Proposal ID | 079078 |
Title | AN ACCRETION DISK WIND AT LOW EDDINGTON RATE |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0790780101 |
DOI | https://doi.org/10.5270/esa-6me8ylf |
Principal Investigator, PI | Dr Nathalie Degenaar |
Abstract | According to the current paradigm, accretion onto black holes and neutron starsis associated with two types of outflows that are mutually exclusive. At >E-2 ofthe Eddington limit, disk winds are detected through narrow X-ray absorptionfeatures, whereas at lower mass-accretion rates radio jets are seen. However,our AO1 NuSTAR observation of the neutron star low-mass X-ray binary IGRJ17062-6143 revealed a virgul3-4 sigma narrow absorption line at virgul6.85 keV. Thisprovides the very first evidence that disk winds can be launched at merely virgulE-3of Eddington, and may co-exist with a radio jet. We propose for a 75 ks NuSTARobservation and a supporting 70 ks XMM observation to solidify this measurement,which would change our current views of inflow-outflow coupling in accreting compact objects. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2016-09-13T12:03:52Z/2016-09-14T06:05:32Z |
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 | 2017-09-30T22:00:00Z |
Keywords | "NuSTAR", "neutron stars", "low eddington rate", "XMM", "eddington limit", "mutually exclusive", "radio jet", "inflow outflow coupling", "85 kev", "narrow xray absorption", "co exist", "75 nustar", "accretion disk wind", "disk winds", "ao1 nustar", "accreting compact objects" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Nathalie Degenaar, 2017, 'AN ACCRETION DISK WIND AT LOW EDDINGTON RATE', 19.17_20220121_1250, European Space Agency, https://doi.org/10.5270/esa-6me8ylf |