In situ observations of large-amplitude Alfvén waves heating and accelerating the solar wind-Reference-Cited by-同舟云学术

In situ observations of large-amplitude Alfvén waves heating and accelerating the solar wind

Published:2024-08-30 Issue:6712 Volume:385 Page:962-966
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Rivera Yeimy J.¹^ORCID,Badman Samuel T.¹^ORCID,Stevens Michael L.¹^ORCID,Verniero Jaye L.²^ORCID,Stawarz Julia E.³^ORCID,Shi Chen⁴^ORCID,Raines Jim M.⁵^ORCID,Paulson Kristoff W.¹^ORCID,Owen Christopher J.⁶^ORCID,Niembro Tatiana¹^ORCID,Louarn Philippe⁷,Livi Stefano A.⁵⁸^ORCID,Lepri Susan T.⁵^ORCID,Kasper Justin C.⁵⁹^ORCID,Horbury Timothy S.¹⁰^ORCID,Halekas Jasper S.¹¹^ORCID,Dewey Ryan M.⁵^ORCID,De Marco Rossana¹²^ORCID,Bale Stuart D.¹³^ORCID

Affiliation:

1. Center for Astrophysics, Harvard and Smithsonian, Cambridge, MA 02138, USA.

2. NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

3. Department of Mathematics, Physics, and Electrical Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.

4. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095, USA.

5. Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI 48109, USA.

6. Mullard Space Science Laboratory, University College London, Holmbury St Mary RH5 6NT, UK.

7. Institut de Recherche en Astrophysique et Planétologie, Centre National de la Recherche Scientifique, University of Toulouse, Toulouse, France.

8. Southwest Research Institute, San Antonio, TX 78228, USA.

9. BWX Technologies Inc, Washington, DC 20001, USA.

10. Department of Physics, Imperial College London, London SW7 2AZ, UK.

11. Department of Physics and Astronomy, University of Iowa, IA 52242, USA.

12. Institute for Space Astrophysics and Planetology, 00133 Rome, Italy.

13. Space Sciences Laboratory, University of California, Berkeley, CA 94720, USA.

Abstract

After leaving the Sun’s corona, the solar wind continues to accelerate and cools, but more slowly than expected for a freely expanding adiabatic gas. Alfvén waves are perturbations of the interplanetary magnetic field that transport energy. We use in situ measurements from the Parker Solar Probe and Solar Orbiter spacecraft to investigate a stream of solar wind as it traverses the inner heliosphere. The observations show heating and acceleration of the plasma between the outer edge of the corona and near the orbit of Venus, along with the presence of large-amplitude Alfvén waves. We calculate that the damping and mechanical work performed by the Alfvén waves are sufficient to power the heating and acceleration of the fast solar wind in the inner heliosphere.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/science.adk6953

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