The longevity of the oldest open clusters: Structural parameters of NGC 188, NGC 2420, NGC 2425, NGC 2682, NGC 6791, and NGC 6819

Alvarez-Baena N.; Carrera R.; Thompson H.; Balaguer-Nuñez L.; Bragaglia A.; Jordi C.; Silva-Villa E.; Vallenari A.
Astronomy and Astrophysics, Vol. 687, Num. A101 (2024)
Article
10.1051/0004-6361/202348220