... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

Next: Results Up: HST Image Restoration with Previous: The FMAPE Algorithm . ... Up to now, we have considered to be an adjustable parameter belonging to object space that is constant for a given image. ... To solve this problem several approaches have been presented in this conference (Katsaggelos 1994, Lucy 1994, Puetter 1994, Stark et al. ... Our approach consists in the introduction of a space variant hyperparameter in the Bayesian framework. ... 3 is space variant in the object space. ...

... The first of the equations defines the position of the spectral orders, m , in the raw image, while the second equation gives, for each order, the dispersion relation in one dimension. ... where the coefficients are computed using least squares techniques on a grid , i.e. sample number and line number of points located within the spectral orders of the image. These points in the grid are found automatically by an order--following algorithm, normally using the FLAT or STD image. ...

To give a relative path to a file below your current directory: pwd (prints the current directory) /home/eucs/jane (the full pathname to the current directory) ls -l presentation/docs/oview.html (lists information on the file) . ... To define a file that is in another directory: pwd (prints the current directory) /home/eucs/jane/presentation/docs (the full pathname) cd ../illustrations (use relative pathname) pwd (check the current directory) /home/eucs/jane/presentation/illustrations . ...

... Classes . ... casa . casa::UnitName . ... handles physical units More... #include < UnitName.h > . ... UnitName (const UnitName &other) . ... UnitName (const String &tag, const UnitVal &kind, const String &name= EmptyString ) . ... UnitName (const Unit &tag, const String &name= EmptyString ) . ... Get definition value of the unit. const String & . ... String . ... String getName() const will return the unit name . ... Get the name tag of the defined unit. const UnitVal & casa::UnitName::getVal . ...

Contents] [Prev page] [Next page] [Index] . ... Positioning HTML Content Using Styles . Positioning HTML Content Using the <LAYER> Tag . ... Absolute Positioning . ... Creating Positioned Blocks of Content Dynamically . Writing Content in Positioned Blocks . ... Positioning the Flower Layers . Positioning and Moving the Fish and Poles . Defining the onLoad Handler for the BODY Element . ... Adding Another Layer to Contain the Reverse Fish Image . ... The Initialization Functions . ...

... We study ergodic properties of random maps defined as collections of nonsingular maps $f_1,\dots,f_w$ from a compact metric space $(X,\rho)$ into itself taken with probabilities $p_1,\dots,p_w$ ($\sum_i^wp_i=1$) and considered as Markov processes on $X$. ... In the first situation, when the random map is expanding on average, we mainly follow ideas borrowed from the theory of piecewise expanding maps and the corresponding Banach space is a version of the space of functions of bounded variation on $X...

Next: The Stopping Radius in Up: ``Ecology'' of Magnetic Rotators Previous: The Environment of the . Now we consider qualitatively the effect of the electromagnetic field of a magnetic rotator on the accreting plasma. ... What is important is that both relativistic particles and magnetic dipole radiation will transfer their momentum and hence exert pressure on the accreting plasma. ... 2) The pressure of the accreting plasma is high enough to permit the plasma to enter the light cylinder . ...

... The first step to improve the FORS calibration is therefore to obtain data to allow a computation of the illumination correction across the field. ... Another limitation on the calibration accuracy has been the brightness of the Landolt standards which have forced the use of extremely short exposures introducing small but non-negligible shutter-time errors and also resulting in a very small number of useful standards per frame. ...

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

... Near, far field and the sky ovverlap at 100 km . Relative strengths of linefeed/yagi sidelobe detections . ... 18 Amin . ... Diameter=(K*lambda)/hpbw (where k depends on the edge taper .. typically k=1.2) The hpbws are different for the linefeed and yagi so their illumination patterns are different. ... At this height, the linefeed is still in the near field while the yagi is in the far field. The angles and distances of the two beams at 100 km are shown below (assuming the far field.. ...

... Equations are obtained for the plane relative motion of the system on the taut thread (on the assumption that the centre of mass of the system moves along the Keplerian elliptic orbit). ... The torques of gravitational forces, aerodynamic pressure, aerodynamic friction and the aerogradient effect are taken into account. ... First, the problem is investigated in case of taut thread and Keplerian elliptic motion of the centre of mass. ... In a general case the free motion is bound to become connected....

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. Main Sections LabIR main page . Instrument page . Documentation . Science Publications . Special Sections Software Page . Inside the Lab . LabIR staff . Companion Pages Skysoft Home . Tirgo Page . Tirgo Archive . LabIR Hotlist . Lunar occultations . AO star finder . Simple calculator .

... A three-cell test section roughly representative of the primary mirror was provided for this test by the Steward Mirror Lab. ... Additionally, the tests are intended to determine relative airflow vs. pressure drop characteristics for each of the air flow patterns so the results can be evaluated both as a function of flow rate and of pressure drop along the flow path. ... The bottom (top as installed) was cut out so it could close the chamber for heating and be removed for the cooling tests. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... solve : find optimum fit in a grid of model spectra . ... It initiates an optimisation by starting with a grid of theoretical spectra, defined by model or read_grid , a set of starting parameters and an observed spectrum. ... The parameters to be optimised include: T eff , log g , n A , v sin i , v rad being effective temperature, surface gravity, an abundance variable, rotation velocity and radial velocity for one or two stars, and R 2 / R 1 being the relative radius of the second star, if present....

function drat, line1 , line2 , edens , DEM , logT , fx1 = fx1 , fx2 = fx2 , _ extra =e ;+ ;function drat ; return the ratio of fluxes in one line relative to another line ; for a variety of densities ; ;syntax ; frat=drat( line1 , line2 , edens , DEM , logT , fx1 = fx1 , fx2 = ...

This module provides for the generation of Expires HTTP headers according to user-specified criteria. ... This module controls the setting of the Expires HTTP header in server responses. The expiration date can set to be relative to either the time the source file was last modified, or to the time of the client access. ... ExpiresByType . ExpiresDefault . The ExpiresDefault and ExpiresByType directives can also be defined in a more readable syntax of the form: . ... Module: mod_expires . ...

XMM-Newton Timing Monitoring Antonio Martin Carrillo Tutor: Marcus Kirsch July 24, 2006 Antonio Martin Carrillo 1 Overview XMM-Newton Pulsars Crab pulsar Relative time accuracy 2 epoch folding Conclusions Next steps Antonio Martin Carrillo 2 XMM-Newton · Launched in December 1999 · 3 independent CCD cameras called EPIC (European Photon Imaging Camera) · 2MOS and 1PN ...