Free Access
Issue
A&A
Volume 541, May 2012
Article Number A95
Number of page(s) 12
Section Interstellar and circumstellar matter
DOI https://doi.org/10.1051/0004-6361/201117677
Published online 07 May 2012

Online material

Appendix A: Colour diagrams

thumbnail Fig. A.1

TCDs for the clusters Berkeley 86 (left) and NGC 2244 (right). The solid line shows a normal extinction law, while the fitting for the cluster members is shown by a dotted line. Two extinction vectors (AV = 2 mag) related to different values of RV are plotted in the bottom panels, for illustration. Open circles indicate the members and crosses show the stars with P% < Pmin.

Open with DEXTER

thumbnail Fig. A.2

TCDs for NGC 2264 (left) and NGC 6530 (right).

Open with DEXTER

thumbnail Fig. A.3

Top: reddened ZAMS fitting to the cluster members with P% > Pmin (open circles). The position of the other stars of the sample is indicated by crosses. A full line shows the curve obtained with the fitting algorithm, while the dotted line shows the intrinsic U − B and B − V colours. Bottom: curves representing the limit ΔE(B − V) = 0.11 suggested by Burki (1975). From left to right: Berkeley 86, NGC 2244, NGC 2264, and NGC 6530.

Open with DEXTER


© ESO, 2012

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.