NOTICE: Use the parameters below to customize your search. Regular expressions and bolean "AND" will to match the search. In the case of "Author name", the search is performed using only for the last name.
Found 4 entries in the Bibliography.
Showing entries from 1 through 4
Magnetic Field Dropouts and Associated Plasma Wave Emission near the Electron Plasma Frequency at Switchback Boundaries as Observed by the Parker Solar Probe
The first solar encounters by the Parker Solar Probe revealed the magnetic field to be dominated by short field reversals in the radial direction, referred to as switchbacks. While radial velocity and proton temperature were shown to increase inside the switchbacks, \ensuremath\midB\ensuremath\mid exhibits very brief dropouts only at the switchback boundaries. Brief intensifications in spectral density measurements near the electron plasma frequency, f $_pe$, were also observed at these boundaries, indicating the presenc ...
Rasca, Anthony; Farrell, William; Whittlesey, Phyllis; MacDowall, Robert; Bale, Stuart; Kasper, Justin;
Published by: \apj Published on: aug
YEAR: 2022   DOI: 10.3847/1538-4357/ac80c3
Parker Data Used; Solar magnetic fields; Plasma physics; Solar wind; 1503; 2089; 1534
Switchback Boundary Dissipation and Relative Age
We examine Parker Solar Probe (PSP) magnetic field and plasma observations during its first encounter with the Sun in early 2018 November. During this perihelion time, impulsive reversals in the magnetic field, called switchbacks, were found in the data set characterized by a quick rotation in B along with a simultaneous increase in solar wind flow. In this work, we examine the structure and morphology of 920 switchback boundaries as PSP enters and exits the structures, specifically looking for evidence of boundary degra ...
Farrell, W.~M.; Rasca, A.~P.; MacDowall, R.~J.; Gruesbeck, J.~R.; Bale, S.~D.; Kasper, J.~C.;
Published by: \apj Published on: jul
YEAR: 2021   DOI: 10.3847/1538-4357/ac005b
Parker Data Used; Solar wind; Solar Physics; Solar magnetic flux emergence; Solar magnetic fields; 1534; 1476; 2000; 1503
Near-Sun Switchback Boundaries: Dissipation with Solar Distance
The most surprising result from the first solar encounters by the Parker Solar Probe (PSP) is the large amount of brief magnetic field reversals often referred to as switchbacks. Switchbacks have previously been observed further downstream in the solar wind by spacecraft such as Helios 2 at 62 R$_s$ from the Sun. However, these observations lack a distinct proton temperature increase detected inside switchbacks by PSP, implying that they are evolving over time to eventually reach a pressure balance at the switchback boundari ...
Rasca, Anthony; Farrell, William; MacDowall, Robert; Bale, Stuart; Kasper, Justin;
Published by: \apj Published on: aug
YEAR: 2021   DOI: 10.3847/1538-4357/ac079f
The Sun; Solar wind; Solar Physics; 1693; 1534; 1476; Parker Data Used
Mass loading of the solar wind by a sungrazing comet
Collisionless mass loading was suggested by Biermann et al. (1967) for describing interactions between the solar wind and cometary atmospheres. Recent observations have led to an increased interest in coronal mass loading due to sungrazing comets and collisional debris of sunward migrating interplanetary dust particles. In a previous paper, we presented a 3-D MHD model of the solar corona based on the Block-Adaptive-Tree-Solarwind-Roe-Upwind-Scheme code which includes the interaction of dust with the solar wind. We have s ...
Rasca, A.; Oran, R.; anyi, M.;
Published by: Geophysical Research Letters Published on: 08/2014
YEAR: 2014   DOI: 10.1002/2014GL060990