A dataset provided by the European Space Agency

Name: The nature of the compact accretor in exotic X-ray binaries
Published: 2020-05-14T22:00:00Z
License: https://creativecommons.org/licenses/by-nc/3.0/igo

Proposal ID	082183
Title	The nature of the compact accretor in exotic X-ray binaries
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0821830101 https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0821830201
DOI	https://doi.org/10.5270/esa-n8fzbqz
Principal Investigator, PI	Dr nathalie degenaar
Abstract	Very-faint X-ray transients undergo accretion outbursts with a peak X-rayluminosity well below that of other black hole and neutron star low-mass X-raybinaries. These intriguing objects allow us to probe new parameter space forbinary evolution models, accretion flows, and neutron star physics. We proposeto study 2 very-faint X-ray transients in quiescence with XMM-Newton (100 ks intotal) and HST (3 orbits in total). The aim of these observations are to i)elucidate the nature of their compact primary, ii) test if the X-ray spectralevolution during outburst serves as a diagnostic to separate neutron stars fromblack holes and iii) provide the first detailed characterisation of thequiescent emission of very-faint X-ray transients.
Publications	The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII O VIII and Fe L-shell Transitions \|Pan Zeyang Qu Zhijie et al. \| ApJS \| 271-62 \| 2024 \| 2024ApJS..271...62P \| http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez Antonio C. \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2019-03-29T13:28:10Z/2019-04-09T14:28:27Z
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	2020-05-14T22:00:00Z
Last Update	2026-07-09
Keywords	"ii test", "XMM-Newton", "intriguing objects", "faint xray transients", "XMM", "binary evolution models", "separate neutron stars", "compact primary", "parameter space", "compact accretor", "peak xray luminosity", "exotic xray binary", "HST", "outburst serves", "accretion outburst", "xray spectral evolution", "accretion flows", "neutron star physics", "quiescent emission", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr nathalie degenaar, 2020, 'The nature of the compact accretor in exotic X-ray binaries', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-n8fzbqz
Rights	Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license.