INTEGRAL study of MAXI J1535−571, MAXI J1820+070, and MAXI J1348 − 630 outbursts
نویسندگان
چکیده
In black hole X-ray binaries, a non-thermal high-energy component is sometimes detected at energies above 200 keV. The origin of this debated and distinct spectral modelizations can lead to different interpretations. High-energy polarimetry measurements with INTEGRAL allow new diagnostics on the physics responsible for MeV component. work, we aim investigate behavior three bright sources discovered by MAXI: MAXI J1535-571, J1820+070 J1348-630. We take advantage their brightness soft gamma-ray (0.1-2 MeV) properties INTEGRAL. use both polarimetric approaches probe emission bring constraints ~ emission. first study characteristics in 3-2000 keV using JEM-X, IBIS SPI semi-phenomenological description data. then as Compton telescope order evaluate polarization 300 A during HIMS SIMS LHS components J1348-630 are polarized fraction 26 +/- 9{\deg} > 56 % 300-1000 keV, respectively. With no information could either come from jets or corona. case J1820+070, extrapolation synchrotron spectrum measured infrared indicates that likely due distribution electrons hybrid For J1348-630, high points towards origin, however, cannot formally conclude without any data giving optically thin part spectrum.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2023
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202243564