Evidently, it’s a big week for news involving comets, as a team of astronomers now reports the detection of an intriguing series of radio signals emanating from one of the speeding objects (no, not that comet) currently making its way through our solar system.
The surprising news comes to us courtesy of a research team led by the Shanghai Astronomical Observatory of the Chinese Academy of Sciences, and was reportedly made possible with the Tianma Radio Telescope.
During multi-band radio observations of comet 12P/Pons-Brooks, the team detected an interesting series of radio signals coming from the returning comet, which is also one of the brightest comets astronomers have ever seen.
At a glance, this all sounds pretty tantalizing… but what does the detection of radio signals from a comet in our solar system actually mean?
A Returning Comet Stops In
First discovered in 1812, 12P/Pons-Brooks possesses an orbital period of around 71 years, meaning that this is actually the fourth time astronomers have had an opportunity to watch it during its journeys through the solar system.
During their recent observations of the Halley-type comet, the Chinese team says they measured the rate at which water was being produced by 12P/Pons-Brooks, which revealed the most distant known detection of ammonia molecules known to astronomers from such observations.
Since comets are known to contain a variety of icy components—many of which are as old as the solar system itself—they are ideal for observations by astronomers, particularly when these materials begin to bake off as the speeding objects make their way toward the Sun.
In the case of comets like 12P/Pons-Brooks, the presence of volatile ices shows that they haven’t been subjected to large amounts of thermal evolution since they were born in our solar system eons ago. Because of this, the study of the ices they carry and their composition offers a way for astronomers to look back in time at the chemical and thermal conditions that were present in our planetary neighborhood around 4.6 billion years ago.
Hellbound and Down 