A dataset provided by the European Space Agency

Proposal ID 055614
Title Monitoring the hydrogenic column density in obscured HMXB
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DOI https://doi.org/10.5270/esa-uupqyp7
Principal Investigator, PI Dr Juan Antonio Zurita Heras
Abstract We request to monitor 4 obscured HMXB composed by a neutron star and asupergiant OB companion (IGR J16320-4751, IGR J16393-4643, IGR J16418-4532, IGRJ18027-2016 in order of preference) in order to study their spectral evolutionalong their orbital period, particularly the hydrogenic column density. We planto observe IGR J16320-4751 8 times 5 ks and IGR J16393-4643, IGR J16418-4532 andIGR J18027-2016 5 times 7 ks for a total of 145 ks. Because of the stronginteraction between the supergiant wind and the X-ray radiation of the accretedmaterial, these sources are ideal laboratories to study the relation between thecolumn density and the orbital period and derive the properties of the stellarwind.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2008-08-14T22:18:21Z/2008-09-17T03:39:30Z
Version 17.56_20190403_1200
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 2009-10-28T00:00:00Z
Last Update 2025-01-27
Keywords "spectral evolution", "xray radiation", "obscured hmxb", "igr j18027 2016", "igr j16393 4643", "accreted material", "hydrogenic column density", "obscured hmxb composed", "orbital period", "column density", "igr j16418 4532", "ideal laboratories", "stellar wind", "neutron star", "supergiant wind", "igr j16320 4751"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Juan Antonio Zurita Heras, 2009, 'Monitoring the hydrogenic column density in obscured HMXB', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-uupqyp7