We request Target of Opportunity (ToO) observations to study a (new or known) Black Hole (BH) transient in two distinct spectral states (200 ks each or a minimum of a full orbit) simultaneously with two XMM-Newton observations (10 ks each) and multi-wavelength campaigns. BH transients sporadically appear and display complex spectra and fast time-variability properties. Our goal is to witness their evolutions and connections to radio/Opt./NIR properties to understand the accretion/ejection processes. Using INTEGRAL simultaneously with XMM-Newton and ground-based facilities, we aim to measure in detail the spectral variations (curvature and breaks of the Compton medium) and correlate them with disc and jet evolutions. With an unprecedented high-energy sensitivity in any sky region, INTEGRAL allows us to i) disentangle the different contributions to the broadband continuum emission (strength of the reflection hump, test of thermal Comptonization vs hybrid models); ii) shed light on the nature of the additional parameter to the accretion rate, suspected to drive state changes and iii) reveal the relationship between the hard X/soft gamma-ray emission, jets and their evolution with time. The different physical components (star, accretion disc, winds, hot inner flow, compact object, corona, relativistic jet) emit and absorb radiations at different frequencies, and are influenced by the others. Such multiwavelength observations are the most fruitful way forward to constrain distinct models, as we have showing during many such observational campaign, the last was performed on the exceptional June 2015 outburst of V404 Cygni.
Publications
Diffuse Galactic emission spectrum between 0.5 and 8.0 MeV - Siegert, Thomas, Berteaud, Joanna,Calore, Francesca,Serpico, Pasquale D.,Weinberger, Christoph (2022-04-01) http://ui.adsabs.harvard.edu/#abs/2022A&A...660A.130S
INTEGRAL study of MAXI J1535-571, MAXI J1820+070, and MAXI J1348 - 630 outbursts. I. Detection and polarization properties of the high-energy emission - Cangemi, F., Rodriguez, J.,Belloni, T.,Gouiffes, C.,Grinberg, V.,Laurent, P.,Petrucci, P. -O.,Wilms, J. (2023-01-01) http://ui.adsabs.harvard.edu/#abs/2023A&A...669A..65C
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
26Al gamma rays from the Galaxy with INTEGRAL/SPI - Pleintinger, Moritz M. M., Diehl, Roland,Siegert, Thomas,Greiner, Jochen,Krause, Martin G. H. (2023-04-01) http://ui.adsabs.harvard.edu/#abs/2023A&A...672A..53P
Temporal Coverage
2019-01-29T10:23:15Z / 2019-02-27T05:54:00Z
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, Rodriguez, 2025, 'Studying Black Hole Transients in Outbursts from Radio to Gamma-rays', 1.0, European Space Agency, https://doi.org/10.57780/esa-ys9uxs3
