Results 251 to 260 of about 84,681 (280)

3D upper crustal structure modelling in southwestern Sicily through multiapproach onshore-offshore data: insight into Sciacca Geothermal Field. [PDF]

Sci Rep
Rizzo GF, Maiorana M, Gasparo Morticelli M, Lo Presti V, Agate M, Sulli A.   +5 more
europepmc   +1 more source

Quantifying widespread hydrothermal chimneys on the East Pacific Rise flanks between 9°43' and 57'N. [PDF]

Sci Adv
Wu JN, Parnell-Turner R, Fornari DJ, Barreyre T, McDermott JM.   +4 more
europepmc   +1 more source

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Turbulent dynamics inside the cavity of hot flow anomaly

Planetary and Space Science, 2014
In this paper the turbulent dynamics of a hot flow anomaly (HFA) event is investigated. The HFAs are transient plasma disturbances generated by the interaction of the bow shock (BS) and a tangential discontinuity (TD) embedded in the solar wind. The typical changes of the plasma parameters inside HFAs (increased plasma temperature, low bulk velocity ...
P. Kovács, G. Facskó, I. Dandouras
openaire   +3 more sources

Spontaneous hot flow anomalies at quasi‐parallel shocks: 1. Observations

Journal of Geophysical Research: Space Physics, 2013
We present Time History of Events and Macroscale Interactions during Substorms (THEMIS) observations of a “Spontaneous Hot Flow Anomaly” (SHFA) upstream from the prenoon bow shock at 0431 UT on 12 August 2007. Although the SHFA exhibited the greatly heated and deflected solar wind plasmas used to identify hot flow anomalies (HFAs), it did not result ...
H. Zhang, D. G. Sibeck, Q.‐G. Zong, N. Omidi, D. Turner, L. B. N. Clausen   +5 more
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Propagation characteristics of hot flow anomalies

2021
<p>Hot flow anomalies (HFAs), characterized by heated plasma and flow deflection, are frequently observed near Earth’s and other planetary bow shocks. There are two kinds of HFAs, classic HFAs formed by the interaction of tangential discontinuities (TD) and the bow shock, and spontaneous HFAs (SHFAs) which are not associated
Xiaoqiong Zhu, Mengmeng Wang, Quanqi Shi, Hui Zhang, Anmin Tian, Shutao Yao, Ruilong Guo, Ji Liu, Shichen Bai, Shuai Zhang, Wensai Shang, Zhe Niu   +11 more
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Statistical Study of Foreshock Bubbles, Hot Flow Anomalies, and Spontaneous Hot Flow Anomalies and Their Substructures Observed by MMS

Journal of Geophysical Research: Space Physics, 2022
AbstractForeshock transients such as foreshock bubbles (FBs), hot flow anomalies (HFAs), and spontaneous hot flow anomalies (SHFAs) display heated, tenuous cores and large flow deflections bounded by compressional boundaries. THEMIS and Cluster observations show that some cores contain local density enhancements which can be studied to better ...
Andrew Vu, Terry Z. Liu, Hui Zhang, Craig Pollock   +3 more
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Cluster observations of hot flow anomalies

Journal of Geophysical Research: Space Physics, 2004
On 2 April 2002, Cluster entered the solar wind at high northern latitudes and observed a series of disturbances upstream of the bow shock. We suggest that these were signatures of a sequence of hot flow anomalies (HFAs), observed at different stages of development.
E. A. Lucek, T. S. Horbury, A. Balogh, I. Dandouras, H. Rème   +4 more
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A study of particle flows in hot flow anomalies

Planetary and Space Science, 2005
Abstract Hot flow anomalies (HFAs) are distinct disturbances of the solar wind flow observed often in the bow shock vicinity. Both experiment and theory suggest that these disturbances are created at the intersection of the bow shock and tangential discontinuity (TD) of the interplanetary magnetic field (IMF). The discontinuity is swept along the bow
A. Koval, J. Šafránková, Z. Němeček
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Planetary ions acceleration in a hot flow anomaly at Mars

Planetary and Space Science, 2023
Previous observation of a single hot flow anomaly (HFA) at Earth by MMS mission reported solar wind protons effective acceleration inside these structures to nearly 1 MeV under certain conditions via first-order Fermi acceleration process. Current study focuses on the analysis of a single HFA registered at Mars by MAVEN spacecraft.
Artyom Shestakov, Sergey Shuvalov
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