| Name | 004534 |
| Title | A search for cyclic activity in the nearby stars Alpha Cen and Procyon |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0045340101 |
| DOI | https://doi.org/10.5270/esa-12cvs16 |
| Author | European Space Agency |
| Description | We propose to observe the nearby inactive stars Alpha Cen and Procyon regularly with XMM. Both sources are visible to XMM in 6 month intervals. Both stars are very close and hence the allow the detection of weak fluxes even at higher energies. Specifically solar-like X-ray flux variations in the 1 - 8 Angstrom band pass (as measured by GOES) will be detectable with XMM EPIC. Also, for each observation a good XMM RGS spectrum will be obtained so that spectral changes over a time scale of years can be detected and analysed. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2001-01-25T14:16:08Z/2004-07-29T05:59:20Z |
| 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 | 2005-08-28T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2005, A Search For Cyclic Activity In The Nearby Stars Alpha Cen And Procyon, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-12cvs16 |