A dataset provided by the European Space Agency

Proposal ID 065576
Title A pilot study to Doppler-image an accretion spot
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https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0655760101

DOI https://doi.org/10.5270/esa-tvwz0a1
Principal Investigator, PI Dr Hans Moritz Guenther
Abstract Classical T Tauri stars (CTTS) are young, accreting systems. The accretion isthought to cause a soft X-ray excess and unusual line ratios in the He-liketriplets. The accretion spots can also be seen with optical Doppler-imaging;however, the final test to correlate these signatures - simultaneous X-ray andground-based observations - is still missing. We propose a 15 ks pilot study ofMN Lup, the prime target for simultaneous observations from the optical point ofview, to confirm its CTTS status and characterize its X-ray properties.
Publications
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2010-08-03T08:03:42Z/2010-08-03T15:29:28Z
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 2011-08-21T00:00:00Z
Last Update 2025-01-27
Keywords "accretion spot", "ctts status", "soft xray excess", "optical doppler imaging", "accreting systems", "tauri stars ctts", "doppler image", "xray properties", "line ratios", "prime target", "mn lup", "accretion spots", "final test"
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Hans Moritz Guenther, 2011, 'A pilot study to Doppler-image an accretion spot', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-tvwz0a1