The Galactic bulge region is a rich host of variable X-ray and gamma-ray point sources. Since AO-3 we are monitoring about 190 of them with one hexagonal pattern about every 3 days, whenever the region is visible by INTEGRAL. Due to the high scientific return and in order to preserve the continuity with respect to past observations of this ever-changing region, we propose to continue our successful program. Our main aim is to monitor and actively report on any (transient) activity; in the long run the program is providing regular and homogeneous inputs about the soft and hard-X-ray (transient) population, as well as on the accretion regimes in the various types of binary systems. As a service to the scientific community, the observations are to be made public. We will continue to make the IBIS/ISGRI and JEM-X quick-look results publicly available through the web soon after the data have been taken, to preserve the possibility for rapid follow-up by the community.
Publications
Cosmological Fast Optical Transients with the Zwicky Transient Facility: A Search for Dirty Fireballs - Ho, Anna Y. Q., Perley, Daniel A.,Yao, Yuhan,Svinkin, Dmitry,de Ugarte Postigo, A.,Perley, R. A.,Kann, D. Alexander,Burns, Eric,Andreoni, Igor,Bellm, Eric C.,Bissaldi, Elisabetta,Bloom, Joshua S.,Brink, Thomas G.,Dekany, Richard,Drake, Andrew J.,Agui Fernandez, Jose Feliciano,Filippenko, Alexei V.,Frederiks, Dmitry,Graham, Matthew J.,Hristov, Boyan A.,Kasliwal, Mansi M.,Kulkarni, S. R.,Kumar, Harsh,Laher, Russ R.,Lysenko, Alexandra L.,Mailyan, Bagrat,Malacaria, Christian,Miller, A. A.,Poolakkil, S.,Riddle, Reed,Ridnaia, Anna,Rusholme, Ben,Savchenko, Volodymyr,Sollerman, Jesper,Thone, Christina,Tsvetkova, Anastasia,Ulanov, Mikhail,von Kienlin, Andreas (2022-10-01) http://ui.adsabs.harvard.edu/#abs/2022ApJ...938...85H
Enhanced Localization of Transients Based on a Novel Cross-correlation Method - Xiao, S., Xiong, S. L.,Zhang, S. N.,Song, L. M.,Lu, F. J.,Huang, Y.,Cai, C.,Yi, Q. B.,Song, X. Y.,Chen, W.,Ge, M. Y.,Liu, C. Z.,Li, X. B.,Li, C. K.,Zhao, Y. (2021-10-01) http://ui.adsabs.harvard.edu/#abs/2021ApJ...920...43X
Primordial black hole dark matter in the context of extra dimensions - Friedlander, Avi, Mack, Katherine J.,Schon, Sarah,Song, Ningqiang,Vincent, Aaron C. (2022-05-01) http://ui.adsabs.harvard.edu/#abs/2022PhRvD.105j3508F
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
Temporal Coverage
2021-02-08T19:19:17Z / 2021-10-25T18:59:57Z
Version
1.0
Mission Description
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, Kuulkers, 2026, 'Regular and frequent INTEGRAL monitoring of the Galactic Bulge region', 1.0, European Space Agency, https://doi.org/10.57780/esa-5vevpkg
Rights
Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.