| Issue |
A&A
Volume 586, February 2016
|
|
|---|---|---|
| Article Number | A18 | |
| Number of page(s) | 2 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361/201527949 | |
| Published online | 20 January 2016 | |
Research Note
Bernoulli equation and the nonexistence of maximal jets
Centrum Astronomiczne im. M. Kopernika, Bartycka 18, 00-716 Warszawa, Poland
e-mail: aaz@camk.edu.pl
Received: 12 December 2015
Accepted: 28 December 2015
We discuss the idea of maximal jets introduced by Falcke & Biermann (1995, A&A, 293, 665). According to it, the maximum possible jet power in its internal energy equals the kinetic power in its rest mass. We show this result is incorrect because of an unfortunate algebraic mistake.
Key words: acceleration of particles / galaxies: jets / ISM: jets and outflows / magnetic fields / radiation mechanisms: non-thermal
© ESO, 2016
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