... Laboratory . ... webmaster@izmiran.ru . ... e-mail: karp@izmiran.ru . ... DEPENDENCE OF THE MIT SHAPE ON SOLAR ACTIVITY . ... The period considered was characterized by low solar activity (F 10.7 = 70) and increased magnetic activity. ... It follows from data shown in Fig. 9 and obtained by Deminov and Karpachev [1988] for high solar activity that (NmF2) ~ 2x10 4 and 4x10 4 cm -3 for near-midnight hours during local winter at F 10.7 ~ 70 and 200, respectively. ... C) 2007, IZMIRAN ...

... Theoretical department of ISSP RAS . ... Pis'ma v ZhETF, 69 , 543, 1999; V.E.Bisti , Pis'ma v ZhETF, 73 , 25, 2001 ). (ii) Collective intrasubband charge density excitations are investigated in double GaAs/AlGaAs quantum wells in external parallel magnetic field. ... Goldstone mode relaxation in a quantum Hall ferromagnet . ... The considered system is a Quantum Hall Ferromagnet possessing "classical" spin S 0 ~N j /2 (N j being the number of magnetic flux quanta, S 0 || ... Spin biexciton. ...

... Introduction: E-, M- and S-type asteroids are widely considered as remnants of differentiated parent bodies; specifically, Ms might have been their cores [e. g., 1, 2]. The conviction is based on the visible-range albedo (medium to high) and overall spectral curves (slightly reddish to red) of the small planets corresponding to these of metal iron and igneous silicate assemblages. ... It seems the spectral features superimpose to the spectral characteristics of metal iron and igneous silicates. ...

Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...

... Open Star Cluster M38 . ... Open cluster M38 can be seen with binoculars toward the constellation of Auriga. M38 is considered an intermediately rich open cluster of stars, each of which is about 200 million years old. ... Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can be seen stretching off into the distance. ... POX 186: Not So Long Ago . ... Have you ever seen a sun pillar? ... NGC 1818: A Young Globular Cluster . ... Globular clusters once ruled the Milky Way. ...

... Empirical and theoretical modeling of 3-D structures in the solar corona is confronted by the tremendous amount of data needed to represent phenomena with a large dynamic range both in size and magnitude, and with a rapid temporal evolution. Octree representation of the 3-D coronal electron distribution offers the right compromise between resolution and size, allowing computation of synthetic images of the solar corona. ... The time interval between images is one day. ...

... Its apparent diameter of 18.0 arc minutes corresponds to a linear extension of about 180 light years; Kenneth Glyn Jones mentions an estimate of even 20 arc minutes from deep photographic plates, corresponding to about 200 light years linear diameter. It appears somewhat smaller in amateur instruments, perhaps about 10 minutes of arc. ... Red: 20x3 minute subs, totaling 1 hour . Green: 20x3 minute subs, totaling 1 hour . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... NEWS . WHEN : typically 3 weeks before the official deadline , i.e. date by which the new DFS release has to be operational on the mountain. ... complete list of performed tests. ... description of the new bugs raised during this Integration phase. ... HOW: Integration Acceptance meeting at DFS level with: . ... If needed, specific Integration acceptance meetings at DFS project level and SCCB meetings may be organized to prepare this Integration acceptance meeting. Before this meeting, . ...

... The spatially resolved structure near the hydrogen emission H line was found in the spectrum taken with the BTA/SCORPIO in June, 2013. ... The fragment of the Nova V1494 Aql spectrum is shown in Fig.1. ... The Nova V1494 Aql has passed the stage of the supersoft X-ray source (SSS) in the period between 218 and 516 days after the visible light maximum (Schwarz et al., ... The spectrum of Nova V1494 Aql taken on 2013 June 9 with BTA/SCORPIO . ... The vertical lines are the lines of night sky emission....

A year is a time interval approximately equal to the period of the Earth's rotation around the Sun. ... 2) a tropical year is a time interval between the Sun's two centre successive passing through the medium point of the vernal equinox (365,2422 days); . 3) anomalistic year is a time interval between the Sun's two centre successive passing through the perihelion of its visible heliocentric orbit (365,2596 days); . ... 6) lunar year includes 12 lunar synodic months (about 354, 367 days); . ...

Hide Zen home . ... GIN . ... contains: value_array @> query_array . ... An example for a Gin opclass can be found in ginarayproc.c. Datum * extractValue( Datum inputValue, uint32* nentries) Returns an array of Datum of entries of the value to be indexed. nentries should contain the number of returned entries . int compareEntry( Datum a, Datum b) Compares two entries (not the indexing values) Datum * extractQuery( Datum query , uint32* nentries, StrategyNumber n) Returns an ...