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Saturday May 04, 2024

W1935: Dancing lights on star-less isolated brown dwarf baffle Nasa astronomers

As per James Webb Space Telescope data, W1935 emanates infrared emissions made up of methane suggesting existence of aurora-like features

By Web Desk
January 10, 2024
James Web telescope discovered an isolated brown dwarf having an aurora-like phenomenon — BNN breaking
James Web telescope discovered an isolated brown dwarf having an aurora-like phenomenon — BNN breaking

The James Webb Space Telescope has made a massive discovery, an isolated brown dwarf in space, W1935, emanating infrared emissions made up of methane suggesting a possible existence of aurora borealis-like features also known as the northern lights, reported BNN breaking.

A brown dwarf is an object bigger than the planet Jupiter but smaller than a star.

Methane emissions are a common feature in gas giants like Jupiter and Saturn. But in a brown dwarf, it is surprising, as due to our previous understanding and research, for an aurora to form it requires a host star. 

As in the case of our solar system, Aurorae are formed on Earth when energetic particles from the sun interact with our planet's magnetic field, colliding with gas particles on either side of the poles creating mysterious curtains of dancing light.

Since W1935 has no star to generate a stellar wind, a team of researchers headed by Jackie Faherty has proposed that the possibility of methane around the brown dwarf could be due to interactions with either interstellar plasma or a nearby active moon.

The discovery of W1935 is significant because it raises so many questions as it the first isolated brown dwarf outside of our solar system that has auroral activity. 

These findings challenge our current understanding of auroral processes and provide a new path of research into atmospheric phenomena beyond our solar system.