Proposal ID | 067058 |
Title | X-rays and Doppler imaging: Do soft emission and accretion coincide? |
Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0670580101 |
DOI | https://doi.org/10.5270/esa-dcdq965 |
Principal Investigator, PI | Dr Uwe Wolter |
Abstract | Classical T Tauri stars (CTTS) are young, accreting systems. The accretioncauses a variable soft X-ray excess and unusual line ratios in the He-liketriplets. Accretion signatures can also be seen in optical Doppler images.However, the true correlation of these different signatures only accessible bysimultaneous X-ray and ground-based observations has not been studied to date.We propose an 80 ksec XMM-Newton observation covering two full rotations of theCTTS MN Lup; furthermore, we propose simultaneous VLT/UVES spectral observationsto obtain a Doppler image of its surface. With its short rotation period andfast rotation, MN Lup is a truly unique target for these observations. |
Publications |
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Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2011-08-12T00:30:17Z/2011-08-13T05:53:04Z |
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 | 2012-09-06T00:00:00Z |
Last Update | 2025-01-27 |
Keywords | "accretion causes", "xmm newton", "line ratios", "mn lup", "XMM", "accretion signatures", "accretion coincide ?.", "uves spectral", "accreting systems", "fast rotation", "tauri stars ctts", "XMM-Newton", "short rotation period", "ctts mn lup", "optical doppler images", "doppler image", "soft emission", "x rays", "doppler imaging" |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Uwe Wolter, 2012, 'X-rays and Doppler imaging: Do soft emission and accretion coincide?', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-dcdq965 |