OH What a Lovely Molecule!
A Workshop on all things Hydroxyl
To be held online
23-27 June 2025

Zoom
All sessions will take place on Zoom! Here is the Zoom link for all sessions.
Meeting ID: 872 8358 1696
Password: 859698
Slack
Here is a link to the workshop Slack space. We’ll use this to allow for everyone to join in the discussions, despite their timezone.
Introductory Slides
If you would like to provide an introductory slide, please add it to this google slide.
Lists!
During the workshop we’ll be compiling several lists of key contact people:
Data sets and surveys
Telescopes
Codes
Code of Conduct
Workshop code of conduct can be found here. In the case of any breaches of the code of conduct please reach out to a member of the LOC/SOC directly and the issue will be dealt with swiftly and in strict confidence.
Program
The full program with times and talks is available here.
Program summary:
Each day of the workshop will have a theme:
Monday 23 June: Diffuse OH in the ISM – We start our workshop in the diffuse interstellar medium at the HI to H2 transition. We’ll look at OH/H2 abundances and discuss observations and modelling as well as RFI mitigation and how to get time on key telescopes.
Tuesday 24 June: Dense OH in the ISM – We’ll move on to more dense molecular gas and discuss what that means for OH observations. We’ll also discuss some data analysis techniques including molecular excitation codes.
Wednesday 25 June: Star formation and evolution as traced by OH – As stars (especially the high-mass stars) begin to form deep within the molecular cloud, OH can tell us about the interactions between young stellar objects and their surroundings. We’ll discuss stellar feedback and accretion events on both long and short timescales, and how they can be traced by OH.
Thursday 26 June: Polarisation and magnetic fields – Magnetic fields play an important role in the process of star formation and polarisation observations present a unique challenge. We’ll discuss observations, calibration, interpretation and recent results in the context of the OH molecule in this challenging but exciting field.
Friday 27 June: Past, ongoing and future surveys and projects – Throughout the workshop we will compile a collection of useful past surveys and datasets and how to access them, along with ongoing and upcoming surveys. This will culminate on Friday as we outline key surveys such as SPLASH, GASKAP-OH, OH maser monitoring surveys and more, as well as discuss and plan future projects.