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1. Fit a source with a small number of net counts
Next: Inspection of results Up: *fit* - Fit Data Previous: Verbose Mode . If the number of net counts for a source is less than it is impractical to fit the data in all 34 energy bits. However, if the flux is required, then a fit must be performed first. ... Fit will then calculate the normalization of the model and xflux can be used to determine the flux and luminosity of the source from the best fit model. xs> fit rebin=yes . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/PROS/PUG/node153.html -- 3.9 Кб -- 01.10.2012
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2. Number of accreting X-ray binaries of selected types
... The numbers of three types of compact binaries containing accreting NSs and BHs, which are most interesting from the point of view of their observational appearances, have been calculated as a function of time: i) X-ray transient source containing a NS in an eccentric orbit around a main sequence Be-star (the observed prototype: A0535+26), ii) BH The evolution of the selected types of X-ray binaries during the first 10 million years after the starburst onset is presented in Fig. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~polar/html/publications/apj/node8.html -- 5.9 Кб -- 21.06.1996
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3. http://www.atnf.csiro.au/computing/software/gipsy/sub/printusing.dc2
Function: PRINTUSING Purpose: Print numbers using a format image File: printusing.c Author: M. Vogelaar Use: INTEGER PRINTUSING( FORMAT , input CHARACTER ARRAY NUMBER , input DOUBLE PRECISION RESULT ) output CHARACTER ARRAY PRINTUSING Field width in format FORMAT String containing format image NUMBER Number to be formatted RESULT String containing formatted number Description: PRINTUSING is used to print double precision numbers in an user specified format. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/gipsy/sub/printusing.dc2 -- 6.8 Кб -- 28.09.1992
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4. JavaScript Random Number Tester
Minimum: 0; Average: 47; Maximum: 99 . Results divisible by: . 2: 52%, 3: 33%, 4: 25%, 5: 21%, 6: 18%, 7: 14%, 8: 12%, 9: 13%, . Range . Graph . Pct  . Count . 10 . 6 . 25 . 20 . 11 . 43 . 30 . 11 . 42 . 40 . 12 . 46 . 50 . 9 . 35 . 60 . 12 . 47 . 70 . 11 . 42 . 80 . 8 . 31 . 90 . 8 . 32 . 100 . 11 . 42 .
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/~megera/tips/randtest.htm -- 3.4 Кб -- 20.08.1996
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5. Bias-Free Parameter Estimation with Few Counts, by Iterative Chi-Squared
... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/kearnsk.html -- 12.3 Кб -- 03.11.2000
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6. Identities
... Some equations, identities or formulas contain small quantities , and these can be made much simpler and easier to use by sacrificing a little accuracy. ... When we derive squares, 3rd powers, 4th powers etc. of numbers larger than 1 , the results are always bigger , while for numbers smaller than 1 , the results are always smaller . ... power . ... number . ... The above also holds for negative numbers, if one understands "bigger" and "smaller" to refer to the absolute value (the value without sign...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/STARGAZE/Salgeb5.htm -- 10.8 Кб -- 21.12.2007
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7. Model realization and some results
... The perceptron structure, on the basis of which the database is built, is defined by a number of the input and output parameters and a required accuracy. ... The output perceptron data are the expansion coefficients of the scattering matrix elements in series of the generalized spherical functions. ... As the cluster structure depends on the generation conditions the expansion coefficients were averaged over 5--7 realizations of the clusters (for N . ... is the coefficient number. ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/DOP/A-PERC/PAPER2/node4.html -- 10.8 Кб -- 19.11.2010
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8. Identities
... Some equations, identities or formulas contain small quantities , and these can be made much simpler and easier to use by sacrificing a little accuracy. ... When we derive squares, 3rd powers, 4th powers etc. of numbers larger than 1 , the results are always bigger , while for numbers smaller than 1 , the results are always smaller . ... power . ... number . ... The above also holds for negative numbers, if one understands "bigger" and "smaller" to refer to the absolute value (the value without sign...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Ialgeb5.htm -- 11.0 Кб -- 09.04.2004
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/mirrors/stern/stargaze/Ialgeb5.htm -- 11.0 Кб -- 22.12.2007
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9. HyperLEDA documentation: parameter: pgc
All the objects in the database, galaxies, stars, clusters, ..., are indexed with their pgc number. Historically, the pgc numbering was created to unify the names of the galaxies when the database project started in 1983. ... Still, all the objects in the database (about 5 millions) have a pgc number which is used as a unique identification across the different tables. This number should not be used to build a name , since it would not be recognized by any database, including HyperLeda. ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/fetch/HL/leda/param/pgc.html -- 3.5 Кб -- 23.12.2013
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10. SSAU expects to double the number of enrolled foreign students
... This year SSAU provides 1429 state-funded places for admission in all kinds and directions of educational programs. ... In addition, SSAU Admission Committee notes the substantial increase in interest from the foreign applicants this year. The number of applications from foreign countries has already surpassed last year's totals - 76 applications. Based on the experience of admission campaigns of previous years, SSAU expects summer 2014 to enrol about 150 foreign students in the university. ...
[ Сохраненная копия ]  Ссылки http://www.ssau.ru/engnews/10699-SSAU-expects-to-double-the-number-of-enrolled-foreign-students/ -- 26.1 Кб -- 20.06.2014
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11. (Untitled)
... They were determined as a result of orbit improving on the base of all kinds of optical observations available in the catalog of observations of the Minor Planet Center on March 16, 2014 (radar observations have not been used at this stage). ... As the MPC orbits do not all were improved simultaneously with EMP orbits, only 383866 sets of elements were used for data comparison (for selected sets of elements process of improvement had started with the use of the same observations). ...
[ Сохраненная копия ]  Ссылки http://www.ipa.nw.ru/PAGE/FUNDAMENTAL/LSBSS/winample_guide/user4dpi.htm -- 12.5 Кб -- 10.04.2016
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12. Stellar Photometry
... In order to obtain a quantitative estimate of the accuracy and reliability of our data reduction procedures and results, we have performed a data reduction pipeline based on the following steps: i) define a set of simulated HST-like images with synthetic globular cluster stellar distributions, which provide the ``true'' data for comparison; ii) convolve these images with appropriate assumptions of PSF and noise in order to construct simulated `` observed '' ... It contains 470 stars. b) ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/stsci/meetings/irw/proceeding