| Name | 088090 |
| Title | Deciphering accretion from a slow wind\: the case of HXMB GX 301-2 |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0880900101 |
| DOI | https://doi.org/10.57780/esa-cv2pvpo |
| Author | European Space Agency |
| Description | We propose a 70 ks XMM-Newton observation with simultaneous NuSTAR coverage of the HMXB GX 301-2 at phi = 0.5-0.7 at apastron of the highly eccentric orbit when the wind of the companion is less disturbed by tidal interaction with the neutron star and the source is bright enough to enable studies of short-term absorption variability. This will only be the second XMM-Newton observation of GX 301-2 and the first outside of the pre-periastron flare. It will allow us to study the structure of the dense, slow wind of the B1 Ia+ companion, Wray 997, and to probe wind accretion in such an extreme environment. We will additionally illuminate the properties of the accretion columns through pulse-phase resolved spectroscopy and through variability studies of the cyclotron lines. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2022-02-02T12:06:57Z/2022-02-03T08:06:57Z |
| 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 | 2023-02-22T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2023, Deciphering Accretion From A Slow Wind\: The Case Of Hxmb Gx 301-2, 19.17_20220121_1250, European Space Agency, https://doi.org/10.57780/esa-cv2pvpo |