We ask for the continuation of the INTEGRAL Key Programme observations of the area of the Galaxy bounded by -20<= l <= +20 and -15 <= b <= +15 with a total of 2 Msec of observations. The aim is to study the inner region of the Galaxy, including the hard X-ray variability of Sgr A* , and to enable significant serendipitous science in the Galactic center region. We do not ask for data rights for any of the sources, except for the Galactic Center.
Publications
Broadband X-ray spectral and timing properties of the accreting millisecond X-ray pulsar IGR J17498-2921 during the 2023 outburst - Li, Z. S., Kuiper, L.,Pan, Y. Y.,Falanga, M.,Poutanen, J.,Chen, Y. P.,Xu, R. X.,Ge, M. Y.,Huang, Y.,Song, L. M.,Zhang, S.,Lu, F. J.,Zhang, S. N. (2024-11-01) http://ui.adsabs.harvard.edu/#abs/2024A&A...691A..92L
Searching for orbital period modulation in X-ray observations of the symbiotic X-ray binary GX 1+4 - Klawin, Moritz, Ducci, Lorenzo,Mirac Serim, M.,Santangelo, Andrea,Ferrigno, Carlo,Bozzo, Enrico (2024-12-01) http://ui.adsabs.harvard.edu/#abs/2024A&A...692A..19K
Searching for redshifted 2.2 MeV neutron-capture lines from accreting neutron stars: Theoretical X-ray luminosity requirements and INTEGRAL/SPI observations - Ducci, L., Santangelo, A.,Tsygankov, S.,Mushtukov, A.,Ferrigno, C. (2024-10-01) http://ui.adsabs.harvard.edu/#abs/2024A&A...690A.309D
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.
European Space Agency, Wilms, 2025, 'Monitoring the Galactic Centre Region: An INTEGRAL Legacy', 1.0, European Space Agency, https://doi.org/10.57780/esa-3yvciy1