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1. Persistence GPI Data Pipeline 1.0 documentation
... previous | GPI Data Pipeline 1.0 documentation . ... Observed Effect and Relevant Physics: . ... Image persistence is effect of the observed flux of previous images impacting the following observations as an elevated dark current (see Figure 1). ... Persistence removal is performed using the ?Persistence Removal of previous images? primitive. ... This primitive must not be run on flexure-corrected data as the persistence is derived from the previous image and will not change with elevation. ...
[ Сохраненная копия ]  Ссылки http://www.stsci.edu/~mperrin/software/gpidata/ifs/steps/persistence.html -- 12.5 Кб -- 14.02.2014
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2. Observe Every Photon's Size Experiment - an Astronomy Net Education Forum
Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Observe Every Photon's Size Experiment . ... Post Message | ... Observe every photon's size experiment . 1.The slow process of the formation of the light diffraction pattern experiment . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.net/forums/education/messages/119.shtml -- 15.7 Кб -- 09.04.2016
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3. Results of follow-up spectroscopy
Next: Emission-line galaxies Up: The Hamburg/SAO Survey for Previous: Data reduction . In total 217 candidates were observed during the January - June, 1995, of which 34 objects were observed with the 6m telescope, 183 objects with the Calar Alto 2.2m telescope, and 4 with both instruments. ... For 11 of the known ELGs we measure emission line ratios and make quantitative classification. ... Emission-line galaxies . ... Objects without emission lines . Absorption-line galaxies . ...
[ Сохраненная копия ]  Ссылки http://www.sao.ru/precise/Laboratory/Publications/1999/HSSI/TEXT/node7.html -- 4.8 Кб -- 24.11.1998
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4. Evolutionary Effects
Next: Rapidly Rotating Stars Up: Discussion Previous: Relations . ... They attributed this to a mechanism which regulated stellar angular momentum through the accretion disk. ... While some of this may be due to sampling effects, the data seem to indicate that after a star loses its disk, either it continues its slow rotation for a period of time and then a rapid increase in rotation rate commences or spin up does not necessarily follow the loss of the disk. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/~swolk/thesis/discussion/node4.html -- 7.3 Кб -- 02.10.2012
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5. Effect of the Magnetic Field
Next: The Corotation Radius Up: ``Ecology'' of Magnetic Rotators Previous: The Stopping Radius in . Apparently, the magnetic field of a star becomes significant only when the stopping radius exceeds the radius of the star, . ... Most presently observed NS have magnetic fields  G and dipole moments  G cm , so the magnetic field must necessarily be taken into account when considering interaction of matter with these stars. ... Sat Feb 22 18:38:13 MSK 1997 ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~mystery/articles/review/node20.html -- 4.9 Кб -- 25.02.1997
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6. 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 . ...
[ Сохраненная копия ]  Ссылки http://www.atnf.csiro.au/whats_on/workshops/synthesis2003/talks/sensitivity/negl.html -- 48.9 Кб -- 12.04.2016
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7. Clumpy dust disks
... Abstract: We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. ... As a general result, clumpy models are less opaque than the corresponding homogeneous models. ... 0.00 0.15 0.50 0.1 0.5 1.0 2.0 5.0 10.0 0.25 X . ... We have also produced several homogeneous models, to compare to the clumpy models. ... Homogeneous and clumpy models with the same tauV have the same dust mass. ...
[ Сохраненная копия ]  Ссылки http://www.arcetri.astro.it/~sbianchi/clumping.html -- 14.5 Кб -- 29.03.2002
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8. http://www.mrao.cam.ac.uk/~mh475/poster.pdf
Modelling the effects of FR II radio jets on the turbulent magnetic fields in the intra-cluster medium Mar tМn Huar te Espinosa , Mar tin Krause, Paul Alexander and Christian R. Kaiser. ... The plasma relaxes for a crossing time (118 Myr) and then we inject mass and x-momentum to a central control cylinder and experiment with the jets power: velociB µG RM maps We calculate RM= 812 dl rad m-2 from the jets' con3 tact discontinuity to the end of the domain along different viewing angles. ...
[ Текст ]  Ссылки http://www.mrao.cam.ac.uk/~mh475/poster.pdf -- 2202.3 Кб -- 21.10.2009
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9. GRB follow-up team
... Team . ... GRB mini-workshop 2006 . ... Within the framework of a joint observational program (SAO RAS + Instituto de Astrofisica de Andalucia (IAA), Granada, Spain) on August 25 and 27, 2006, a variable optical object (optical transient) OT GRB 050824 was photometrically observed in SAO. ... An optical identification was made in SAO with a CCD photometer of the 1-meter telescope by data of a satellite observatory SWIFT and with the use of optical data of the inernational monitoring of GRBs. ...
[ Сохраненная копия ]  Ссылки http://mavr.sao.ru/hq/grb/followup/GRB050824/GRB050824.html -- 6.7 Кб -- 10.04.2016
[ Сохраненная копия ]  Ссылки http://www.sao.ru/hq/grb/followup/GRB050824/GRB050824.html -- 6.7 Кб -- 10.04.2016
[ Сохраненная копия ]  Ссылки http://jet.sao.ru/hq/grb/followup/GRB050824/GRB050824.html -- 6.7 Кб -- 10.04.2016
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10. Incoherent scatter [Oulu]
... The basic principles of incoherent scatter: . ... Because of the electron movement, spectrum of the observed signal is broad and it has shape which depends, e.g., on the temperature. ... ion temperature . ... According to the theory, Ti should be replaced by (2Ti,perp + Ti,par)/3 (Williams and Jain,1986; Glatthor and Hernandez, 1990; Winser et al., 1990). ... Glatthor, N., and R. Hernandez, Temperature anisotropy of drifting ions in the auroral F-region, observed by EISCAT, J. atmos. terr. ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/SPPHTEXT/incoherent.html -- 4.9 Кб -- 21.12.2007
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11. M.D. Smith, Research Astronomer
Next: M.E. Bailey, Director Up: Research Previous: C.S. Jeffery, Research Astronomer Contents . Dr Michael Smith has focused mainly on the earliest stages of stellar evolution: the processes leading to star formation from an initially unstable, collapsing cloud of gas, and the energetic outflows -- jets and winds -- associated with the formation and early evolution of protostars and pre-main-sequence stellar objects. ... Spectacular jets of molecules, however, betray its presence. ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/annrep/annrep98/node14.html -- 9.2 Кб -- 14.12.1999
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12. Is it possible that the gravitational effects attributed to dark matter could
... Gravitational wave search provides insights into galaxy evolution and mergers . ... Is it possible that the gravitational effects attributed to dark matter could be caused by Jupiter-sized planets discovered orbiting other stars and also floating freely outside planetary systems? ... A large number of detected and undetected Jupiter-sized planets could not mimic the gravitational effects produced by dark matter for two reasons. ... Get instant access to subscriber content on Astronomy.com! ...
[ Сохраненная копия ]  Ссылки http://www.astronomy.com/magazine/ask-astro/2012/06/could-dark-matter-be -- 63.7 Кб -- 10.04.2016
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13. Siding Spring Survey Follow-up Obs
Follow-up astrometry and recoveries are made with the ANU 40 inch (1.0-m) f/8 reflector at Siding Spring Observatory (IAU code 413). ... A routine follow-up of 2003 WY153 on 2003 Dec 15 became much more than routine when a faint object with unusual motion vector was found close to the target asteroid. ... During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the asteroid was found on March 30 to have a short tail! ... Siding Spring Survey Main Page . ...
[ Сохраненная копия ]  Ссылки http://www.mso.anu.edu.au/~rmn/follow-u.htm -- 13.0 Кб -- 16.02.2005
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14. http://www.eso.org/~evkampen/Research.pdf
een able to make significant contributions, in particular relating to the following op en science questions: (1) the ep och of galaxy formation and their star formation history (2) the effect of environmental processes on star formation in galaxies (3) the enrichment of the intra- cluster medium from stripp ed galaxies (4) the imp ortance of dusty starbursts in the formation and evolution of galaxies High-redshift ... Stars show the sky-averaged correlation function. ...
[ Текст ]  Ссылки http://www.eso.org/~evkampen/Research.pdf -- 104.2 Кб -- 17.11.2009
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15. Spectral-Line Observing
... We will consider the rms, (K), for observations with a receiver of system temperature, T , frequency resolution, per polarization, and total integration time per observing cycle, . ... For ``in-band'' frequency switching, the line under investigation is always in the observing band. ... Position Switching or ``Out-of-Band'' Frequency Switching: Here the line is only observed for one half of the time, with noise being present all of the time. ...
[ Сохраненная копия ]  Ссылки http://www.naic.edu/~astro/guide/node15.html -- 10.0 Кб -- 22.02.2012
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16. The Sun - a summer without activity
... Precisely one month ago, on 11 July 2009, the last active area of the new solar cycle disappeared from the surface of the Sun. Over the 30 days following this, neither observers on Earth nor devices in space have been able to detect the emergence of any sunspots. ... Therefore, it seems that our star has once again returned to a state of deep solar "winter", following several sparks of activity in May-June 2009. ... To date, this period has lasted 30 days. ...
[ Сохраненная копия ]  Ссылки http://www.tesis.lebedev.ru/en/info/tesis_20090811_en.php -- 9.7 Кб -- 01.10.2012
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18. Chronology of geomagnetism
... Faraday's Lines of Force (field lines) . Faraday's Disk Dynamo . ... The Earth's Dynamo . ... Magnetic Storms and Ring Currents . The Magnetosphere . ... Chronology of Geomagnetism . ... 1581 Robert Norman publishes "The Newe Attractive," . ... 1832 Faraday tries to detect a dynamo current in water flowing in the Earth's field. ... magnetic storm. ... 1903 Birkeland proposes the existence of "polar magnetic storms," He also . ... 1919 Joseph Larmor proposes that magnetic fields of sunspots . ...
[ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/earthmag/milchron.htm -- 14.4 Кб -- 21.12.2007
[ Сохраненная копия ]  Ссылки http://www.cosmos.ru/mirrors/stern/earthmag/milchron.htm -- 14.4 Кб -- 22.12.2007
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19. ASP: Using Multicultural Dimensions to Teach Astronomy
... Information about a variety of different calendars for different cultures (e.g., Christian, Jewish, Muslim, Chinese, Hindu etc.) ... In addition, the Chinese had two different ways of interpreting and observing celestial events. One way the Chinese used astronomy was known as lifa; it was a discipline that aimed to understand the regularities and the predictable events in the celestial system through careful, observations, measurements and records. ... back to Teachers' Newsletter Main Page ...
[ Сохраненная копия ]  Ссылки http://www.astrosociety.org/edu/publications/tnl/53/multicultural4.html -- 10.1 Кб -- 02.10.2012
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20. http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0139-1-0.ps.gz
XMM­Newton CCF Release Note XMM­CCF­REL­139 EPIC pn quantum efficiency R. D. Saxton 12 Dec 2002 1 CCF components Name of CCF VALDATE Blocks changed XSCS flag EPN QUANTUMEF 0012.CCF 2000­01­01 QE TOTAL, FRACTION ENERGY, NO QE CCDn, FRACTION CHANNEL, CHBINS FRACTION 2 Changes The total quantum efficiency (QE) for the Epic­pn detector has been revised following a re­analysis of the ground calibration data. ... These have been applied to the FRACTION ENERGY and FRAC­ TION CHANNEL extensions. ...
[ Текст ]  Ссылки http://xmm.vilspa.esa.es/docs/documents/CAL-SRN-0139-1-0.ps.gz -- 46.5 Кб -- 20.01.2003
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