A dataset provided by the European Space Agency

Proposal ID 0420104
Obs ID 04201040075, 04201040076
Title Target of Opportunity Observation(s) of Known and Unknown X-ray Pulsating Transients in Outburst
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0420104
DOI https://doi.org/10.57780/esa-kht3khf
Author Santangelo
Abstract We propose a Target of Opportunity Observation whenever one of the known pulsating bright transient sources enters an outburst. Part of the proposal are also the new bright pulsating X-ray transients that will be discovered by INTEGRAL or any other current X-ray mission and that do not belong to the Integral Core Programme. More specifically, we propose two observations of 200 ks each (total 400 ks) to be performed at two different luminosity states, following a strategy which depends on the type of the outburst. The key scientific objectives of the proposal are: the measurement of the spectral parameters of the continuum and of the Cyclotron Resonant Scattering (CRS) structures as a function of system luminosity to study the height and extension of the line forming region in response to the decrease of mass accretion rate; the study of the energy-resolved pulse profiles as a function of the luminosity to test the geometry (fan/pencil) of the beam and of the B field; he phase resolved measurement of the source spectral parameters for both the continuum emission and CRS harmonics.
Publications
Temporal Coverage 2006-08-19T09:19:04Z / 2006-10-08T07:56:51Z
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 2025-03-25T09:54:34Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Santangelo, 2025, 'Target of Opportunity Observation(s) of Known and Unknown X-ray Pulsating Transients in Outburst', 1.0, European Space Agency, https://doi.org/10.57780/esa-kht3khf