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TeV Halos Around Middle-Aged Pulsars May Be Universal, Study Reveals Introduction: Pulsars and Their Mysterious Radiation Rapidly rotating neutron stars known as pulsars give off periodic radio wave emissions and streams of magnetic radiation, some of which are observable from Earth. These stellar remnants originate from the explosive deaths of massive stars. Discovery of TeV Halos Around Middle-Aged Pulsars Astronomers have recently detected expansive regions emitting gamma rays at TeV energies surrounding middle-aged between 100,000 and one million years. Termed TeV halos, these zones are markedly larger than the pulsars' own wind nebulae — clouds formed by the rotation and magnetic fields of the neutrons stars. Scientific Mystery: What Causes TeV Halos? The existence of TeV halos encircling some middle-aged pulsars is now well-substantiated, but the underlying processes responsible for their emergence are still not fully understood. It also remains an open question whether these...

Astronomers Discover 18 New Pulsars Using Arecibo Telescope Data Discovery of 18 New Pulsars Astronomers from West Virginia University, in collaboration with other institutions, have identified 18 new pulsars through the Arecibo Observatory, as a part of the AO 327-MHz Drift Survey. These discoveries were outlined in a paper published on February 6. What Are Pulsars? Pulsars are rapidly rotating neutron stars with strong magnetic fields that emit beams of electromagnetic radiation. Typically identified through brief radio bursts, some pulsars are also observed in optical, X-ray and gamma-ray wavelengths. The AO327 Survey: Purpose and Scope The AO327 survey, conducted with the Arecibo telescope at 327 MHz, operated from 2010 to December 2020. Its objective was to systematically search the entire Arecibo-visible sky (declinations between-1 °  and 38° ) for pulsars and radio transients. Key Findings from the AO327 Survey By examining data from the AO327 survey, astronomers under the ...