... A frequently used procedure, alternative to the correction for the chromatic response, is to normalise the continuum to unity by dividing the observed spectrum by a smooth approximation of its continuum. This approximation can be obtained either interactively with the graphic cursor, or from a table (command NORMALIZE/SPECTRUM ) or by dividing the raw data by itself after filtering or smoothing. Median filtering and running average algorithms are well suited for this purpose (command FILTER ). ...

Can I use Tiny Tim models in programs like DAOPHOT? This is actually the most frequently asked question. ... Some filters are not included since they are "weird" or cover a range of separate wavelengths, like the linear ramps. ... When Tiny Tim asks for the filter name, just enter "none" or "mono". ... How can I adjust the focus of the Tiny Tim models? ... Can Tiny Tim model the NICMOS coronographic mode? ... What's the deal with the pixel scattering function in WFPC2? ...

... The models provided are: . abs - absorption of x-rays by neutral gas with solar abundances. parameter 1 = . ... parameter 2 = . ... normalization - logarithmic value of the flux density at 1 keV in units of keV cm -2 s -1 keV -1 . ... normalization - logarithmic value of the normalization of the gaussian in units of keV cm -2 s -1 . ... absorption ( params )* model ( params ) . ... A single value for the normalization (i.e., fixed normalization) will force the program to use that value. ...

... Published spectra . Published k-corrections (Bessel & Brett filters) . K-corrections using CIT filters . Filters used for the integration: U B V Rc Ic J CIT H CIT K CIT . Filters used for the k-corrections: J BB H BB K BB . New calibration of the spectra: set the desidered colors (Johnson BV- Cousins RI- CIT JHK) in the table below, press "SUBMIT" and save the output as text file. ... Spectra of individual galaxies ( calibrated in lambda and flux and normalized to average=1) . ...

... Previous: Background Fluctuation Analysis from the Multiscale Entropy . ... A new measure of information is defined which is based on noise modeling and incorporates resolution scale. Properties of this measure are discussed. ... Additionally it allows for image noise modeling, and subsequent noise removal. ... Hence information- and entropy-based processing technologies will be necessary for the effective design and implementation of large, future generation, image databases. ...

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 ...

... We consider stars with a constant (solar) initial chemical composition. Before the Roche lobe overflow, the components evolve as single stars (see for details LPP96). ... If the mass transfer onto a normal star occurs on a time-scale ten time shorter than the thermal Kelvin-Helmholz time for this star or a compact star is engulfed by a giant companion (e.g. as a result of the kick), the common envelope (CE) stage of the binary evolution is set in (Paczynski 1976). ...

... Dark Matter Ring Modeled around Galaxy Cluster CL0024+17 . ... It is the relatively weak distortions of the many distant faint blue galaxies all over the image, however, that indicates the existence of the dark matter ring. ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ...

... Dark Matter Ring Modeled around Galaxy Cluster CL0024 17 . ... It is the relatively weak distortions of the many distant faint blue galaxies all over the image, however, that indicates the existence of the dark matter ring. ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ...

... spectrum . ... sfit . ... define >macro_name< : define a macro . ... meth_range <w1> <w2>: Set wavelength range for fit . data_spectrum <name> : data in "spectrum" format . ... data_sigma <sigma> : define mean standard error in data . ... data_line_set | ... NB: synth uses multiple calls to spectrum , so various Spectrum commands may also be required. synth : find optimum fit by adjusting abundances, v turb , v sin i , and v rad . ... save <fit> : Save the spectrum and best fit from synth . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the datab