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 |
Keywords | "optical doppler images", "xmm newton", "line ratios", "accretion coincide ?.", "accretion signatures", "accreting systems", "fast rotation", "mn lup", "soft emission", "uves spectral", "accretion causes", "x rays", "XMM", "doppler image", "tauri stars ctts", "XMM-Newton", "short rotation period", "ctts mn lup", "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 |