imageset=image.ds boxlistset=srclist.ds . ... To overlay circles of radius 0.01 degrees, use the following: . srcdisplay imageset=image.ds boxlistset=srclist.ds sourceradius=0.01 . ... srcdisplay imageset=image.ds boxlistset=srclist.ds sourceradius=0.01 withregionfile=true regionfile=regions.txt . ...

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

... self-absorption - the absorption of light shining on an object by a process similar to that which produced the light originally; if a cloud emits less light than it absorbs from other clouds behind it, this net loss of light, termed self-absorption , causes the foreground cloud to appear darker than the background field (the term is from spectroscopy, where small absorption dips sometimes occur in larger emission lines, making the latter look as if it is absorbing part of itself) . ... HISA Main ...

Turning the Camera Skyward . A reconfigured camera can take wide-field exposures of astronomical objects (constellations, the Milky Way, zodiacal light, moving artificial satellites, meteor showers, variable stars, etc.) to reveal much fainter objects and structures than seen by naked eye. ... This picture reveals objects more than 2.5 times fainter than can be seen by the naked eye, including not only stars but also the Orion nebula (M42), where new stars are being born. ...

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

SAI, graduates year 1982. ... Note: when just a 7-digit phone number is shown, it refers to a phone located in Moscow (international access 007-495). "+" in front of a number means that you must dial an international access code first (or just press "+" on your mobile phone keypad). ... 939-1672(work); . ... Ataev Sasha . 1-(703)-536-8881(home) (USA); . ... Bychkov Sergey . ... 1-(410)-740-8205(home), +1-(301)-286-2150(work) (USA); . ... 1-(412)-767-0332(home), +1-(412)-608-9339(mobile) (USA); . ...