| Proposal ID | 088350 |
| Title | WR 71: To Binary or not to Binary |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0883500101 |
| DOI | https://doi.org/10.57780/esa-q5rfri3 |
| Principal Investigator, PI | Ms Rachel Johnson |
| Abstract | We request a single, unphased, 5-ks snapshot observation of the southern WRvariable star WR 71. The binary status of this object is uncertain, but ourrecent observations show that its spectropolarimetric features resemble those ofknown WR+O binary systems. We seek to establish whether WR 71 displays brightX-ray emission similar to known colliding-wind binaries. If so, we will proposefollow-up observations to characterize its X-ray spectrum and shed further lighton its binary status. |
| Publications | No publications found for current proposal! |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-09-09T11:32:41Z/2022-02-07T15:48:43Z |
| 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 | 2023-03-04T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "binary systems", "binary status", "xray spectrum", "colliding wind binary", "wr 71 \:" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Ms Rachel Johnson, 2023, 'WR 71: To Binary or not to Binary', 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-q5rfri3 |