... HST . Changes in the STIS ETC . ... Data . ... HST Overview . ... Phase I Proposing . ... Retrieving HST Data . ... STIS Data Handbook . ... The latest release of the STIS spectroscopic ETC allows the user to select the dimension of the extraction box perpendicular to the dispersion for point-source calculations. ... Note that while the default pipeline extraction uses a 7 pixel high box for MAMA echelle and CCD modes, for 1st order MAMA modes and the NUV PRISM mode this value is 11 pixels. ...

Next: Semi-major axis change Up: Change of Binary Parameters: Previous: Change of Binary Parameters: . The mass of the star that loses matter is . Accordingly, the mass of the accreting star is . where is the accretion rate   of the captured matter. ... In the case of compact accretors, we require the rate of their mass increase to be limited by the accretion energy output equal to the critical Eddington luminosity   . ...

... Observatory . ... Science . ... Science Users Information > Science Publications > Science Announcements > Paranal Instrumentation Changes . ... Observing Facilities . La Silla Paranal Observatory . Paranal Facilities . La Silla Facilities . ... Instrumentation Development . Future Facilities and Development . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ...

... Galactic coordinates are not yet calculated, but this can change in the near future. Currently preference is given to small sources over extended sources if they are present near the same coordinates. ... More work has to be done on the error estimates of source parameters. Countrates are estimated assuming that the source shape is a gaussian. ... This means that for point-like source we can in future calibrate the true countrates versus the wavelet countrates, for small wavelet scales. ...

... Radar ranging experiments use the length of the pulse to determine the height resolution. ... A way around this is to transmit a coded pulse. ... If the changes are discreet then the time between changes is the baud length. The entire length of the pulse is called the code length. ... To extract the signal from code/signal combination you need to decode the received signal. ... If we assume that the Height value does not change much over 1 code length then the received signal can be written as: . ...

Next: Determining UV Variables and Up: UV Data Sets Previous: Variable Override . The uv i/o routines need to know what variables change simultaneously. all variables that have changes simultaneously. Conversely routine uvwrite assumes that all variables that change simultaneously with the variables that it writes, have already been written with routine uvputvr . ... For an input file, a call to uvnext causes the next set of variables (which change simultaneously) to be read. ...

... Return to the Kernel page . ... Kernel . ... This article is part of the LWN Porting Drivers to 2.6 series . One might be tempted to think that the basic task of keeping track of the time would not change that much from one kernel to the next. ... One change which shouldn't be problematic for most code is the change in the internal clock rate on the x86 architecture. In previous kernels, HZ was 100; in 2.6 it has been bumped up to 1000. ... Driver porting: Timekeeping changes . ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... Observing . ... space flight . ... Astronomy for Kids . ... Sky Events . ... Observing springtime deep-sky objects with a large telescope . ... Space scientists look at future Mars exploration . ... Planetary scientists have big ideas for studying Mars. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter...

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. ...

... 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. ...

The Australian Academy of Science is releasing The science of climate change: questions and answers and it is must reading no matter what your view is of Global Warming. It is a consensus overview by Australia's most expert climate scientists, overseen by the Academy, to explain what we know, and we do not know about anthropogenic climate change, and how we might mediate future changes. ... However, my own scientific opinions in my areas of expertise are consistent with their conclusions. ...

... Any water on Mars is locked up in the ice caps. ... The most recent successful mission to Mars is the Mars Science Laboratory better known as the Curiosity rover. ... CuriosityтАЩs primary role is to search for conditions that may have once been able to harbour any sort of bacterial life concealed beneath the Martian surface. ... Using what we know about life on Earth, where there is water, there is life, signs of water may help us understand what Mars was like billions of years ago. €а . ...

Changing a World . What did the students learn from all this? ... The students found this unsatisfactory -- some of them would not be able to fit another astronomy class into their schedules, but they wanted to know about our planetary neighbors, and this project gave them the opportunity to find out without spending valuable class time on the subject. ... The students also learned to learn for themselves, perhaps one of the most important milestones during formal education. ...

... Ближайшие семинары . Прошедшие семинары . ... Положение о семинаре . БЛИЖАЙШИЕ СЕМИНАРЫ . 15 марта 2016 г (вторник) . В.Н. Руденко (ГАИШ МГУ, ИЯИ РАН) . ... 04 февраля 2016 г (четверг) . О. Вайсберг (ИКИ РАН) . ... 28 января 2016 г (четверг) . Л.В. Ксанфомалити (ИКИ РАН) . ...

ALMA | ... Phase Correction Algorithms | ... On this page, we describe what the phase correction algorithms set out to do and the framework we have developed to optimally use all of the available information. ... We are developing a Bayesian framework to combine all the information we have about the current and future meterological conditions (which are naturally accommodated as priors in a Bayesian scheme) with detailed physical models of the atmosphere. ...

Apache 1.1 and earlier let modules handle POST and PUT requests by themselves. The module would, on its own, determine whether the request had an entity, how many bytes it was, and then called a function ( read_client_block ) to get the data. ... This step also sends a 100 Continue response to HTTP/1.1 clients, so should not be called until the module is *definitely* ready to read content. (otherwise, the point of the 100 response is defeated). ... Finally, call ap_get_client_block in a loop. ...

... Flipping the image . ... Thus, if you use -flip y on the command line and then load an image from IRAF, the image is not flipped by SAOtng. However, if the frame has already been flipped (either explicitly using a menu or by loading an image externally), subsequent display of images from IRAF images will be flipped in that frame. ... Release 1.5 supported a very kludgey way of displaying multiple images in the same frame, by allowing you to select a frame quadrant in which to load an image. ...

The C and TC shells have a number of local shell variables which are not exported to the environment. To make sure that these variables are picked up whenever a new shell is invoked, always define shell variables in your .cshrc ( .tcshrc ) file. By convention, names of shell variables are always given in lower case letters. UNIX is case sensitive, so the environment variable PATH is not the same as the shell variable "path". ... Setting shell variables . ...

Next: Scattering properties Up: Polarization properties (transmitted radiation) Previous: Linear polarization: wavelength dependence . Traditionally, the main problem considered in connection with circular interstellar polarization is the meaning of the wavelength where changes the sign . ... This is also demonstrated by Fig. 19 (lower panel) which shows the wavelength dependence of the factors of linear and circular polarization for particles of magnetite as was done by Shapiro ([ 1975 ]). ...

... B.1 New functionality . ... B.3 Semantic changes from CSS1 . ... CSS2 builds on CSS1 and all valid CSS1 style sheets are valid CSS2 style sheets. The changes between the CSS1 specification (see [CSS1] ) and this specification fall into three groups: new functionality, updated descriptions of CSS1 functionality, and changes to CSS1. ... Several internationalization features, including list numbering styles , support for bidirectional text , and support for language-sensitive quotation marks . ...