... Stellar Evolution . Nucleosynthesis in Stars . The Evolution of Star Clusters . JAVA Physics Lab . Alternative Energies Class . Steve Kevan's Physics 251 Class . ... Talk on Solid State Physics of CCD detectors . Talk on Cosmological Issues . ... Digital Spectra of Stars . NETexperts E-mail List . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu ...

... AstroAsciiData is a Python module to handle ASCII tables. ... The idea to develop this Python module emerged from the fact that ASCII tables continue to be one of the most popular and widely used data exchange formats in astronomy and probably science in general. ... To load this ASCII table, go into Python, load the AstroAsciiData module and read in the table with: . ... demo = asciidata.open('webexa.txt') . ... Users who only want to work with ASCII tables neeed no further python modules. ...

... Let us assume that table OBSERVP.tbl contains observations of a periodic phenomenon. ... SET/CONTEXT TSA ! Enable TSA package . NORMALIZE/TSA OBSERVP :VALUE ! ... BAND/TSA OBSERVP ! ... Inspect corresponding settings . POWER/TSA OBSERVP POWERSPEC ! Compute power spectrum and . ... PLOT/ROW POWERSPEC ! ... PLOT/ROW AOVSPEC ! ... POWER/TSA ? LINESPEC 20 .01 501 ! Compute detail of power spec. PLOT/ROW LINESPEC ! ... WIDTH/TSA LINESPEC ! ... SINEFIT/TSA OBSERVP CLNOBS 23 1 ! ...

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... Posts tagged ?test? ... Continue reading ?[ ... Category: arXiv , Astro , Cross-Cultural , Frequentist , Methods , News , Quotes , Stat , Uncertainty | ... Since I start reading arxiv/astro-ph abstracts and a few relevant papers about a month ago, so often I see chi-square something as an optimization or statistical inference tool. Chi-square function, chi-square statistics, chi-square goodness-of-fit test are the words that serve different data analysis purposes but under the same prefix. ...

... Meta Index / Home Page / Usage and Examples To correct for bad pixels and bad columns (section 7.10 ) a file containing the bad pixel extensions must be specified on the command line by: . ... By default the code looks for pixels which fall outside the CCD collecting area and outside the field-of-view with a resolution of 2 arcseconds. ... arfgen spectrumset=spectrum.ds badpixlocation=myevents.ds badpixelresolution=1.0 which improves the accuracy of the bad pixel calculation. ...

... We describe a tool in the PCIPS environment for finishing the job of globular cluster photometry started by DAOPHOT II: starting with the instrumental magnitudes derived by DAOPHOT II, DASHA can automatically produce final color-magnitude diagrams. ... DASHA can automate the whole process of globular cluster photometry, from instrumental magnitude lists produced by DAOPHOT II, to final color-magnitude diagrams. ... DASHA is oriented towards star lists produced by DAOPHOT II as source data. ...

... NGC 6791: An Old, Large Open Cluster . ... Credit Copyright: Barbara J. Mochejska ( CAMK ) et al., 2.1-m Telescope , KPNO , NOAO , NSF Explanation: NGC 6791 is one of the oldest and largest open clusters of stars known. ... Open star cluster NGC 6791 , however, contains thousands of stars recently measured to be about 8 billion years old. ... This enigma makes NGC 6791, pictured above , one of the most studied open clusters and a possible example of how stars might evolve in the centers of galaxies....

... Catalog MyDir 6 Catalog Class? Data Dictionary Record for Catalog ­ {} · · · · · Set keys/fields to store in Catalog records Store the Catalog record in a file Retrieve a Catalog record from a file Set format for formatting Catalog records Send a formatted Catalog record to a file or printer Database Functions · dbtools.py ­ use with sql flat files. · ...