Name | 079078 |
Title | AN ACCRETION DISK WIND AT LOW EDDINGTON RATE |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0790780101 |
DOI | https://doi.org/10.5270/esa-6me8ylf |
Author | Dr Nathalie Degenaar |
Description | According to the current paradigm, accretion onto black holes and neutron stars is associated with two types of outflows that are mutually exclusive. At >E-2 of the Eddington limit, disk winds are detected through narrow X-ray absorption features, whereas at lower mass-accretion rates radio jets are seen. However, our AO1 NuSTAR observation of the neutron star low-mass X-ray binary IGR J17062-6143 revealed a virgul3-4 sigma narrow absorption line at virgul6.85 keV. This provides the very first evidence that disk winds can be launched at merely virgulE-3 of Eddington, and may co-exist with a radio jet. We propose for a 75 ks NuSTAR observation 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. |
Publication | No observations found associated with the current proposal |
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 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 | 2017-09-30T22:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Nathalie Degenaar, 2017, 079078, 19.17_20220121_1250, European Space Agency, https://doi.org/10.5270/esa-6me8ylf |