| Proposal ID | 086302 |
| Title | Observations of Two Quiescent Low-extinction High-mass X-ray Binary candidates |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0863020201 |
| DOI | https://doi.org/10.57780/esa-er1up5y |
| Principal Investigator, PI | Dr Yue Zhao |
| Abstract | We propose XMM-Newton observations of 2 Galactic high-mass X-ray binary (HMXB)candidates with relatively low absorption column densities (NH < 1e22 cm^-2).These targets lack detailed X-ray studies, and have low X-ray fluxes or limitsin quiescence. The nature of the accreting object is not clear in these cases;are they white dwarfs? neutron stars? black holes? XMM-Newton observations willconfirm whether the Be star counterparts are truly X- ray sources, and if so,characterize their spectra and possibly pulsations, helping to identify thenature of the accretor. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2021-04-05T21:56:16Z/2021-04-06T12:37:56Z |
| Version | 21.51_20241115_1113 |
| 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 | 2022-06-02T00:00:00Z |
| Last Update | 2026-07-09 |
| Keywords | "star counterparts", "white dwarfs", "XMM-Newton", "low xray fluxes", "accreting object", "quiescent low extinction", "XMM", "neutron stars", "1e22 cm", "black holes", "xmm newton" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Yue Zhao, 2022, 'Observations of Two Quiescent Low-extinction High-mass X-ray Binary candidates', 21.51_20241115_1113, European Space Agency, https://doi.org/10.57780/esa-er1up5y |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |