| Proposal ID | 086158 |
| Title | Understanding X-ray emission in intermediate-mass T Tauri stars |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0861580301 |
| DOI | https://doi.org/10.57780/esa-7k5gmdu |
| Principal Investigator, PI | Dr Gwendolyn Meeus |
| Abstract | The origin of X-ray emission in Herbig Ae/Be stars, intermediate-mass pre-mainsequence stars, is still disputed, as these objects are not expected to be ableto drive a dynamo to sustain magnetic activity. Their progenitors, theintermediate-mass T Tauri stars (IMTTS), cover the transition from a convectivecore to a fully radiative one, which is important for the presence of a magneticfield, and thus their X-ray activity. At the same time IMTTS are still accretingfrom their protoplanetary discs, which also contributes to their X-ray output.We have compiled a (to our knowledge complete) sample of 75 IMTTS, and aim tocompare their X-ray properties in relation to their masses, ages and accretionrates. We apply for an XMM survey for 29 IMTTS to complete the sample coverage in X-rays. |
| Publications |
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| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2020-07-26T22:16:29Z/2021-02-21T15:43:53Z |
| Version | 18.02_20200221_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 | 2022-03-18T00:00:00Z |
| Keywords | "magnetic field", "xray properties", "knowledge complete sample", "sample coverage", "convective core", "xray activity", "sustain magnetic activity", "75 imtts", "tauri stars imtts", "tauri stars", "intermediate mass", "accretion rates", "protoplanetary discs", "XMM", "xmm survey", "herbig ae", "time imtts", "xray output", "xray emission" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Gwendolyn Meeus, 2022, 'Understanding X-ray emission in intermediate-mass T Tauri stars', 18.02_20200221_1200, European Space Agency, https://doi.org/10.57780/esa-7k5gmdu |