... 2011 December 30 . The Diner at the Center of the Galaxy . ... Explanation: The monster at the center of our Galaxy is about to get fed . Recent observations by the Very Large Telescopes indicate that a cloud of gas will venture too close to the supermassive black hole at the Galactic center. The gas cloud is being disrupted, stretched out, heated up, and some of it is expected to fall into the black hole over the next two years. ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: December 31, 1997 - NGC 5307: A Symmetric Planetary Nebula
• APOD: 2003 December 20 - The Flight of Helios
• APOD: 2011 December 15 - The Umbra of Earth

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

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• AIRY: Astronomical Image Restoration in interferometrY
• Parallelization of Widefield Imaging in AIPS++
• CAOS Simulation Package 3.0: an IDL-based Tool for Adaptive Optics Systems

... 2000 December 15 . IC443's Neutron Star . ... Explanation: Using x-ray data from the orbiting Chandra Observatory along with radio data from the Very Large Array , a team of researchers has discovered evidence for a new example of one of the most bizarre objects known to modern astrophysics -- a neutron star . ... The core collapsed when the star, located a reassuring 5,000 light-years away in the constellation Gemini , exploded long ago. How long ago? ... About APOD | ... NASA Technical Rep.: ...

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• APOD: 2000 December 20 - Sgr A: Fast Stars Near the Galactic Center
• APOD: December 30, 1998 - Supernova 1994D and the Unexpected Universe
• mod_example - Apache HTTP Server

... specadd creates a multiple X-ray spectrum FITS file by stacking or putting together (``adding'') two single spectrum files. ... This type of spectral files is particularly useful when the user wants to simultaneously analyse different observations of the same object carried out with the same instrument or with different instruments. ... The Data extension for a multiple spectral dataset stores one single spectrum per row, instead of one channel per row as it is the case of single spectrum files. ...

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• Smoothing from an adaptive template

... We received the SASS output for the HRI observation of 3C 120 (a highly variable radio galaxy with a prominent jet leaving the core at PA ) and smoothed the data with a Gaussian of FWHM = 3 '' ( Figure 13.1 ). ... The results are shown in Figure 13.2 . ... The FWHM of the original data ( Figure 13.1 ) is 11.8 (PA ); after dewobbling ( Figure 13.2 ) the width of the 50% contour is 7.6 . ... Figure 13.1 : The original data, smoothed with a Gaussian of FWHM = 3 . ...

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• An example of a typical timing analysis
• The AstroStat Slog Blog Archive [MADS] Chernoff face
• The AstroStat Slog 2010 December

... HST . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... FUV HV History . ... COS Data Handbook . ... December 2010 +--------------------------------------------------------+ In this Newsletter we provide information on the changes to the COS pulse height filtering, the effects of gain sag on dispersed light target acquisitions for COS, COS airglow Observations, Reference file updates mailing lists for both COS and STIS, and the delivery of a new FUV bad pixel table for STIS. ...

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• HST Primer for Cycle 22
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Next: IPCS observations and data Up: Spectral survey of Case Previous: The sample description . The observations were carried out with the 6m telescope of the Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) in the period from December 1992 to October 1996. ... 1986 ]). Since January 1996 we used for registration Tektronix CCD 1024 1024 provided by Astrophysical Institute Potsdam (AIP, Germany) in the frame of mutual cooperation between AIP and SAO RAS. ...

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• Period analysis
• Observations
• Adaptive filtering from the wavelet transform

Astroinformatics Heidelberg Institute for Theoretical Studies Solving Regression Problems with Machine Learning lessons learned from learning machines no w op wi tim th m od ize GP el d U s December 12, 2013 Astroinformatics 2013 | Sydney 9-13 Dezember | ... 2013 December 12, 2013 Astroinformatics 2013 | ... 2014 December 12, 2013 Astroinformatics 2013 | ... Kai Lars Polsterer ... ... optimized for machine learning 12 / 13 thanks for a great week in Sydney December 12, 2013 Astroinformatics 2013 | ...

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• A Program Example
• Self-Calibrating with Multiple Models
• msconcat (Measurement Concatenation Utility) CentralProcessor 0.11...

This diagram shows an example of which borders would be rendered in the collapsing borders model where borders of different styles, widths, or colors overlap. ... The table has a 5px solid yellow border. The first column has a 3px solid black border, so the column's left border is obscured by the table's left border. ... The sixth cell (row tow, column three) has a 5px solid green border that obscures the fifth cell's right border where they overlap and the table's right border where they overlap. ...

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• Long description of example illustrating a table of travel expenses
• Introduction
• Long description for example of clipping region

... NGC 253: X Ray Zoom . 7.06.2001 . Astronomers now report that Chandra X-ray Observatory observations of galaxies known to be frantically forming stars show that these galaxies also contain luminous x-ray sources -- thought to be intermediate mass black holes and immense clouds of superheated gas. ... From September 2000 through March 2001, astronomer Tunc Tezel patiently photographed the planet Venus on 25 different dates as it wandered through the evening twilight. ... Working in Space . ...

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... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

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... As part of the Great Observatories Origins Deep Survey ( GOODS ), multi-object, optical to NIR spectroscopy in the Chandra Deep Field South (CDF-S) has been carried out, using the FORS2 instrument mounted at the Kueyen Unit Telescope of the VLT at ESO's Cerro Paranal Observatory, Chile. ... In this release we provide the full set of extracted 1-dimensional fits spectra in the GOODS/FORS2 survey (LP170.A-0788) and associated spectral previews and colour image cutouts (5"x5") for each target. ...

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• ESO - Historic examples of ESO-developed technologies
• ESO - Real Time Control for Adaptive Optics Workshop
• ESO - aoscience03

INTEGRAL observations of SS433 : new results Anatol Cherepashchuk Sternberg Astronomical Institute, Moscow University, Russia In collaboration with: Rashid Sunyaev ... Eleonora Antokhina, Nikolai Shakura, Darja Kosenko, Elena Seifina,Sergey Molkov (IKI) 1 Overview · Introduction · · · · Observations Analysis of hard X-ray spectra Analysis of hard X-ray eclipses Discussion and conclusions December 26, 2007 ...

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• http://hea.iki.rssi.ru/conf/hea2010/Presentations/24/Shakura.pdf
• http://hea.iki.rssi.ru/Z-90/arc/Program.doc
• Fast search through RTT150 data archive

Next: Results & Discussion Up: Coronal Hole Diagnostics out Previous: Introduction . ... The dates of the observations discussed here, their locations, pointing, slit sizes and exposure times are given in BTDW. ... Line fits are given by the dotted line. ... An estimation of the errors in the derived parameters was obtained using the GA-derived parameters as an input for a ``classical'' IDL-CURVEFIT procedure (Peter, 1999; Peter & Judge, 1999). ...

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• Armagh Observatory
• More photos of the 1 December events | International Year of Astronomy in
• sfit help file

Different backends are supported by CIMA depending on the selected receiver and observation type (spectral line or pulsar). CIMA has traditionally supported two backends: the interim correlator for spectral line single-pixel receiver observations and the WAPPs for any kind of observation. The WAPPs behave quite differently in spectral line and in pulsar mode, with the differences being so big that the observer has to select which type of obsercvation already at start-up of CIMA. ...

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• Example Observing Projects
• Making Maps: Example + Animation
• The Arecibo User Manual for Astronomers

Here are various colour wedges that illustrate some of the colour schemes possible with `cubehelix' (together with files for use in ds9 or kvis). the `default' scheme: . ds9 or kvis . with different start colours: . ... with different hue values: . ... with different rotations: . ... rotating the other way around: . ... no colour rotation: . ... different gammas: . ... go to: cubehelix page . ...

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• Example of an OOF analysis for the GBT
• Example of an OOF analysis for the GBT Bojan Nikolic web pages (r. 329)
• Computing dispersive atmospheric delay with AATM Bojan Nikolic web pages (r.

... Activity 3: Measuring the Position of the Sun in the Sky . Purpose: To give students the opportunity to measure the position of the Sun in the sky using simple tools and methods. ... Alternatively, you may have students devise their own methods of relative measurement and apply them to measuring the position of the Sun in the sky. ... Rangi is the sky, and when the Sun is near Rangi's head it is summer in New Zealand. ... Read the Maori story to students. ... back to Teachers' Newsletter Main Page ...

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• ASP: An Ancient Universe - Changes in the Universe
• ASP: Guest Observer
• ASP: The Story of Astronomy

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Field-aligned potential drops [Oulu]
• Adaptive Filtration of Electromagnetic Fields
• Dayside aurora [Oulu]

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

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• Main research and development work completed in 2009 and ready for
• Main results of the experimental and theoretical research completed in 2009
• The Second Announcement

. To use a different printer: lpr -Pps9 paper.ps . This sends the file paper.ps to the printer ps9 .

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• Using a different printer
• Examples of using the sort command
• Examples of copying files between remote hosts