PSP Bibliography


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Found 8 entries in the Bibliography.

Showing entries from 1 through 8


Evolving solar wind flow properties of magnetic inversions observed by Helios

Macneil, Allan; Owens, Mathew; Wicks, Robert; Lockwood, Mike;

Published by: \mnras      Published on: 03/2021

YEAR: 2021     DOI: 10.1093/mnras/staa3983

Sun: heliosphere; Sun: magnetic fields; Solar wind; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics


Parker Solar Probe observations of suprathermal electron flux enhancements originating from Coronal Hole boundaries

Reconnection between pairs of solar magnetic flux elements, one open and the other a closed loop, is theorized to be a crucial process for both maintaining the structure of the corona and producing the solar wind. This interchange reconnection is expected to be particularly active at the open-closed boundaries of coronal holes (CHs). Previous analysis of solar wind data at 1 au indicated that peaks in the flux of suprathermal electrons at slow-fast stream interfaces may arise from magnetic connection to the CH boundary, ra ...

Macneil, Allan; Owens, Mathew; Bercic, Laura; Finley, Adam;

Published by: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY      Published on: 11/2020

YEAR: 2020     DOI: 10.1093/mnras/staa2660

Parker Data Used

The Solar Wind Angular Momentum Flux as Observed by Parker Solar Probe

he long-term evolution of the Sun\textquoterights rotation period cannot be directly observed, and is instead inferred from trends in the measured rotation periods of other Sun-like stars. Assuming the Sun spins down as it ages, following rotation rate proportional to age(-1/2), requires the current\ solar\ angular momentum (AM) loss rate to be around 6 x 10(30)erg. Magnetohydrodynamic models, and previous observations of the\ solar\ wind (from the Helios and Wind spacecraft), generally predict a value ...

Finley, Adam; Matt, Sean; eville, Victor; Pinto, Rui; Owens, Mathew; Kasper, Justin; Korreck, Kelly; Case, A.; Stevens, Michael; Whittlesey, Phyllis; Larson, Davin; Livi, Roberto;

Published by: The Astrophysical Journal      Published on: 10/2020

YEAR: 2020     DOI: 10.3847/2041-8213/abb9a5

Parker Data Used; parker solar probe; Solar evolution; Solar Physics; Solar Probe Plus; Solar rotation; Solar wind; Stellar evolution; Stellar physics; Stellar rotation

The evolution of inverted magnetic fields through the inner heliosphereABSTRACT

Local inversions are often observed in the heliospheric magnetic field (HMF), but their origins and evolution are not yet fully understood. Parker Solar Probe has recently observed rapid, Alfv\ enic, HMF inversions in the inner heliosphere, known as \textquoterightswitchbacks\textquoteright, which have been interpreted as the possible remnants of coronal jets. It has also been suggested that inverted HMF may be produced by near-Sun interchange reconnection; a key process in mechanisms proposed for slow solar wind release. ...

Macneil, Allan; Owens, Mathew; Wicks, Robert; Lockwood, Mike; Bentley, Sarah; Lang, Matthew;

Published by: Monthly Notices of the Royal Astronomical Society      Published on: 04/2020

YEAR: 2020     DOI: 10.1093/mnras/staa951

Astrophysics - Solar and Stellar Astrophysics; magnetic fields; parker solar probe; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; Sun: heliosphere


Towards Construction of a Solar Wind Reanalysis Dataset: Application to the First Perihelion Pass of Parker Solar Probe

Accurate reconstruction of global solar-wind structure is essential for connecting remote and in situ observations of solar plasma, and hence understanding formation and release of solar wind. Information can routinely be obtained from photospheric magnetograms, via coronal and solar-wind modelling, and directly from in situ observations, typically at large heliocentric distances (most commonly near 1 AU). Magnetogram-constrained modelling has the benefit of reconstructing global solar-wind structure, but with relatively lar ...

Owens, Mathew; Lang, Matthew; Riley, Pete; Stansby, David;

Published by: SOLAR PHYSICS      Published on: 06/2019

YEAR: 2019     DOI: 10.1007/s11207-019-1479-6

Parker Data Used

On the Origin of Ortho-Gardenhose Heliospheric Flux

Parker-spiral theory predicts that the heliospheric magnetic field (HMF) will have components of opposite polarity radially toward the Sun and tangentially antiparallel to the solar rotation direction (i.e., in Geocentric Solar Ecliptic (GSE) coordinates, with BX/BY<0). This theory explains the average orientation of the HMF very well indeed but does not predict the so-called ortho-gardenhose (hereafter OGH) flux with which is frequently observed. We here study the occurrence and structure of OGH flux, as seen in near-Earth ...

Lockwood, Mike; Owens, Mathew; Macneil, Allan;

Published by: SOLAR PHYSICS      Published on: 06/2019

YEAR: 2019     DOI: 10.1007/s11207-019-1478-7

Parker Data Used


Generation of Inverted Heliospheric Magnetic Flux by Coronal Loop Opening and Slow Solar Wind Release

In situ spacecraft observations provide much-needed constraints on theories of solar wind formation and release, particularly the highly variable slow solar wind, which dominates near-Earth space. Previous studies have shown an association between local inversions in the heliospheric magnetic field (HMF) and solar wind released from the vicinity of magnetically closed coronal structures. We here show that in situ properties of inverted HMF are consistent with the same hot coronal source regions as the slow solar wind. We ...

Owens, Mathew; Lockwood, Mike; Barnard, Luke; Macneil, Allan;

Published by: The Astrophysical Journal      Published on: 11/2018

YEAR: 2018     DOI: 10.3847/2041-8213/aaee82

parker solar probe; Solar Probe Plus; Solar wind; Sun: activity; Sun: corona; Sun: magnetic fields


Statistical study of magnetic cloud erosion by magnetic reconnection

recent studies suggest that magnetic reconnection is able to erode substantial amounts of the outer magnetic flux of interplanetary magnetic clouds (MCs) as they propagate in the heliosphere. We quantify and provide a broader context to this process, starting from 263 tabulated interplanetary coronal mass ejections, including MCs, observed over a time period covering 17 years and at a distance of 1 AU from the Sun with Wind (1995-2008) and the two STEREO (2009-2012) spacecraft. Based on several quality factors, including ...

Ruffenach, A.; Lavraud, B.; Farrugia, C.; emoulin, P.; Dasso, S.; Owens, M.; Sauvaud, J.-A.; Rouillard, A.; Lynnyk, A.; Foullon, C.; Savani, N.; Luhmann, J.; Galvin, A.;

Published by: Journal of Geophysical Research: Space Physics      Published on: 01/2015

YEAR: 2015     DOI: 10.1002/2014JA020628

coronal mass ejection; magnetic cloud; magnetic flux rope; magnetic reconnection; parker solar probe; Solar Probe Plus; Solar wind