upper_hybrid_frequency¶

plasmapy.formulary.
upper_hybrid_frequency
(B: Unit("T"), n_e: Unit("1 / m3"), to_hz=False) > Unit("rad / s")¶ Return the upper hybrid frequency.
Aliases:
wuh_
Parameters: Returns: omega_uh – The upper hybrid frequency in radians per second.
Return type: Raises: TypeError
– If either ofB
orn_e
is not a Quantity.UnitConversionError
– If either ofB
orn_e
is in incorrect units.ValueError
– If either ofB
orn_e
contains invalid values or are of incompatible dimensions.
Warns: ~astropy.units.UnitsWarning – If units are not provided, SI units are assumed
Notes
The upper hybrid frequency is given through the relation
\[\omega_{uh}^2 = \omega_{ce}^2 + \omega_{pe}^2\]where \(\omega_{ce}\) is the electron gyrofrequency and \(\omega_{pe}\) is the electron plasma frequency.
Example
>>> from astropy import units as u >>> upper_hybrid_frequency(0.2*u.T, n_e=5e19*u.m**3) <Quantity 4.00459...e+11 rad / s> >>> upper_hybrid_frequency(0.2*u.T, n_e=5e19*u.m**3, to_hz = True) <Quantity 6.37350...e+10 Hz>
Other Parameters: to_hz (bool) – Set True
to to convert function output from angular frequency to Hz