Campaign details

As part of the 2025 spectroscopy internship at OHP, we are launching a collaborative campaign focused on the observation of several particularly interesting stars: 10 Lacertae, BW Vulpeculae, and T Coronae Borealis. Each target exhibits specific spectroscopic phenomena — such as pulsations, variability, or eruptive activity — which can be tracked in high spectral resolution..

Details

Throughout the internship, participants are invited to record and freely upload their spectra to a shared database that will serve as a central repository for all observations collected during the week. This will enable continuous monitoring from the beginning to the end of the workshop and allow for direct comparisons between different instruments and observers.

• 10 Lac is an O9V-type star, ideal for studying broad stellar lines and emission/absorption profiles.
• BW Vul is a pulsating β Cephei-type star whose rapid variability is clearly reflected in the Balmer lines.
• T CrB is a red giant star that exhibits strong chromospheric activity, making it a prime candidate for studying stellar flares and mass loss.