A dataset provided by the European Space Agency

Name 084189
Title Mapping the wind and accretion structure in HMXBs using Vela X-1


DOI https://doi.org/10.5270/esa-0lb1fyk
Author European Space Agency
Description We propose a 100 ks XMM-Newton observation with simultaneous NuSTAR coverage of
the wind-accreting HMXB Vela X-1 at orbital phase = 0.35-0.55, when we expect
the largest changes in absorption as the accretion wake starts to overlap our
line of sight. It will allow us to map the wind and accretion structure in the
system, in particularly to trace the wakes, study the clumpiness of the wind
and its ionization structure and investigate the location of the reprocessing
sites in the system. We will additionally be able to illuminate the properties
of the accretion columns through variability studies of the cyclotron resonance
scattering features and pulse-phase resolved spectroscopy and to investigate
the origin of the soft excess.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2019-05-03T21:14:00Z/2019-05-05T05:09:00Z
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 2020-05-24T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2020, Mapping The Wind And Accretion Structure In Hmxbs Using Vela X-1, 19.17_20220121_1250, European Space Agency, https://doi.org/10.5270/esa-0lb1fyk