... dust_AbsXSec . Absorption Cross section. typedef void . ... Calculates the equilibrium temperature given the absorption cross section and a radiation field. double . ... Calculates the absortion cross section of a species/size of dust grain . ... The grain absorption cross section . ... The absorption cross section of the grain . ... Calculates the equilibrium emission at wavelength lambda from a (large) grain at temperature T and with absorption cross section xsection. double dust_EquiT . ...

... Classes . ... casa . casa::HyperGeometric . ... Hypergeometric distribution. ... HyperGeometric ( RNG *gen, Double mean=0.5, Double variance=1.0) . Construct a random number generator for an hypergeometric distribution. virtual . ... These function allow you to manipulate the parameters (mean & variance) described above through the base class. virtual Vector < Double > . ... virtual Double casa::HyperGeometric::operator() . ... virtual Vector < Double > casa::HyperGeometric::parameters . ...

... The Network Time Protocol (NTP) is used to synchronize the time of a computer client or server to another server or reference time source, such as a radio or satellite receiver or modem. ... Information on the NTP architecture, protocol and algorithms can be found in the Further Information and Bibliography page. The Building and Installing the Distribution page presents an overview of the procedures for compiling the distribution and installing it on a typical client or server. ...

. This Directory contains Model of distribution of density, temperature and effective collision freguency of electrons. Yu.K.Chasovitin. 1998. This Directory contains The program RIM98 for calculating the parameters of the ionosphere to use the "Reference Ionospheric Model-98" (RIM-98).Yu.K.Chasovitin. 1998.

... The absolute flux calibration of NICMOS will be calculated from observations of standard stars with known flux distributions F( ). ... In order to expand the set of IR standard stars in the appropriate flux range for NICMOS, M. Rieke, R. Thompson, and collaborators at the University of Arizona are making photometric observations of solar-analog stars, which will be used to normalize the solar spectrum to the observed IR magnitudes. ... Relative flux references accurate to 1.5% for standard...

Download Izmccd (~2.7 MB). ... a) a choice of the best mode of measurements of stars and objects ("Properties/Measurement"), . b) a choice of reference stars. ... 1) necessity of presence on an image of a plenty of stars (we recommend to apply this mode, if on the frame of reference stars is more 100) . ... Sx and Sy depend from residuals at all reference stars (reference stars are marked by blue color). ... These residuals are the image of the star a minus function of a profile for each pixel. ...

... Step 1: The magnetic field line tracing from the satellite position up to magnetic equatorial plane using IGRF magnetic field model. Step 2: Tracing back from the point (produced on the Step 1) to the Ionosphere (by using only dipole magnetic field) . ... The magnetic field line tracing from the satellite position up to the Ionosphere (the stop trace altitude 110 km) using Main (dipole) + Extraterrestrial magnetic field model (for example, Tsyganenko [1987], or [1989], or [1990] ) . ...

... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...

... BLoCXS is a Bayesian code that uses Markov-Chain Monte Carlo and Data Augmentation techniques to analyze CCD-resolution X-ray spectra in the Poisson regime. BLoCXS can be used to . fit common emission models to low-counts spectra . identify narrow emission lines in low-resolution spectra . identify Gaussian emission lines (with fixed/unknown location and width) . compute profile posterior distributions, . simulate data from posterior predictive distributions, . ...

... To derive the motion of a penny dropped inside an airliner moving at 600 miles/hr (about 1000 km/hr)--should we calculate it with respect to the interior of the airliner, or with respect to the ground? ... And if a similar penny is let go inside an orbiting spaceship--should its motion be calculated relative to the interior of the spaceship, or relative to the Earth outside? ... Each such choice is known as a frame of reference . Some possible frames are -- the interior of the airliner, . ...

... 5em -Binney, J. & Tremaine, S., 1987, Galactic Dynamics, Princeton University Press, Princeton, NJ . Bisnovatyj-Kogan, G.S. & Moiseenko, S.G., 1992, AZh 69, in press . Brainerd, J.J., 1992, Nature, 355, 132 . Chugaj, N.N., 1984, Pis'ma Astron. ... Hartmann, D., Epstein, R.I. & Woosley, S.E., 1990, Astrophys. J. 348, 525 . Imshennik, V.S. & Nadyozhin, D.K., 1992, Pis'ma Astron. ... Kornilov, V.G. & Lipunov, V.M., 1983, Astron. ... Lipunov, V.M. & Postnov, K.A., 1987, Astrophys. ...

... A good introduction to optimization theory and a description of the the modern minimization techniques can be found in Gill, Murray and Wright [1]. Bard [2] deals with the particular problem of parameter estimation; chapters concerning the different estimators and their properties, and the interpretation of the estimates are remarkable. ... 1] Gill P.E., Murray W and Wright M.H. Practical Optimization. ... 3] Gill P.E., Murray W. Algorithms for the solution of non-linear least squares problems. ...

Fast algorithm of reconstruction of absolute conductivity distribution in a cross-section of human body by measurements of electrodes' potentials on the skin surface is described. ... This paper describes fast algorithm for absolute conductivity reconstruction and results of its application. ... The main problem under the absolute image reconstruction is obtaining of reference data, corresponding to the object with uniform conductivity and the same electrode positions. ...

... N.V. Bystrova " The Great Circle of the Magellanic Stream ", Galaxy Disks and Disk galaxies, 2001, Vol. 30, p.81, J.G. Funes, S.J. and E.M. Corsini ( eds. ), ASP Conference Series. ... M.A. Cervantes, A.A. Lipovka and M. Molinar Tavares " Double slit diffraction of three interfering beams in the Fresnel region ", Rev. Mex. ... Поиск спектрально-пространственных флуктуаций CMBR на радиотелескопе РАТАН-600 ", И.В. Госачинский, В.К. Дубрович, Г.Н. Ильин, В.А. Прозоров, стр.51. ... 2001. ...

... Classes . ... gTime Class Reference . This class implements time calculations. ... gTime (double ai_jDays=0) . ... gTime (const gTime &timeSrc) . ... Set the time value of the time object to the julian day of year, day. ... operator= (const gTime &timeSrc) . ... Returns the time GMT value in Julian days. ... Returns the time_t value of the gTime Object. ... Returns a gTime object setted with the actual machine time. ... gTime Object assigned with real machine time. double gTime::getGmtTm . ...

Next: Generation from In-Orbit Data Up: ZODIACAL Previous: Description Contents . ... The intensity of the spectrum is scaled to the reference intensity. ... The binary table ZODIACAL_CTS lists the expected photon rates for the different filters at the reference intensity. ... keyword . ... name . ... may vary . ... degree] x-coordinate of reference bin . ... bin] address of reference bin x-direction . ... reference intensity of spectrum [S10(V)] . ... zodiacal light flux at reference intensity . ...

Blackholes2 Forum Message . Forums: . ... Reference Please . ... Posted by Richard Ruquist on October 3, 2003 01:58:26 UTC . ... A few scriptures referencing this. - sound1 - October 3, 2003 - 04:40 UTC . ... Thanks for the references - sound1 - October 3, 2003 - 19:28 UTC . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... An examination of Figure 5 shows that the FSRQs in the DXRBS sample cover a much wider range of parameter space than those in the two previously existing complete samples of FSRQs , the 1 Jy and S4 samples ( radio data for these samples were taken from Stickel et al. 1994 and Stickel K?hr 1994, while X-ray data for these ... Also, the mean of the DXRBS sample's X-ray luminosity differs from that of both the 1 Jy and S4 samples' only at the 93 and level respectively. ...

... Subject and Problems of Stellar Astronomy. ... Plane of Galaxy, Methods of Its Location Determination. ... Stars Distances. ... Other Methods of Stars Distances Determination. ... Tangential Velocities, Their Determination by Self-Motions. ... Determination of Solar Apex and Spatial Velocity by Radial and Spatial Velocities of Stars. ... Features of Orientation and Parameters of Peculiar Stellar Velocities Ellipsoid. ... General and Selective Light Absorption in Galaxy. ... Darc Clouds in Galaxy. ...