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Source of mysterious radio signals found
Astronomers identified the source of one of the mysterious radio signals coming from deep space as a nearby binary star system.
Astronomers have identified the source of one of the mysterious radio signals coming from deep space. These regular signals, which have long attracted the attention of researchers, were found to be produced by a nearby binary star system with strong magnetic interactions.
Highlights
- The signal source was identified as a system named ASKAP J1745−5051.
- The system contains a dense white dwarf and a larger, less dense companion star.
- One of the stars is pulling matter from the other, creating strong emissions.
- The signals stand out due to the regular repetition of radio waves and X-rays.
- The findings lead to a reevaluation of previous assumptions about some similar celestial events.
Binary star system under the lens
The study noted that the system named ASKAP J1745−5051 consists of two stars orbiting very close to each other. One of these stars is a dense white dwarf, while the other is a larger but less dense companion star.
During the matter transfer between the two celestial bodies, the matter pulled from the companion star heats up as it moves toward the white dwarf, producing high-energy radiation. Researchers evaluated this process as the main reason for the regular radio pulses and X-ray bursts.
New explanation for a long-standing mystery
The signals studied by scientists are known in the astronomical literature as long-period transient radio events. These events are notable for recurring radio waves and strong X-rays. This regular structure distinguishes them from other cosmic sources.
According to the research team, the origin of such signals was previously associated with slowly rotating neutron stars in some assumptions. The new findings show that, at least in the examined case, the source is a binary star system.
Energy flow produces the signal
The team conducting the study stated that the magnetic fields in the system also play an important role in the formation of these regular pulses. The combination of matter flow and magnetic effects is the main factor explaining the observed radio emission and X-ray regularity.
According to experts, this result represents an important step in understanding high-energy cosmic events. It also shows that some mysterious signals in the universe may be produced by mechanisms different from what was previously thought.
Context: Such findings open new research areas in astronomy by revealing that distant star systems can produce not only light but also regular radio and X-ray signals.
The picture presented by the study shows that some of the cosmic signals long sought after can now be linked to a more concrete physical model. Researchers emphasize the importance of continuing observations to detect similar sources.
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