Long-Term Independence of Solar Wind Polytropic Index on Plasma Flow Speed
The paper derives the polytropic indices over the last two solar cycles (years 1995–2017) for the solar wind proton plasma near Earth (~1 AU). We use ~92-s datasets of proton plasma moments (speed, density, and temperature), measured from the Solar Wind Experiment instrument onboard Wind s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-10-01
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| Series: | Entropy |
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| Online Access: | http://www.mdpi.com/1099-4300/20/10/799 |