@article{Sioulas:2023:2041-8213/acaeff,
author = {Sioulas, N and Huang, Z and Shi, C and Velli, M and Tenerani, A and Bowen, TA and Bale, SD and Huang, J and Vlahos, L and Woodham, LD and Horbury, TS and de, Wit TD and Larson, D and Kasper, J and Owen, CJ and Stevens, ML and Case, A and Pulupa, M and Malaspina, DM and Bonnell, JW and Livi, R and Goetz, K and Harvey, PR and MacDowall, RJ and Maksimovic, M and Louarn, P and Fedorov, A},
doi = {2041-8213/acaeff},
journal = {Letters of the Astrophysical Journal},
pages = {1--7},
title = {Magnetic field spectral evolution in the inner heliosphere},
url = {http://dx.doi.org/10.3847/2041-8213/acaeff},
volume = {943},
year = {2023}
}

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TY  - JOUR
AB  - Parker Solar Probe and Solar Orbiter data are used to investigate the radial evolution of magnetic turbulence between 0.06  R  1 au. The spectrum is studied as a function of scale, normalized to the ion inertial scale di. In the vicinity of the Sun, the inertial range is limited to a narrow range of scales and exhibits a power-law exponent of, αB = −3/2, independent of plasma parameters. The inertial range grows with distance, progressively extending to larger spatial scales, while steepening toward a αB = −5/3 scaling. It is observed that spectra for intervals with large magnetic energy excesses and low Alfvénic content steepen significantly with distance, in contrast to highly Alfvénic intervals that retain their near-Sun scaling. The occurrence of steeper spectra in slower wind streams may be attributed to the observed positive correlation between solar wind speed and Alfvénicity.
AU  - Sioulas,N
AU  - Huang,Z
AU  - Shi,C
AU  - Velli,M
AU  - Tenerani,A
AU  - Bowen,TA
AU  - Bale,SD
AU  - Huang,J
AU  - Vlahos,L
AU  - Woodham,LD
AU  - Horbury,TS
AU  - de,Wit TD
AU  - Larson,D
AU  - Kasper,J
AU  - Owen,CJ
AU  - Stevens,ML
AU  - Case,A
AU  - Pulupa,M
AU  - Malaspina,DM
AU  - Bonnell,JW
AU  - Livi,R
AU  - Goetz,K
AU  - Harvey,PR
AU  - MacDowall,RJ
AU  - Maksimovic,M
AU  - Louarn,P
AU  - Fedorov,A
DO  - 2041-8213/acaeff
EP  - 7
PY  - 2023///
SN  - 2041-8205
SP  - 1
TI  - Magnetic field spectral evolution in the inner heliosphere
T2  - Letters of the Astrophysical Journal
UR  - http://dx.doi.org/10.3847/2041-8213/acaeff
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000919864700001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://iopscience.iop.org/article/10.3847/2041-8213/acaeff
UR  - http://hdl.handle.net/10044/1/102083
VL  - 943
ER  - 

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