| Abstract |
In recent years, thanks to the study of the correlated X-ray/OIR fast variability in Low Mass X-ray Binaries (LMXRBs) a new window on jet physics was opened: thanks to the detection of the subsecond variability in the jet emission, it has been possible to measure the jet speed and size. Sco X-1 is a Neutron star LMXRBs which shows dramatic X-ray variability linked to changes in the nature of the accretion inflow, to which is also associated strong radio activity from the relativistic jet. Here we propose to observe Sco X-1 with INTEGRAL using high time resolution modes, to be matched in strict simultaneity with HAWK-I@VLT. We will measure the jet speed and study how these jet properties vary and evolve in the different accretion regimes of the source. Coverage in other bands will be also asked with other telescope in other bands (i.e. VLA, REM...). We ask to perform 2 observation of 100ks each. |
| Publications |
- A search for period changes of eight short-period Type II Cepheids - Yacob, Alemiye M., Berdnikov, Leonid N.,Pastukhova, Elena N.,Kniazev, Alexei Y.,Whitelock, Patricia A. (2022-10-01) http://ui.adsabs.harvard.edu/#abs/2022MNRAS.516.2095Y
- 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
- 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 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
- 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
- Swift, NuSTAR, and INTEGRAL observations of the symbiotic X-ray binary IGR J16194-2810 - Bozzo, E., Romano, P.,Ferrigno, C.,Ducci, L. (2024-01-01) http://ui.adsabs.harvard.edu/#abs/2024MNRAS.527.3585B
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| 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. |
