Sci-tech

James Webb Telescope discovers failed star generating aurorae

Temperature of brown dwarf is around 204 degrees Celsius

Web Desk
April 18, 2024
The brown dwarf is called CWISEP J193518.59–154620.3 or W1935. — YouTube/Nasa Video
The brown dwarf is called CWISEP J193518.59–154620.3 or W1935. — YouTube/Nasa Video

Scientists have surprisingly discovered a brown dwarf or a failed star that is emitting methane, using the powerful James Webb Space Telescope, as researchers suggested that these cold bodies do not support conditions for methane that could emit infrared light.

The discovery comes as the James Webb Telescope is investigating 12 such failed stars explaining that these celestial bodies can generate northern lights-like aurorae.

The brown dwarf is called CWISEP J193518.59–154620.3 or W1935 and is located at a distance of 47 light-years from our planet Earth, reported Space.com.

The estimated temperature of the dwarf is around 400 degrees Fahrenheit (204 degrees Celsius).

The findings published in the journal Nature suggested that the aurorae are caused by a moon which is yet to be discovered.

Nasa says brown dwarfs are objects that straddle the dividing line between stars and planets. — Nasa

Jackie Faherty, team leader and senior education manager at the American Museum of Natural History, said in a statement: "We were confused about what we were seeing at first, but ultimately, that transformed into pure excitement at the discovery."

What is a brown dwarf?

According to Nasa, brown dwarfs are objects that straddle the dividing line between stars and planets. They form like stars, growing dense enough to collapse under their own gravity, but they never become dense and hot enough to begin fusing hydrogen and turn into a stars.

"At the low end of the scale, some brown dwarfs are comparable with giant planets, weighing just a few times the mass of Jupiter," wrote Nasa.

Since solar winds cause aurorae in Earth, Saturn, and Jupiter, scientists were baffled at how such lights were being formed on the lonely planet.

Therefore scientists are concluding a moon that has not yet been identified, comparing the method with that of natural satellites of Jupiter and Saturn that emanate substance in space.


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