Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/external/xmm_links/trainee/alumni/a_torrado.pdf Дата изменения: Wed Aug 16 16:16:38 2006 Дата индексирования: Sat Dec 22 14:40:28 2007 Кодировка: Поисковые слова: massive stars

A user-friendly graphical user-friendly interface for photoionization for codes

Alejandro Torrado Quintela Alejandro Torrado


What is CLOUDY?
· A code developed to simulate complex physical conditions in photoionized clouds. · Continous developing since 1978 · It can simulate many of this parameters and produce a spectra output · Much of the properties of the ionized gas (kinetic temperature, chemical state, level of ionization, and level populations...) are determined by microscopic processes, rather than a single temperature · We can run cloudy with different input datasets and compare the outputs with the real data

Cloudy project web: www.nublado.org


Why CLOUDY?
· Observation of soft X-ray emission in highly obscured AGN The narrow Radiative Recombination Continua (RRC) and ratios on He-triplets and higher order series confirm photoionization as the radiation source · CIELO : Catalog of Ionized Emission Lines in Obscured AGN 64 highly obscured AGN (type 1.5) observed with the XMMNewton/RGS 35 objects exhibit 5 lines 34 objects exhibit RRC (CV, OVII, OVIII)

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Cloudy can simulate several parameters associated with this clouds. With this GUI, we could compare the cloudy output data with real observations.
CIELO-AGN, and the origin of soft X-ray emission in highly obscured AGN. Matteo Guainazzi, Stefano Bianchi, Mar Sierra. European Space Astronomy Center Research and Science Support Division of ESA.


NGC1068

Dominated by Emission Lines

No continuum


Contours: Chandra/ACIS

Grayscale: HST/O[III]


Why a GUI?
Write a lot of input files, given initial and final values for dataset. Plot the results at once Compare real data (FITS , RGS spectral files...) with simulated plots.


Cloudy input files (several datset values)

Data input form

cloudy

Cloudy output files
dataset 1

dataset 2 dataset 3

Element ionization data files

Plot form

Plot

FITS file

FITS reader

Spectra overplot


Tipical cloudy input file

dataset

generate the element data files


dataset



Example of an element data file
"_U0.8_n3.0_f0.05_helium.dat"

"_U0.8_n3.0_f0.09_helium.dat"

"_U1.2_n3.0_f0.05_helium.dat"