A dataset provided by the European Space Agency

Proposal ID 0120207
Obs ID 01202070001, 01202070003, 01202070004
Title X to Gamma Ray deep observations of two X-ray Bursters.
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0120207
DOI https://doi.org/10.57780/esa-eywaixj
Author Bazzano
Abstract We aim to investigate on a wider energy band, the spectral behaviour of two already detected reported hard X-ray bursters to better determine the spectral parameters (presence of an energy cut-off, reflection component etc.), study the accretion flow around the compact object and hence to firmly establish the still unclear emission origin. This as a part of long term programme started with BeppoSAX.The BeppoSAX and RossiXTE telescopes allowed for the first time to perform simultaneous high energy observations of classes of objects on a wide energy band. A high energy component in the spectra of X-Ray bursters, firstly discovered by SIGMA, has been detected with the NFIs (Narrow Field Instruments) on board BeppoSAX from at least 15 sources confirmning these objects as hard X-ray emitters. Similarity of Black Hole and Neutron Star spectra as well as variability when in Low State suggest the same mechanism to power the hard X-ray emission. Still controversial remain observational criteria to distinguish these two types of accreting systems apart from clear timing signature such as X-ray pulsation or X-ray bursts.We require total of 2 x 300 ksec to be spent on 2 bursters whose hard X-ray properties need for key investigation at high energy to disentangle their soft gamma ray emission processes: X1916-053 and X2127+119.
Publications
Temporal Coverage 2003-05-01T08:57:40Z / 2003-11-20T12:18:06Z
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 2025-03-25T09:54:30Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Bazzano, 2025, 'X to Gamma Ray deep observations of two X-ray Bursters.', 1.0, European Space Agency, https://doi.org/10.57780/esa-eywaixj