| Name | 090057 |
| Title | Bringing stripped stars to X-ray light |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0900570201 |
| DOI | https://doi.org/10.57780/esa-wp8v6ys |
| Author | European Space Agency |
| Description | We request 35ks exposure time to measure X-ray spectra of two prototypical massive binary Be stars with sdO companions. We aim to probe the theory which predicts that Be-type stars are the products of close binary evolution, and that a significant fraction of them have hot companions which were stripped of hydrogen by a mass exchange. These hot ..stripped. companions with sdO spectral types drive stellar winds which could collide and interact with the Be star winds and disks, and hence have unique signatures in their X-ray emission. The two prototypical Be+sdO systems, phi Per and o Pup, probe different orbital configurations, primary.s spectral types, and sdO-star mass. Comparative analysis of their X-ray spectra will uncover leading processes responsible for plasma heating in Be+sdO stars. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-05-11T15:31:49Z/2022-05-11T22:45:09Z |
| Version | 20.08_20220509_1852 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2023-06-28T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Bringing Stripped Stars To X-Ray Light, 20.08_20220509_1852, European Space Agency, https://doi.org/10.57780/esa-wp8v6ys |