| Proposal ID | 014263 |
| Title | Are Magnetic He--W/Si Stars Intrinsic X-Ray Emitters |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0142630301 |
| DOI | https://doi.org/10.5270/esa-48dbzy3 |
| Principal Investigator, PI | Dr Stephen Drake |
| Abstract | We propose to observe 3 Magnetic Chemically Peculiar stars in order to getmoderately-exposed PN spectra of two of them known to be X-ray sources, and totry and detect emission from the third star. These X-ray sources are moderatelyfaint and spectrally soft, and hence the XMM-Newton EPIC is the best instrumentto observe them. We will analyze the spectra for evidence that the X-rayemitting plasma is intrinsic to the MCP stars rather than from unresolvedlow-mass companions, e.g., by determining elemental abundances to see if theyare significantly non-solar. We will also study the X-ray emission, both overthe entire detected energy range and as function of energy, as a function oftime, and will also apply for supporting contemporaneous VLA observations. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-09-05T19:21:12Z/2003-09-06T01:31:22Z |
| Version | 21.51_20241115_1113 |
| 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 | 2004-10-06T00:00:00Z |
| Last Update | 2026-06-19 |
| Keywords | "moderately faint", "EPIC", "si stars", "xray emitting plasma", "magnetic chemically", "energy range", "XMM", "xray emission", "xray sources", "spectrally soft", "mcp stars", "XMM-Newton", "xmm newton epic", "xray emitters", "determining elemental abundance" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Stephen Drake, 2004, 'Are Magnetic He--W/Si Stars Intrinsic X-Ray Emitters', 21.51_20241115_1113, European Space Agency, https://doi.org/10.5270/esa-48dbzy3 |
| Rights | Data hosted in the ESA Space Science Archives are distributed under the CC BY-NC 3.0 IGO license. |