INTEGRAL/IBIS

The INTEGRAL observatory operating in a hard X-ray/gamma domain has gathered a large observational data since 2003. Most of the observing time was dedicated to the Galactic source population study, making possible the deepest Galactic survey in hard X-rays ever compiled. Sky images of the Galactic Plane (|b|<17.5 deg) obtained with the IBIS telescope have been produced in three energy bands : 17−60, 17−35, and 35−80 keV. All the surveys are based on the nine-year sky maps, and the 17−60 keV survey is also available with the fourteen-years sky maps. All maps were originally convolved with instrumental point spread function (PSF) which is Gaussian (σ=5').

The units of the Healpix maps are mCrab.

Healpix maps made by D. Paradis.

References

'INTEGRAL/IBIS nine-year Galactic hard X-ray survey' by Krivonos, R. et al, 2012, A&A, 545, 27. http://adsabs.harvard.edu/abs/2012A%26A...545A..27K

'New hard X-ray sources discovered in the ongoing INTEGRAL Galactic plane survey after 14 yr of observations' by Krivonos, R. et al., 2017, MNRAS, 470, 512. http://adsabs.harvard.edu/abs/2017MNRAS.470..512K