A dataset provided by the European Space Agency

Proposal ID 1220042
Obs ID 12200420001
Title INTEGRAL study of supercritical accretion disk nutation in SS433
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:1220042
DOI https://doi.org/10.57780/esa-aq7oyfs
Author Cherepashchuk
Abstract We propose fixed-time observations of the galactic microquasar SS433 with a total duration of ~ 500 ks centered at the middle of the orbital hard X-ray eclipse at the disk precessional phase $\Psi ~ 0$ of the source in May 2015 (INTEGRAL orbits 1538-1540). The proposal is the continuation of INTEGRAL observations of the unique galactic source SS433 carried out in previous AOs. The main scientific goal of the new observations is to investigate the form of hard X-ray flux variations before and after the X-ray eclipse in order to study the accretion disk nutation effects, discovered by previous INTEGRAL observations. These observations should also add to confirm spectral changes across the primary eclipse. The results will be used to understand the physics of supercritical accretion disk and hot scattering corona around it discovered by INTEGRAL, a unique feature of SS433 among other galactic microquasars. The proposal is not associated with any of the AO12 Key Programs.
Publications
Temporal Coverage 2015-05-06T08:09:18Z / 2015-05-14T13:04:23Z
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.
Creator Contact https://www.cosmos.esa.int/web/integral/helpdesk
Date Published 2025-03-25T09:54:38Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Cherepashchuk, 2025, 'INTEGRAL study of supercritical accretion disk nutation in SS433', 1.0, European Space Agency, https://doi.org/10.57780/esa-aq7oyfs