Berry Holl

Dr Berry Holl

Adjoint scientifique / Classification

Ecogia P106 / Observatoire de Genève S266
+41 22 379 22 67
+41 22 379 22 05

Berry Holl obtained his PhD in 2012 at Lund Observatory, Sweden, working with Lennart Lindegren on the ‘Characterization and analysis of the astrometric errors in the global astrometric solution for Gaia‘. During his PhD he was part of the Marie Curie Research Training Network ELSA and has additionally been involved in the calibration issues related to radiation damage of the Gaia CCDs. Currently he being Research Associate at the CU7 group in Geneva focussing on classification and eclipsing binaries.

Current Activities

  • Improvement of classification pipeline and trying to converge on a Varipipe Iterative Solution,
  • Involved in Eclipsing Binary characterisation, detection and (sub) classification,
  • team planning and management.
Research Interests
My scientific interests are most generally covered by the question: how can we determine the best answer to a particular scientific problem from a set of measurements? This has three parts: first we need to define exactly what the problem is, i.e., without a clear description and nomenclature it is impossible to formulate a proper answer. The second part is how to design an experiment that best captures a ‘signal’ containing information that can be used to answer the questions in the problem. Third, given the raw measurements, how can we extract as much information from it to solve the problem? My interests therefore lie in the areas of detection techniques, instrumentation, modelling, statistical methods, and data presentation and visualization. The latter two points I find of great importance as well: whether I am talking with fellow scientists or a general audience, I need to be able to clearly convey my ideas and work to allow other people to learn and get new ideas from it, as well as that I can learn and have new ideas from them. This sharing is for me key to having a high scientific productivity. My interests in astronomy are very broad, ranging from astrometric techniques, detection of binary stars/exoplanets, designing algorithms, to (intensity) interferometry and instrument design.