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1. http://www.stsci.edu/documents/dhb/webvol2/c16_hspcalib.fm3.html
... Computing the true count rates for digital data. ... The following equation is used to find the count rate. x = ( raw counts / sample time ) . ... True count rates for digital data are corrected by using the first equation for a point source and the second for an extended source. a = ( y - pre_amp - darkrate ) / ( highvolt x pt_effic ) . ... True photocurrents (count rates for analog data) are corrected by the first equation for point sources and the second equation for extended sources. ...
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Ссылки http://www.stsci.edu/documents/dhb/webvol2/c16_hspcalib.fm3.html -- 7.2 Кб -- 10.02.1998
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2. http://xmm.vilspa.esa.es/sas/5.4.1/doc/rgsrmfgen/ChangeLog
ChangeLog for rgsrmfgen =============================== Version 0.50.2 - 2002-02-12 ( JDR ) -------------- - task description updated with correct default for the --ebins parameter Version 0.50.1 - 2002-01-17 ( JDR ) -------------- - supports arbitrary energy selection regions - bug fix: does not rely on implicit initialization of global variables Version 0.50 - 2002-01-16 ( JDR ) ------------ - changed default to --ebins=4000 Version 0.49 - 2001-10-10 ( ...
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Ссылки http://xmm.vilspa.esa.es/sas/5.4.1/doc/rgsrmfgen/ChangeLog -- 8.8 Кб -- 12.02.2002
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3. Australia Telescope National Facility
... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...
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Ссылки http://www.atnf.csiro.au/whats_on/workshops/synthesis2003/talks/sensitivity/tant.html -- 50.4 Кб -- 12.04.2016
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4. Sky background definition
Next: Order Extraction Up: Background Definition Previous: Background estimate by . ... The sky background component can be measured in spectra taken with an extended slit using the two commands DEFINE/SKY and EXTRACT/SKY . ... The command EXTRACT/ECHELLE performs an average extraction of the sky background using these offsets, optionally fiters for cosmics, and provides an extracted spectrum in a format similar to the one resulting from EXTRACT/ECHELLE . ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node157.html -- 3.2 Кб -- 23.02.1996
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5. http://www.naic.edu/~astro/School/Talks/salter_meas.pdf
The NAI C-NRAO School on Sin gle-Dish Radio Astronomy Techniques and Applica tions -- July 2005 Accuracy in Radio Astronomy · Pulsar Periods: 1 part in 1012 · HI Redshifts: For z 0.1, about 1 part in 104 · Source Intensities and Polarization Parameters: Typicall y ±10% The Measurement Process with Fully-Filled Apertures Chris Salter (NAIC) Basic Definitions A: Intensit y/Surface Brightne ss: B: ... Fear of positive feedback causing receiver oscillations. ...
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Ссылки http://www.naic.edu/~astro/School/Talks/salter_meas.pdf -- 1354.4 Кб -- 12.07.2005
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6. Parameters of the 41 Dra system components
Find Similar Abstracts (with default settings below ) . ... Also-Read Articles . ... Parameters of the 41 Dra system components . ... 00/2001 . ... Stars: Binaries, Binaries: Fundamental Parameters, Binaries: Individual . ... 61B Based on spectral and speckle-interferometric observations of the system 41 Dra, model atmosphere parameters of the system components have been derived: component Aa - T eff = 6500K, lg g = 3.99, R = 1.87 R solar , component Ab - T eff = 6500K, lg g = 4.11, R = 1.61 R solar . ...
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Ссылки http://mavr.sao.ru/hq/balega/PUBL_BAL/PUB_2001/bal_1_2003.html -- 9.3 Кб -- 28.12.2007
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/balega/PUBL_BAL/PUB_2001/bal_1_2003.html -- 9.3 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/balega/PUBL_BAL/PUB_2001/bal_1_2003.html -- 9.3 Кб -- 02.10.2012
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/balega/PUBL_BAL/PUB_2001/bal_1_2003.html -- 9.3 Кб -- 02.10.2012
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/balega/PUBL_BAL/PUB_2001/bal_1_2003.html -- 9.3 Кб -- 02.10.2012
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7. Initial Distributions of Binary Parameters
Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...
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Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node39.html -- 14.1 Кб -- 26.02.1997