Next: Imaging Up: Calibration Strategies Previous: High precision polarimetric calibration . In August 1994, the nominal flux density of the ATCA's primary flux calibrator, 1934-638, was revised to give better agreement between the ATCA's flux density scale and the flux scales used in the northern hemisphere (the VLA in particular). ... This introduces a problem when mixing data (either combining or just comparing) calibrated before and after this change. ...

. Next: Generation from In-Orbit Data Up: EPN_ADUCONV Previous: Description Contents . Ground calibration data obtained from extensive measurements of X-ray emission lines and synchrotron lines (mainly flat fields). The gains of the individual readout nodes are derived by comparing the positions of the CTE corrected calibration lines (in ADU) with their energies. Michael Smith 2011-09-20

Jeff mock supplied 6 different types of filters to use with the high resolution mode of the mock spectrometer. ... Plots were made of the time domain voltage response as well as the frequency domain power response. A decimation of 10 was used for the filter decimation. this gave a filter length of 80 coeff. The plots compare the filter shapes for these filter types (.ps) ( .pdf ) . ... Each color is a different filter type . middle: spectral density reponse for each filter . ...

... Simulations of a distant cluster of galaxies at z 2 are presented for the HST cameras COSTAR-corrected FOC, WFPC II, the Advanced Camera, and for an adaptive optics system that may equip a future 8-meter class telescope. ... Keywords: cluster of galaxies, simulations . ... Simulation of a Distant Cluster of Normal Galaxies . ...

Direct Electron Imaging Using Back Thinned CCD's . ... where, Vim is the maximum radial emission energy of photoelectrons from the cathode (eV), Vs is the cathode to anode voltage (V), k is the spatial frequency (2 p lp/mm), L is the cathode to anode spacing of the proximity focused diode (mm), d is the field-free region thickness(mm), h is the backscattering coefficient, (G/G 0 .) is the ratio of the average EBS gain of the secondary electrons to the primary gain, and W is the CCD pixel pitch (mm). ...

. Album : asv-album :: Travels to distant places and countries :: 1997/08 Kyoto, Nara (Japan) :: 20/08 Nijo castle (ancient shogun palace). Assembly opening. Maiko . Up . Nijo castle, Shogun palace. The main building. Comparing to temples and shrines, royal architecture looks modest. Next >> . Photo album generated by album generator from Marginal Hacks by David Madison on Tue Jun 23 14:46:11 2015 .

... This thread uses PINTofALE to generate a simulated Chandra spectrum. ... define a DEM . ... pset marx .par ExposureTime=50000 OutputDir='sim_ marx ' \ ; GratingType='NONE' DetectorType=' ACIS-I ' SourceFlux=-1 \ ; SpectrumType='FILE' SpectrumFile='spec_ marx .dat' \ ; SourceType='POINT' DitherModel='INTERNAL' ; marx TSTART=2006.46 ; marx2fits sim_ marx / spec_ marx .evt ; dmextract infile= spec_ marx .evt[EVENTS][(x,y)=circle(4018,4141,10)] ; [bin pi=1:1024:1] outfile= spec_ ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

... Avec le plus simple des ?quipements, vous aussi pouvez effectuer des mesures de masse semblables ? ... Des objets lourds et compacts dont la masse doit ?tre mesur?e. Je me suis servi de deux gros boulons, pesant 50 et 120 grammes. Une montre capable de compter les secondes . De petits poids. (j'ai employ? des poids de cuisine mesurant 0-500 grammes) . ... Avec une balance , cherchez les poids m 1 et m 2 des deux objets, et de m?me le poids m 0 de la pince utilis?e pour les maintenir. ...

Next: HST Paper Products: A New Way to Look at HST Data . ... After providing on-the-fly re-calibration of HST data to archive users, ST-ECF has embarked on a new project aiming at grouping, cosmic ray cleaning and drizzling images taken by most HST instruments. ... The production of the missing jitter files combined with the extraction of additional engineering parameters will greatly enhance the homogeneity and the scientific value of the entire archive. ... 1995, HST Data Handbook, STScI, 107 . ...

... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...

This module uses cookies to provide for a clickstream log of user activity on a site. ... In Apache 1.2 and later this module has been renamed the "user tracking" module, mod_usertrack. ... Instead, a configurable log format file should be used to log user click-streams. ... When used, this directive determines whether the cookie used for user tracking is created using the default ("normal") format (eg: decimal values for items like the PID) or using a more compact format (eg: hexidecimal values). ...

... Directives | ... Apache HTTP Server Version 2.2 . ... Generation of Expires and Cache-Control HTTP headers according to user-specified criteria . ... This module controls the setting of the Expires HTTP header and the max-age directive of the Cache-Control HTTP header in server responses. ... ExpiresByType . ... This directive defines the value of the Expires header and the max-age directive of the Cache-Control header generated for documents of the specified type ( e.g. , text/html ). ...

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... 1(625) . Dmitriev A.S., Kyarginsky B.E., Maksimov N.A., Panas A.I., and Starkov S.O. MOSCOW - 2000 . Direct Chaotic Communication (DCC) scheme for RF and microwave bands is proposed. ... Wireless data transmission in the microwave band, using a principally novel information carrier - dynamical chaos generated directly in microwave band, is realized. Transmission rates of 3.34, 10.0 and 70.0 Mbps are demonstrated in the experiment. ...

Next: Radiopulsars as Sources of Up: Cosmic Rays and Evolution Previous: Cosmic Rays and Evolution . Presently, there is little doubt that galactic CR can be generated at rapidly expanding shock fronts produced by supernova explosions. ... Statistical properties of radiopulsars in our Galaxy indicate a formation rate of NS of about 1 per 10-20 years in the present cosmological epoch, while direct astronomical observations have so far not detected supernova explosions at this high rate. ...

. You can compare any two versions of a file that is under the control of SCCS with the sccsdiff command: /usr/sccs/sccsdiff -r version -r version s. filename . Using this command produces a line by line difference between the two versions of the file. Results are shown in the same format as that produced by the diff command. Examples .

... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

M. D. Neusel Texas Tech University Lubbock, United States mara.d.neusel@ttu.edu Degree b ounds, the regular representation, and invariants of p ermutation groups in general Let F be a field, G a finite group, and consider a faithful representation of G : G GL(n, F) of degree n over F. Via the group G acts on the vector space V = Fn , hence on the dual space V , and thus on the symmetric algebra on the dual, denoted by F[V ]. ... Let : G GL(n, F) be an arbitrary nonmodular representation. ...

As in the last years, the Ephemerides of Minor Planets for 2015 are prepared by the IAA RAS only in the electronic form. ... Orbital elements of all numbered planets have been determined in IAA all over again on the ground of available observations in the catalog of the Minor Planet Center. ... More detailed information on orbital elements used in the present volume of EMP and their accuracy is given in section "Information on new orbital elements". ... a) information on new orbital elements; . ...