A dataset provided by the European Space Agency

Proposal ID 0620037
Obs ID 06200370001, 06200370002, 06200370003
Title A 0535+26 observations in outburst
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0620037
DOI https://doi.org/10.57780/esa-d2mjeal
Author Caballero
Abstract We propose to observe the Be/X-ray binary system A0535+26 in the case it presents an outburst, monitoring the rise to the peak and the descending part of the outburst. In the case of a giant outburst, one main goal will be to study the luminosity dependence of the cyclotron energy. For the first time, high accuracy measurements at high luminosities of the cyclotron energy in A0535+26 will allow to test the hypothesis of a change in the height in the accretion column caused by an increase in the mass accretion rate. If the source enters a normal outburst, another important goal will be to study possible magnetospheric instabilities, which have recently been discovered for this source. Non-stationary accretion can be probed using INTEGRAL capabilities, which will allow to monitor the cyclotron line energy, to perform a precise timing analysis and to study the pulse profile evolution with time and luminosity.
Publications
Temporal Coverage 2009-08-12T00:17:42Z / 2009-08-18T13:11:46Z
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 2025-03-25T09:54:35Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Caballero, 2025, 'A 0535+26 observations in outburst', 1.0, European Space Agency, https://doi.org/10.57780/esa-d2mjeal