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1. Hydrogen-deficient central stars of planetary nebulae
Next: Carbon stars Up: OTHER HYDROGEN-DEFICIENT STARS Previous: Extreme helium stars and . V348sgr may be more closely related to about twenty hydrogen-deficient central stars of planetary nebulae which have similar carbon abundances ( ) and strong emission line spectra ([ Leuenhagen et al. 1995 ], [ Leuenhagen & Hamann 1997 ]). ... Hydrogen-deficient and carbon-rich knots are seen in the inner nebulae of at least two objects (Abell 30 and Abell 78). ...
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Ссылки http://star.arm.ac.uk/~csj/research/rcb_review/node17.html -- 3.6 Кб -- 25.01.2002
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2. Theoretical Astrophysics
Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...
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Ссылки http://space.univ.kiev.ua/courses/teor_astroph_e.html -- 8.7 Кб -- 23.02.2005
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3. Common problems
... R.A. = 00h55m04s.86, Decl. = -37 41'43".7 . ... Variable star in NGC 1511 . ... Variable star near Pegasus 2001bn IAUC 8624 BV anon 2001bh 7622 K star ugc11635 2001dh 7482 M star ic5374 1999db 7227 QSO anon 1999dc 7227 AGN anon 1999cx 7210 AGN anon 1999cu 7210 AGN anon 1999bs 7141 cat var ugc11093 1998di 6982 dwarf nova anon 1993U 5818 QSO anon 1993V 5818 QSO anon 1992W 5517 M star mcg 8-23-96 1992X 5517 M star mcg 6-32-24 1991ap 5327 QSO anon 1989Z 5162 var ngc4013 1985J 4059 CV ugc6274 ? ...
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Ссылки http://www.rochesterastronomy.org/snimages/snproblems.html -- 7.3 Кб -- 19.04.2014
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4. http://www.issp.ac.ru/iao/2014/booklet/ia14_booklet_en1_page_B02.pdf
... Great oppositions. ... Proxima Centauri. ... Scientists proved that the problem of preserving the Earth's climate and the annual change of seasons can be solved by a small star, negligible mass, but similar to a main-sequence star, moving in a circular orbit around the Sun. ... Sombrero Galaxy. The Sombrero Galaxy, M104, is known as a holder of one of supermassive black holes. ... Roughly estimate the approximate mass of the supermassive black hole in the center of M104 (answer in solar masses m). ...
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Ссылки http://www.issp.ac.ru/iao/2014/booklet/ia14_booklet_en1_page_B02.pdf -- 257.5 Кб -- 22.10.2014
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5. The Puzzle
Next: Observations Up: The Nuclear Region: HI Previous: The Nuclear Region: HI . There are mainly two questions to be addressed: 1) What causes the large velocity width (several hundred kms -1 ) of the absorption lines detected against the nuclear regions of galaxies? 2) Why are the absorption line widths observed against the nuclear radio continuum similar to those measured in emission over the whole extent of the galaxy? ...
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Ссылки http://www.atnf.csiro.au/people/Baerbel.Koribalski/min_lecture/node3.html -- 6.5 Кб -- 04.02.2013
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6. RESEARCH PROBLEMS of the LRS
... The main research task of the LRS was an investigation of interstellar medium of our Galaxy using its line emission in radio domain with the help of the gratest RATAN-600 Radio Telescope. ... The complex investigation of the Interstellar Clouds structure on the different scales and with the different radio lines for understanding of structure, dynamics and evolution of interstar gas and its interaction with other galactic constituents and the conditions for star formation. ...
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Ссылки http://mavr.sao.ru/hq/lrs/lrssao1.html -- 6.0 Кб -- 09.04.2016
[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lrs/lrssao1.html -- 6.0 Кб -- 09.04.2016
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lrs/lrssao1.html -- 6.0 Кб -- 09.04.2016
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[ Сохраненная копия ] Ссылки http://www.sao.ru/hq/lrs/lrssao1.html -- 6.0 Кб -- 09.04.2016
[ Сохраненная копия ] Ссылки http://jet.sao.ru/hq/lrs/lrssao1.html -- 6.0 Кб -- 09.04.2016
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7. problems adjpwr with large birdies
... We replaced the power supply and the system started to work. ... We computed the total power Tsys (using the cal value). ... Page 1: 9 level, total power Tsys . ... Page 2: 9 level spectra of Tsys . ... The polA 9level total power offset was no longer there. the +5 analog supply for halfband filters 3,4 failed sometime around 21jun11. this caused the Tsys for sbc3,4 to increase by about 3 deg K for 9 level sampling. 3level sampling has a tsys increase of about .5 K . ... up_to_interim cor page . ...
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Ссылки http://www.naic.edu/~phil/hardware/cor/halfbandfilter34_jun11.html -- 5.7 Кб -- 24.06.2011
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8. Comments on: Change Point Problem By: vlk By: vlk By: hlee By: vlk
http :// hea-www.harvard.edu / AstroStat /slog/ 2007 / change - point - problem / Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http ://wordpress.org/?v=3.4 http :// hea-www.harvard.edu / AstroStat /slog/ 2007 / change - point - problem /comment-page-1/#comment-64 vlk Fri, 17 Aug 2007 22:09:06 +0000 ... Defining peaks sounds like point estimation from functional data analysis. ...
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Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/2007/change-point-problem/feed/index.html -- 8.0 Кб -- 04.02.2013
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9. http://www.stsci.edu/ftp/observing/status_reports/old_reports_93/hst_status_04_16_93
HUBBLE SPACE TELESCOPE DAILY REPORT #868 PERIOD COVERED: 0800 EST Daily Status Report as of 109/1200Z. 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Uplinked Updated Ephemeris Tables, Per MOSES 2871 1.2 Completed PC 4712 (WF/PC Cycle 2 Calibration: Measles Monitor) The Planetary Camera was used to make Earth calibration flat images with filter F517N, both with and without filter F122M. These images are to be used to monitor the appearance and number of measles (i.e., contamination marks). ...
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Ссылки http://www.stsci.edu/ftp/observing/status_reports/old_reports_93/hst_status_04_16_93 -- 8.6 Кб -- 19.04.1993
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10. Welcom to CONPAS workshop
... Dr. Ravil Nazirov is the head of the workshop, and Andrew Ananjev is the secretary of the workshop. ... The workshop is used to be held in the last decade of the month, preferably on Tuesdays. ... The next session will take place October 29, 1996 . ... There is "CONPAS" mailing list which you can join to discuss issues of problem solving and to be automatically notified of important dates and decisions with respect to the coming sessions. ... Secretary of the Workshop: Andrew Ananjev . ...
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Ссылки http://www.iki.rssi.ru/CONPAS/Welcome.html -- 3.2 Кб -- 13.10.1997
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11. ADS Abstract Service Results
Find Similar Abstracts . ... Large-scale distribution of matter in the universe . ... DARK MATTER, GALACTIC EVOLUTION, MASS DISTRIBUTION, UNIVERSE, GRAVITATIONAL EFFECTS, HYDROGEN RECOMBINATIONS, PERTURBATION THEORY . ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...
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Ссылки http://xray.sai.msu.ru/~mystery/html/Z/biblio/89.1.html -- 7.1 Кб -- 29.05.1996
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12. Download building of the radiospec package Bojan Nikolic web pages (r. 329)
... Bojan Nikolic web pages (r. 329) . ... Note however that the radiospec is built in the ?build? sub-directory of the directory you installed it to and is not installed ? ... Build radiospec wget http://www.mrao.cam.ac.uk/~bn204/soft/radiospec-1.0.tar.gz tar --strip-components = 1 -xzvf radiospec-1.0.tar.gz PATH = $INSTALLDIR/bin:$PATH scons PKG_CONFIG_PATH = $INSTALLDIR/lib/pkgconfig/ . ... You will at least also need the numpy package for Python . ... Download & building of the radiospec package . ...
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Ссылки http://www.mrao.cam.ac.uk/~bn204/galevol/speca/build.html -- 19.5 Кб -- 04.04.2016
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13. INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY PROBLEMS AND PROSPECT OF THE
... Events INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY PROBLEMS AND PROSPECT OF THE PROPULSION ENGINEERING DEVELOPMENT . ... INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY PROBLEMS AND PROSPECT OF THE PROPULSION ENGINEERING DEVELOPMENT . ... Development prospects and use of engines for aviation, space - rocket systems, motor transport mechanical engineering and stationary power supply installations . ... Propulsion engineering, power engineering and space vehicle ecology problems . ...
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Ссылки http://www.ssau.ru/engevents/show/?id=613 -- 27.2 Кб -- 19.02.2016
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14. http://hea.iki.rssi.ru/conf/hea2010/Presentations/22/Chernyakova.pdf
Gamma-rays from the GC . M.Chernyakova (DIAS), D.Malyshev (DIAS), F.Aharonian (DIAS, MPIK), R.M.Crocker(MPIK), D.I.Jones(MPIK) 1 10°x10° Count and TS maps (>300 GeV) Gamma-rays from the GC 2 TS maps of the GC at different energies 300 MeV 3GeV 3 GeV 30 GeV 30 GeV 300 GeV Gamma-rays from the GC 3 4 Gamma-rays from the GC Lightcurve 5 Gamma-rays from the GC Source spectrum Model X-ray and low-energy emission come from the central object, probably SMBH accretion disk. ...
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Ссылки http://hea.iki.rssi.ru/conf/hea2010/Presentations/22/Chernyakova.pdf -- 697.4 Кб -- 26.01.2011
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15. DFS Problem Reporting rules and recommendations
... DFS Department Problem Reporting rules and recommendations . ALL change requests, bugs or support request on operational releases (i.e. releases already installed and running on the mountain) must be reported via the DFS Problem Reporting tools , based on the Action Remedy system. ... in case of bug, change request or support need directly reported to you via mail or phone call by s DFS user (Paranal, La Silla, DFO, ...), please, check whether an Action Remedy Problem Report is already open. ...
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Ссылки http://www.eso.org/projects/dfs/team/DFS-PR.html -- 7.4 Кб -- 13.04.2005
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16. http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS
... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...
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Ссылки http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS -- 32.2 Кб -- 19.08.2002
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17. The bias problem
Next: Equations of condition Up: Extinction and transformation Previous: Extinction and transformation . Bias can also be introduced by improper fitting procedures. For example, the reduction program known as SNOPY, used for many years at La Silla and also at La Palma, uses a simple iterative technique in which some subsets of the parameters are solved for, while others are held fixed; then the ones last solved for are held fixed, while the ones previously fixed are redetermined. ...
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Ссылки http://www.sao.ru/precise/Midas_doc/doc/94NOV/vol2/node293.html -- 7.5 Кб -- 23.02.1996
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18. Imaging by an Optimizing Method
... Up: Algorithms . ... The imaging problem can be described as an optimizing problem in mathematics. ... Computer simulations of rotating modulation collimator imaging show that the quality of images from this method is better than that from the traditional cross-correlation method. ... The imaging problem is: . ... The results show that this algorithm can be used in the imaging problem and usually results in a better image than that obtained from a traditional method such as cross-correlation. ...
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Ссылки http://www.adass.org/adass/proceedings/adass96/cheny.html -- 10.6 Кб -- 23.06.1998
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19. XMM Deep Survey Simulations
... QSO spectra in the ROSAT band are steeper than the background at harder energies, and furthermore at fluxes below 1E-14 ergs/(s cmќ) the quasar source counts flatten off and are replaced by more numerous populations of relatively low red-shift objects, apparently Narrow Emission Line Galaxies (NELG). ... We extracted the luminosity function from ROSAT Deep Survey results, and extrapolated by a factor of 2 - 3 to account for changes expected in the harder XMM band. ...
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Ссылки http://xmm.vilspa.esa.es/user/sciobj/deep_survey.html -- 6.2 Кб -- 24.02.1998
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20. East Siberian Center for the Earth's Ionosphere Research. Problems of the IS
Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... A most promising problem is to investigate the interaction of two VHF powerful radiowave beams in the ionosphere, whose difference frequency is equal to the plasma frequency in some ionospheric area (that is, the difference frequency is taken in the range 1-8 MHz). ... Two-frequency interaction effects are based on radiowave non-linear mixing, which is rather complicated when describing and modelling the experiment. ...
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Ссылки http://rp.iszf.irk.ru/esceir/isr/theoren.htm -- 5.2 Кб -- 04.06.2001
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Астронет | Научная сеть | ГАИШ МГУ | Поиск по МГУ | О проекте | Авторам
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