geounit 1.0.1

Geometric units conversions made easy

geounit

geounit makes conversion of geometric units (G=c=1) easy and hassle-free. Geometric units are commonplace in numerical relativity and gravitational wave astrophysics.

At its core, geounit uses wonderful astropy.units package and operates with quantities with units.

Installation

pip install geounit

Currently implemented quantities:

• Mass
• Length
• Time
• Energy
• Luminosity
• Density
• Pressure
• Frequency

Examples

For the total mass of M = 5Msun, calculate how much 12M is in ms:

>>> import geounit
>>> M = 5
>>> gu = geounit.GU(M)
>>> 12 * gu.Time.to("ms")
<Quantity 0.29552946 ms>
>>> 12 * gu.Time.to("ms").value
np.float64(0.29552945685847604)

In units of one solar mass, there is a convinience variable:

>>> from geounit import one as gu
>>> gu.Frequency.to("kHz")
<Quantity 203.02544673 kHz>

One can operate with fundamental mass-length-time (MLT) units:

>>> import geounit
>>> energy = geounit.one.MLT(1, 2, -2) # mc**2
>>> energy.to("erg")
<Quantity 1.78709367e+54 erg>