Mysterious Cosmic Object ASKAP J1832-0911 Baffles Astronomers with Unique Radio and X-ray Emissions

May 28, 2025
Mysterious Cosmic Object ASKAP J1832-0911 Baffles Astronomers with Unique Radio and X-ray Emissions
  • The X-ray emissions detected by NASA's Chandra X-ray Observatory suggest significant events within the object, as X-rays typically originate from extremely hot and energetic environments.

  • Unlike traditional pulsars that emit radio signals at much shorter intervals, this object operates at intervals of minutes or hours, raising questions about its underlying mechanisms.

  • The research involved collaboration across multiple countries, utilizing data from various telescopes to confirm the repeating nature of the object's emissions.

  • Located approximately 15,000 light-years away in a densely populated region of the Milky Way, ASKAP J1832-0911's relationship with a nearby supernova remnant remains uncertain due to its unknown distance.

  • The discovery hints at the possibility of many more similar objects in the universe, which could enhance our understanding of their enigmatic characteristics.

  • Lead author Dr. Ziteng Andy Wang noted that the object may be a highly magnetized dead star, such as a neutron star or white dwarf, or possibly an unknown exotic object.

  • Currently, there is no known explanation for how the signals from this object are generated or why they activate and deactivate at such regular intervals.

  • ASKAP J1832-0911 appears to be located within a supernova remnant, but researchers believe this is coincidental and the two are not associated.

  • The discovery of X-ray emissions from ASKAP J1832-0911 was unexpected and likened to 'finding a needle in a haystack' due to the observational constraints of telescopes like Chandra and ASKAP.

  • Co-author Dr. Nanda Rea indicated that the transient is likely not a magnetar, despite its location within a supernova remnant, and may instead represent a white dwarf with an unusually strong magnetic field.

  • Over a six-month period, the star's X-ray and radio emissions displayed dramatic changes, an unprecedented phenomenon within the Milky Way.

  • Astronomers have identified a new cosmic object, ASKAP J1832-0911, first detected by the Australian Square Kilometre Array Pathfinder in December 2023, which emits both radio waves and X-rays in a unique 44-minute cycle.

Summary based on 21 sources


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