... Using the central limit theorem, the total noise can be approximated by a Gaussian or normal distribution which has the frequency function : . ... where is the mean intensity of the source. ... In the statistical analysis of the probability distribution of data several estimators based on moments are used. ... For a normal distribution, these moments are and while for a Poisson distribution are and . Besides these moments other estimators are used to describe a distribution e.g. median and mode . ...

Next: Redshift Distribution Up: Sample Identification Previous: Previously Identified Sources . ... In Figure 3, we plot the redshift distribution of DXRBS FSRQs opposite that of the 1 Jy and S4 samples. In Figure 4, we plot the redshift distribution of DXRBS BL Lacs opposite the Slew and 1 Jy samples. ... The apparent deficit of objects at the very highest luminosities is a result of the smaller area of sky covered by DXRBS compared to, e.g., the Slew and 1 Jy samples. ...

Next: A Gravitational Wave Map Previous: Critical Frequencies and Gravitational . In this section we consider the GWB spectrum as such, that is, we study how dimensionless strain metric amplitude h is dependent on frequency. For a sample of N independent binaries emitting GW at a given frequency the net result is . ... are, respectively, effective distance to the sample and effective mass of the binaries (in solar units) producing the GW radiation at the frequency . ...

define N 1024 set x=1,$N erase window 1 1 1 1 limits 0 $N -.7 0.7 box ptype 1 1 # generate a lot of points to uniformly cover - 0.5 to 0.5 # -and- at the same time do averages of 10 samples = pseudo-gaussian set y=x*0 do i=1,10 { set t=random($N)- 0.5 set y=y+t } set z=x*0 do i=1,10 { set t=random($N)- 0.5 set z=z+t } echo * Uniformly Distributed between - 0.5 and ...

... 238, Astronomical Data Analysis Software and Systems X, eds. F. R. Harnden, Jr., ... We developed the Distributed Analysis Software Hierarchy (DASH), an object-oriented data reduction and data analysis system for efficient processing of data from the SUBARU telescope. ... Figure 1: DASH application model (SUBARU restaurant) . There are three subsystems of the Subaru computer system: the Subaru Observation Software System (SOSS), the Subaru Telescope data ARchive System (STARS), and DASH. ...

... Let be a random deviate which follows a Poissonian probability distribution about the expectation value . Although the Poisson distribution itself is only defined for integer , one can find the following continuous `envelope function' to the Poisson values: . ... where is the gamma function . ... The expectation value of is . ... Equation 5 is used both in the present program and in boxdetect to estimate the null-hypothesis probability distribution of the weighted sum of Poissonian images. ...

... Institute of Physics Publishing, Dirac House, Temple Back, Bristol, UK, e-mail: anne.dixon@ioppublishing.co.uk . ... I shall describe Institute of Physics Publishing's efforts in this area, including our HyperCite technology, which allows users to roam the literature, backwards and forwards in time, and to experience fascinating information trails. ... Finally I should explain that STACKS(tm) has many other uses beyond linking from existing Institute of Physics Publishing customers. ...

http ://hea-www.harvard.edu/ AstroStat /slog/2008/eotw-chisq- distribution / Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http ://wordpress.org/?v=3.4 http ://hea-www.harvard.edu/ AstroStat /slog/2008/eotw-chisq- distribution /comment-page-1/#comment-308 Alex Sun, 27 Jul 2008 01:52:08 +0000 http ://hea-www.harvard.edu/ ... Thanks, Aneta, very useful comment. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... ATNF facilities . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ...

... The OpenContent license is available from http://www.opencontent.org/ . LICENSE . Terms and Conditions for Copying, Distributing, and Modifying . ... You may at your option charge a fee for the media and/or handling involved in creating a unique copy of the OC for use offline, you may at your option offer instructional support for the OC in exchange for a fee, or you may at your option offer warranty in exchange for a fee. You may not charge a fee for the OC itself. ... NO WARRANTY . ...

... One of the most widely used tools of Fourier analysis is the Parseval theorem. It enables the experimentalist to view how the `energy' in the signal is distributed among frequencies. The Fast Fourier Transform (FFT) algorithms have made power spectra one of the obvious diagnostics tools during data acquisition, and energy maps are a versatile alternative. ... The result is an energy map (Fig. 9), showing the distribution of energy corresponding to the wavelet map (Fig. ...

God Science Forum Message . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... God and Science | ... Distributed Unconsciousness (DU) . ... Posted by Michael Trout on May 2, 2006 09:10:07 UTC . ... Link: - h0riz0ndu - May 3, 2006 - 04:54 UTC . ... Consciousness? - imback - June 12, 2006 - 05:02 UTC . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Generalized maximum entropy method and its application to antenna pattern reconstruction. In this paper the Generalized maximum entropy method and its application to the reconstruction of two-dimensional complex functions (namely, far-field antenna pattern distribution) from nonuniformly distributed samples are considered. ... It is shown that the Generalized maximum entropy method is sufficiently stable in the presence of errors. ...

Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...

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... Bojan Nikolic web pages (r. 329) . ... The OOF data reduction software is made available under the terms of the GPL V2 or (at licensee?s option) latter licences. ... Also, please note that this is primarily a research system that has grown during investigation and application of the OOF technique. ... The first generation of the OOF system that I wrote was designed to work within the software package that J. S. Richer wrote for reduction of with-phase holography for the JCMT. ... Build system: . ...

Digital FIR Decimating Filter for GALFA Spectrometer Documented by Wonsop Sim, July 30th, 2004 Introduction: The GALFA Spectrometer Board requires a decimating FIR filter to reduce the bandwidth from 100MHz by a factor of fourteen to 7.14MHz. ... A filter with symmetric coefficients can reduce the number of multiplies in half by pre- adding input samples. ... The coefficients have been grouped so that they correspond to the fourteen pre- added input samples that are calculated in a filter section. ...

... Makarov D.I., Karachentsev I.D., Burennkov A.N., Tyurina N.V., Korotkova G.G. "Rotation curves of edge-on galaxies" . ... Karachentsev I.D., Makarov D.I., Sharina M.E., Dolphin A.E., Grebel E.K., Geisler D., Guhathakurta P., Hodge P.W., Karachentseva V.E., Sarajedini A., Seitzer P. "Local galaxy flows within 5 Mpc" . ... Karachentsev I.D., Makarov D.I. "Local Field of Galaxy Velocities" . ... Karachentsev I.D., Makarov D.I. "The Galaxy Motion Relative to Nearby Galaxies and the Local Velocity Field"...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Distributions of impact velocity on Phobos for the sample of Long Period comets (top), Jupiter Family comets (middle) and asteroids (bottom) used in our sporadic meteoroid flux model. ... 100 m as determined from spacecraft images is consistent with a 50/50 contribution from the two meteoroid populations in our model. ... Last Revised: 2014 November 20th . ...

The files in this directory are samples for use in developing observing queue files for XmTel. Messier.edb and YBS.edb are distributed with the basic XEphem source code. Other XEphem files that are included in the full supported distribution are in the same format.