We report on 13 sub-arcsecond binaries, detected by means of lunar occultations in the near-infrared at the ESO Very Large Telescope. They are all first-time detections, except for the visual binary HD~158122 which we resolved for the first time in the near infrared. The primaries have magnitudes in the range $K$=4.5 to 10.0, and the companions in the range $K$=6.8 to 11.1. The magnitude differences have a median value of 2.4, with the largest being 4.6. The projected separations are in the range 4 to 168 milliarcseconds with a median of 13 milliarcseconds. We discuss and compare our results with the available literature.
With this paper, we conclude the mining for binary star detections in the volume of 1226 occultations recorded at the VLT with the ISAAC instrument. We expect that the majority of these binaries may be unresolvable by adaptive optics on current telescopes, and they might be challenging for long-baseline interferometry. However they constitute an interesting sample for future larger telescopes and for astrometric missions such as GAIA.
A study on the contribution of the interplanetary medium in radio occultation experiments
Indian Institute of Technology Indore（印度印多尔理工学院）；Indian Space Research Organization, Vikram Sarabhai Space Centre（印度空间研究组织，维克拉姆·萨拉巴hai航天中心）；ISRO Telemetry Tracking and Command Network（印度空间研究组织遥测跟踪与指令网络）；The University of Tokyo（东京大学）
Eclipses by Artificial Satellites to Measure the Angular Sizes of Stars
Durham University（杜伦大学）；University of Toronto（多伦多大学）；University of California, Berkeley（加州大学伯克利分校）；The Hong Kong University of Science and Technology（香港科技大学）；Nazarbayev University（纳扎尔巴耶夫大学）；Université Paris Diderot（巴黎狄德罗大学）；Université de Paris（巴黎大学）；Donostia International Physics Center（多诺斯蒂亚国际物理中心）；University of the Basque Country UPV/EHU（巴斯克大学）
