A dataset provided by the European Space Agency

Proposal ID 0520050
Obs ID 05200500029
Title Observation of an X-ray burster with weak persistent emission in a bursting state
Download Data Associated to the proposal https://isla.esac.esa.int/tap/download/bundle?format=ascii_curl&product_id=prop_id:0520050
DOI https://doi.org/10.57780/esa-665fafs
Author Molkov
Abstract Several years ago, a new class of type I X-ray bursters was discovered. This sources were detected only during an X-ray burst, and no persistent emission around the burst (burst-only sources). On the present moment more then ten sources can be related to this class of objects (that exceed 15\% from all known bursters).We propose a set from 2 observations any of 14 known sources (or/and from unknown source(s) from which it will be detected an X-ray burst, and which do not show clear detectable persistent emission) in a bursting state. Duration of each observation is ~200ks, one just after a detecting the first X-ray burst from a source with any X-ray mission (INTEGRAL, SWIFT, RXTE...) and one 30-40 days after the first observation. A bursting state of a such source could means that the source stays in a high state (with flux $>10^{34-35}$ ergs/s in soft energy band 1-8 keV). But then, the flux from this system in a low state could be below $10^{33}$ ergs/s. It means that it is very difficult to detect such source in the low state even using high sensitive telescopes. The main goal of the proposal to determine possible hard X-ray counterpart of such source during a high state and to study its spectral and temporal evolution (during transition to low state).We also have submitted proposal on the follow-up observations of X-ray bursters with weak persistent emission in a high state on CHANDRA mission and planing organize simultaneous observations on other wavelength.
Publications
Temporal Coverage 2008-04-03T03:00:59Z / 2008-04-06T00:52:21Z
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, Molkov, 2025, 'Observation of an X-ray burster with weak persistent emission in a bursting state', 1.0, European Space Agency, https://doi.org/10.57780/esa-665fafs