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. Boson (bose-particle) is a perticle or quasi particle with the whole spin, a system of indentified bosons is ordered to the statistic of Bose-Einstein. Back .

GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...

The possibility of recovery of the vertical distribution of the magnetic field in umbrae by line width differences S.G. Mozharovsky Ussuriysk Astrophysical Observatory of FEB RAS, Ussuriysk, Russia sw@newmail.ru Abstract. This article studies the possibility of recovery of the vertical distribution of the magnetic field in the photospheric layers of sunspot umbra by the Difference of the Line profile Absolute Widths of neutral zirconium ? ... 2) Line profiles for cold models have extended wings. ...

... Научная панорама ? astro-ph/0612220 Бурый карлик - донор в двойной системе с аккрецией . ... astro-ph/0612220 Бурый карлик - донор в двойной системе с аккрецией (A brown dwarf mass donor in an accreting binary) . ... Похоже, что впервые обнаружена аккрецирующая двойная система, в которой донором является бурый (коричневый) карлик. ... Аккреция идет на белый карлик. Масса донора оценивается примерно в 0.05 солнечных масс. http://xray.sai.msu.ru/~polar/sci_rev/146.html#astro-ph/0612220 . ...

The Second U.S. Naval Observatory CCD Astrograph Catalog ( UCAC2 ) Table of Contents 1) Introduction 2) Summary of the Project a) Observations and Instrumentation b) Reductions of UCAC Observations c) Computation of Proper Motions 3) Properties of the Catalog and Important Notes For the User a) Sky Coverage b) Completeness c) Positions, Proper Motions and Error Calculations d) UCAC2 Magnitudes e) 2MASS Photometry f) Non-stellar ... All stars in the UCAC2 have proper motions. ...