... Iron abundance in the atmospheres of components of the binary system 41 Draconis . ... 5B Iron abundances, FeI and FeII lines equivalent widths, and microturbulence velocities were found for the components of a highly eccentric spectroscopic and interferometric binary system 41 Dra from high resolution spectra obtained close to the periastron. Weighted mean values of iron abundances in the atmospheres are lgN(Fe) = 7.66 ± 0.03 and lgN(Fe) = 7.72 ± 0.03 for the component a and b, correspondingly. ...

ON THE BELIEVABILITY OF POLAR SPOTS P. BRENDAN BYRNE Armagh Observatory College Hill, Armagh BT61 9DG, N. Ireland Abstract. Polar spots in Doppler Imaging maps of rapidly rotating late­ type stars, especially the active components of RSCVn binaries, represent a major break with the solar paradigm, within which spots are only found at low latitudes. ... Introduction The technique of Doppler Imaging offers the potential to resolve in some detail spot distributions on active late­type stars. ...

Find Similar Abstracts . ... Determination of the component masses and inclination of a binary system containing a pulsar from relativistic effects . ... BINARY STARS, ORBITAL ELEMENTS, PULSARS, RELATIVISTIC EFFECTS, STELLAR MASS, APSIDES, DOPPLER EFFECT, FREQUENCY SHIFT, INCLINATION . ... Use: Authors Title Abstract Text Text Query with Keywords Return: Query Results Query Form Database: Astronomy Instrumentation Physics and Geophysics ABSTRACT QUERY USER FEEDBACK HELP ...

... Abstract Convert a spacecraft clock format string to number of "ticks". ... Detailed_Input sc is the NAIF ID number for the spacecraft whose clock string is being converted. clkstr is a character string representing a spacecraft clock time, WITHOUT PARTITION NUMBER. ... scencd_c converts a clock string to the number of ticks it represents since the beginning of the mission, and so uses partition information. sctiks_c just converts to absolute ticks. ... The SCLK string includes a partition number. ...

. Home . Rationale . Programme . Participants . Venue . Proceedings . Contact . Presenter: Raffaella Morganti (ASTRON) . Abstract: I will review the observational picture of the various gaseous components in Centaurus A. In addition, I will discuss the relation (if any) of these components and the presence of the radio source and, in particular, the presence of the radio jet. go back . CSIRO 2009 Legal Notice / Privacy Statement Last modified: 15/11/2010

... OOF software . ... Memos . ... Raw data . ... We present a Bayesian approach to calculating the coefficients that convert the outputs of ALMA 183 GHz water-vapour radiometers into estimates of path fluctuations that can be used to correct the observed interferometric visibilities. ... Please note that the files"COPYING" in each of the distribution packages have GPL listed but it is in fact LGPL which applies. ... This is the raw data from the SMA used in the analysis shown in Section 4 of the memo. ...

... A technique allowing automatic representation by a relatively small number of independent parameters based on the principal component analysis of data sequences is presented. ... In recent years the spectrum of observed astronomical data can be characterized as greatly varied. ... In this instance, the problem of initial description and classification of newly-observed data becomes most urgent, especially if there is a lack of preliminary observational material and theoretical expectations. ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... Based on a previously compiled catalog of fundamental astrophusical parameters for nearby disk F stars (containing, in particular, metallicity, isochronal ages, and space-velocity components), with were derived from published astrometric data, the Galactic orbital elements were calculated for 1630 stars. ... The radial and vertical metallicity gradients were found for mixed-age stars and for a few narrow age ranges. ...

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

... Among the objectives of Principal Components Analysis are the following. dimensionality reduction; љ . the determining of linear combinations of variables; љ . ... identification of groups of objects or of outliers. ... Finding a set of principal axes allows the objects to be adequately characterised on a smaller number of (artificial) variables. ... Reduction of dimensionality is practicable if the first new axes account for approximately 75 % or more of the variance. ...

Proposal Identi cation No.: P1745 Date Received: 2003-Oct-03 02:09:03 Technical Page Proposal Type: Regular General Category: Pulsars Observation Category: Total Time Requested: 16 Hours Proposal Title: Investigation of Mode switching phenomenon in single-component pulsars ABSTRACT: We request 16 hr of telescope time for observations of a small sample of pulsars with single-component pulse pro les. ... This proposal requires coordination with Punta Salinas radar within the band 1222-1381 MHz.. ...

... 2009: . ... New Wolf-Rayet Type Star. ... It was discovered that the peculiar velocity of the star is about 50km/s, and that it was discarded from a young star cluster. ... Based on the observational data from the 6-m telescope and from other sources, it was shown with high reliability that chemically peculiar stars with strong depressions in their continuum energy distributions possess the magnetic fields and rotation periods 2 and 3 times larger, respectively, than the stars with weak depressions....

... Electronic Raman scattering in Tl 2 Ba 2 CuO 6+ d : Symmetry of the order parameter, oxygen doping effects, and normal-state scattering. Abstract: . Single crystals of the optimally doped, moderately and strongly overdoped high-temperature superconductor Tl 2 Ba 2 CuO 6+ d (Tl-2201) with T c = 80, 56, and 30 K, respectively, have been investigated by polarized Raman scattering. ...

... We apply Multichannel Singular Spectrum Analysis (MSSA, or extended EOF) technique to filter GRACE data and separate the principal components (PCs) of different periods. We performed data averaging over the large river basins of Russia. ... In every point ij on the map we have time series Aij(tk) of length N. The trajectory matrix for every XAij should be build and incorporated into large block matrix X as follows: X Aij Aij (t0 ) Aij (t1 ) .. ... Sum of PCs 1-10 for particular rivers basins. ...

XMM-Newton Science Analysis System . ... Meta Index . This task fits a linear combination of real-valued image components to a Poissonian, integer-valued image. ... Fitting algorithm: . Constraints on the model components: . Truncated Poisson fitting: . ... Input Files . Output Files . Algorithm . ... Index . XMM-Newton SOC/SSC -- 2008-07-02 ...

... Among simple infinite-dimensional graded Lie (super)-algebras two are especially interesting for the potential applications. ... The talk is based on joint work of the author and V.Kac and will present an approach to constructing the representation theory of these algebras, in particular the generalized Verma modules and complexes of the Verma modules. ...

Abstract -- Calculations are performed for the linear polarization of starlight due to extinction by aligned dust grains when the starlight traverses a medium with irregular magnetic fields. This medium is intended to represent the optically thick components of interstellar clouds which are observed to make little, if any, contribution to the polarization of starlight. ...

... Soon it?ll not be qualified for [MADS] because I saw some abstracts with the phrase, compressed sensing from arxiv.org. ... Title: Compressed sensing imaging techniques for radio interferometry . ... The theory of compressed sensing demonstrates that such measurements may actually suffice for accurate reconstruction of sparse or compressible signals. ... Tags: compressed sensing , ill-posed , image reconstruction , interferometry , inverse problem , MADS , Nyquist-Shannon sampling theorem . ...

Next: Pass band integrations Up: Fit scenarios Previous: Triple with velocity curves Contents . Fit all three masses, as well as the inclination of one of the pairs. That not any combination of orbital inclinations is allowed can be seen from the fact that the triple consists of two double-lined binaries and only one mass solution exists for a given inclination. ... Christian Hummel 2015-04-28 ...

... Phase light curves of binary model that consists of a primary component with mass M 1 and a secondary component with mass M 2 . ... The input parameters of the problem are the accretion rate onto the binary components ( ), the component mass ratio q = M 2 /M 1 , the orbital inclination to the line of sight , the eccentricity e, the rotation angle of the apsidal line relative to the observer , and the parameter c characterizing viscosity. ...