New interpretation of the two hard X-ray sources IGR J17503-2636 and IGR J17507-2647 - Sidoli, L., Sguera, V.,Esposito, P.,Sathyaprakash, R.,Ponti, G.,Mondal, S.,Bird, A. J. (2025-01-01) http://ui.adsabs.harvard.edu/#abs/2025A&A...693A..45S
The INTEGRAL (International Gamma-Ray Astrophysics Laboratory) mission, launched by the European Space Agency (ESA) on October 17, 2002, was designed to study high-energy phenomena in the universe. INTEGRAL was operating until february 2025 and it was equipped with three high-energy instruments: the Imager on Board the INTEGRAL Satellite (IBIS), the Spectrometer on INTEGRAL (SPI), and the JEM-X (Joint European Monitor for X-rays). Its Optical Monitoring Camera (OMC) provided optical V-band magnitude measurements, complementing the high-energy observations.