| Proposal ID | 090042 |
| Title | X-ray survey of the complete sample of spectroscopically confirmed Be+sdO stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900420901 |
| DOI | https://doi.org/10.57780/esa-78vf5wg |
| Principal Investigator, PI | Prof Lidia Oskinova |
| Abstract | We propose to survey the complete, Galactic sample of confirmed massive binaryBe+sdO stars. We aim to probe the models which predicts that a significantfraction of Be-type stars have hot companions which were stripped of hydrogen bya mass exchange. These hot stripped companions with sdO spectral types drivestellar winds which collide and interact with the Be star winds and disks, andhence have unique signatures in their X-ray emission. The proposed survey willestablish X-ray properties of Be+sdO binaries as needed to discriminate themfrom general OB star populations. The first X-ray survey of Be+sdO binarieswill serve as important test on the physics of post-interaction binary stars andprovide critically important input to binary population synthesis models. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2023-04-22T02:14:10Z/2023-04-22T10:07:30Z |
| 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 | 2024-05-12T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | XMM-Newton, OM, RGS, EPIC, X-ray, Multi-Mirror, SAS |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Prof Lidia Oskinova, 2024, 'X-ray survey of the complete sample of spectroscopically confirmed Be+sdO stars', 20.10_20230417_1156, European Space Agency, https://doi.org/10.57780/esa-78vf5wg |