Thursday, December 7, 2023

Unveiling New Gamma-Ray Pulsars: Research Reveals

2:30 PM | , ,

An artist's impression of a bright yellow-orange star ejecting material towards a black hole with a disk and emitting a narrow, vertical purple beam.
 At our team is dedicated to bringing the wonders of the universe to you. We are excited to share with you the breakthrough in astrophysical research led by a group of international astronomers. They have made a discovery; an astounding number of pulsars that emit gamma rays.

Unveiling the Secrets of the Universe; A Remarkable Finding

A team of astronomers from countries, headed by France has utilized NASAs Fermi telescope to unveil a remarkable 294 pulsars that emit gamma rays. David Smith, who coordinated the study highlighted that these pulsars cover a range of topics such as stellar evolution, cosmic rays and even the quest for gravitational waves and dark matter. This new catalog serves as a compilation of all known gamma ray emitting °pulsars. Serves as a stepping stone for future explorations.

What pulsars are and how they work

Pulsars are neutron stars that remain after stars undergo supernova explosions. These neutron stars are 27 kilometers wide but possess a mass greater, than our Sun making them incredibly dense objects observed directly by astronomers. Pulsars possess features, such as strong magnetic fields and incredibly swift rotation (with the fastest one known to spin a mind boggling 716 times per second). These remarkable celestial objects emit beams of energy that resemble a pulsating signal as they whirl in space. When these beams graze the Earth astronomers detect bursts of radiation.

The new catalog

The new study includes the work of 170 scientists around the world. A dozen radio telescopes regularly monitor thousands of pulsars, and radio astronomers search for new ones among the gamma-ray sources discovered by the Fermi telescope. In short, more than 15 years after its launch, Fermi remains an incredible discovery machine for these types of stars. Of the 3,400 known pulsars, most of which are radio-observable and located in our galaxy, the Milky Way, only about 10 percent pulsate in gamma rays, the most energetic form of light.


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