2 papers
astro-ph1998
Comparison of two different extinction laws with Hipparcos observations
Bing Chen, Jean Luc Vergely, Bernard Valette +1
Interstellar absorption in the galactic plane is highly variable from one direction to another. In this paper colour excesses and distances from a new open cluster sample are used…
astro-ph1997
The spatial distribution and luminosity function of the open cluster NGC 4815
Bing Chen, Giovanni Carraro, Jordi Torra +1
NGC 4815 is a distant and populous open cluster, which lies in the galactic plane in a region of strong absorption. As a consequence, its membership, spatial distribution and lumin…