Boy Lankhaar giving a talk on ALMA observations
Photo: Christoffer Hals · dScience, University of Oslo.

I enjoy giving talks across the full range and I try to make them genuinely pedagogical regardless of the audience. If you want me to talk, get in touch (my email is in the footer)!

Public engagement and outreach

I have given public lectures at the Gothenburg Science Festival and for the local Astronomical Club, given tours and high-school visits at Onsala Space Observatory, and been interviewed for Dutch national radio (Radio 1) and featured in Elsevier Weekblad and ETC Göteborg. A popular-science video accompanying my Nature Astronomy paper on methanol masers — Magnetic secrets of methanol in space — has reached around 20,000 viewers across YouTube and Facebook.

Scientific talks

  • Line polarization: radiative transfer implementation and scientific opportunities
    contributed · SKIRT days · Gent, Belgium · October 2025
  • A modification to the line radiative transfer equation due to many-body effects
    contributed · SKIRT days · Gent, Belgium · October 2025
  • Many-body effects and the line radiative transfer equation
    invited seminar · Astronomy and Astrophysics seminar, Chalmers University of Technology · Gothenburg, Sweden · September 2025 · recording
  • Line polarization in protostellar environments
    invited · EAS Annual Meeting · Cork, Ireland · June 2025
  • The polarization properties of flaring masers
    contributed · EAS Annual Meeting · Cork, Ireland · June 2025
  • Measuring the magnetic fields of AGN and protoplanetary accretion disks
    invited colloquium · Western University, Astronomy and Physics Colloquium · London, ON, Canada · March 2025
  • Measuring magnetic fields towards the AGN using spectral line polarization
    invited · Workshop on AGN Polarimetry · Strasbourg, France · September 2024
  • Astronomical line polarization through gas transport
    contributed · 33rd Symposium on Rarefied Gas Dynamics · Göttingen, Germany · July 2024
  • Spectral line polarization: characterizing magnetic fields and chirality
    contributed · New Eyes on the Universe: SKA and ngVLA · Vancouver, Canada · May 2023 · recording
  • A comprehensive model of maser polarization
    contributed · IAU Symposium 380, Cosmic Masers · Kagoshima, Japan · March 2023
  • Stereodynamics in the interstellar medium
    "hot topic" talk · Stereodynamics 2022 · Greece · October 2022
  • Applied stereodynamics in the interstellar medium
    invited seminar · Leiden University, theoretical chemistry seminar · Leiden, the Netherlands · February 2022
  • Tracing cosmic magnetic fields in the interstellar medium using stereodynamics
    invited seminar · Institute of Molecules and Materials, Radboud University · Nijmegen, the Netherlands · February 2022
  • Tracing cosmic magnetic fields in the interstellar medium
    invited seminar · Leiden Observatory astrochemistry seminar · Leiden, the Netherlands · October 2021
  • Probing cosmic magnetic fields using molecules
    contributed · Astronomical Polarimetry 2020: New Era of Multi-Wavelength Polarimetry · online · March 2021
  • Tracing cosmic magnetic fields using molecules
    Hypatia Colloquium (competitive selection) · ESO · online · February 2021 · recording
  • HCN-VIB polarization: a CONspiracy between radiative-pressure anisotropy and the magnetic field
    invited · CON-quest workshop · online · January 2021
  • Line polarization in protoplanetary disks
    invited review · Magnetic Field Awakens conference · online · December 2020
  • Line polarization in disks with PORTAL
    contributed · 5 Years of HL Tau · online · November 2020
  • Maser polarization
    contributed · Cosmic Masers splinter session, German Astronomical Society meeting · Stuttgart, Germany · September 2019
  • The polarization of masers in star-forming regions
    contributed · Protoplanetary Disks and Polarization · Sant Cugat, Spain · March 2019
  • The polarization of SiO masers
    poster · IAU General Assembly · Vienna, Austria · August 2018
  • The gaseous universe
    invited review · Dutch Astrochemical Network kickoff meeting · Utrecht, the Netherlands · May 2018
  • The hyperfine structure and Zeeman effect of methanol masers
    contributed · IAU Symposium 336, Astrophysical Masers · Cagliari, Italy · September 2017
  • Tracing magnetic fields using methanol masers
    contributed · International Meeting for Molecular Spectroscopy · Champaign, IL, USA · June 2017
  • Methanol's Zeeman effect
    contributed · Crutcher and Heiles meeting on Star Formation and Magnetic Fields · Madison, WI, USA · May 2016 · recording