THE PARAMETERS INVOLVED IN HAPKE'S MODEL FOR ESTIMATION OF THE COMPOSITION OF THE EJECTA LUNAR TERRAINS. ... In the previous papers we were estimated the surface roughness of the ejecta lunar terrains by means comparison of the local phase function and the average integrated lunar indicatrix. ... The Hapke's theoretical model of the lunar surface reflection. ... For THE PARAMETERS INVOLVED IN HAPKE'S MODEL: S.G. Pugacheva, V.V. Shevchenko a low-albedo lunar surface parameter Bo = 1. ...

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• http://selena.sai.msu.ru/Pug/Publications/m44_70_pugacheva.pdf

Next: Simulations Up: Maximum Likelihood Estimation of Previous: Introduction . The properties of an ensemble of faint galaxies can be defined by the distribution of the parameters of the models that best fit each individual object. ... The model also includes instrumental parameters, such as the sky background (estimated locally) and amplitude of the noise. ... The probability of the observed value is then computed for each pixel using the adopted error distribution. ...

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• Herschel Images and Results for the Magellanic Clouds
• Ionization and Thermal Structures of the Absorption-Line Systems of Quasars
• Convolving data models with PSF models

... 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. ...

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• A New Entropy Measure Based on Multiple Resolution and Noise Modeling
• Synthetic Images of the Solar Corona from Octree Representation of 3-D Electron
• Fitting and Modeling in the ASC Data Analysis Environment

... Abstract: We present Monte Carlo radiative transfer simulations for spiral galaxies modelled as a stellar disk and a two-phase clumpy dust distribution. ... As a general result, clumpy models are less opaque than the corresponding homogeneous models. ... 0.00 0.15 0.50 0.1 0.5 1.0 2.0 5.0 10.0 0.25 X . ... We have also produced several homogeneous models, to compare to the clumpy models. ... Homogeneous and clumpy models with the same tauV have the same dust mass. ...

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• research field
• A Hubble diagram for Quasars
• Atlas of Monte Carlo Models of Dust Extinction in Galaxies

... 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. ...

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• Modeling of Very Luminous Stars in the M33
• Measurement of the dark halo shape in polar ring galaxies

Modelling Protostellar Disks Sarah Maddison Centre for Astrophysics and Supercomputing Swinburne University Overview · Types of circumstellar disks : ­ protostellar disks ­ circumbinary disks ­ protoplanetary disks · Modelling disk - important parameters: ­ Mdisk, Rdisk, H(r), i, T(r,z), (r,z)... ­ grain properties Introduction to PS Disks · Disks are a natural by- product of star formation process · Indirect evidence for ... Fuor and Xor outburst) convection in accretion disks? ...

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• Dark Matter Halo Properties
• Multi-Plane Models
• Research - The high-velocity clouds of M31

Optical characteristics of non-spherical scatterers . ... A list of reviews (under preparation) and links to the databases of Hovenier's and Gustafson's groups on the visible/infrared and microwave light scattering experiments, respectively. ... Light scattering codes . ... Benchmarks in optical properties . Tables of different light scattering characteristics carefully calculated by different codes (methods). Dependence of optical properties on scatterer parameters . ...

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• Database of Optical Properties -- Level: subpage
• Model realization and some results

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

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EPIC - MOS Contamination Monitoring 1E0102 - Rev 0065 - Thin Filter Black (MOS1) Red ( MOS2 ) 10 Primary Monitoring Source: SNR E0102 Properties: Have standard source spectral model Known to be stable ( EPIC -pn) Regularly observed throughout mission contamination model (VARABS) normalized counts s-1 keV-1 6 8 Multiply standard source model by Contaminant: Carbon dominated (c.f. RGS) 2 4 0.2 0.5 Energy (keV) 1 2 Derive predicted ... XMM EPIC MOS Steve Sembay (sfs5@le.ac.uk) ESAC 09/04/2015 ...

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• http://xmm.vilspa.esa.es/sas/6.1.0/doc/epatplot/ChangeLog
• http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200605/VBurwitz.pdf
• http://xmm.vilspa.esa.es/sas/7.0.0/doc/epatplot/ChangeLog

... Paradoxically, signal detection is concerned with fitting models to supposedly random series similarly to mathematical proofs by reductio ad absurdum of the antithesis. ... The quality of the fit is evaluated using a function S of the series , , and . ... A random variable S is characterized by its probability distribution function. ... The special realization of a random series which consists of independent variables of common (gaussian) distribution is called (gaussian) white noise. ...

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• Using the sky model
• Extinction and transformation models
• Documentation: LEDA: parameter: modz

Modeling of atmospheres of the brightest stars belonging to the Cyg OB2 association O LGA M A RY E VA , V. G . K L O C H K OVA , E.L. C H E N T S OV Special Astrophysical Observatory RAS; olga.maryeva@gmail.com We present the results of modeling of the spectrum of the brightest stars belonging to the Cyg OB2 association ­ Cyg OB2 #7 (O3If ) and Cyg OB2 #11 (O5Ifc). ... The lines in Cyg OB2 #7 spectrum are divided into three groups which can not be described with a single model. ...