Search: WFRF:(Shuster D. L.) >
MMS Observations of...
MMS Observations of Reconnection at Dayside Magnetopause Crossings During Transitions of the Solar Wind to Sub-Alfvénic Flow
-
- Farrugia, C. J. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Lugaz, N. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Alm, L. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
-
show more...
-
- Vasquez, B. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Argall, M. R. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Kucharek, H. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Matsui, H. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Torbert, R. B. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Lavraud, B. (author)
- Univ Toulouse, Inst Rech Astrophys, Toulouse, France.,Southwest Res Inst, San Antonio, TX USA.,NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
-
- Le Contel, O. (author)
- UPMC Univ Paris 06, Univ Paris Sud, Lab Phys Plasmas, UMR7648,CNRS,Ecole Polytech,Observ Paris, Paris, France.
-
- Cohen, I. J. (author)
- Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
-
Burch, J. L. (author)
-
- Russell, C. T. (author)
- Univ Calif Los Angeles, Los Angeles, CA USA.
-
- Strangeway, R. J. (author)
- Univ Calif Los Angeles, Los Angeles, CA USA.
-
- Shuster, J. (author)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
-
- Dorelli, J. C. (author)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
-
- Eastwood, J. P. (author)
- Imperial Coll London, Blackett Lab, London, England.
-
- Ergun, R. E. (author)
- Univ Colorado Boulder, Lab Atmospher & Space Phys, Boulder, CO USA.
-
- Fuselier, S. A. (author)
- Southwest Res Inst, San Antonio, TX USA.;Univ Texas San Antonio, Dept Phys, San Antonio, TX USA.
-
- Gershman, D. J. (author)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
-
Giles, B. L. (author)
-
- Khotyaintsev, Yuri V. (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
-
Lindqvist, Per-Arne (author)
-
- Marklund, Göran (author)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
-
- Paulson, K. W. (author)
- Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
-
- Petrinec, S. M. (author)
- Lockheed Martin Adv Technol Ctr, Palo Alto, CA USA.
-
- Phan, T. D. (author)
- Space Sci Lab, Berkeley, CA USA.
-
- Pollock, C. J. (author)
- NASA, Goddard Space Flight Ctr, Greenbelt, MD USA.
-
show less...
-
Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA Institutet för rymdfysik, Uppsalaavdelningen (creator_code:org_t)
- Blackwell Publishing Ltd, 2017
- 2017
- English.
-
In: Journal of Geophysical Research - Space Physics. - : Blackwell Publishing Ltd. - 2169-9380 .- 2169-9402. ; 122:10, s. 9934-9951
- Related links:
-
https://urn.kb.se/re...
-
show more...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- We present MMS observations during two dayside magnetopause crossings under hitherto unexamined conditions: (i) when the bow shock is weakening and the solar wind transitioning to sub-Alfvénic flow and (ii) when it is reforming. Interplanetary conditions consist of a magnetic cloud with (i) a strong B (∼20 nT) pointing south and (ii) a density profile with episodic decreases to values of ∼0.3 cm−3 followed by moderate recovery. During the crossings the magnetosheath magnetic field is stronger than the magnetosphere field by a factor of ∼2.2. As a result, during the outbound crossing through the ion diffusion region, MMS observed an inversion of the relative positions of the X and stagnation (S) lines from that typically the case: the S line was closer to the magnetosheath side. The S line appears in the form of a slow expansion fan near which most of the energy dissipation is taking place. While in the magnetosphere between the crossings, MMS observed strong field and flow perturbations, which we argue to be due to kinetic Alfvén waves. During the reconnection interval, whistler mode waves generated by an electron temperature anisotropy (Te⊥>Te∥) were observed. Another aim of the paper is to distinguish bow shock-induced field and flow perturbations from reconnection-related signatures. The high-resolution MMS data together with 2-D hybrid simulations of bow shock dynamics helped us to distinguish between the two sources. We show examples of bow shock-related effects (such as heating) and reconnection effects such as accelerated flows satisfying the Walén relation.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- magnetic reconnection under extreme conditions
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Farrugia, C. J.
-
Lugaz, N.
-
Alm, L.
-
Vasquez, B.
-
Argall, M. R.
-
Kucharek, H.
-
show more...
-
Matsui, H.
-
Torbert, R. B.
-
Lavraud, B.
-
Le Contel, O.
-
Cohen, I. J.
-
Burch, J. L.
-
Russell, C. T.
-
Strangeway, R. J ...
-
Shuster, J.
-
Dorelli, J. C.
-
Eastwood, J. P.
-
Ergun, R. E.
-
Fuselier, S. A.
-
Gershman, D. J.
-
Giles, B. L.
-
Khotyaintsev, Yu ...
-
Lindqvist, Per-A ...
-
Marklund, Göran
-
Paulson, K. W.
-
Petrinec, S. M.
-
Phan, T. D.
-
Pollock, C. J.
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Fusion Plasma an ...
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Earth and Relate ...
-
and Geophysics
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Astronomy Astrop ...
- Articles in the publication
-
Journal of Geoph ...
- By the university
-
Royal Institute of Technology
-
Uppsala University