Generation of solar spicules and subsequent atmospheric heating

Author:

Samanta Tanmoy1ORCID,Tian Hui1ORCID,Yurchyshyn Vasyl2ORCID,Peter Hardi3ORCID,Cao Wenda2ORCID,Sterling Alphonse4,Erdélyi Robertus56ORCID,Ahn Kwangsu2ORCID,Feng Song7ORCID,Utz Dominik8,Banerjee Dipankar9ORCID,Chen Yajie1ORCID

Affiliation:

1. School of Earth and Space Sciences, Peking University, Beijing 100871, People’s Republic of China.

2. Big Bear Solar Observatory, New Jersey Institute of Technology, 40386 North Shore Lane, Big Bear City, CA 92314-9672, USA.

3. Max Planck Institute for Solar System Research, Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany.

4. NASA Marshall Space Flight Center, Huntsville, AL 35812, USA.

5. Solar Physics and Space Plasma Research Centre, School of Mathematics and Statistics, University of Sheffield, Hounsfield Road, Sheffield S3 7RH, UK.

6. Department of Astronomy, Eötvös Loránd University, Budapest, H-1117 Budapest, Hungary.

7. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, People’s Republic of China.

8. Institute for Geophysics, Astrophysics and Meteorology–Institute of Physics, University of Graz, Universitätsplatz 5, 8010 Graz, Austria.

9. Indian Institute of Astrophysics, Koramangala, Bangalore 560034, India.

Abstract

Magnetic fields can generate spicules Spicules are small jets of plasma from the surface of the Sun that last a few minutes. Around a million are occurring at any moment, even during periods of low solar activity. The mechanism responsible for launching spicules remains unknown, as is their contribution to heating the solar corona. Samanta et al. observed emerging spicules and the magnetic fields in the adjacent solar surface. They found that many spicules appear a few minutes after a patch of reverse-polarity magnetic field and that the overlying corona is heated shortly afterward. This result provides evidence that magnetic reconnection can generate spicules, which then transfer energy to the corona. Science , this issue p. 890

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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