Proposal ID | 060567 |
Title | Enigmatic X-Ray Emission from a Wolf-Rayet Binary Theta Muscae |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0605670201 |
DOI | https://doi.org/10.5270/esa-3qjpxe5 |
Principal Investigator, PI | Mr Yasuharu Sugawara |
Abstract | We propose a follow-up XMM observation of THETA Muscae with WC star in front.Our primary goal is to identify the location of the Radiative RecombinationContinua (RRC) by monitoring the flux change in the difference orbital phasefrom the previous observation. If the RRC can exist in any binary with a varietyof the orbital period, we can expect the RRC is common in WC binary. If the RRConly exists in the short binary with period of an order of 10 days, it stronglyrestricts the physical parameters, such as density, of the plasma that formsRRC. The RRC is very unique structure to the WC+O binary, which is hardly seenin the other celestial objects. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2009-07-19T08:31:27Z/2009-07-19T23:36:44Z |
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 | 2010-09-02T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "orbital phase", "short binary", "theta muscae", "wc star", "celestial objects", "orbital period", "forms rrc", "enigmatic xray emission", "XMM", "physical parameters", "wc binary" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Mr Yasuharu Sugawara, 2010, 'Enigmatic X-Ray Emission from a Wolf-Rayet Binary Theta Muscae', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-3qjpxe5 |