Authority Name for National Space Science Data Center
Short Name:
NSSDC2
Date:
04 Apr 2008 17:51:11
Publisher:
National Space Science Data Center
Description:
This naming authority is for identifying resources from the National Space Science Data Center. Note that a second authority name, nasa.gsfc.nssdc, is also used for NSSDC resources.
Authority Name for National Space Science Data Center
Short Name:
NSSDC
Date:
04 Apr 2008 17:51:04
Publisher:
National Space Science Data Center
Description:
This naming authority is for identifying resources from the National Space Science Data Center. Note that a second authority name, gov.nasa.gsfc.nssdc, is also used for NSSDC resources.
Authority Name for the World Data Center for Astronomy
Short Name:
WDC-Astronomy
Date:
04 Apr 2008 16:54:59
Publisher:
The World Data Center for Astronomy
Description:
This authority name is for identifying resources from the World Data Center for Astronomy, hosted at National Astronomical Observatory of China, Beijing, China
TITAN is a computer program for calculating the interactions of a dilute plane-parallel medium with electromagnetic radiation. It includes all atomic processes: absorption, recombination, diffusion, excitation, deexcitation of atoms and ions, heating and cooling of the gas, and it solves the radiation transfer, in order to obtain the spectra reemitted by the medium. It handles plan parallel slabs in non LTE steady state, for various physical conditions and various illuminations, valid in many astrophysical situations. It is specifically designed for warm-hot (8000 to 10**8 K) and thick media (till an electron scattering optical depth of several tens) emitting and absorbing in the X-ray range (density from 10**5 to 10**14 cm-3). It computes the physical parameters, ionisation degrees, temperature, density, and the spectrum of the radiated light in each point of the slab, by solving simultaneously the ionisation equations, the equations of statistical equilibrium, the thermal equations and the radiation transfer, using iteration processes.
This resource describes the community webapplication at MSSL. It hosts all the accounts and secure accounts of people organized at MSSL. And possibly other outside people of MSSL but associated with projects of MSSL.
SkyBoT is a VO service which allows to seek and identify solar system objects (planet, satellites, asteroids, comets) in any field of view at a given epoch (cone-search method). It provides also a solar system object name resolver which convert the name or the designation of solar system objects into their celestial coordinates at a given epoch (resolver method). The SkyBoT service are available through a Web interface and a Web service (SOAP+WSDL+HTTP) which implements the IVOA Simple Cone-Search protocol.
