Issue |
A&A
Volume 411, Number 1, November III 2003
Special letters issue on: first science with integral
|
|
---|---|---|
Page(s) | L223 - L229 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:20031395 | |
Published online | 17 November 2003 |
Letter to the Editor
The INTEGRAL/IBIS scientific data analysis*
1
CEA Saclay, DSM/DAPNIA/SAp, 91191 Gif-sur-Yvette Cedex, France
2
IASF/CNR, sezione di Bologna, via Gobetti 101, 40129 Bologna, Italy
3
School of Physics and Astronomy, University of Southampton, Highfield, SO17 1BJ, UK
4
Integral Science Data Center, Chemin d'Écogia, 16, 1290 Versoix, Switzerland
Corresponding author: A. Goldwurm, agoldwurm@cea.fr
Received:
16
July
2003
Accepted:
10
September
2003
The gamma-ray astronomical observatory INTEGRAL, succesfully launched
on 17th October 2002, carries two large gamma-ray telescopes.
One of them is the coded-mask imaging
gamma-ray telescope onboard the INTEGRAL satellite (IBIS) which provides
high-resolution (≈12') sky images of
in the energy range from 15 keV to 10 MeV with typical on-axis sensitivity
of ≈1 mCrab at 100 keV (3σ, 106 s exposure).
We report here the general description of the IBIS coded-mask imaging system
and of the standard IBIS science data analysis procedures.
These procedures reconstruct, clean and combine IBIS sky images
providing at the same time detection, identification and preliminary analysis of point-like
sources present in the field. Spectral extraction has also been implemented and is based on
simultaneous fitting of source and background shadowgram models to detector images.
The procedures are illustrated using some of the IBIS data
collected during the inflight calibrations and present performance is discussed.
The analysis programs described here have been integrated as instrument specific
software in the Integral Science Data Center (ISDC) analysis software packages
currently used for the Quick Look, Standard and Off-line Scientific Analysis.
Key words: coded masks / imaging / gamma-rays
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.