| Proposal ID | 092004 |
| Title | Probing the shock physics of a particle accelerating O+O colliding wind binary |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0920040401 |
| DOI | https://doi.org/10.57780/esa-pm3dsuj |
| Principal Investigator, PI | Dr Gregor Rauw |
| Abstract | HD168112 is an eccentric wide O + O binary known for its synchrotron radioemission. The relativistic electrons responsible for this emission areaccelerated by the strong shocks between the stellar winds of both components.These shocks heat the post-shock plasma leading to a strong X-ray emission thatvaries with orbital separation d. We propose to investigate the impact of thepopulation of relativistic electrons on the hydrodynamic shocks and the X-rayemission. For this purpose, we propose to collect XMM-Newton observations ofHD168112 during its next periastron passage in March 2023. We will search fordeviations of the X-ray luminosity over the 1/d relation for adiabatic shocksand constrain any hard X-ray tail due to non-thermal X-rays produced via inverse Compton scattering. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-03-06T05:31:27Z/2023-04-08T00:35:49Z |
| Version | 20.10_20230417_1156 |
| 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 | 2024-05-31T00:00:00Z |
| Last Update | 2025-08-04 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Gregor Rauw, 2024, 'Probing the shock physics of a particle accelerating O+O colliding wind binary', 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-pm3dsuj |