PSP Bibliography


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Found 8 entries in the Bibliography.

Showing entries from 1 through 8


Modeling of Joint Parker Solar Probe-Metis/Solar Orbiter Observations

We present the first theoretical modeling of joint Parker Solar Probe (PSP)-Metis/Solar Orbiter (SolO) quadrature observations. The combined observations describe the evolution of a slow solar wind plasma parcel from the extended solar corona (3.5-6.3 R $_\ensuremath\odot$) to the very inner heliosphere (23.2 R $_\ensuremath\odot$). The Metis/SolO instrument remotely measures the solar wind speed finding a range from 96 to 201 km s$^-1$, and PSP measures the solar wind plasma in situ, observing a radial speed of 219.34 km s$ ...

Adhikari, L.; Zank, G.~P.; Telloni, D.; Zhao, L.;

Published by: \apjl      Published on: oct

YEAR: 2022     DOI: 10.3847/2041-8213/ac91c6

Parker Data Used; The Sun; Solar wind; interplanetary turbulence; 1693; 1534; 830; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

2D and Slab Turbulent Cascade Rates in the Inner Heliosphere

Adhikari, L.; Zank, G.~P.; Zhao, L.; Telloni, D.;

Published by: \apj      Published on: oct

YEAR: 2022     DOI: 10.3847/1538-4357/ac9234

Parker Data Used; The Sun; interplanetary turbulence; Heliosphere; 1693; 830; 711

Suprathermal Ion Energy Spectra and Anisotropies near the Heliospheric Current Sheet Crossing Observed by the Parker Solar Probe during Encounter 7

We present observations of \ensuremath\gtrsim10-100 keV nucleon$^-1$ suprathermal (ST) H, He, O, and Fe ions associated with crossings of the heliospheric current sheet (HCS) at radial distances of <0.1 au from the Sun. Our key findings are as follows: (1) very few heavy ions are detected during the first full crossing, the heavy-ion intensities are reduced during the second partial crossing and peak just after the second crossing; (2) ion arrival times exhibit no velocity dispersion; (3) He pitch-angle distributions track t ...

Desai, M.~I.; Mitchell, D.~G.; McComas, D.~J.; Drake, J.~F.; Phan, T.; Szalay, J.~R.; Roelof, E.~C.; Giacalone, J.; Hill, M.~E.; Christian, E.~R.; Schwadron, N.~A.; McNutt, R.~L.; Wiedenbeck, M.~E.; Joyce, C.; Cohen, C.~M.~S.; Davis, A.~J.; Krimigis, S.~M.; Leske, R.~A.; Matthaeus, W.~H.; Malandraki, O.; Mewaldt, R.~A.; Labrador, A.; Stone, E.~C.; Bale, S.~D.; Verniero, J.; Rahmati, A.; Whittlesey, P.; Livi, R.; Larson, D.; Pulupa, M.; MacDowall, R.~J.; Niehof, J.~T.; Kasper, J.~C.; Horbury, T.~S.;

Published by: \apj      Published on: mar

YEAR: 2022     DOI: 10.3847/1538-4357/ac4961

Parker Data Used; The Sun; Solar magnetic reconnection; Interplanetary particle acceleration; interplanetary magnetic fields; Heliosphere; 1693; 1504; 826; 824; 711; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics

Radial Evolution of Thermal and Suprathermal Electron Populations in the Slow Solar Wind from 0.13 to 0.5 au: Parker Solar Probe Observations

We develop and apply a bespoke fitting routine to a large volume of solar wind electron distribution data measured by Parker Solar Probe over its first five orbits, covering radial distances from 0.13 to 0.5 au. We characterize the radial evolution of the electron core, halo, and strahl populations in the slow solar wind during these orbits. The fractional densities of these three electron populations provide evidence for the growth of the combined suprathermal halo and strahl populations from 0.13 to 0.17 au. Moreover, the ...

Abraham, Joel; Owen, Christopher; Verscharen, Daniel; Bakrania, Mayur; Stansby, David; Wicks, Robert; Nicolaou, Georgios; Whittlesey, Phyllis; Rueda, Jeffersson; Jeong, Seong-Yeop; Ber\vci\vc, Laura;

Published by: \apj      Published on: jun

YEAR: 2022     DOI: 10.3847/1538-4357/ac6605

Parker Data Used; The Sun; Heliosphere; Plasma physics; Solar wind; 1693; 711; 2089; 1534; Astrophysics - Solar and Stellar Astrophysics; Astrophysics - Earth and Planetary Astrophysics; Physics - Plasma Physics; Physics - Space Physics


The Sunward Electron Deficit: A Telltale Sign of the Sun s Electric Potential

As the Parker Solar Probe explores new regions of the inner heliosphere, it travels ever deeper into the electric potential of the Sun. In the near-Sun environment, a new feature of the electron distribution emerges, in the form of a deficit in the sunward suprathermal population. The lower boundary of this deficit forms a cutoff in phase space, at an energy determined by the electric potential drop between the observation point and the outer heliosphere. We explore the characteristics of the sunward deficit and the associat ...

Halekas, J.~S.; Ber\vci\vc, L.; Whittlesey, P.; Larson, D.~E.; Livi, R.; Berthomier, M.; Kasper, J.~C.; Case, A.~W.; Stevens, M.~L.; Bale, S.~D.; MacDowall, R.~J.; Pulupa, M.~P.;

Published by: \apj      Published on: jul

YEAR: 2021     DOI: 10.3847/1538-4357/ac096e

Parker Data Used; Solar wind; The Sun; 1534; 1693

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


Magnetic Field Dropouts at Near-Sun Switchback Boundaries: A Superposed Epoch Analysis

During Parker Solar Probe\textquoterights first close encounter with the Sun in early 2018 November, a large number of impulsive rotations in the magnetic field were detected within 50 Rs; these also occurred in association with short-lived impulsive solar wind bursts in speed. These impulsive features are now called "switchback" events. We examined a set of these switchbacks where the boundary transition into and out of the switchback was abrupt, with fast B rotations and simultaneous solar wind speed changes ...

Farrell, W.; MacDowall, R.; Gruesbeck, J.; Bale, S.; Kasper, J.;

Published by: The Astrophysical Journal Supplement Series      Published on: 08/2020

YEAR: 2020     DOI: 10.3847/1538-4365/ab9eba

Parker Data Used; parker solar probe; Solar Physics; Solar Probe Plus; Solar wind; The Sun


On the Fast Solar Wind Heating and Acceleration Processes: A Statistical Study Based on the UVCS Survey Data

The UltraViolet Coronagraph Spectrometer (UVCS) on board the SOlar and Heliospheric Observatory has almost continuously observed, throughout the whole solar cycle 23, the UV solar corona. This work addresses the first-ever statistical analysis of the daily UVCS observations, performed in the O VI channel, of the northern polar coronal hole, between 1.5 and 3 R , during the period of low solar activity from 1996 April to 1997 December. The study is based on the investigation, at different heights, of the corr ...

Telloni, Daniele; Giordano, Silvio; Antonucci, Ester;

Published by: The Astrophysical Journal      Published on: 08/2019

YEAR: 2019     DOI: 10.3847/2041-8213/ab3731

parker solar probe; Solar corona; Solar coronal heating; Solar Probe Plus; Solar wind; The Sun