A dataset provided by the European Space Agency

Name 084463
Title The extreme supergiant X-ray binary XTE J1855 026\: the missing link?


DOI https://doi.org/10.57780/esa-pg1kh5n
Author European Space Agency
Description We propose to use the high throughput and high resolution capabilities of
XMM-Newton to perform phase resolved spectroscopy of the extreme supergiant wind
accretor XTE J1855 026. This will allow us to study the stellar wind structure
and properties of the B supergiant donor through\: a) the reconstruction of the
wind density stratification in a B0.5Ia luminous star, b) put observational
constrains on the radial onset of wind clumping, c) explore the accretion
physics at work and its interplay with the wind to explain the episodes of
extreme brightness not seen in systems with similar donors.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2020-03-21T23:32:13Z/2020-03-22T16:12:13Z
Version 18.02_20200221_1200
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 2021-04-21T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2021, The Extreme Supergiant X-Ray Binary Xte J1855 026\: The Missing Linkquestionmark, 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-pg1kh5n