... Using the uvby -photometry and proper motion data for about 5500 F stars within 80 pc from the Sun, we have studied velocity ellipsoid parameters and obtained the following results. 1) The sizw of all wllipsoid semiaxes increase systematically for groups of stars with the decrease of both temperature (at constant metallicity) and metallicity (at constant temperature). ... As a result, each of the three parameters - temperature, metallicity and velocity dispersion - is an age indicator. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

Тема : Хвостатые гостьи 16 (коррекции орбиты) .. Показать сообщение отдельно . ... Сообщений: 19,465 . Коррекция орбиты некоторых периодических комет от 9 июля 2014 года MPEC 2014-N57 .. ... Отправить личное сообщение для Silvester . Найти еще сообщения от Silvester . ...

Dependence of Forbush-decrease characteristics on parameters of solar eruptions . ... We analyze relations between characteristics of an extended ensemble of Forbush decreases (FDs) caused by CMEs from the central zone of the solar disk during the 23 rd solar cycle, on the one hand, and such solar eruption parameter as a summarized unsigned magnetic flux of CME-associated EUV dimmings and arcades, on the other hand. ... Table: parameters of FDs and their solar eruptive sources . ...

... public class CurveFitter . ... static int . ... Field Detail public static final int STRAIGHT_LINE . ... public static final int POLY2 . ... public static final int POLY3 . ... public static final int POLY4 . ... public static final int EXPONENTIAL . ... public static final int POWER . ... public static final int LOG . ... public static final int RODBARD . ... public static final int GAMMA_VARIATE . ... public static final int LOG2 . ... public static double f (int fit, double[] p, double x) . ...

The mass of a star is arguably its most fundamental parameter and for red giant stars it implies a stellar evolution age. Stellar masses and ages have never been derived directly from spectra of red giants. However, using the APOGEE Kepler sample of stars (the APOKASC sample), with high-quality spectra and asteroseismic masses, we have built a data-driven spectral model using THE CANNON (arXiv:1501.07604) to infer stellar age from spectra. ...

... MAXLEN parameter specifies maximum length of the number considered as a 'good' integer. ... If REJECTLONG = FALSE (default), than dictionary returns prefixed part of integer number with length MAXLEN . ... This is a dict_tmpl.c file. # include postgres.h # include utils/builtins.h # include fmgr.h #ifdef PG_MODULE_MAGIC PG_MODULE_MAGIC; #endif # include utils/ts_locale.h # include utils/ts_public.h # include utils/ts_utils.h typedef struct { int maxlen ; bool rejectlong ; } ...

... Based on the measurements of the Stokes parameters in the continuum and in the broad 0.6563 nm hydrogen emission line obtained with the 6-m telescope for the Seyfert galaxy Mkn 6, secular variability of the hydrogen line profile polarization was discovered; a time lag of less than 2 days between the continuum flux and the polarized continuum emission was determined which corresponds to the size of the region where the polarization of the continuum occurs, less than 0.001 pc. ...

Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Moscow, 2008 Acknowledgements A.Belinskiy M.Kornilov A.Tokovinin M.Kuznetsov P.Kortunov E.Gorbovskoy SAI administration some SAI students Pulkovo solar station (KHSS) staff RFBR support MAVEG Gmbh Why to study optical turbulence and some other relevant ... Mean seeing by DIMM data for this night is 1''5. ...

Organisers: Philippe Lebacque (Laboratoire de Math matiques de Besan on ) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institute for Information Transmission Problems) , Alexey Zykin (Laboratoire Poncelet, State University Higher School of Economics, IITP) . ... General Information . ... The classical differential Galois theory studies symmetry groups of solutions of linear differential equations. ... Poncelet Laboratory web page . ...

... 0,50-0,59 (0,50-0,59) µm . ... Swath Width . ... at end of visibilty area . ... Visibility Area Width . ... Ground Resoultion in Nadir: . along swath . ... across swath . ... Ground Resolution at End of Visibilty Area: . ... 200 lines per second . ... at least 200 . Ground resolution corresponds to normal flihgt altitude 650 km. For more information send a mail to: info@sputnik.infospace.ru . ...

... In laboratory the design and a manufacturing techniques mirror aspherical optics are developed ("fokon", ellipsoid, aspherical mirror).Such optical elements are made of widespread aluminium alloys on the standard equipment without use diamond turning. ... Using: optical blocks of not image optical devices for transitions, collimation, focus (concentration) radiations in a wide spectral range from UV to IR. Focusing and collimation of light; . ... circle aperture/ring aperture; . ... Back Forward . ...

... Bad Astronomy . ... Mad Science . ... Universe Today . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... type 1a supernovae seem most useful . ... This is a bright, massive star that explodes after fusing all the light elements in its core. ... That means we can calculate how far away it is. ... This is exactly what we are trying to do with these supernovae; look far enough away that any deviations from flatness of the Universe can be seen. ... Phil Plait . ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... In electron-positron colliders, effect of the lattice modification by opposing bunch focusing on the equilibrium radiation emittance is important at high values of the space charge parameter, so one should correctly evaluate this dynamic radiation emittance of the weak beam, which may differ a lot from the nominal emittance, already in the linear beam-beam force model. ... The linearized beam-beam force is equivalent to focusing insertion in linear lattice of the collider. ...

... All circuit parameters have been presented in a symbolic form. ... To use the program you will need a CIR file (PSpise, DesignLab file) of your circuit. CIR file examples have been enclosured: bpasside.cir, test1.cir, test2.cir, test3.cir, test4.cir, laksamp.cir, bridge.cir, uA741acf.cir, quartz.cir. ... Ideal operational amplifier (nullor) * Nname n1 n2 n3 n4 * * In the ideal op amp data, (n1,n2) represent output nodes, * (n3,n4) represent input nodes (noninverting, inverting). ...

... 5 1/ 2 Closing the feedback lo op: 1st option · Feedback efficiency 2NepEep f = Lp 4 3 w1 R 3 E1 w2 c E2 ( Eep E1 if E1 E2) · Pair pro duction rate Nep = · Soft (synchrotron from secondary pairs ) photon field: Eep 2 eB E2 1/2 f w w b , w2 = Es = 4 Es 2 mec2 mec · Hard ( inverse Compton from primary pairs ) photon field: 2 2 wb 3 R w1 , E1 = 3 2Ts wb = 4 R T ct 0 0 mec2 wb is thermal background energy density ...

QUASI PERIODIC ORBITS IN THE VICINITY OF THE SUN- EARTH L2 POINT AND THEIR IMPLEMENTATION IN SPECTR-RG MILLIMETRON MISSIONS I VA N I L I N , A N D R E W T U C H I ... RUSSIAN ACADEMY OF SCIENCES 24th International Symposium on Space Flight Dynamics Laurel, Maryland, 5-9 May, 2014 APPLICATION OF QUASI PERIODIC ORBITS NEAR LIBRATION POINTS ESA space telescope Gaia launched on 19.12.13, direct ... Dynamics and Mission Design near Libration Points - Volume 1. ...

SAI VO . ... Web Services . Catalog Access Services . ... SAI Web Services . ... This service aims to automatically match stars in FITS image provided with catalogue and add the correct WCS keywords to its FITS header. ... Service Web Interface . ... The service is available here To use it, you has to provide the image as a Base64-encoded string, along with the rough information on image field of view size and center (the latter may be deduced from FITS header keywords like 'RA' and 'DEC'). ...

Publications by Ilya Livshits (1975) . ... Открытые магнитные поля на Солнце и характеристики солнечного ветра у Земли // 2011, Астрономический журнал, том 88, ? ... Кацова М.М., Лившиц И.М., Сикора Ю. Вращение Солнца как звезды по полному излучению короны в зеленой линии // 2009, Астрономический журнал, ? ... Contrast of Coronal Holes and Parameters of Associated Solar Wind Streams // 2009, Solar Physics. ... o V.N. Obridko , B.D. Shelting , I.M. Livshits , A.B. Askerov . ... И.М.Лившиц, М.А.Лившиц. ...