We have reviewed the characteristics of the extended red emission (ERE) as observed in many dusty astronomical environments, in particular, the diffuse interstellar medium of the Galaxy. ... We have compared the photoluminescence properties of a variety of carbon- and silicon-based materials proposed as sources for the ERE with the observationally established constraints. We found that silicon nanoparticles provide the best match to the spectrum and to the efficiency requirement of the ERE. ...

... LABORATORY OF RADIO ASTRONOMICAL OBSERVATIONS . Radio sources identification is one of the most important tasks of the current radio astrophysics. ... Optical idetification. ... Optical identifications of subsample of steep spectra radio sources from RC catalog using 6m SAO telescope of SAO RAS: optical observations. ... Astronomy Reports. ... Identification of radio sources with data of various radio catalogs allows one to construct continual spectrum of the object and its radio structure. ...

... see The ROSAT AGN J/A+A/285/812 Spectral properties of X-ray extragal. sources (Brinkmann+ 1994) ================================================================================ Spectral properties of X-ray loud extragalactic radio sources BRINKMANN W., SIEBERT J. =1994A .. ...

Next: Sample Properties Up: Sample Identification Previous: Comments on Individual Sources . Previously known serendipitous sources were selected by cross-correlating WGACAT with a variety of optical and radio catalogs, including the Ver?n-Cetty & Ver?n (1996) and Hewitt & Burbidge (1993) quasar catalogs, the 1 Jy (Stickel et al. 1994) and S4 (Stickel & K?hr 1994) radio catalogs, and the BL Lac catalog of Padovani & Giommi (1995b). ... Details of these 97 objects are given in Table 6. ...

The final ChASeM33 source catalog . ... Back to Main Page . ... This is the final version of the ChASeM33 source catalog ("D" release) which contains 662 X-ray sources (70 are "possibly/confidently" extended). ... The ChASeM33 source catalog was created by using ACIS Extract, a software package written and maintained by Patrick Broos at Penn State University (USA). ... To learn about the adopted data reduction strategy and the results, we refer to The Final Source Caftalog paper from T llmann et al. ...

Other databases on optical properties of scatterers as far as we know are as follows (we shall be thankful to anyone who will provide us with more information!) ... Resources containing light scattering codes to calculate the optical properties of different scatterers have been mentioned in the corresponding section . Some bibliographies on light scattering including the questions of the optical properties have been referred to in the corresponding section . ...

... During the analysis of the surveys carried out on RATAN-600, it was found that almost one fifth of the detected sources shows significant radio flux variations. ... We used the data from "Cold" radio surveys carried out with RATAN-600 in 1980-1994 to search for radio sources with significant flux variability. ... On possibility of detection of variable sources using the data of Cold surveys carried out on RATAN-600. ... Detection of Variable Sources Using the Data of "Cold" Surveys. ...

Stellarium 0.12.3 . ... FileљStructure . ... core . ... 233 љ void azimuthalGridDisplayedChanged( const bool ) const ; . 234 љ void azimuthalGridColorChanged( const Vec3f & newColor) const ; . 235 љ void equatorGridDisplayedChanged( const bool displayed) const ; . 236 љ void equatorGridColorChanged( const Vec3f & newColor) const ; . 237 љ void equatorJ2000GridDisplayedChanged( const bool displayed) const ; . 238 љ void equatorJ2000GridColorChanged( const Vec3f & newColor) const ; . ...

The process of determining the number and characteristics of sources in astronomical images is so fundamental to a large range of astronomical problems that it is perhaps surprising that no standard procedure has ever been defined that has well understood properties with a high degree of statistical rigour on completeness and reliability. ... In this analysis we present results from testing such algorithms as implemented in the SExtractor, Selavy (Duchamp), and sfind tools on simulated data. ...

... This algorithm is designed to pick up sources that have either extents much greater than that of the points-spread function or any other sources that were not picked up by the point-source detection algorithm. ... nESources - the total number of extended-sources detected so far . ... eLevelImage - a two-dimension array that stores the pixels assigned to the extended-sources- each pixel assigned to the source is set equal to the number assigned to the source. ... x - stores the pixel index i . ...

... Galaxy Evolution home . Cavendish Astrophysics . ... Cosmological evolution of star-forming galaxies . The origin and evolution of radio sources . ... Radio sources are among the most powerful of the family of Active Galactic Nuclei (AGN). ... The overall properties of radio sources are well predicted by analytical models of self-modifying evolution of the radio source which we have developed, and many of the more unusual structures observed can be reproduced using computational models. ...

... The generation of simulated sources whose physical properties are well understood is useful in assessing the functionality of point source analysis software. Qpsim is an IRAF/PROS task which will generate events from sources of given intensity, shape, and position and either overlay them on a flat background in a new QPOE file or inject them into an existing QPOE file. ... The simulated data can be a useful tool in calibrating point source analysis software. ...

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Hide Zen home . ... sncat2sntab.pl - convert old catalog to table sn . ... CREATE TABLE cats ( id integer PRIMARY KEY, name text ); -- a list of properties of galaxy CREATE TABLE properties ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy ( id integer PRIMARY KEY, name text ); CREATE TABLE galaxy _property ( gid integer REFERENCES galaxy (id), pid integer REFERENCES properties(id), value float, UNIQUE( gid ,pid) ); CREATE t=# select * from galaxy; id | ...

lsst.tcc љ 1.2.2-3-g89ecb63 . ... Files . ... python . tcc . base . wrapperTestCase.py . ... 7 љ from tcc.base import AxisStateValDict, RotTypeNameDict . ... 13 љ def setUp (self): . ... 55 љ def checkCmdFail (self, cmdVar, shouldFail=False): . ... 64 љ def checkTrackResult (self, cmdVar, axisCmdState, . ... tcc.base.wrapperTestCase.WrapperTestCase.checkTrackResult . ... Definition: wrapperTestCase.py:70 . ... Definition: wrapperTestCase.py:113 . ... Definition: wrapperTestCase.py:100 . ...

Proposal Identification No.: P2777 Date Received: 2012-Sep-04 17:20:55 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: We propose a targeted search for radio pulsations from two candidate young pulsars identified in X-ray observations of the filled-center supernova remnants (SNRs) CTB 87 and G63.7+1.1. ... This proposal requires coordination with GPS L3 at 1381 MHz. ...

1000 of these sources, however, remains a mystery; these are the so-called unassociated gamma-ray sources, with no known astrophysical counterpart at any other wavelength. While many LAT unassociated sources likely belong to known classes of objects (e.g. pulsars), a more exotic origin for some of these sources is also possible (e.g. dark matter annihilation). ... These results will aid further studies and follow-up observations of LAT unassociated sources. ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... We have constructed and investigated properties of metallicity function of disk stars with different ages, proceeding from the statistically restored real altitude distributions of stars at the solar galactocentric distance. It is shown that the metallicity distribution of stars in each age range is not of Gaussian form, but it may be considered as a superposition of two normal distributions centered at -0.2 and 0.0 dex. ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...