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1. 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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2. http://hea-www.harvard.edu/AstroStat/astro193/VLK_slides_Feb4.pdf
... What is R? · · Statistical computing environment programmable/scriptable C-like language (similar to matlab, IDL) Huge number of analysis packages, written for and by statisticians · · Where to get it from? · http ://www.r-project.org/ Recommended reading: Tutorial on AstroStatistics and R http ://hea-www.harvard.edu/AstroStat/Tutorial2014/ Some functionalities of R arithmetic linear algebra bootstrap resampling empirical distribution tests exploratory data ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/AstroStat/astro193/VLK_slides_Feb4.pdf -- 299.6 Кб -- 04.02.2015
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3. Time series analysis in the frequency domain
Next: Analysis in the Up: MIDAS utilities for Previous: Fourier analysis . For the detection of smooth signals, e.g. sinusoids, use either SCARGLE/TSA or AOV/TSA with bins. ... SCARGLE/TSA -- . Scargle sine model: This command computes Scargle's (1982) periodogram for unevenly spaced observations x . ... In this way, the command can be used to perform a CLEAN-like analysis manually by removing individual oscillations one by one in the time domain (see Roberts et al. ... AOV/TSA -- . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/95NOV/vol2/node242.html -- 10.2 Кб -- 23.02.1996
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4. ArtistтАЩs impression of the expected dark matter distribution around the Milky
.
[ Сохраненная копия ]  Ссылки http://www.eso.org/public/images/eso1217b/zoomable/ -- 1.9 Кб -- 12.04.2016
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5. Parameters
... Default . ... The descriptions below focus on the meaning of each filename parameter, leaving the exact details of the inferred default value to be explained in the algorithm section. evlist . ... file . The response matrix file (OGIP-compliant format). ... If a spectrum file is not provided ( withspectrum =no) this parameter specifies the INDEX number of a source in the source description list (parameter srclist ), and thereby the incidence angle and selection regions for the response matrix. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/6.0.0/doc/rgsrmfgen/node4.html -- 14.7 Кб -- 18.03.2004
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6. Noeuds et tresses: expected results
... I.A.Dynnikov, Three-page approach to knot theory. ... Universal semigroup, Funktsional'nyi Analiz I Prilozhenija, 34 (2000), no.1, 29-40 (Russian); English translation in Functional Analysis and Its Appl. 34 (2000), no.1, 24-32. I.A.Dynnikov, Finitely presented groups and semigroups in knot theory. ... Math. 2000, no. ... English translation: Russian Math. ... A.Vershik, Numerical invariants of exponential groups, and a locally free approximation of braid groups (in Russian), Zapiski Nauchn. ...
[ Сохраненная копия ]  Ссылки http://www.mccme.ru/lifr/grants/noeuds_expected.htm -- 9.5 Кб -- 04.10.2006
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7. Test Page for Apache Installation
If you can see this, it means that the installation of the Russian Apache web server software on this system was successful. ... This page is here because the site administrator has changed the configuration of this web server. ... The Apache Software Foundation, which wrote the web server software this site administrator is using, has nothing to do with maintaining this site and cannot help resolve configuration issues. ... You are free to use the image below on an Apache-powered web server. ...
[ Сохраненная копия ]  Ссылки http://neptun.sai.msu.su/ -- 2.4 Кб -- 02.07.2001
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8. ACS Instrument Handbook
ACS Insturment Handbook for Cycle 24 . ... Advanced Camera for Surveys Instrument Handbook for Cycle 24 > Chapter 9: Exposure-Time Calculations > 9.3 Computing Exposure Times . ... The detector background ( B det ) or dark count in units of counts/second/pixel and the read noise ( R) in counts of the CCD. ... As a consequence, in order to obtain correct estimated count rates for red targets, observers are advised to use the synphot package in IRAF /STSDAS (or Pyraf), or the pysynphot package in Pyraf. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/hst/acs/documents/handbooks/current/c09_expcalc4.html -- 26.0 Кб -- 11.04.2016
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9. Sternberg Astronomical Institute
SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/ -- 7.0 Кб -- 27.02.2014
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10. Performances of NICS
The overall efficiency (including atmospheric transmission, reflectivity of the telescope mirrors and overall efficiency of the optics and of the detector) for broad-band imaging should be about 25% in H and K, and about 15% in J. The main noise source for both broad- and narrow-band imaging should be the photon noise associated to the background+source flux. ... Flat fielding (and possibly background subtraction) might increase the noise by a factor 2 ? ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/irlab/instr/nics/generale/prest.html -- 3.8 Кб -- 28.07.2005
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11. http://www.gao.spb.ru/english/personal/malkin/publ/zm08g.pdf
... Between them, the following points are touched: ICRF-2 structure, ICRF Core sources selection, and some expected user's requirements. ... Suggested total number of sources is close to the number of sources already observed in the IVS and VCS sessions, and for most of them reliable positions are derived, mostly for declination > -40 deg. ... So, results of source position time series analysis heavily depend on method used for time series computation and should be used with care. ...
[ Текст ]  Ссылки http://www.gao.spb.ru/english/personal/malkin/publ/zm08g.pdf -- 2058.3 Кб -- 27.10.2008
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12. Astronomical Society
... Donate to Support Science Literacy . ... 2016 Annual Awards . The ASP is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach. ... Shop the AstroShop . ... The Astronomical Society of the Pacific (ASP) is accepting nominations for the organizationтАЩs national annual awards which recognize special achievements in astronomy research, technology, education, and public outreach.. ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/ -- 49.2 Кб -- 09.04.2016
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13. S.P. Korolev RSC Energia - International Space Station
... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... 55 years since Yuri Gagarin's flight . ... Project History . ISS Russian Segment . ... History of flights . ... Acquire the data on dynamics of the body composition including the liquid media of the human organism and their distribution in a long term space flight. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...
[ Сохраненная копия ]  Ссылки http://www.energia.ru/en/iss/researches/human/05.html -- 25.1 Кб -- 10.04.2016
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14. Slide 7
. First page Back Continue Last page Summary Graphics .
[ Сохраненная копия ]  Ссылки http://www.naic.edu/alfa/galfa/meetings/1/talks/koo1_files/text6.htm -- 1.6 Кб -- 06.05.2003
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15. MNRF Local Oscillator Upgrade
... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... ATCA . ... A very stable local oscillator reference-frequency (LORF) is sent to each antenna of the Australia Telescope Compact Array (ATCA). The local oscillator upgrade will provide a reliable, low-noise, system for distributing master-reference signals to the Australia Telescope Compact Array antennas. ... Part of the MNRF grant is being used to improve reliability of the ATCA LORF distribution. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/projects/mnrf1996/lo_details.html -- 52.3 Кб -- 08.04.2016
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16. Leonids 2006
Trail encounter . ... Expected meteor rates . ... The Leonids are the debris of Comet 55P/Tempel-Tuttle. ... The Earth's passage right through the centre of trails is associated with the most spectacular meteor displays (studies show that, as well as how close to the centre of the trail you are, the strength of the display also depends on how far along a trail's length you are). ... The encounter with the 1932 trail will lead to enhanced meteor activity: a nice outburst, but below storm level. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/leonid/2006/info2006.html -- 8.6 Кб -- 21.11.2006
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17. Unexpected Galaxy String in the Early Universe
... Unexpected Galaxy String in the Early Universe . ... 20.01.2004 . ... NSF , NASA Explanation: How could such a long string of galaxies form so early in the universe? Several new measurements of galaxies and clusters in the early universe are reporting structures involving galaxies and clusters that are larger than expected with the new standard "dark-energy" cosmology . ... Publications with keywords: galaxies - early universe . Publications with words: galaxies - early universe . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1196200 -- 14.7 Кб -- 20.01.2004
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18. Spectral energy distribution
... 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...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 02.10.2012
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/ssl/IRAS04296/node8.html -- 17.5 Кб -- 01.10.2012
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19. http://zebu.uoregon.edu/~uochep/talks/talks05/G050216-00.pdf
Searching for GRB -GWB coincidence during LIGO science runs Isabel Leonor University of Oregon LIGO-G050216-00-Z Motivation almost 40 years since GRBs were discovered past 15 years has been time of important clues isotropic and inhomogeneous distribution (BATSE); first optical, x-ray, radio counterparts; redshift measurements; association with core-collapse supernovae yet important ...
[ Текст ]  Ссылки http://zebu.uoregon.edu/~uochep/talks/talks05/G050216-00.pdf -- 1848.3 Кб -- 29.03.2005
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20. http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/README
XmCCD ----- The programs provided here offer a Linux graphical user interface to astronomical and scientific CCD cameras. ... It is the latest one they offer and the files included allow support for Android and Mac OS X. This distribution of XmCCD includes source code to utilize the SBIG shared library libsbigudrv.so with a Motif-based graphical user interface. ... The XmCCD source package includes and will install: SAOimage ds9 xpa cfitsio SAOimage is the primary image display for XmCCD. ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.2.1/README -- 5.0 Кб -- 27.04.2013
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