In this video I discuss a data mining project where I have been mining through x-ray timing data to find measurements of different pulsars' spin frequencies to catalog the evolution of there rotational dynamics.
Access the preliminary results here:
https://pulsars.kuechel-astrophysics.com/
Data and Heasoft Software comes from the HEASARC:
https://heasarc.gsfc.nasa.gov/
This work would not be possible without the efforts and operations of HEASARC, the NICER and XTE missions, and the HEASoft Software.
A great paper on the topic of finding evidence of oscillations by Tod E. Strohmayer and Craig B. Markwardt:
https://iopscience.iop.org/article/10.1086/342152/pdf