121617

: This paper, available on ArXiv and Astronomy & Astrophysics , provides a detailed analysis of a newly discovered "arc" of enhanced dust density within the disk.

HD 121617 is a young (approx. 16 million years old) A1V-type star located about 118 parsecs away. 121617

: It hosts one of the most massive gas-rich debris disks detected to date. : This paper, available on ArXiv and Astronomy