Proposal ID | 050237 |
Title | Solving the mystery of the X-ray emission from Herbig AeBe stars |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0502370201 |
DOI | https://doi.org/10.5270/esa-rcab9bv |
Principal Investigator, PI | Mr Hans Moritz Guenther |
Abstract | Many, if not all, Herbig Ae/Be stars (HAeBes) are known to be strong X-rayemitters, however, the origin of the observed X-ray emission is unclear. In afew cases it can be attributed to unseen companions, but in the case of theHAeBe star HD 163296 binarity can be excluded. CCD spectra from imagingobservations of HD 163296 can be well fitted by a single, cool (T=0.5 keV)thermal model, very much in contrast to typical active stars. We propose toobtain a high SNR, high spectral resolution grating spectrum in order to carryout direct plasma line diagnostics already successfully used in classical TTauri stars to physically characterise the X-ray emission regions in HD 163296and to solve the mystery of the X-ray emission mechanism in HAeBes. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2007-09-22T00:38:02Z/2007-09-24T13:14:25Z |
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 | 2008-10-26T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "hd 163296", "xray emission mechanism", "stars haebes", "unseen companions", "xray emitters", "supernova remnant", "xray emission region", "tauri stars", "physically characterise", "herbig aebe stars", "xray emission", "ccd spectra", "herbig ae", "HD 163296", "kev thermal model", "plasma line diagnostics" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Mr Hans Moritz Guenther, 2008, 'Solving the mystery of the X-ray emission from Herbig AeBe stars', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-rcab9bv |