| Proposal ID | 014650 |
| Title | LMXBs in the Galactic Halo: The Nature of UW CrB |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0146500101 |
| DOI | https://doi.org/10.5270/esa-3j2e1wn |
| Principal Investigator, PI | Dr Pasi Hakala |
| Abstract | We propose to observe UW CrB (MS1603+26), a 111 min period high galacticlatitude interacting binary. This high inclination system provides us with aunique astrophysical laboratory to study the structure and evolution of theprecessing warped discs, important in many areas of astrophysics. With its shortorbital period and rapid variability in the accretion disc structure (asdemonstrated by the rapidly changing optical light curve shapes), UW CrB isprobably the best test case for the theories of accretion disc eccentricity,warping and precession. Furthermore, as a probable halo object, the system willalso serve as a valuable comparison case for the LMXB evolutionary scenarios. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-01-20T01:25:14Z/2003-01-22T08:46:04Z |
| 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 | 2004-02-21T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "galactic halo", "short orbital period", "valuable comparison", "rapid variability", "inclination system", "lmxb evolutionary scenarios", "accretion disc eccentricity", "uw crb", "astrophysical laboratory", "precessing warped discs", "probable halo object", "uw crb ms1603", "accretion disc structure" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Pasi Hakala, 2004, 'LMXB's in the Galactic Halo: The Nature of UW CrB', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3j2e1wn |