| Name | 087099 |
| Title | A NEUTRON STAR ULTRA-COMPACT X-RAY BINARY WITH THE SHORTEST KNOWN ORBITAL PERIOD |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0870990201 |
| DOI | https://doi.org/esa-[xxxxxxx] |
| Author | Dr Kaya Mori |
| Description | An ultra-compact X-ray binary (UCXB) candidate with potentially the shortest known orbital period of 10.2 minutes was serendipitously discovered in the Galactic Bulge. Its only available X-ray spectra from XMM, and radio-IR observations suggest that the source may be the first direct impact NS binary with no accretion disk or (less likely) an intermediate polar. The proposed NuSTAR+XMM observations will confirm the period for a NS spin, and identify the source by a combination of broad-band X-ray spectroscopy and Fe line diagnostics. Given its short orbital period, the source may be one of the few UCXBs detectable by the future LISA GW observatory. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-02-28T06:07:42Z/2021-02-28T15:17:42Z |
| Version | 18.02_20200221_1200 |
| 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 | 2022-04-06T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2022-04-06T00:00:00Z, 087099, 18.02_20200221_1200. https://doi.org/esa-[xxxxxxx] |