Name | 040492 |
Title | Neon in Low Activity Suns and the Solar Model Problem |
URL | https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404920101 |
DOI | https://doi.org/10.5270/esa-ajaggw4 |
Author | Dr Jeremy Drake |
Description | A recent fundamental problem with the standard solar model has arisen that could be solved if the solar Ne abundance is about 2.5 times higher than currently supposed - just the value found in stellar coronae. However, solar measurements for isolated coronal features are generally lower and only one other inconclusive Ne/O measurent exists for low activity solar analogues. EPIC PN Ne/O measurements of a small sample of early G dwarfs will tell us whether existing solar measurements are representative or misleading, in what stars Ne might be fractionated, and whether Ne can solve the solar model problem. The results will also be important for determining the cosmic abundance of neon and constraining supernova type II enrichment. |
Publication | No observations found associated with the current proposal |
Instrument | EMOS1, EMOS2, EPN, OM, RGS1, RGS2 |
Temporal Coverage | 2006-08-05T07:39:05Z/2006-11-03T09:57:37Z |
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 | 2007-12-14T00:00:00Z |
Publisher And Registrant | European Space Agency |
Credit Guidelines | European Space Agency, Dr Jeremy Drake, 2007, 040492, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-ajaggw4 |