| Proposal ID | 060637 |
| Title | Pulsations and long term variability of the second eclipsing HMXB in M 33 |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0606370301 |
| DOI | https://doi.org/10.5270/esa-kwnbnuq |
| Principal Investigator, PI | Dr Wolfgang Pietsch |
| Abstract | We propose 11 observations with about 3.4 day spacing of the second eclipsinghigh mass X-ray binary in M33. We will search for pulsations of the source downto 200ms and for an expected long term modulation of the source similar to the35 day cycle of Her X-1. The results will allow us to decide whether the compactobject in the system is a neutron star or a black hole. The Doppler delay curveof pulsations, if present, combined with the well determined orbital periodcould provide the mass function of the system. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2010-01-07T13:04:04Z/2010-02-11T03:29:31Z |
| 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 | 2011-03-10T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "mass function", "mass xray binary", "term modulation", "M 33", "compact object", "term variability", "doppler delay curve", "orbital period", "black hole", "neutron star", "eclipsing hmxb" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Wolfgang Pietsch, 2011, 'Pulsations and long term variability of the second eclipsing HMXB in M 33', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-kwnbnuq |