activity
20202026
most citedCompositional metrics of fast and slow Alfvenic solar wind emerging from coronal holes and their boundaries

17 citations · 46 across the 17 of their papers we have counts for

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Showing 2025Show all

7 papers · 1 filter

physics.space-ph2025

On the Relation between Source Region and In-situ Variability of Low Solar Wind Streams

Kai Jaffarove, Tamar Ervin, Stuart D. Bale

Parker Solar Probe (PSP) observed a high speed stream near the Sun () in March 2025. As this stream was observed near the Sun, it allowed for an unparalleled oppo…

astro-ph.SR2025

Proton specific entropy as a proxy for the charge state ratio over heliocentric distance

Jack D. Collard, Tamar Ervin, Ryan M. Dewey +10

While the fast solar wind has well-established origins in coronal holes, the source of the slow solar wind remains uncertain. Compositional metrics, such as heavy ion charge state…

astro-ph.SR2025

In situ Evidence of 5-minute Oscillations from Parker Solar Probe

Zesen Huang, Marco Velli, Olga Panasenco +19

The Sun's surface vibrates in characteristic 5-minute oscillations, known as p-modes, generated by sound waves trapped within the convection zone. Although these oscillations have…

physics.space-ph2025★ 4 cited

The impact of Alfvenic shear flow on magnetic reconnection and turbulence

Tamar Ervin, Alfred Mallet, Stefan Eriksson +9

Magnetic reconnection is a fundamental and omnipresent energy conversion process in plasma physics. Novel observations of fields and particles from Parker Solar Probe (PSP) have sh…

astro-ph.SR2025

Stochastic Heating in the Sub-Alfvénic Solar Wind

Trevor A. Bowen, Tamar Ervin, Alfred Mallet +7

Collisionless dissipation of turbulence is important for heating plasmas in astrophysical, space physics, and laboratory environments, controlling energy, momentum and particle tra…

physics.plasm-ph2025★ 2 cited

Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations

Alfred Mallet, Kristopher G. Klein, Benjamin D. G. Chandran +2

We study the interaction of an ion with a fluctuation in the electromagnetic fields that is localized in both space and time. We study the scale-dependence of the interaction in bo…

astro-ph.SR2025

Differentiating the acceleration mechanisms in the slow and Alfvénic slow solar wind

Yeimy J. Rivera, Samuel T. Badman, J. L. Verniero +18

In the corona, plasma is accelerated to hundreds of kilometers per second, and heated to temperatures hundreds of times hotter than the Sun's surface, before it escapes to form the…