| Proposal ID | 076064 |
| Title | X-ray spectral evolution of microquasars during soft-to-hard state transitions |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0760646201 |
| DOI | https://doi.org/10.5270/esa-ry3xtfw |
| Principal Investigator, PI | Dr pierre-olivier petrucci |
| Abstract | We propose to perform (as a ToO) a series of 4x10ks+2x40 ks jointXMM-Newton/NuSTAR observations (spaced by a few days) of a microquasar duringits outburst decline phase to follow its broadband X-ray spectral evolution withan unprecedented precision. We will perform simultaneous radio, optical and IRobservations to observe the reactivation of the jet. This will allow us i) tocarefully investigate the physical/geometrical changes of the disc/corona systemthrough the transition and ii) to reveal the drivers of thequenching/reappearance of the jets during the state transitions and how theyconnect to the properties of the accretion flow. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-08-28T17:41:02Z/2015-09-30T15:55:24Z |
| Version | 21.51_20241115_1113 |
| Mission Description | The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations. Since Earths atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis. |
| Creator Contact | https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk |
| Date Published | 2016-10-21T22:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "accretion flow", "XMM-Newton", "corona system", "NuSTAR", "XMM", "outburst decline phase", "xmm newton" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr pierre-olivier petrucci, 2016, 'X-ray spectral evolution of microquasars during soft-to-hard state transitions', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-ry3xtfw |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |