Astronomy & Astrophysics (A&A)

C. H. K. Chen, B. D. G. Chandran, L. D. Woodham, S. I. Jones, J. C. Perez, S. Bourouaine, T. A. Bowen, K. G. Klein, M. Moncuquet, J. C. Kasper and S. D. Bale

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039872

Free Access

Energetic particle behavior in near-Sun magnetic field switchbacks from PSP

R. Bandyopadhyay, W. H. Matthaeus, D. J. McComas, C. J. Joyce, J. R. Szalay, E. R. Christian, J. Giacalone, N. A. Schwadron, D. G. Mitchell, M. E. Hill et al. (12 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039800

Free Access

Time evolution of stream interaction region energetic particle spectra in the inner heliosphere

C. J. Joyce, D. J. McComas, N. A. Schwadron, E. R. Christian, M. E. Wiedenbeck, R. L. McNutt, C. M. S. Cohen, R. A. Leske, R. A. Mewaldt, E. C. Stone et al. (14 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039330

Free Access

Statistical analysis of orientation, shape, and size of solar wind switchbacks

R. Laker, T. S. Horbury, S. D. Bale, L. Matteini, T. Woolley, L. D. Woodham, S. T. Badman, M. Pulupa, J. C. Kasper, M. Stevens et al. (2 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039354

Free Access

Switchbacks as signatures of magnetic flux ropes generated by interchange reconnection in the corona

J. F. Drake, O. Agapitov, M. Swisdak, S. T. Badman, S. D. Bale, T. S. Horbury, J. C. Kasper, R. J. MacDowall, F. S. Mozer, T. D. Phan et al. (3 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039432

Open Access

Switchbacks: statistical properties and deviations from Alfvénicity

A. Larosa, V. Krasnoselskikh, T. Dudok de Wit, O. Agapitov, C. Froment, V. K. Jagarlamudi, M. Velli, S. D. Bale, A. W. Case, K. Goetz et al. (9 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039442

Open Access

Discontinuity analysis of the leading switchback transition regions

M. Akhavan-Tafti, J. Kasper, J. Huang and S. Bale

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039508

Open Access

Direct evidence for magnetic reconnection at the boundaries of magnetic switchbacks with Parker Solar Probe

C. Froment, V. Krasnoselskikh, T. Dudok de Wit, O. Agapitov, N. Fargette, B. Lavraud, A. Larosa, M. Kretzschmar, V. K. Jagarlamudi, M. Velli et al. (13 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039806

Open Access

Periodicities in an active region correlated with Type III radio bursts observed by Parker Solar Probe

Cynthia Cattell, Lindsay Glesener, Benjamin Leiran, John Dombeck, Keith Goetz, Juan Carlos Martínez Oliveros, Samuel T. Badman, Marc Pulupa and Stuart D. Bale

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039510

Free Access

The active region source of a type III radio storm observed by Parker Solar Probe during encounter 2

L. Harra, D. H. Brooks, S. D. Bale, C. H. Mandrini, K. Barczynski, R. Sharma, S. T. Badman, S. Vargas Domínguez and M. Pulupa

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039514

Open Access

Narrowband oblique whistler-mode waves: comparing properties observed by Parker Solar Probe at <0.3 AU and STEREO at 1 AU

C. Cattell, B. Short, A. Breneman, J. Halekas, P. Whittesley, D. Larson, J. C. Kasper, M. Stevens, T. Case, M. Moncuquet et al. (10 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039550

Open Access

Whistler wave occurrence and the interaction with strahl electrons during the first encounter of Parker Solar Probe

V. K. Jagarlamudi, T. Dudok de Wit, C. Froment, V. Krasnoselskikh, A. Larosa, L. Bercic, O. Agapitov, J. S. Halekas, M. Kretzschmar, D. Malaspina et al. (9 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039808

Open Access

Wave-particle energy transfer directly observed in an ion cyclotron wave

D. Vech, M. M. Martinović, K. G. Klein, D. M. Malaspina, T. A. Bowen, J. L. Verniero, K. Paulson, T. Dudok de Wit, J. C. Kasper, J. Huang et al. (14 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039296

Open Access

Magnetic increases with central current sheets: observations with Parker Solar Probe

N. Fargette, B. Lavraud, A. Rouillard, J. P. Eastwood, S. D. Bale, T. Phan, M. Øieroset, J. S. Halekas, J. Kasper, M. Berthomier et al. (13 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039191

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Detection of small magnetic flux ropes from the third and fourth Parker Solar Probe encounters

L.-L. Zhao, G. P. Zank, Q. Hu, D. Telloni, Y. Chen, L. Adhikari, M. Nakanotani, J. C. Kasper, J. Huang, S. D. Bale et al. (15 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039298

Open Access

Prevalence of magnetic reconnection in the near-Sun heliospheric current sheet

T. D. Phan, B. Lavraud, J. S. Halekas, M. Øieroset, J. F. Drake, J. P. Eastwood, M. A. Shay, P. S. Pyakurel, S. D. Bale, D. Larson et al. (19 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039863

Open Access

Solar wind energy flux observations in the inner heliosphere: first results from Parker Solar Probe

M. Liu, K. Issautier, N. Meyer-Vernet, M. Moncuquet, M. Maksimovic, J. S. Halekas, J. Huang, L. Griton, S. Bale, J. W. Bonnell et al. (8 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039615

Free Access

Electron heat flux in the near-Sun environment

J. S. Halekas, P. L. Whittlesey, D. E. Larson, D. McGinnis, S. D. Bale, M. Berthomier, A. W. Case, B. D. G. Chandran, J. C. Kasper, K. G. Klein et al. (8 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039256

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Modeling proton and electron heating in the fast solar wind

L. Adhikari, G. P. Zank, L.-L. Zhao, M. Nakanotani and S. Tasnim

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039297

Free Access

The contribution of alpha particles to the solar wind angular momentum flux in the inner heliosphere

A. J. Finley, M. D. McManus, S. P. Matt, J. C. Kasper, K. E. Korreck, A. W. Case, M. L. Stevens, P. Whittlesey, D. Larson, R. Livi et al. (7 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039288

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Measurement of the open magnetic flux in the inner heliosphere down to 0.13 AU

Samuel T. Badman, Stuart D. Bale, Alexis P. Rouillard, Trevor A. Bowen, John W. Bonnell, Keith Goetz, Peter R. Harvey, Robert J. MacDowall, David M. Malaspina and Marc Pulupa

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039407

Open Access

Using Parker Solar Probe observations during the first four perihelia to constrain global magnetohydrodynamic models

Pete Riley, Roberto Lionello, Ronald M. Caplan, Cooper Downs, Jon A. Linker, Samuel T. Badman and Michael L. Stevens

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039815

Free Access

Identification of coherent structures in space plasmas: the magnetic helicity–PVI method

F. Pecora, S. Servidio, A. Greco and W. H. Matthaeus

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039639

Free Access

Alfvénic versus non-Alfvénic turbulence in the inner heliosphere as observed by Parker Solar Probe

C. Shi, M. Velli, O. Panasenco, A. Tenerani, V. Réville, S. D. Bale, J. Kasper, K. Korreck, J. W. Bonnell, T. Dudok de Wit et al. (13 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039818

Open Access

Applicability of Taylor’s hypothesis during Parker Solar Probe perihelia

Jean C. Perez, Sofiane Bourouaine, Christopher H. K. Chen and Nour E. Raouafi

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039879

Free Access

Parker Solar Probe observations of He/H abundance variations in SEP events inside 0.5 au

C. M. S. Cohen, E. R. Christian, A. C. Cummings, A. J. Davis, M. I. Desai, G. A. de Nolfo, J. Giacalone, M. E. Hill, C. J. Joyce, A. W. Labrador et al. (17 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039299

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A new view of energetic particles from stream interaction regions observed by Parker Solar Probe

N. A. Schwadron, C. J. Joyce, A. Aly, C. M. S. Cohen, M. I. Desai, D. J. McComas, J. T. Niehof, E. Möbius, M. Lee, J. Bower et al. (23 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039352

Open Access

A living catalog of stream interaction regions in the Parker Solar Probe era

R. C. Allen, G. C. Ho, L. K. Jian, S. K. Vines, S. D. Bale, A. W. Case, M. E. Hill, C. J. Joyce, J. C. Kasper, K. E. Korreck et al. (8 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039833

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Magnetic field line random walk and solar energetic particle path lengths - Stochastic theory and PSP/IS⊙IS observations

R. Chhiber, W. H. Matthaeus, C. M. S. Cohen, D. Ruffolo, W. Sonsrettee, P. Tooprakai, A. Seripienlert, P. Chuychai, A. V. Usmanov, M. L. Goldstein et al. (16 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039816

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Thin silicon solid-state detectors for energetic particle measurements - Development, characterization, and application on NASA’s Parker Solar Probe mission

M. E. Wiedenbeck, J. A. Burnham, C. M. S. Cohen, W. R. Cook, R. M. Crabill, A. C. Cummings, A. J. Davis, B. Kecman, A. W. Labrador, R. A. Leske et al. (28 more)

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039754

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PSP/WISPR observations of dust density depletion near the Sun - I. Remote observations to 8 R_⊙ from an observer between 0.13 and 0.35 AU

G. Stenborg, R. A. Howard, P. Hess and B. Gallagher

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039284

Open Access

Dust observations from Parker Solar Probe: dust ejection from the inner Solar System

I. Mann and A. Czechowski

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039362

Free Access

Tracking solar wind flows from rapidly varying viewpoints by the Wide-field Imager for Parker Solar Probe

A. Nindos, S. Patsourakos, A. Vourlidas, P. C. Liewer, P. Penteado and J. R. Hall

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039414

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Coronal mass ejections observed by heliospheric imagers at 0.2 and 1 au - The events on April 1 and 2, 2019

Carlos R. Braga and Angelos Vourlidas

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039490

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Evolution of a streamer-blowout CME as observed by imagers on Parker Solar Probe and the Solar Terrestrial Relations Observatory

P. C. Liewer, J. Qiu, A. Vourlidas, J. R. Hall and P. Penteado

Published online: 02 June 2021

DOI: https://doi.org/10.1051/0004-6361/202039641

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A powerful machine learning technique to extract proton core, beam, and α-particle parameters from velocity distribution functions in space plasmas

D. Vech, M. L. Stevens, K. W. Paulson, D. M. Malaspina, A. W. Case, K. G. Klein and J. C. Kasper

Published online: 30 June 2021

DOI: https://doi.org/10.1051/0004-6361/202141063

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Energetic particle evolution during coronal mass ejection passage from 0.3 to 1 AU

C. J. Joyce, D. J. McComas, N. A. Schwadron, A. Vourlidas, E. R. Christian, R. L. McNutt, C. M. S. Cohen, R. A. Leske, R. A. Mewaldt, E. C. Stone et al. (14 more)

Published online: 01 July 2021

DOI: https://doi.org/10.1051/0004-6361/202039933