Name | 020191 |
Title | CORONAL EMISSION FROM SUPERSATURATED STARS |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0201910101 |
DOI | https://doi.org/10.5270/esa-4cn63xp |
Author | Dr GIUSEPPINA MICELA |
Description | We propose to observe two young fast rotating stars observed with ROSAT in the supersaturation regime. We aim at detecting rotational modulation in their X-ray emission as recently found for VXR45, a star with similar rotational properties observed by us with XMM/Newton. If rotational modulation is a general characteristic of supersaturated stars, we will be able to determine the presence of an asymmetric distribution of coronal structures in such stars and from their (or lack of) spectral variations, to infer the characteristics of such structures constraining the properties of the underlying dynamo. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2004-10-18T15:58:57Z/2004-10-19T14:32:31Z |
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 | 2005-11-18T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr GIUSEPPINA MICELA, 2005, 020191, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-4cn63xp |