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Record Details

Record 9 of 36580
Magnetically driven relativistic jets and winds: Exact solutions
External Online Source: doi:10.1086/174590
Author and Affiliation:
Contopoulos, J.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: We present self-consistent solutions of the full set of ideal MHD equations which describe steady-state relativistic cold outflows from thin accretion disks. The magnetic field forms a spiral which is anchored in the disk, rotates with it, and accelerates the flow out of the disk plane. The collimation at large distances depends on the total amount of electric current that flows along the jet. We considered various distributions of electric current and derived the result that in straight jets which extend to infinite distances, a strong electric current flows along their axis of symmetry. The asymptotic flow velocities are of the order of the initial rotational velocity at the base of the flow (a few tenths of the speed of light). The solutions are applied to both galactic (small-scale) and extragalactic (large-scale) jets.
Publication Date: Sep 10, 1994
Document ID:
19950039607
(Acquired Dec 28, 1995)
Accession Number: 95A71206
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 432; 2; p. 508-517
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 10p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ACCRETION DISKS; ELECTRIC CURRENT; MAGNETIC FIELDS; MAGNETOHYDRODYNAMIC FLOW; PLASMA JETS; RELATIVISTIC PLASMAS; BLACK HOLES (ASTRONOMY); MAGNETOHYDRODYNAMICS; RELATIVISTIC VELOCITY; STELLAR MASS EJECTION
Imprint And Other Notes: Astrophysical Journal, Part 1 vol. 432, no. 2 p. 508-517 September 10, 1994
Availability Source: Other Sources
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