NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Electron-Scale Measurements of Magnetic Reconnection in SpaceMagnetic reconnection is a fundamental physical process in plasmas whereby stored magnetic energy is converted into heat and kinetic energy of charged particles. Reconnection occurs in many astrophysical plasma environments and in laboratory plasmas. Using measurements with very high time resolution, NASA's Magnetospheric Multiscale (MMS) mission has found direct evidence for electron demagnetization and acceleration at sites along the sunward boundary of Earth's magnetosphere where the interplanetary magnetic field reconnects with the terrestrial magnetic field. We have (i) observed the conversion of magnetic energy to particle energy; (ii) measured the electric field and current, which together cause the dissipation of magnetic energy; and (iii) identified the electron population that carries the current as a result of demagnetization and acceleration within the reconnection diffusion/dissipation region.
Document ID
20170002560
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Burch, J. L. (Southwest Research Inst. San Antonio, TX, United States)
Torbert, R. B. (New Hampshire Univ. Durham, NH, United States)
Phan, T. D. (California Univ. Berkeley, CA, United States)
Chen, L.-J. (Maryland Univ. College Park, MD, United States)
Moore, T. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Ergun, R. E. (Colorado Univ. Boulder, CO, United States)
Eastwood, J. P. (Imperial Coll. of London London, United Kingdom)
Gershman, D. J. (Maryland Univ. College Park, MD, United States)
Cassak, P. A. (West Virginia Univ. Morgantown, WV, United States)
Argall, M. R. (New Hampshire Univ. Durham, NH, United States)
Wang, S. (Maryland Univ. College Park, MD, United States)
Hesse, M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Pollock, C. J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Jiles, B. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Nakamura, R. (Oesterreichische Akademie der Wissenschaften Innsbruck, Austria)
Mauk, B. H. (Johns Hopkins Univ. Laurel, MD, United States)
Fuselier, S. A. (Southwest Research Inst. San Antonio, TX, United States)
Russell, C. T. (California Univ. Los Angeles, CA, United States)
Strangeway, R. J. (California Univ. Los Angeles, CA, United States)
Drake, J. F. (Maryland Univ. College Park, MD, United States)
Shay, M. A. (Delaware Univ. Newark, DE, United States)
Khotyaintsev, Yu. V. (Swedish Inst. of Space Physics Uppsala, Sweden)
Lindqvist, P.-A. (Royal Inst. of Tech. Stockholm, Sweden)
Marklund, G. (Royal Inst. of Tech. Stockholm, Sweden)
Wilder, F. D. (Colorado Univ. Boulder, CO, United States)
Date Acquired
March 27, 2017
Publication Date
May 12, 2016
Publication Information
Publication: Science
Volume: 352
Issue: 6290
ISSN: 0036-8075
Subject Category
Energy Production and Conversion
Report/Patent Number
GSFC-E-DAA-TN40635
Funding Number(s)
CONTRACT_GRANT: NNG11PL02A
CONTRACT_GRANT: NNG04EB99C
Distribution Limits
Public
Copyright
Other