| Name | 040238 |
| Title | The Earliest Production of Hot Gas in Young Planetary Nebulae |
| URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0402380101 |
| DOI | https://doi.org/10.5270/esa-elldo2p |
| Author | Dr Martin Guerrero |
| Description | Planetary nebulae (PNe) consist of stellar material ejected by stars with masses <10 solar masses. Both fast stellar winds and collimated outflows contribute to the shaping of PN shells and fill the shell interiors with shock-heated gas at temperatures higher than 10E6 K. XMM and Chandra observations have produced the first unambiguous detections of diffuse X- ray emission from PNe, but the observed X-ray luminosities of PNe are generally much lower than theoretical expectations. Observations of a few young PNe hint at a short-lived phase of bright X- ray emission in early evolutionary stages. We request XMM observations of 4 very young PNe to further investigate the earliest history and physical conditions of hot gas produced by fast winds and collimated outflows in PNe. |
| Publication | No observations found associated with the current proposal |
| Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
| Temporal Coverage | 2007-02-19T05:41:29Z/2007-02-19T13:48:23Z |
| 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 | 2008-04-13T00:00:00Z |
| Publisher And Registrant | European Space Agency |
| Credit Guidelines | European Space Agency, 2008-04-13T00:00:00Z, 040238, 17.56_20190403_1200. https://doi.org/10.5270/esa-elldo2p |