长期观测与模拟揭示超新星遗迹的共同起源
For over a decade, a gamma-ray space telescope has patiently mapped the high-energy sky. Its persistent observations recently uncovered something remarkable. A well-known supernova remnant, long studied by astronomers, is not alone. A much fainter and previously unnoticed remnant lies nearby. Data suggests these two glowing shells of gas may have been born from the same stellar explosion.
Detailed gamma-ray analysis shows both remnants are plowing into identical dense gas clouds. The radiation they produce peaks at the edges, a sign that shock waves are hitting the same surrounding material. For example, the southern edge of the bright remnant and the northern boundary of the faint one both show similar gamma-ray colors. This pattern strongly hints that they share a common interstellar environment.
Inspired by Scientific American reporting · Rewritten by Vocabsavvy · Vocabsavvy Original (inspired-by attribution)