| Proposal ID | 088375 |
| Title | Bringing stripped stars to X-ray light |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883750401 |
| DOI | https://doi.org/10.57780/esa-939isak |
| Principal Investigator, PI | Dr Lidia Oskinova |
| Abstract | We propose to observe the complete sample of confirmed binary Be stars with sdOcompanions. We aim to probe the essentials of binary evolution theory whichpredicts that Be-type stars are the products of close binary evolution, and thata significant fraction of them have hot companions which were stripped ofhydrogen during a mass exchange event. The proposed survey will lead to acharacterization of X-ray emission from Be+sdO binaries and establishing theirX-ray properties. Furthermore, we propose to measure the X-ray spectra of twoprototypical Be+sdO systems, phi Per and o Pup, to measure the hot plasmatemperatures and emission measure, and to validate a hypothesis about stellarwind collisions in Be binaries. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-04-30T02:22:28Z/2022-04-30T10:07:28Z |
| Version | 19.17_20220121_1250 |
| 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 | 2023-05-17T00:00:00Z |
| Keywords | "bringing stripped stars", "xray properties", "hot plasma temperatures", "sdo companions", "close binary evolution", "binary evolution theory", "xray spectra", "stellar wind collisions", "hot companions", "type stars", "sdo systems", "complete sample", "sdo binary", "xray emission", "mass exchange event", "xray light" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Lidia Oskinova, 2023, 'Bringing stripped stars to X-ray light', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-939isak |