Introduction
In the electromagnetic spectrum, radio waves have always had the longest wavelengths. They vary in size from a football to the size of our whole planet. Radio waves may be produced by astronomical objects with a fluctuating magnetic field. Each day of bursts involving radio waves from either the Sun’s corona or planets in our solar system were recorded by the WAVES radio astronomy instrument on the WIND spacecraft.
Planets, comets, huge clouds involving dust and gas, stars, as well as galaxies are all visible via radio telescopes. Astronomers may learn about these objects’ composition, organization, as well as motion by analyzing the radio waves they emit. The benefit of radio astronomy is that it is unaffected by sunshine, clouds, or rain.
‘No Currently Understood Pattern’ Fits Mysterious Radio Signal coming From the Center of the Galaxy.
Astronomers have found a strange signal emanating from our galaxy’s core that “fits no presently known pattern of fluctuating radio source and may indicate a new type of star object”.
The scientists first thought the signal came from such a pulsar — a kind of star which rotates at high velocities — or even a star producing massive solar flares. They observed that perhaps the signals out from newly discovered sources do not match what we anticipate from those kinds of stars after further investigation. In an article posted in the Astrophysical Journal, they described their new results.
The emergence of these strange radio emissions has raised the possibility of a new kind of star object. More observations were performed with international academics well over nine months in 2020, and the astronomers could quickly identify six radio emissions from the source. It is also worth noting that the astronomers observed nothing when they tried to see the origin of the radio waves in visible light.
These radio waves are currently unclassified, but Wang’s Ph.D. supervisor, Professor Tara Murphy, believes that such transcontinental Square Kilometer Array (SKA) radio telescope, which is expected to go online in the next ten years, will be able to help in the search for the source of the radio waves.
Looking up into the sky for strange celestial objects.
The most unusual feature of such ubiquitination is its very high polarization. This implies that its light only oscillates in one direction, which rotates with time. The object’s brightness fluctuates significantly by a proportion of 100, as well as the signal seems to turn on and off at random.
According to scientists, the signal flutters on-off at unpredictable periods lasting weeks on end before suddenly switching off’ and becoming black – something which does not correspond to any recognized space objects.
Modern advanced telescopes may be able to solve the puzzle.
The researchers identified 6 radio signals from either source during nine months in 2020. They were astonished to discover nothing when they attempted to identify the item in visible light. Astronomers are presently unable to classify the unusual radio wave source. Radio transients are frequently indications for uncommon celestial occurrences because of their brief bursts of radio waves.
A transcontinental Square Kilometer Array (SKA) radio telescope would be operational within the next decade. Every day, it will be able to create sensitive sky maps. This space telescope might aid in the investigation of the enigma, as well as opening the scientific society’s eyes to a slew of new mysteries lurking in the Universe.
Wrapping up
Many different kinds of stars produce light that varies throughout the electromagnetic spectrum. The study of changeable or transitory entities in radio waves has become a significant area of research because of great advancements in radio astronomy, allowing us to learn more about the mysteries of the Universe. Pulsars, supernovae, flaring stars, and rapid radio bursts are examples of bright astronomical objects.
The data obtained is similar to a new class of enigmatic phenomena described as Galactic Centre Radio Transients, which includes one known as the cosmic burper. Emissions from other radio waves have been discovered in recent months as researchers continue to look for additional hints. NASA discovered the source of unexplained rapid radio bursts transmitting messages to Earth in May of 2021.
References –
https://thehackposts.com/mysterious-radio-signal-from-our-galaxys-core-fits-no-known-pattern/
https://www.cbsnews.com/news/milky-way-mysterious-radio-waves-astronomers/
