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Statistical Properties of Hot Flow Anomalies around Mars
2023Hot flow anomalies (HFAs) are not only a terrestrial, but also a solar-system-wide phenomenon that could cause strong perturbations of the planetary magnetosphere and ionosphere. Based on the observations of Mars Atmosphere and Volatile EvolutioN (MAVEN) upstream of the Martian bow shock from 2014 to 2020, we have investigated the statistical ...
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Cavitons and spontaneous hot flow anomalies in earth’s foreshock
2023In recent years we have learnt that foreshock transients play an influential role in the solar wind coupling with the Earth’s magnetosphere. Such transients include cavitons and Spontaneous Hot Flow Anomalies (SHFAs) both of which are characterized by dips in magnetic field magnitude and ion density, and are surrounded ...
Blanco-Cano, X. +3 more
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Hot flow anomaly formation and evolution: Cluster observations
Journal of Geophysical Research: Space Physics, 2013In this study, we have examined the formation and evolution of 513 hot flow anomalies (HFAs) from 2003 to 2009 observed by the Cluster spacecraft. Our results show that an original upstream discontinuity in the vicinity of an HFAs and/or at least one side of the HFA with the convective electric field pointing toward the discontinuity may help an HFA ...
Shan Wang, Qiugang Zong, Hui Zhang
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Propagation properties of Hot Flow Anomalies at Mars: MAVEN observations
Planetary and Space Science, 2019Abstract We present a statistical study of propagation characteristics of Hot Flow Anomalies (HFAs) at Mars based on 19 manually selected events registered by the NASA Mars Atmosphere and Volatile EvolutioN (MAVEN) spacecraft. Based on the number of registered events during the observed time interval we conclude that HFAs are common foreshock ...
S.D. Shuvalov +3 more
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Hot flow anomalies near the Earth's bow shock
Advances in Space Research, 1995Abstract The discovery in 1984/85 of short intervals (a few minutes) near to the Earth's bow shock of very hot plasma flowing roughly perpendicular to the nominal solar wind direction sparked some intrigue as to the underlying cause(es) and local process(es). Typical characteristics of these events, now known as Hot Flow Anomalies (HFAs), include one
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Planetary ions acceleration in a hot flow anomaly at Mars
Planetary and Space Science, 2023Artyom Shestakov, Sergey Shuvalov
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Hot Flow Anomalies Delimiting Traveling Foreshocks
Transient upstream mesoscale structures (TUMS) are an important topic in the field of research of the near-Earth environment. These events form upstream of the Earth's bow shock and can perturb regions downstream it, i.e. magnetosheath and magnetopause.Primoz Kajdic +18 more
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Motion of Classic and Spontaneous Hot Flow Anomalies Observed by Cluster
Journal of Geophysical Research: Space Physics, 2021Mengmeng Wang, Hui Zhang, A M Tian
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Electron Heating Associated with Spontaneous Hot Flow Anomaly at Mars
The Mars foreshock is populated by backstreaming particles that can generate a variety of foreshock transients and plasma waves. Using observations from Mars Atmosphere and Volatile EvolutioN (MAVEN) mission on 4 March 2018, we report a clear electron heating associated with a spontaneous hot flow anomalies (SHFAs) at Mars, accompanied by lower hybrid ...Yangjun Chen, Mingyu Wu, Tielong Zhang
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Cluster observations of hot flow anomalies with large flow deflections: 1. Velocity deflections
Journal of Geophysical Research: Space Physics, 2013Q -G Zong, Hui Zhang
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