What is meant by Pulsar Star and it’s behaviour is like a Black Hole?
Pulsar star is a star like our sun and its has vast amount of radiation energy produces the Pulsar star.

From a far Pulsar looks like a blinking light, but up close pulsars machine gun their surroundings with deadly radiation they are no place for planets. Yet something interferes with the precision of this Pulsar one explanation is that the anomaly is caused by a planet. But many astronomers are skeptical that planets orbiting a pulsar can exist the reason that’s a problem is because pulsar stars are formed in this incredible explosions.
When a Red giant explodes a Titanic fire ball known as a Supernova unleashes as much energy in one minute as our sun generates in its life time. When a star goes Supernova the shock wave is so immense its hard to imagine any planet surviving that when the cosmic dust clears all that remains is the crushed core of the red giant.
Pulsing in the heart of an expanding debris field. Matter blashed from a colosal explosion falls back to the Pulsar and forms a disk within this chaos a new world arises born of fire and destruction a planetary zombie raised from the carcass of the former red giant star its amazing that planets could form in that environment.
A planet orbiting a pulsar will give you the feeling of being in a disco bar with a very strong light which is the Pulsar. Radiation from this Stellar beast breaks down the organic molecules needed for life. The Pulsar has these strong magnetic fields that being spun around as the star is rotating quickly and its picking up any material electrons, protons and speeding them up and slinging them out at high speed. So its like a solar wind with a vengeance.
We can’t imagine that there would be much of an opportunity for even simple life and microbial life to emerge and flourish on a planet around a pulsar largely because if you in the pulse you had be severely energized and if you ar not in the pulse you would be completely devoid of energy.
The discovery of pulsar planets shows how new world can form in the wake of a stars destruction. No matter where a planet arises the process of its birth is fraught with danger. Sometimes the violence is so great the end of the world comes before the beginning.

In the above photograph the light blue colour dots are the pulsar stars in the space.
The Pulsar star is not a Black hole but its has vast amount of radiation energy like a Neutron star in the life cycle of a star formation. But the Matter Particles are squeezing around the pulsar star that its look like having rings around the pulsar star.
