New hard X-ray sources discovered in the ongoing INTEGRAL Galactic Plane survey after 14 years of observations

Understand

The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) continues to successfully work in orbit after its launch in 2002.

• The mission provides the deepest ever survey of hard X-ray sources throughout the Galaxy at energies above 20 keV.
• We report on a catalogue of new hard X-ray source candidates based on the latest sky maps comprising 14 years of data acquired with the IBIS telescope onboard INTEGRAL in the Galactic Plane (|b|<17.5 deg).
• The current catalogue includes in total 72 hard X-ray sources detected at S/N>4.7 sigma and not known to previous INTEGRAL surveys.