We perent radio flux measurements at 5 GHz for a sample of RS CVn-type chromospherically active binary systems made from 1988 to 1992 using the NRAL broad-band interferometer (BBI). The derived radio luminosities are consistent with previous observations but show that radio flaring is a common feature which will affect the results of rotation-activity studies. ... Key words: stars: activity - stars: late type - stars: binaries: close - stars: flare - stars: variables - stars: radio continuum ...

... Arcs are the most typical auroral forms in the premidnight sector auroral oval . ... There are two types of electric fields related to auroral arcs (see, e.g., Johnson et al., ... The first one, polarization electric field, forms withing the arc because of the increased ionospheric conductivity (de la Beaujardiere, 1977, 1981). ... Res., ... Lanchester, B. S., K. Kaila, I. W. McCrea, Relationship between large horizontal electric fields and auroral arc elements, J. Geophys. ... Geophys., ...

Viewing contents of file ;'/net/www/deutsch/idl/idllib/iuedac/iuelib/pro/baserem.pro' ; ;************************************************************************ ;+ ;*NAME: ; ; BASEREM 30 SEPTEMBER 1980 ; ;*CLASS: ; ;*CATEGORY: ; ;*PURPOSE: ; ; To fit a polynomial of order NDEG to a user-specified ; spectral region for removing a baseline from a spectral feature. CALLING SEQUENCE: ; ; BASEREM,X,Y,NDEG,XL,XR,A,YBF,CHIS ; ;*PARAMETERS: ; ; X (REQ) (I) (1) (I L F D) ; Array of independent variables. ...

... OH, = 18 cm Nancay Radio Telescope, OH 18-cm line observations , since 1969 F, Jy 6 4 2 0 0 -1 -2 0 -1 -2 0 -2 -4 -6 30 40 50 1612 MHz I HU Pup August 5, 2009 1665 MHz 4 2 0 0.5 0.0 - 0.5 -1.0 -1.5 1.0 0.5 0.0 - 0.5 4 3 2 1 0 -1 1667 MHz I I 1.0 0.5 0.0 0.5 0.0 22-meter telescope, Pushchino Radio Astronomy Observatory H2O F, Jy 1.0 0.5 0.0 0.4 0.2 0.0 -0.2 -0.4 0.4 0.2 0.0 -0.2 -0.4 -0.6 0.6 0.4 0.2 0.0 -0.2 -0.4 -70 -60 -50 -40 -30 -20 -10 0 Mira-type star R Leo. ...

... В теме В разделе По форуму . ... Темы, интересные всем ? ... Научная панорама ? arxiv:0705.4195 VSOP: The Variable Star One-shot Project . предыдущая тема следующая тема . ... 0 Пользователей и 1 Гость просматривают эту тему. ... arxiv:0705.4195 VSOP: The Variable Star One-shot Project I. Описание проекта и первый релиз данных (VSOP: The Variable Star One-shot Project I. Project presentation and first data release) . ... VSOP - The Variable Star One-shot Project ( http://vsop.sc.eso.org/ ). ...

. Alexey Rastorguev's software . Linsvd Linear least-square problem solution by singular value decompisition of matrix . Lafkin Periodogram calculation (Lafler-Kinman statistics) . FourierPeriodogram Periodogram calculation by Fourier-decomposition . Equ2gal Transformation of the equatorial coordinates and proper motions to the galactic frame . Galorbits.zip Calculation of orbits in three-component Milky Way galaxy model

ASTR 3007 - STELLAR PULSATION COMPONENT P e ter W o o d Research School of Astronomy & Astrophysics TOPICS COVERED · Main types of variable stars · Linear adiabatic pulsation theory => periods of pulsation · Linear non-adiabatic pulsation theory => stability - will a star pulsate? ... Here we see Cepheids and long-period variables (LPVs) (movies from Hartman: http://cfa-www.harvard.edu/%7Ejhartman/) WHY STUDY VARIABLE STARS? ... What could cause the pulsation period to vary from star to star? ...

Kholtygin A.F., Burlakova T.E., Fabrika S.N., Valyavin G.G., Yushkin M.V. Microvariability of Line Profiles in the Spectra of OB Stars: delta Ori A . ... We have studied variability of the spectral lines of the OB star delta Ori A -the brightest component of the delta Ori triple system. ... However, some of the variable features go outside the band, presumably due to either imhomogeneities in the stellar wind from .Ori Aa1 or non-radial pulsations of the weaker components of the system, Aa 2 or Ab. ...

... astro-ph . ... Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . ... Quasar Variability in the Framework of Poissonian Models . ... It is shown that in this very general framework the well established anti-correlation between variability amplitude and wavelength can only be understood as an effect of an underlying spectral component which remains stable on long time-scales, and is redder than the variable component. ...

... we show that the comparison between the calculated and observed numbers of the most ``fragile'' (from the point of view of the binary evolution scenario )   galactic binary types (such as X-ray low-mass X-ray binaries (LMXB), cataclysmic variables (CV),   Be-stars   with compact companions, relative number of visible binary radiopulsars   with normal and compact secondary components) impose certain constraints on the feasible initial ... Phenomenological Kick Velocity . ...

... G., Filippova A.S. Presented by: Filippova A.S Achievements · Refined model based on the celestial-mechanics methods is presented that is a generalized version of the previously developed basic model · Subtle effects are qualitatively explained based on the amplitude-frequency analysis and the computer numerical modelling of the oscillatory pole motion, where the key feature is the Chandler wobble 2 Basic Model of the Polar Oscillations ...

Authors: T.V. Borkova , V.A. Marsakov , . ... It is found that dispersions of spatial and kinematics characteristics of field stars change abruptly when the metallicity crosses the boundary [Fe/H] -0.95 . ... По опубликованным прецизионным наземным и спутниковым измерениям собственных движений, ком