GX 339-4 is the archetype of low-mass X-ray binary/microquasar. It recently entered into a new X-ray outburst (ATels 15577, 15578), and was also detected at other wavelengths (radio, ATels 1580). The source is currently in a standard hard X-ray state, associated with the presence of a strong collimated compact jet. It is a one of the very few microquasar where multi-wavelength sub-second variability has been detected (ie including infra red observations). As such a multi-wavelength campaign including MeerKat, Visir at ESO, and the recently launched JWST is currently ongoing (eg ATel 15596). We want to take the opportunity of the next JWST observation, scheduled on Sept. 10 @ 00h42 UTC lasting about 3 hours to obtain simultaneous coverage at high-energies with INTEGRAL. This will permit us to probe the > 20 keV spectral region and in particular search for signatures of the said jet. Additionally the fast time variability of the source can be searched with non-standard techniques especially in the range 20-100 keV. While JEM-X will provide a soft X-ray spectrum, the core of the justification is based on IBIS (SPI being in annealing during rev 2547, when the JWST observations is meant to occur).
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
Temporal Coverage
2022-09-09T16:07:30Z / 2022-09-10T15:10:12Z
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.
