A dataset provided by the European Space Agency

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
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0404920201

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