title: Rippled Quasiperpendicular Shock Observed by the Magnetospheric Multiscale Spacecraft.
abstract: Collisionless shock nonstationarity arising from microscale physics influences shock structure and particle acceleration mechanisms. Nonstationarity has been difficult to quantify due to the small spatial and temporal scales. We use the closely spaced (subgyroscale), high-time-resolution measurements from one rapid crossing of Earth's quasiperpendicular bow shock by the Magnetospheric Multiscale (MMS) spacecraft to compare competing nonstationarity processes. Using MMS's high-cadence kinetic plasma measurements, we show that the shock exhibits nonstationarity in the form of ripples.
authors: Swedish Institute of Space Physics, Uppsala 75121, Sweden.|Department of Physics and Astronomy, Uppsala University, Uppsala 75120, Sweden.
authors: A
authors: A
authors: Johlander
authors: Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.|Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA.
authors: S J
authors: SJ
authors: Schwartz
authors: Swedish Institute of Space Physics, Uppsala 75121, Sweden.
authors: A
authors: A
authors: Vaivads
authors: Swedish Institute of Space Physics, Uppsala 75121, Sweden.
authors: Yu V
authors: YV
authors: Khotyaintsev
authors: Blackett Laboratory, Imperial College London, London SW7 2AZ, United Kingdom.
authors: I
authors: I
authors: Gingell
authors: KTH Royal Institute of Technology, Stockholm 11428, Sweden.
authors: I B
authors: IB
authors: Peng
authors: KTH Royal Institute of Technology, Stockholm 11428, Sweden.
authors: S
authors: S
authors: Markidis
authors: KTH Royal Institute of Technology, Stockholm 11428, Sweden.
authors: P-A
authors: PA
authors: Lindqvist
authors: Laboratory of Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80303, USA.
authors: R E
authors: RE
authors: Ergun
authors: KTH Royal Institute of Technology, Stockholm 11428, Sweden.
authors: G T
authors: GT
authors: Marklund
authors: Space Research Institute, Austrian Academy of Sciences, Graz 8042, Austria.
authors: F
authors: F
authors: Plaschke
authors: Space Research Institute, Austrian Academy of Sciences, Graz 8042, Austria.
authors: W
authors: W
authors: Magnes
authors: University of California, Los Angeles, California 90095, USA.
authors: R J
authors: RJ
authors: Strangeway
authors: University of California, Los Angeles, California 90095, USA.
authors: C T
authors: CT
authors: Russell
authors: University of California, Los Angeles, California 90095, USA.
authors: H
authors: H
authors: Wei
authors: University of New Hampshire, Durham, New Hampshire 03824, USA.
authors: R B
authors: RB
authors: Torbert
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
authors: W R
authors: WR
authors: Paterson
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.|University of Maryland, College Park, Maryland 20742, USA.
authors: D J
authors: DJ
authors: Gershman
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
authors: J C
authors: JC
authors: Dorelli
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
authors: L A
authors: LA
authors: Avanov
authors: Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse, Toulouse 31028, France.|Centre National de la Recherche Scientifique, UMR 5277, Toulouse 31400, France.
authors: B
authors: B
authors: Lavraud
authors: Institute of Space and Astronautical Science, JAXA, Sagamihara 2525210, Japan.
authors: Y
authors: Y
authors: Saito
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
authors: B L
authors: BL
authors: Giles
authors: NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
authors: C J
authors: CJ
authors: Pollock
authors: Southwest Research Institute, San Antonio, Texas 78238, USA.
authors: J L
authors: JL
authors: Burch