Three Telescopes Catch the Tarantula Losing Heat

A composite image of the Tarantula Nebula doubles as a physics mystery: where did all that stellar energy go?

By The space-quantum Desk

A new composite image of the Tarantula Nebula — 160,000 light-years out in the Large Magellanic Cloud — stacks X-ray, infrared, and optical data into something that looks like layered colored cellophane. [1] It is also evidence of a disappearing-energy problem that has puzzled astrophysicists for years.

NASA's Chandra X-ray Observatory contributes the blue layer, capturing gas blown away by winds from the surfaces of young, massive stars and heated to millions of degrees by shock waves. [1] Webb adds red infrared data showing thousands of young stars and cool dust that will provide the ingredients to form new stars and planets. [1]

The puzzle: there is much less X-ray-emitting gas in the nebula than expected. [1] A research paper in the Astrophysical Journal, led by Jennifer Rodriguez of The Ohio State University, proposes three culprits. [1] Up to half of the hot gas is leaking through the shell walls and escaping the nebula entirely. [1] Finally, comparisons with computer simulations suggest the Tarantula may be losing energy through conduction — direct physical contact between hot and cooler material, like a frying pan on a burner — a process the source notes does not necessarily involve mixing the hot and cooler gas. [1]

What reads as a vivid art object turns out to be a record of energy in transit — a nebula bleeding heat through cracks, seams, and contact points that no single telescope could have located alone.

[1]

Where has this energy gone and what tamed the Tarantula Nebula?NASA / Astrophysical Journal research team