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P2DFFT: Parallelized technique for measuring galactic spiral arm pitch angles

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Ada Coda
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P2DFFT: Parallelized technique for measuring galactic spiral arm pitch angles

Postby Ada Coda » Tue Jun 12, 2018 9:50 pm

P2DFFT: Parallelized technique for measuring galactic spiral arm pitch angles

Abstract: P2DFFT is a parallelized version of 2DFFT (ascl:1608.015). It isolates and measures the spiral arm pitch angle of galaxies. The code allows direct input of FITS images, offers the option to output inverse Fourier transform FITS images, and generates idealized logarithmic spiral test images of a specified size that have 1 to 6 arms with pitch angles of -75 degrees to 75 degrees​​. Further, it can output Fourier amplitude versus inner radius and pitch angle versus inner radius for each Fourier component (m = 0 to m = 6), and calculates the Fourier amplitude weighted mean pitch angle across m = 1 to m = 6 versus inner radius.

Credit: Seigar, Marc S., Mutlu-Pakdil, B., Hewitt, Ian B., Treuthardt, Patrick

Site: https://treuthardt.github.io/P2DFFT/
http://adsabs.harvard.edu/abs/2018MNRAS.474.2594M

Bibcode: 2018ascl.soft06011S

Preferred citation method: http://adsabs.harvard.edu/abs/2018MNRAS.474.2594M

ID: ascl:1806.011
Last edited by Ada Coda on Tue Jun 12, 2018 9:52 pm, edited 1 time in total.
Reason: Updated code entry.

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