| Name | 040341 |
| Title | A high-resolution X-ray spectra of a classical T Tauri star |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0403410101 |
| DOI | https://doi.org/10.5270/esa-iyxdubp |
| Author | European Space Agency |
| Description | Comparisons of X-ray emission from accreting and non-accreting T Tauri stars (TTSs) demonstrate that accretion affects the properties of the hot gas, but the origin of X-ray emission from accreting TTSs remains uncertain. The few existing high-resolution X-ray spectra of classical TTSs (CTTSs) have been particularly intriguing, revealing low forbidden-to-intercombination ( f/i ) line ratios indicative of either a high electron density or intense FUV radiation field, both hard and soft X-ray emission, and often a high Ne abundance relative to O. We propose to obtain RGS spectra of the CTTSs EX Lupi and FK Ser, which when combined with previous high-resolution X-ray spectra will allow us to correlate the f/i ratio with other stellar properties, including the mass accretion rate. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2006-09-18T01:06:35Z/2006-09-18T22:33:24Z |
| Version | 17.56_20190403_1200 |
| Mission Description | The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's 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 Earth's 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 | 2008-08-29T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2008, A High-Resolution X-Ray Spectra Of A Classical T Tauri Star, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-iyxdubp |