... 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. ...

... Default . ... The descriptions below focus on the meaning of each filename parameter, leaving the exact details of the inferred default value to be explained in the algorithm section. evlist . ... file . The response matrix file (OGIP-compliant format). ... If a spectrum file is not provided ( withspectrum =no) this parameter specifies the INDEX number of a source in the source description list (parameter srclist ), and thereby the incidence angle and selection regions for the response matrix. ...

... The user provides SCHED with source coordinates in one of the J2000, B1950, or DATE coordinate systems. ... This date is specified using PRECDATE . ... This is enough to harm phasing of the VLA at high frequencies and enough to be rather undesirable for positions used on the correlator. ... For example, the B1950 coordinates of the VLA calibrators are either based on absolute measurements made in 1979.9, or are converted from more modern J2000 coordinates using an assumed ``observe'' date of 1979.9....

instr> Quality Control: . Image flats . ... noise parameters | ... linearity, gain . ... While the ordinary, daily fibre flats mainly measure fibre characteristics, the image flats are exposures of the CCD by the flat field lamp without the fibre system. ... Two kinds of small-scale fluctuations exist in any raw frame: photon noise, and fixed-pattern (gain) noise (the third source, read noise, is negligible here). ... The penalty to pay is added photon noise, inherent in the image flats. ...

set_filter_pos (version 01/20/14) . ... set_filter_pos.py . Sets the appropriate guide star filter position for the specified obset_id . ... PURPOSE: To set the guide star filter position in the database relation . ... Rework to support clear filter guiding - mdr 1/20/14 . ... Sets the guide star filter for the provided obset based upon the . ... do set_filter_pos <obsets> [-setfilter|-resetfilter] [-fgs1=<mag1>] . ... The default is -setfilter. -resetfilter will set the appropriate filter . ...

... Binary orbits in the acceleration/period plane . Circular Orbits . ... We first present the equations for the period and acceleration of a pulsar in an eccentric binary system as a function of its position in the orbit. ... In Freire, Kramer & Lyne (2001) (from where most of this text and following equations are taken), we describe in more detail how circular binary orbits can be determined from the observed periods and accelerations of the pulsar. ... where is the orbital period of the binary. ...

Leda home | Search object | SQL | Field . Access from Aladin . The access to LEDA from Aladin allows to display the galaxies in a field centered on coordinates or on an object specified by its designation. ... When a name is provided to Aladin, its position is searched in Simbad and LEDA is searched around this position. ... It is optionally possible to specify additional constraints to filter the list of galaxies returned by LEDA. ... leda@univ-lyon1.fr ...

... Apache HTTP Server Version 2.4 . ... Session encryption support . ... session_crypto_module . ... The session will be encrypted with the given key. Different servers can be configured to share sessions by ensuring the same encryption key is used on each server. ... The SessionCryptoPassphrase directive specifies the keys to be used to enable symmetrical encryption on the contents of the session before writing the session, or decrypting the contents of the session after reading the session. ...

... The various Inst :Focus scripts allow you to take a series of exposures over a range of secondary mirror focus values, report the resulting FWHMs and optionally adjust the focus to the estimated best value. ... Slitviewer scripts assume the focus star is on the boresight. ... Focus scripts runs in three phases: . ... The script moves the boresight so the focus star is visible next to the slit, sets the focus to Center Focus, takes an exposure and tries to measure the star's FWHM. ...

wcs2dr -- Convert WCS header information into drizzle parameters for image registration wcs2dr image refim . images = "" [file name] . ... The style for the output listing. ... cl wcs2dr @files ref style= para # drizzle .data= test1 drizzle .shft_fr= output drizzle .shft_un= output drizzle .align= center drizzle .xsh= 552.733 drizzle .ysh= 482.749 drizzle .scale= 1.009 drizzle .rot= - 2.871 # drizzle .data= test2 drizzle .shft_fr= output drizzle .shft_un= output ...

... Using the obtained above dependence of compact binary merging rates in the elliptical galaxy on time (Fig. ) and assuming the cosmological origin of GRB as products of binary NS/BH coalescences, we can compute the theoretical - curve. ... Figure: (Right panel) The 2-nd BATSE catalog (solid points) is fitted by the cosmological GRB model (from Lipunov et al. ... Note that the total GRB rate in the Universe is per year, 3 orders of magnitude smaller than the total binary NS merging rate. ...

... spectrum . ... The photons we detect originate in the outermost layers, or atmosphere, of the star. In order to interpret stellar spectra, it is necessary to construct models which accurately represent the structure of a stellar atmosphere and the transfer of radiation from the stellar interior into interstellar space. For the study of helium stars and other stellar remnants, we in Armagh use several computer programs, of which sterne and spectrum are the most important. sterne . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

... We present a proposed standard for data dictionaries associated with catalogs being accessed through the Astrophysics Data System (ADS) Mosaic Catalog Service. Each catalog made available for searching must have a data dictionary, which consists of a set of specified keywords describing format, content and location of data. ... There are two keywords in the Table Data Dictionary which indicate to the server software that the corresponding column contains special attributes. ...

Stellarium 0.12.3 . ... TextParams Struct Reference . Parameters specifying how to draw text. ... TextParams (const float x, const float y, const QString &string) . Construct TextParams with default parameters. ... TextParams ( Vector3 < F > &position3D, StelProjectorP projector , const QString &string) . Construct TextParams to draw text at a 3D position, using specified projector. ... string љ . ... Text string to draw. ... The required string parameter is also set, as is the projector. ...

... Several analysis strategies for computation of systematic part in the radio source velocities can be used: a) estimate source position and velocities from global solution, then fit spherical harmonics to the velocities (Gwinn et al. 1997); b) compute the coefficients of spherical harmonics as global parameters (MacMillan 2005; Titov 2008); c) compute velocities from position time series, then fit spherical harmonics to the velocities. ... Time series statistics is shown in Table 1. ...

The code calculates the extinction, scattering and absorption efficiency factors for n-layered spheres. ... We provide the code with a test input file and one output file. A run of the code with such an input should lead to the results given in the output files. ... n-miev3.dat (0.9 K) --- input data file . n-miev3a.for (23.2 K) --- Fortran code . n-test.dat (2.5 K) --- test output file . Parameters: . ... Values of other parameters are specified in the input file n-miev3.dat . ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

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. ...

Spectropolarimetry and modeling of Galactic Wolf-Rayet star WR156 O LGA M A RY E VA Special Astrophysical Observatory RAS; olga.maryeva@gmail.com For the first time spectropolarimetric observations of Wolf-Rayet star WR156 (WN8h sub-class) were conducted. ... This polarization is, most probably, has an interstellar origin, as its magnitude and orientation are similar to the ones of field stars. ... By its parameters WR156 is similar to other WN8h stars, displaying the line effect. ...