Next: Star Formation Rate and Up: No Title Previous: Calculation of Evolutionary Tracks . To start calculations, we choose the distributions of the initial binary parameters: the mass of the primary ZAMS component, , binary mass ratio, , orbital separation a . ... whereas the mass ratio distribution is not. ... The zero assumption often made is that the mass ratio distribution has a flat shape, that is binaries with a high mass ratio occur as frequently as those with equal masses. ...

An investigation of the spectral energy distribution (SED) of the compact steep-spectrum (CSS) source and possible radio-loud narrow-line Seyfert 1 galaxy (NLS1), PKS 2004-447, is presented. ... Analysis of a non-contemporaneous, low-resolution optical spectrum suggests that the narrow-line region (NLR) is much more reddened than the X-ray emitting region suggesting that the gas-to-dust ratio in PKS 2004-447 may be very different than in our own Galaxy. ...

Next: Produce a spectral data Up: AXAF Recipes Previous: Viewing the qpoe file. Within IRAF (if you have the 'ftools' package loaded), you can produce a PHA distribution. ... The MARX files have 4096 PHA channels defined for ACIS, thus the main problem is to rebin the data to a reasonable number of PHA channels. ... Procedure to create an XSPEC PHA FITS file from a MARX Event qpoe file. ... Create an XSPEC compatible PHA FITS file . Rebin the XSPEC PHA FITS file . ...

... In brief: the frequency-dependent radiative transfer equation is solved for a dust under assumption of spherically-symmetric geometry for its distribution taking into account particle size distribution and quantum heating effects for the very small dust particles. ... Table: Model parameters for IRAS04296+3429. ... parameter . ... hot dust shell) . ... The best fit to the spectral energy distribution of IRAS04296 is shown by heavy solid line (see Table2 for details concerning parameters of the model...

We present far-infrared spectra, ЮЛ = 52-93 ЮМm, obtained with the Spitzer Space Telescope in the spectral energy distribution mode of its MIPS instrument, of a representative sample of the most luminous compact far-infrared sources in the Large Magellanic Cloud (LMC). ... First, we introduce a spectral classification scheme. ... The efficiency of photoelectric heating in the interfaces of ionized gas and molecular clouds is estimated at 0.1%-0.3%. ...

... The distribution of galactic RCB stars is controversial. Several authors have argued that they belong to a thick galactic disk, and are thus old Population I stars. However, they may alternatively belong to the even older galactic bulge (Population II). ... In either case, the populations are sufficiently old that RCB stars must have relatively low masses ( ). ... These are the only RCB stars for which a distance is known and hence for which an absolute magnitude can be deduced. ...

Copyright (c) 2014, 2015>, University of Washington All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. ... THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ...

XMM-Newton CCF Release Note XMM-CCF-REL-183 EPIC-pn spectral response R. D. Saxton 11 November 2004 1 CCF components Name of CCF VALDATE Blocks changed XSCS ag EPN QUANTUMEF 0015.CCF 2000-01-01 FRACTION CHANNEL, FRACTION ENERGY QE TOTAL, EBINS FRACTION NO EPN REDIST 0009.CCF 2000-01-01 NOISE PARAMS, PARTEVENT PARAMS THRESH LOSS NO 2 Changes Recent calibration work has shown that the Epic-pn redistribution function is in practice narrower than that represented in the current matrices. ...

Following are instructions to build and install the programs in this distribution. Make sure that you have all necessary tools for building executables. ... The automatic build process expects a configuration file called Config.local . ... The configuration file specifies the directory in which to install the binaries, as well as control over the generation of debugging code and reference clock support. ... Cleans out object files, programs and temporary files. make distclean . ...

... St Petersburg 23, September 2014 1 Motivation · Origin of Martian moons? ... Considered error sources: ­ Phobos a priori ephemerides; ­ Phobos a priori GM value; ­ measurements noise; ­ different strategies; · Methods: ­ real data analysis; ­ simulations. ... St Petersburg 23, September 2014 8 Simulations: sensitivity of the measurements to the a priori GM value Simulations: zero noise+ IMCCE a priori ephemerides +GMPH = 7.16 * 105 m3/sec2. ... St Petersburg 23, September 2014 14 Thank you! ...

... 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. ...

... 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 . ...

... Big ellipse: the region of the photometric analysis Smaller ellipses: the adopted inner boundaries of the Main Body and the C component Small circles: diffuse background objects, manually selected and removed from the photometry Uncleaned CMDs [V-I, I] of I Zw 18, obtained using Aloisi et al. (left) and Izotov & Thuan (right) datasets. ... Where is the 'halo'? Blue compact dwarf galaxy SBS 1415+435 Hubble Space Telescope / Advanced Camera for Surveys NASA, ESA A. Aloisi (STScI, ESA) et al. ...

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Programs to generate color spectra ================================== These programs were developed to produce realistic color spectra from digital data. ... The distribution here contains the original source code for colorspec and solar in C, and a version of solar written in Fortran. ... It will produce a color spectrum of any digital spectrum. ... The 800x50 image solarflux.ppm was generated by colorspec and the file fluxatlas.dat, a reformatted NSO Solar Flux Atlas in the data directory. ...

... Visible Distribution of Galaxies. ... Features of Elliptical, Lens-Shaped, Spiral and Irregular Galaxies. Galaxies with Bar. ... Distribution of Surface Brightness of Surface and Spiral Galaxies. ... Color Characteristics of Galaxies. ... Methods of Galaxies' Mass Determination. ... Hidden Mass of Spiral Galaxies. ... Features of Dark Matter Distribution in E and SO Galaxies. ... The Whole Number of Galaxies and Their Density by the Results of Observation on the 'Hubble' Space Telescope. ...

... The distribution of redshifts among the DXRBS FSRQs identified so far (Figure 3) is quite similar to that of the 1 Jy and S4 samples. ... A more thorough comparison will have to await completion of our survey and the convolution of the redshift distribution with the WGACAT sky coverage. As has already been mentioned by Hook et al. (1996), selecting flat-spectrum sources is an efficient way of finding high-redshift, radio-loud quasars. ...

... 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. ...

... Future seminars . P a s t seminars . Seminar council . ... Joerg Buechner (Max Planck Institute for Solar System Research) . ... Michael S. Briggs (The Center for Space Plasma and Aeronomic Research, Huntsville, USA) . Observations of Terrestrial Gamma-ray Flashes (TGFs) by the Fermi Gamma-ray Burst Monitor (GBM) " . ... A.P. Itin ( Institut f r Laser-Physik, Hamburg , Germany ; Zentrum f r Optische Quantentechnologien (ZOQ), Hamburg , Germany ; Space Research Institute (IKI), Moscow ) . ...

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