Next: Bibliography Up: R Coronae Borealis Stars Previous: Other Hydrogen-Deficient Stars . ... It remains to be shown that pulsations in all RCB stars provide the necessary conditions for dust nucleation to occur at this distance. ... The strength of a stellar absorption line represents the ratio of line opacity to continuous opacity in the atmosphere; both are related to the number density of the absorbing atoms and so provide the number ratio of line absorbers to continuum absorbers. ...

STScI . The Faint Early Sun: Paradox, Problem, or Distraction? ... The Faint Early Sun: . ... That low luminosity is a problem when combined with what we know about the early atmosphere of the Earth because if the Earth?s surface were to become covered in ice then the albedo would be high enough to prevent the young planet from recovering. ... How much glaciation occurred at those early epochs? ... What limits can we set on the state at different times of the atmosphere and surface of early Mars? ...

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... The mixers use the synthesizer in the dome to mix from the 1st to the 2nd if . IF2: this is the 2nd IF. ... a2705 reported that the data in some of their frequency bands did not look correct for their mapping data on 10sep12. ... I computed the average spectra for the mapping data on . 10sep12 - when some of the data was bad. ... Page 2: blowup spectra which used the synths that had the problem . ... You can see that the rfi for B4, and B6 are missing on the10sep12 spectra. ... bad . ...

... Minutes Group a (photocopy of the table with signatures and stamps) – one page. ... Theoretical round problems a – one page. ... Practical problem 7 ab – one page. ... Grid-lines for the practical problem 7 ab – one page. ... Picture to fill for problem 8 b – one page. ... Solutions of the practical round problems – not ready full (LOC jobs not done) – ?? pages. ... Observational round problems – one page. ... Dr. Michael G. Gavrilov, Founding Chairman of the International Astronomy Olympiad, . ...

How do I report problems I've encountered using NEdit ? ... If you have a problem which is not covered in the on-line help, in this FAQ, or in the README file specific to your system, you can report it to discuss@nedit.org (usage questions) or, develop@nedit.org (error reports). ... Below are some suggestions for information you can provide to help in diagnosing your problem. ... As of version 5.2 a summary with build information is present under 'Version' in the Help menu. ...

... Observatory . ... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > Are there any known problems with NACO data? ... Observing Facilities . ... Instrumentation Development . Future Facilities and Development . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... http://www.eso.org/observing/dfo/quality/NACO/ServiceMode/ServiceMode.html#problems . ...

... The analysis shows, that asteroid ­ rubble pile loses its fast fragments in no time but the retaining fragments forms a compact structure immersed in dust ­ gas atmosphere, created by interaction of interplanetary medium with dispersed product of collisional evolution of asteroid. By interaction of an asteroid ­ rubble pile with interplanetary medium structures asteroid can increase its brightness on account of blowed up dust simulating phenomenon of distant comet's brightening. ...

... Chebyshev Laboratory, Saint-Petersburg, Russia . ... Steklov Mathematical Institute, Moscow, Russia . ... Institute for Information Transmission Problems, Moscow, Russia . ... The University of Chicago, Chicago, IL, USA . ... CNRS, Laboratoire J.-V. Poncelet at the Independent University of Moscow, Moscow, Russia, . ... Moscow State University, Moscow, Russia . ... Lobachevsky Nizhny Novgorod State University, Nizhny Novgorod, Russia . ... Ogarev Mordovian State University, Saransk, Russia . ...

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. ...

... We are developing the following problems: a) combine optical and microwave technic to the indication of non-linear surface waves and wave breaking field; b) modelling of microwave propagation in a multiphase air-water interface; c) obtain quantitative dependencies of microwave radiation on geometry and statistics of wave breaking field in ocean surface; d) monitoring of ocean surface states using optical amd microwave airspace data sets. ... Important issue is spray and underwater bubbles. ...

... 0 ) = Z '' '' 0 [(1 \Gamma '')'' 1=2 sin 2 i sin 2!] ... We use the similarity theory to present the non--dimensional period T \ Lambda of the evolution of the parameters '' and i as a product of the independent factors: T \ Lambda = \ Gamma (4=15)(a \ Gamma3 =2 \ Lambda =LD )jL c (c 1 ; c 2 )j. Here LD = Ї k \ Lambda a \ Gamma3 k \ Lambda '' \ Gamma3 =2 k Ї \Gamma1=2 \ Lambda is the non-- dimensional parameter of disturbances similarity dependent on the dynamical characteristics of the ...

The picture above was made with this demo POV file and this pen object POV file . ... The cap and pen are separate objects; put together in their default orientation, the pen is "closed". ... The "clip" of the cap is rounded on the inside, and tapers to a point, and also tapers away from the pen, just like the real object. ... The cap is 0.18 units in diameter, the little ridge is 0.197 units in diameter, and the clip extends up to 0.26 units above the central axis. ...

... научных трудов Ширмина Г.И. ћ Luk'yanov, L. G.; Shirmin, G. I.(2007). Sundman surfaces and Hill stability in the three-body problem. Astronomy Letters, Volume 33, Issue 8, pp.550-561 . ... Astronomy Letters, vol. 29, p. 635-639 . ... Astronomy Letters, vol. 29, p. 274-277 (2003) . ... Astronomy Letters, Volume 28, Issue 6, June 2000, pp. ... Problems of celestial mechanics and stellar dynamics, p. 49 - 53 . ... Lagrangian points in the problem of the search for extraterrestrial civilizations. ...

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. ...

... 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 ? ...

... The calculator on this page allows you to calculate the angular separation of two sources in the sky using the corresponding equation derived on the Spherical geometry page. JavaScript must be enabled for the calculator to work. ... Source 1 / l : / b : . ... Note: the allowed format of right ascension / longitude is hh:mm:ss.s , hh mm ss.s , or d.d , while the format of declination / latitude is dd:mm:ss.s , dd mm ss.s , or d.d . ... 2016 Tobias Westmeier Contact | ...

Next: Initial conditions Up: Old neutron star distribution Previous: Introduction . The problem to be solved is to find stationary space distribution of stars which have had certain initial space and velocity distributions and move in a given potential. ... In principle, the most straightforward way to obtain the solution is to integrate directly the equations of motion for a sufficiently large number of stars with different initial conditions. ... Then space density is given by . ...

... If the star names used in data files are not exactly the same character strings as those used in star files, the reduction program will try to make cross-identifications. ... The program applies these rules in attempting to parse name strings containing multiple designations that are not separated by the `` = '' string (surrounded by blanks). ... This situation can be avoided by making sure that all star names are spelled consistently, and that names in star files agree with names in data files. ...

The code calculates the extinction, scattering and absorption efficiency factors for prolate or oblate homogeneous spheroids. ... We provide the code with a test input file and two output files. A run of the code with such an input should lead to the results given in the output files. ... Parameters: . ... Values of other parameters are specified in the input file homn.dat . ... Voshchinnikov N.V., Farafonov V.G. Optical properties of spheroidal particles, . ...