[6][7] Like other quasars, PKS 0637-752 is considered luminous, powering up 10 trillion times the sun, with a supermassive black hole in its center.

[8][9] PKS 0637-752 contains a high γ-ray flux[10] X-ray jet[11][12] studied by Hubble Space Telescope[13] and Spitzer.

[15] Further observations from Hubble also found three small knots occurring concurrently with the X-ray emission and peak radio.

[2] According to observations made by Australia Telescope Compact Array, these knots are shown to be quasi-periodic with a separation gap of ~1.1 arcsecs.

Such evidence, proves the jet structure in the quasar might result from an unstable accretion disk, causing limit cycle behavior.