... I[*]
Based on observations made with the 6-m BTA telescope, which is operated by the Special Astrophysical Observatory, Russia.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Copyright ESO 2005