| Name | 014888 |
| Title | Elemental abundances in the corona of Gl355 (LQ Hya) |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0148880101 |
| DOI | https://doi.org/10.5270/esa-5o72c97 |
| Author | Dr Stefano Covino |
| Description | We propose to observe the very active BY Dra star Gl355 (LQ Hya). Our goal is to study the detailed individual elemental abundances in its corona. The XMM-Newton instruments are perfectly suitable for this purpose since its superior spectral resolution allows for abundance determinations of many individual elements. The metal abundances in the coronae of Gl355 will be compared element by element to the abundances in the photosphere previously obtained by high-resolution optical spectroscopy. Our aim is to better understand the physical mechanisms driving the lack of metallicity in the corona of some late-type active stars, such as Gl355, with respect to the photosphere. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2003-05-09T04:51:43Z/2003-11-22T12:49:59Z |
| 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 | 2005-01-01T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, Dr Stefano Covino, 2005, 014888, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-5o72c97 |