The INTEGRAL/IBIS scientific data analysis

By A. Goldwurm, P. David, Luigi Foschini, A. Gros, P. Laurent, A. Sauvageon, A. Bird, L. Lerusse, N. P. SApCEA-Saclay, France IASFCNR-Bologna and 3 more. 2003

248 citations recorded by the source corpus.

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 $29^{\circ}\times29^{\circ}$ in the energy range from 15 keV to 10 MeV with typical on-axis sensitivity of ≈ 1 mCrab at 100 keV (3 σ , 10 6 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.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Radiation

View Paper: https://www.semanticscholar.org/paper/63f11ef0c83e3567f74e6e199267240317bc1c92

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Pietro Ubertini

Citations in the corpus

Discovery of Luminous Pulsed Hard X-Ray Emission from Anomalous X-Ray Pulsars 1RXS J1708–4009, 4U 0142+61, and 1E 2259+586 by INTEGRAL and RXTE (2006, methodology): “INTEGRAL Spectral Analysis The INTEGRAL IBIS ISGRI spectral analysis applied in our study is based on OSAversion 4.1 programs producing sky mosaics for the combination of many science windows in different energy bands (Goldwurm et al. 2003).”
INTEGRAL Discovery of a Burst with Associated Radio Emission from the Magnetar SGR 1935+2154 (2020, methodology): “An analysis of the ISGRI data carried out off-line with the standard imaging analysis software (Goldwurm et al. 2003) confirmed the association of both events with SGR1935+2154.”
ISGRI: The INTEGRAL soft gamma-ray imager (2003, unknown): “The data processing, in particular the image deconvolution takes all these eff cts into account (Goldwurm et al. 2003).”
THE FOURTH IBIS/ISGRI SOFT GAMMA-RAY SURVEY CATALOG (2009, methodology): “Pipeline processing was carried out using the standard OSA 7.0 software (Goldwurm et al. 2003) up to and including the production of sky images for individual science windows with 4.8′ pixels.”
The INTEGRAL Science Data Centre (ISDC) (2001, methodology): “The algorithms used in this step are described elsewhere in this issue (Goldwurm et al. 2003, Mas-Hesse et al. 2003, Skinner and Connell 2003, Strong 2003, Westergaard et al. 2003).”