In this section we present plots which may be used to rapidly estimate signal-to-noise ratio (SNR) for point sources with stellar spectra observed through popular WFPC2 filters. ... Dotted lines across the top of each plot indicate the onset of saturation. ... We look at Figure A2.10 and find this value on the horizontal axis. ... This exposure is well below the saturation lines in the plot, so saturation is not a concern. ... 0.45 Figure A2.1: Point Source SNR vs. V+AB for F160BW Filter. ...

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• Appendix B: Point Source SNR Plots
• The Pixon and Bayesian Estimation
• Practical Validation of Results

My research interests are focussed on the theory and modelling of accretion processes as well as star and planet formation mechanisms. I am particularly interested in the stability properties of accretion discs, the generation of MHD turbulence and associated angular momentum transport, disk - planet interactions and the origin and characteristics of jets and winds from accreting systems . ... These results have been published in Salmeron & Wardle, 2005, M.N.R.A.S., 361: 45-69. ...

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The Chi-Square Goodness of Fit Statistic . This statistic enables us to test whether observed frequencies are close to . those we would expect. ... Expected frequencies . ... For example, if we . have an honest die we would expect 1/6 of all cases to show any of . ... So, for example, if we roll a die 60 times we would expect : . ... If we actually roll a die 60 times we wouldn't expect each of the faces . ... times each face actually comes up is the observed frequency for that face. ...

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• Trend Extrapolation

... My project was concerned closely with research, which in general went well. However it was difficult to find specific information relating to fossil fuel use and emission in the UK, though easy for the USA. This meant, at times, it was assumed that fossil fuel consumption in the USA and UK were roughly the same. It was also difficult to find on the Internet information about specific cities (e.g. Armagh), but by contacting a lighting engineer this information was obtained. ...

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... More recently, I have been concerned with observing masers located in the circumstellar shells generated by red giant stars in their mass-loss phase, and in what we can therefore learn about the late stages of stellar evolution. 100 mJy are now undetectable after ~12 years, aka the DEATH of an OH/IR star or its cyclical evolution back to a Mira variable. ... I find that this momentum flux is sufficient to support the largest observed rates of AGB mass-loss. last updated: 14 January 2015 . ...

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• a2621
• pointing

Next: Interpolation of binned gain Up: The Interpolation Process Previous: Averaging Antenna Gains with . ... The task gpbreak can be used to insert a `break-point' into the antenna gains table, which indicates to the software which applies the calibration, that interpolation across this point should not be performed. ... Inserting a break-point modifies the antenna gains table, and so it is only meaningfully performed after the antenna gains table has been determined. ... GPBREAK . ...

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• Determining Gains and Bandpass Functions - MFCAL
• Visibility Processing
• imdiff

Astronomy Discussion Forums . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... SETI Assumes ET Doesnot Care About Can Being Detected What If . ... Post Message | ... My search on how to go undetected in space and SETI Search for Extraterrestrial Intelligence SETI. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Let Me Be More Clear - an Astronomy Net Exploration Forum Message
• Astronomy articles, forums, listings, and other resources about Astronomy.

http://hea-www.harvard.edu/AstroStat/slog/2008/q-objectivity-frequentist/ Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/AstroStat/slog/2008/q-objectivity-frequentist/comment-page-1/#comment-794 vlk Mon, 13 Oct 2008 20:30:58 +0000 http://hea-www.harvard.edu/AstroStat/slog/?p=901#comment-794 Ah. ...

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• The AstroStat Slog 2007 November
• The AstroStat Slog Blog Archive [Q] Objectivity and Frequentist Statistics
• Vertical Structure of the Secondary: Hydrostatic Model

... Here you may find some shots taken in Moscow and (mostly) abroad. You will see sunny Tenerife Island and dark London streets, teeming with life Amsterdam and Chalkidiki in bloom, magnificent Kyoto shrines and dull Moscow photos. Not all photos which I have were digitized. ... The Netherlands (Amsterdam, Rotterdam, countryside). August 1994 . ... September 1994 . ... December 1994 . ... July 1997. ... August 1997. Over 200 photos. ... March 1998 . ... May 1998 . ... June 1998 . ...

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• Feature enhancement: pulsing
• Gaussian Chirplet
• Announcements of new WWW servers

... The Astronomical Data Analysis Software and Systems (ADASS) conference is held each year at a different hosting astronomical institution. The conference provides a forum for scientists and programmers concerned with algorithms, software and software systems employed in the acquisition, reduction, analysis, and dissemination of astronomical data. ... The 26th annual ADASS conference will be held from October 16th to 20th, 2016 at the Stazione Marittima Conference Centre , Trieste, Italy. ...

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• Heuristic Estimates of Weighted Binomial Statistics for Use in Detecting Rare
• Infrared Jitter Imaging Data Reduction: Algorithms and Implementation

... 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...

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• Advanced Design Laboratory Home Page
• A Method of Integrating

... We have assumed a constant in time star formation rate and the total number of stars in the Galaxy, , to be such that the total mass of the galaxy is ; assuming the Salpeter mass function   , we get . ... This number agrees with a standard estimation of the galactic star formation rate of order of per year. In each run of calculations, we trace the evolution of binaries with initial parameters randomly distributed according to the chosen initial laws. ...

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• Effect of sources evolution on
• Critical Frequencies and Gravitational Wave Detector Halfwidth for
• Number of accreting X-ray binaries of selected types

spaceweb@oulu.fi - last update: 28 May 1995, 0800 UT . Advanced plasma theories are extremely important when one tries to explain, for example, the various waves and instabilities found in the plasma environment. ... In the kinetic theory it is necessary to know only the distribution function for the system of particles. ... The dependence of the distribution function on the independent variables r , v , and t is governed by an equation known as the Boltzmann equation . ... Hot plasma theory . ...

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• Uranus' New Moons
• Lagrangian Points

... Eclipse Shirt . ... The most detailed images ever taken of Tethys were captured late last month as the robot Cassini spacecraft swooped past the frozen ice moon. NGC 869 and NGC 884: A Double Open Cluster . ... Of course, on October 3rd an added attraction was the Moon - seen in dramatic silhouette during an annular solar eclipse. ... The event was not a total eclipse of the Sun for any Earth-bound sky enthusiast but rather, at best, an annular eclipse, where the Moon blocked most of the Sun. ...

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... Parameter . ... bool . ... If set odfcheck will assume that the user has already run cifbuild and odfingest , and that the relevant environment variables have been set. ... yes . If set odfcheck will run the attitude diagnostics on the current ODF. allowedbadattitudefraction . ... real . ... If set odfcheck will run the time correlation diagnostics on the current ODF. tcpinterval . ... If set odfcheck will run the telemetry loss diagnostics on the current ODF. allowedtelemetrylossfraction . ...

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• Examples
• SAS startup thread
• Angle conventions

... Column (1): Source name from NED. ... Column (8): Log star formation rate, from SDSS. {\it Detected sources:} (1) (2) (3) (4) (5) (6) (7) IC0159 0.58±0.10 8.31 ± 0.07 8.25 ± 0.07 9.55 9.70 8.89 -0.06 UGC2004 5.98±0.65 9.32 ± 0.04 9.03 ± 0.04 9.83 9.61 9.15 0.36 NGC1234 0.24±0.06 7.92 ± 0.09 7.80 ± 0.09 9.67 9.58 8.98 -0.68 2MASJ0839+03 2.30±0.54 8.91 ± 0.09 8.69 ± 0.09 --- 9.94 9.08 0.58 2MASJ0846+02 2.75±0.47 8.98 ± 0.07 8.85 ± 0.07 --- 9.84 8.99 ...

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• http://www.mrao.cam.ac.uk/~kjbg1/exams/2009_paper.pdf
• http://www.mrao.cam.ac.uk/~anthony/latex/Dubrovskiy.ps
• http://www.mrao.cam.ac.uk/~kjbg1/exams/2008_paper.pdf

... In this context, (or, in the time domain, l ) are no longer independent variables. They are treated like any of the other parameters: i.e. are assumed to be random variables to be estimated from the observations by fitting a model. ... The MIDAS TSA package contains just one such model, namely Fourier series (SINEFIT/TSA) . ... In the time domain, the most important parameters to be estimated from the data are the correlation length of and time lag between the input signals. ...

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• Devices
• Current star formation rate
• The Wiener-like filtering in the wavelet space

. To send one file from the local host to the remote host you can use either the send or the put command. To send multiple files to the the remote host use the mput command. Files to be sent are assumed to be in your current directory unless you specify otherwise. Files will be placed in your current directory on the remote host unless you specify otherwise. Examples . Problems? . Did You Know? .

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• Getting files from a remote host

... ARC 3.5m | Weather Closure Conditions . The enclosure will be closed by the Observing Specialist under the following conditions. ... This policy will be consulted whenever there are questions or disagreements concerning closure of the APO 3.5-meter telescope due to hazardous conditions or situations, at times when telescope operations are being overseen by an APO Observing Specialist. ... the on-duty Observing Specialist has full responsibility, and sole authority, to make this decision. ...

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• APO Telescope Documentation
• Large Capacity Archival Data Storage
• Telescope Tracking Smoothness

... They are concerned with Attitude Control System of the spacecraft, satellite visibility from tracking stations, limits on the satellite autonomous operations during the orbit, and needs for auxiliary operations with the spacecraft. ... Among the operational constraints the most important one is the number of programmed slews per orbit, which determines the maximum number of radio sources to be observed during one orbit. ... System temperature (K) . ... Progress of the RadioAstron Project in Pictures...

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• Laboratory Information and Navigation System to Radioastron
• Theoretical Astrophysics Department