Перейти…

Астрофизический семинар ИНАСАН № 104 (26 октября 2005 г., 11:00)

Опубликовано: 26/10/2005

Докладчик: Jean-Michel Desert, Institut d’Astrophysique de Paris (IAP)

Название доклада: “The FUSE database in the virtual observatory”

Краткое содержание доклада:

We have developed a database containing more than three thousands FUSE public observations at IAP, Paris (http://fuse.iap.fr). FUSE (Far-Ultraviolet Spectroscopic Explorer) is a NASA/CNES-supported astronomy mission that was launched on June 24, 1999, to explore the Universe using the technique of high-resolution spectroscopy in the far-ultraviolet spectral region (see http://fuse.pha.jhu.edu/). Up to now, more than three thousands FUSE public observations are available and the telescope is still observing (until 2008). This database is a user friendly and interactive tool to sort out the data using various criteria, to cross correlate or apply real time calculations on the spectrum, in order to visualize and to retrieve datasets. To improve its capabilities, this database is linked to the MAST and the CDS and appear in the Vizier tool.

We have developed an SSAP (simple spectrale access protocol) for this database in collaborations with others spectrale databases in the fields of stars and galaxies. Now that we have registered this database in the NVO registry, the spectrum are accessible by everyone using any VO-compalient tools without knowing the database or the FUSE programme itself. Our team have developed a profile fitting software,called “Owens”, to extract information from any spectra (column densities, temperature, etc…) in a semi-automated way. This very powerfull tools allow the whole community to solve problems and to get publication. We are now trying to develop a webservice with this tool. The general idea is for example for one user to get a STIS spectrum from the MAST archive and a VLT spectrum of the same object from ESO database, to obtain the atomic and molecular line from another service and finally to use our webservice to obtain a profile fitting of the lines and extract the physical parameters required.