The efficiency of interaction of radiation with a particle and hence its optical properties depend on the particle chemical composition, size, shape, structure, etc. ... Particle size expressed in units of the wavelength of incident radiation, together with chemical composition, most strongly affects the optical properties of a scatterer. ... There are many methods to solve the light-scattering problem for a homogeneous spheroid (our survey of the light-scattering methods see here ). ...

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? ...

The dust properties in the Large and Small Magellanic clouds (LMC/SMC) are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 m. Three simple models of dust emission were fit to the observations: a single temperature blackbody modified by a power-law emissivity (SMBB), a single temperature blackbody modified by a broken power-law emissivity (BEMBB), and two blackbodies with different temperatures, both modified by the same power-law emissivity (TTMBB). ...

Next: Principles of organization Up: Further advance in the Previous: Further advance in the . ... An ability of using different catalogs makes this problem considerably simpler. Lately Different attempts have been made for combining many astronomical catalogs in unified databases NED, SIMBAD, ESIS, ADS, etc.(see reviews by Andernach et al.1994; Andernach 1995). ... We propose a new solution to this problem with a ``CATalogs supporting System'' (CATS) at Special Astrophysical Observatory (SAO). ...

Fortran 90 properties already in CF77 . ... Only the old form (fix form) of the source code is available. ... LOGICAL Default KIND number = 8 INTEGER Default int7 int15 KIND number = 6 1 2 digits = 46 7 15 radix = 2 2 2 range = 13 2 4 huge = 70368744177663 127 32767 bit_size = 46 8 16 INTEGER int31 int46 int64 KIND number = 4 6 8 digits = 31 46 63 radix = 2 2 2 range = 9 13 18 huge = 2147483647 70368744177663 9223372036854775807 bit_size = 32 46 46 REAL half Default,single double KIND ...

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 | ...

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. ...

Next: Redshift Distribution Up: Sample Identification Previous: Previously Identified Sources . ... In Figure 3, we plot the redshift distribution of DXRBS FSRQs opposite that of the 1 Jy and S4 samples. In Figure 4, we plot the redshift distribution of DXRBS BL Lacs opposite the Slew and 1 Jy samples. ... The apparent deficit of objects at the very highest luminosities is a result of the smaller area of sky covered by DXRBS compared to, e.g., the Slew and 1 Jy samples. ...

... 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. ...

... For an input list of EBOXDETECT source locations, simultaneous maximum likelihood PSF fits to the source count distribution are performed in all energy bands of each EPIC telescope. A description of the main properties of the detection algorithm may be found in Cruddace, Hasinger, Schmitt (1988). ... Note, that =1 in the case of the individual energy band detection likelihoods listed in source table rows with ID_BAND 0 and is equal to the total number of energy bands in the ID_BAND=0 summary rows. ...

... The parameter y   characterizes the ratio between the gravitational and magnetic ``properties'' of a star and will, therefore, be called the gravimagnetic parameter . Two magnetic rotators having quite different magnetic fields, subjected to different external conditions but with identical gravimagnetic parameters, have similar magnetospheres, as long as the accretion rate is quite low ( ). ... For isolated rotators, the accretion rate  yr is assumed. ...

... 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. ...