Gas in dusty discs. Published on A&A the study: “The co-existence of hot and cold gas in debris discs” of I. Rebollido (Universidad Autónoma de Madrid)
Some main sequence stars shows an excess of emission in far infrared with respect to photospheric values. This emission is thought to be thermal emission of dust grains and solid bodies associated with a debris disk orbiting around stars. This hypothesis has been confirmed when some of these disks, such as the one orbiting the star Fomalhaut, have been directly
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