kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Alpha-to-proton Temperature Ratio Distributions Using Parker Solar Probe Measurements
KTH, School of Engineering Sciences (SCI).
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Space and Plasma Physics.ORCID iD: 0000-0003-1654-841X
2024 (English)In: Astrophysical Journal Letters, ISSN 2041-8205, E-ISSN 2041-8213, Vol. 964, no 1, article id L2Article in journal (Refereed) Published
Abstract [en]

The distributions of the temperature excess of alphas to protons (epsilon) were studied using Parker Solar Probe measurements for Encounters 2 through 14. The distributions were mapped based on heliographic distance, Coulomb number, plasma beta, and Alfven Mach number (M (A) ). The importance of collisional effects in the thermalization of solar wind is observed for a wide range of Coulomb numbers. The distributions correlate better with N beta and NM (A) than just N. Furthermore, evidence was found for a narrow region immediately above the Alfven surface (1 < M (A) < 2) where epsilon has values much higher than the mass ratio.

Place, publisher, year, edition, pages
American Astronomical Society , 2024. Vol. 964, no 1, article id L2
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-344696DOI: 10.3847/2041-8213/ad2dedISI: 001182195900001Scopus ID: 2-s2.0-85187693090OAI: oai:DiVA.org:kth-344696DiVA, id: diva2:1847059
Note

QC 20240326

Available from: 2024-03-26 Created: 2024-03-26 Last updated: 2024-03-26Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Vaivads, Andris

Search in DiVA

By author/editor
Amaro, Mario B.Vaivads, Andris
By organisation
School of Engineering Sciences (SCI)Space and Plasma Physics
In the same journal
Astrophysical Journal Letters
Astronomy, Astrophysics and Cosmology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 24 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf