The resulting fireball was 60 times hotter than the surface of the sun.
"Soft X-rays are not very energetic and easily absorbed by interstellar medium, so we cannot see very far in this band, which limits the number of observable objects, be it a nova or ordinary star," Victor Doroshenko, an astrophysicist at Tübingen University in Germany and another co-author of the study, said in the same statement.
The nova was so strong that the resulting image from the eROSITA X-ray telescope was completely overexposed, since the instrument was calibrated to observe much subtler X-rays. But the team was able to compensate for that exposure. "Using the model calculations we originally drew up while supporting the development of the X-ray instrument, we were able to analyze the overexposed image in more detail during a complex process to gain a behind the scenes view of an explosion of a white dwarf, or nova," FAU astrophysicist Jörn Wilms and study co-author said in the statement.
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