Microsymposium 34, MS047, 2001 SOME PROBLEMS OF THE EVOLUTION OF ASTEROIDS ­ RUBBLE PILE. ... Evidently, we can distinguish two processes: distant interactions, where there is no direct contact between separate fragments, and close contact interactions, where the fragments collide with one another. ... Such a rubble pile with a dust atmosphere differs from a cometary nucleus only in the absence of a volatile gas component, which is usually considered the cause of the appearance of cometary dust. ...

... We consider the astrophysical evolution of the Galaxy over large time scales, from early stages (an age of ~10 8 yrs) to the end of traditional stellar evolution (~10 11 yrs). ... In the model considered, the basic stages of Galactic evolution are as follows. ... Essentially all other basic parameters of the Galaxy vary little. ... The final "stellar epoch" in the life of the Galaxy is completed ~10 13 yrs after its formation, when the evolution of the least massive stars comes to an end. ...

... GCR and SCR are primary cosmic rays. 10-15 years after the discovery of cosmic radiation (1919) there emerged two main avenues of investigation in the physics of cosmic rays (CR): 1) nuclear - elucidation of the origin of elementary particles and nuclear interactions; and 2) astrophysical (space physics) - solution of the problem related to the origin and variations (changes in intensity) of CR. ... Besides, the CR flux in interplanetary space is, strictly speaking, not isotropic. ...

... Received 2007 August 31; in original form 2007 June 21 ABSTRACT A spinar is a quasi-equilibrium collapsing ob ject whose equilibrium is maintained by the balance of centrifugal and gravitational forces and whose evolution is determined by its magnetic field. ... SPINAR SCENARIO OF MAGNETO-ROTATIONAL COLLAPSE. ... Let m be the ratio of the magnetic energy of the core to its gravitational energy: Spinar Paradigm and Gamma Ray Bursts Central Engine 3 exceeds the momentum corresponding to escape...

SLIDE 1 Coherent beam­beam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchro­betatron modes in the beam­beam system, and thus a head­tail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchro­betatron mode tunes on the beam current for equal electron and positron bunch intensities. ...

... DEPENDENCE OF ORDINARY WAVE ANOMALOUS ABSORPTION ON THE SOUNDING PROBLEM PARAMETERS . ... Transformation of electromagnetic wave into plasma waves plays an important role in different processes taking place in ionospheric plasma. ... According to modern point of view transformation of ordinary wave into plasma waves plays an important role in small-scale random irregularities generation when ionospheric plasma is heated by power radio wave [1,2]. ... Anomalous attenuation. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Meade Instruments . ... LX850 Series . ... Support . ... Repair Terms . ... If repairing your product under your product's warranty or extended service contract, Meade may use new or reconditioned parts, if permitted by the terms. ... If Meade repairs your product under warranty or extended service contract, the repairs will be covered solely by the terms of the warranty or extended service contract and applicable provisions of law. ...

... After the 2nd World War, the Executive Committee of the International Astronomical Union (IAU) made two groups in Moscow responsible for catalogues of variable stars. ... Presently, the variable-star catalogue groups still exist within the Sternberg Astronomical Institute and the Institute of Astronomy of Russian Academy of Sciences . ... Elena Kazarovets (variable stars in open clusters, Peremennye Zvezdy journal, GCVS) . ... Nataliya N. Kireeva (variable stars, globular clusters, GCVS) . ...

... What's New? Bad Astronomy . ... News . ... The questions was: "During a flight, I saw a round rainbow shaped like a doughnut. ... However, she said that all rainbows are actually circles, and that she could not find a name for this phenomenon. ... One is that rainbows really aren't full circles. ... Basically, rainbows are due to light getting bent ("refracted") inside of raindrops. ... It's called a "glory", and is formed in a somewhat different way than rainbows. ... 2008 Phil Plait. ...

... 86, No. 12, pp. 1163­1178. i Structure of the Galaxies of the NGC 80 Group : Two-Tiered Disks M. A. Startseva1 , O. K. Sil'chenko1 , and A. V. Moiseev 1 2 Sternberg Astronomical Institute, Moscow State University, Moscow, ... photometric data obtained on the 6-m telescope of the Special Astrophysical Observatory are used to analyze the structure of 13 large disk galaxies in the NGC 80 group ... All the large lenticular galaxies have two-tiered exponential disks and exponential ґ...