| Proposal ID | 060486 |
| Title | Phase-resolved X-ray study of the accreting binary T Tauri star V4046 Sgr |
| Download Data Associated to the proposal | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0604860201 |
| DOI | https://doi.org/10.5270/esa-4b8pkdf |
| Principal Investigator, PI | Dr Thierry Montmerle |
| Abstract | We propose to observe the twin binary T Tauri star V4046 Sgr, to look forphase-resolved, high- resolution spectroscopic signatures of magnetic accretion.All the detectors of XMM will be used, to get access to accurate densities,temperature, and elemental abundances of the plasma in the accretion shockregion, and to characterize flare emission. With the RGS, we will be able to getelemental abundances resolved down to 1/10, and density-sensitive f/i ratiosdown to 1/4, of the 2.4- day orbital period of the system. Taking into accountthe visibility gaps in the XMM orbit, *we need to observe 3 contiguous orbitalperiods*, giving a total exposure request of 300 ksec. |
| Publications |
|
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2009-09-15T00:57:56Z/2009-09-20T11:01:19Z |
| 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 | 2010-10-13T00:00:00Z |
| Last Update | 2025-01-27 |
| Keywords | "accretion shock region", "accreting binary", "flare emission", "phase resolved xray", "xmm orbit", "resolution spectroscopic signatures", "orbital period", "visibility gaps", "elemental abundance resolved", "XMM", "phase resolved", "density sensitive", "elemental abundance", "total exposure", "magnetic accretion" |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Thierry Montmerle, 2010, 'Phase-resolved X-ray study of the accreting binary T Tauri star V4046 Sgr', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4b8pkdf |