uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
Pumping out the atmosphere of Mars through solar wind pressure pulses
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Swedish Institute of Space Physics, Uppsala Division.
Show others and affiliations
2010 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 37, L03107- p.Article in journal (Refereed) Published
Abstract [en]

We study atmospheric escape from Mars during solar wind pressure pulses. During the solar minimum of 2007 08 we have observed 41 high pressure events, which are predominantly identified as corotating interaction regions (CIR) while a few are coronal mass ejections (CME), in data from the Advanced Composition Explorer (ACE) upstream of the Earth. 36 of these events are also identified using Mars Express (MEX) data at Mars. We use MEX measurements at Mars to compare the antisunward fluxes of heavy planetary ions during the passage of these pulses to the fluxes during quiet solar wind conditions. The ion fluxes are observed to increase by a factor of similar to 2.5, on average. Hence, a third of the total outflow from Mars takes place during similar to 15% of the time, when a solar wind pressure pulse impacts on the planet. This can have important consequences for the total time-integrated outflow of plasma from Mars.

Place, publisher, year, edition, pages
2010. Vol. 37, L03107- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-147705DOI: 10.1029/2009GL041814ISI: 000274463300002OAI: oai:DiVA.org:uu-147705DiVA: diva2:400747
Available from: 2011-02-28 Created: 2011-02-28 Last updated: 2011-02-28Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Swedish Institute of Space Physics, Uppsala Division
In the same journal
Geophysical Research Letters
Physical Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 148 hits
ReferencesLink to record
Permanent link

Direct link