Radio astronomers detect electromagnetic radiation at 44.0 MHz from an interstellar gas cloud. They suspect this radiation is emitted by electrons spiraling in a magnetic field.
What is the magnetic field strength inside the gas cloud?What is the magnetic field strength inside the gas cloud?
It varies a lot, since the thermodynamic conditions inside clouds vary. Generally the magnetic field pressure is in approximate equipartition with other pressures.
Generally around 3 to 10 microgauss would be typical.
I think what they may be asking here is: what magnetic field strength results in a synchrotron frequency of 44 MHz. But there's not enough information --- you'd need to know the electron energy perpendicular to the field lines as well.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment