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1. APOD: 2015 May 31 - Supernova 1994D and the Unexpected Universe
... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 May 31 . Supernova 1994D and the Unexpected Universe . Image Credit: High-Z Supernova Search Team , HST , NASA . Explanation: Long ago, far away, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... About APOD | ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap150531.html -- 6.2 Кб -- 10.04.2016
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2. APOD: December 30, 1998 - Supernova 1994D and the Unexpected Universe
... December 30, 1998 . Supernova 1994D and the Unexpected Universe . Credit: High-Z Supernova Search Team , HST , NASA . Explanation: Far away, long ago, a star exploded. ... Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... The large number and great distances to supernovae measured in 1998 have been interpreted as indicating that we live in a previously unexpected universe . ... About APOD > . ... NASA Technical Rep.: ...
[ Сохраненная копия ]  Ссылки http://www.sai.msu.su/apod/ap981230.html -- 5.2 Кб -- 02.10.2012
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/~palla/ANDREAIMMAGINI/Stelle/sn94d_hiz_big.html -- 5.1 Кб -- 02.02.2001
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3. Supernova 1994D and the Unexpected Universe
Astronomy Picture of the Day . ... 31.05.2015 . ... Credit Copyright: High-Z Supernova Search Team , HST , NASA Explanation: Long ago, far away, a star exploded. Supernova 1994D , visible as the bright spot on the lower left, occurred in the outskirts of disk galaxy NGC 4526 . Supernova 1994D was not of interest for how different it was, but rather for how similar it was to other supernovae . ... Publications with keywords: supernova - cosmology . ... A Supernova through Galaxy Dust . ...
[ Сохраненная копия ]  Ссылки http://www.astronet.ru/db/xware/msg/1337347 -- 16.2 Кб -- 11.10.1972
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4. ESO - I see unexpected boxy emission-like features in my REDL spectra - where
... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > I see unexpected boxy emission-like features in my REDL spectra - where do they come from? ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... The pipeline by default interpolates across the bad columns in the REDL CCD when it creates the master bias, but does not so when it processes the science data. This inconsistency can create boxy emission-like features as seen in the figure below. ...
[ Сохраненная копия ]  Ссылки http://www.eso.org/sci/data-processing/faq/i-see-boxy-emission-like-features-in-my-redl-spectra-where-do-they-come-from.html -- 23.1 Кб -- 10.04.2016
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5. TwoFitlines: An Spectrum and Line Analysis Tool
Next: A New IRAF Catalog Access Tool for Astrometry . Up: Iraf Packages . ... Twofitlines is a tool developed within IRAF, optimized to be used with data containing multiple spectra along the spatial axis of the detector. A given spectral feature can be decomposed in one or several Gaussian components. ... A given spectral feature can be modeled using one or more components (currently only Gaussian profiles are available), . ... Close spectral features could be modeled simultaneously. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass99/P2-36/ -- 12.0 Кб -- 12.10.2000
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6. Parameters
... Meta Index / Home Page This section documents the parameters recognized by this task (if any). ... string . ... maxlegal'/`maxactual'/`user' . ... If xrangetype is set to `maxlegal', the values of TLMINn and TLMAXn are used, where n is the number of the column whose name is given by the xcolumn parameter. ... When xrangetype is set to `user', this parameter is expected. xmax . ... This is set if the total flux image should be read (using the name given in parameter imageset ) rather than created. ...
[ Сохраненная копия ]  Ссылки http://xmm.vilspa.esa.es/sas/7.1.0/doc/evarimgen/node4.html -- 12.5 Кб -- 08.07.2007
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7. The Hubble Deep Field - Cosmic Ray Rejection
Cosmic ray detection was performed in stacks with the same dither position. ... At each pixel CRREJ looks at the stack of frames and selects some initial pixel value, which can be the minimum or the median across the stack. ... For these suspect pixels, the thresholds are multiplied by a parameter PFAC which can be anything from zero, meaning that all suspects are automatically rejected, to one. ... The pixel values for pixels thrown out by a PFAC=0 choice, but not by PFAC=0.5 choice were compared. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/ftp/science/hdf/pipeline/crreject.html -- 5.4 Кб -- 13.02.1997
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8. Influence of Climate Variables on Tree-Ring Widths of Different Species
... In order to disentangle the effects of different climate variables on tree-ring growth rates of different species, and to explore the possibility that more than one species could improve the accuracy of the reconstructions of climate using tree rings, a methodical study of trees in close proximity to the Armagh Observatory climate station was initiated together with Ana Maria Garc?a Su?rez, and continued as part of the latter's PhD thesis with John Butler and Professor Mike Baillie (QUB). ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/annrep/annrep2004/node36.html -- 7.1 Кб -- 19.04.2005
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9. Entry points
Next: Context Levels Up: MIDAS Command Language Previous: Interrupting Procedures . ... In MIDAS, the ENTRY command defines entry points for different procedures in the same file. These individual procedures are executed by specifying also their entry point besides the file name in the `@@' command. ... DEFINE/PARAM P1 11 NUMBER "Enter input number: " . DEFINE/MAXPAR 1 ! only one parameter expected . ... DEFINE/PARAM P1 spiral IMA "Enter input image: " . ... DEFINE/LOCAL LOOP/I/1/1 0 . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol1/node46.html -- 7.3 Кб -- 23.02.1996
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10. The Gravimagnetic Parameter
... The parameter y   characterizes the ratio between the gravitational and magnetic ``properties'' of a star and will, therefore, be called the gravimagnetic parameter . Two magnetic rotators having quite different magnetic fields, subjected to different external conditions but with identical gravimagnetic parameters, have similar magnetospheres, as long as the accretion rate is quite low ( ). ... For isolated rotators, the accretion rate  yr is assumed. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node24.html -- 6.9 Кб -- 25.02.1997
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11. 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 . ... ISS Russian Segment . ... Consolidated study of the ISS dynamic characteristics; parameters defining a space position of scientific devices and attitude sensors with respect to the station hull deformation; parameters of magnetic and microgravity disturbances on board the station. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...
[ Сохраненная копия ]  Ссылки http://www.energia.ru/en/iss/researches/techn/36.html -- 26.8 Кб -- 10.04.2016
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12. Polarization/Stokes Handling (stokes and select)
... The visibility datasets possibly contain correlations for different polarizations and Stokes parameters. There are two basic ways that polarization characteristics can be measured: firstly, two orthogonal feeds can be present on the antennas, and the four different polarization correlations from a baseline can be taken and recorded. ... There are two ways the user can determine which polarizations he or she wants to process, either with the select parameter, or with the stokes parameter. ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/computing/software/miriad/userguide/node39.html -- 8.9 Кб -- 10.04.2016
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13. Features of the PROS software
Next: Coordinate Systems Up: IRAF/PROS Previous: Other Types of Files . A few new features and enhancements to the standard IRAF system have been introduced with the PROS software: . ... Default compound extensions are used by the PROS tasks when no extension is given for the output file name. Most PROS tasks allow the output file name to be defaulted, with the convention that the output file name will be composed of the input `root' name, plus the default extension specific to the task. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/PROS/PUG/node19.html -- 8.0 Кб -- 01.10.2012
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14. Heracles
... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...
[ Сохраненная копия ]  Ссылки http://www.buran.ru/htm/heracles.htm -- 10.6 Кб -- 01.10.2012
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16. The Mock Spectrometer
... Of the 4 buttons in the bottom part of the configuration screen, three deals with power level adjustments: the 'Power control' button brings up the power control window where You can adjust the power levels of the different parts of the IF/LO system, the 'Power levels' button brings up the power level monitoring window (which also can be run outside CIMA as the 'powerwin' program), and the 'Adjust Mock power' button which adjusts the power levels on the Mock spectrometer (but nowhere else). ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~cima/cima_mock_spectrometer.html -- 7.3 Кб -- 01.03.2012
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17. 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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18. Solar Physics
... Other Characteristics of the Sun: Variability of Rotation, Magnetism, Chemical Structure, Planetary System. ... Methods of Solar Magnetic Fields Measuring: Visual, Photografic, Photoelectric. ... Empiric Datas of Magnetic Fields in Photosphere, Chromosphere and Corona. ... Characteristics of Magnetic Field in Balanced Force Tubes by Potential and Forceless Field. ... Phenomenons in Active Region (Magnetic Field, Spots, Torches, Solar Prominences, Flares, Discharges. ... Magnetic Fields in Flares. ...
[ Сохраненная копия ]  Ссылки http://space.univ.kiev.ua/courses/fiz_son_e.html -- 6.3 Кб -- 23.02.2005
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19. Polarization properties (transmitted radiation)
Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...
[ Сохраненная копия ]  Ссылки http://www.astro.spbu.ru/DOP/8-GLIB/ASTNOTES/node5.html -- 24.1 Кб -- 19.11.2010
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20. http://www.mrao.cam.ac.uk/~bn204/lecture/2008/bn-l5.pdf
Statistics for Astronomy V: Bayesian Statistics (+A bit more on ML) B. Nikolic b.nikolic@mrao.cam.ac.uk Astrophysics Group, Cavendish Laboratory, University of Cambridge http://www.mrao.cam.ac.uk/~bn204/lecture/astrostats.html 5 November 2008 Goals for this Lecture ML Example Monte-Carlo Bias Covariance of parameters Introduction to Bayesian Inference Features of Bayesian Inference Outline ML Example Monte-Carlo Bias Covariance of ... What prior information on parameters we have? ...
[ Текст ]  Ссылки http://www.mrao.cam.ac.uk/~bn204/lecture/2008/bn-l5.pdf -- 537.5 Кб -- 10.08.2012
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