| Name | 074079 |
| Title | Cepheid Associates: Star Formation and Distance Calibration |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0740790101 |
| DOI | https://doi.org/10.5270/esa-4c5qsib |
| Author | Dr Nancy Remage Evans |
| Description | XMM-Newton observations are powerful discriminants between young stars and the old field population because of the well known relation between the age of low mass stars and their X-ray strength. We use this property to identify young resolved physical companions of Cepheids and also low mass members of clusters containing Cepheids. This will probe the maximum separation in Cepheid binaries, a diagnostic of star formation. The target list contains the 5 brightest Cepheids in the recent analysis of Cepheids in clusters (Anderson, et al. 2013). This project will identify low mass cluster members which provide a calibration of the distances of clusters. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2015-03-13T09:10:05Z/2015-03-13T20:31:45Z |
| 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 | 2016-04-01T22:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2016-04-01T22:00:00Z, 074079, 17.56_20190403_1200. https://doi.org/10.5270/esa-4c5qsib |