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Assembly Series

A tradition of convening thought leaders since 1953

McKelvey School of Engineering

Cosmic-Ray Astrophysics

Wednesday, September 8 | 4:00 PM

Crow Hall, 204
Crow Hall, St. Louis, MO 63105

Galactic cosmic rays are relativistic nuclei measured directly by detectors flown above most, if not all, of the atmosphere, such as the Super Trans-Iron Galactic Element Recorder (SuperTIGER) and the CALorimetric Electron Telescope (CALET). SuperTIGER has successfully flown two times on stratospheric balloons over Antarctica in the 2012-2013 and 2019-2020 seasons at altitudes up to ~130,000 ft, which is above all but the last ~0.5% of the atmosphere. CALET has been flying on the International Space Station (ISS) in low-earth orbit since its launch on the HTV-5 rocket and installation on the ISS in August 2015 and is approved to continue operations through the end of 2024. This talk will touch on the broader science of these instruments but will primarily focus on measurements of ultra-heavy Galactic cosmic rays.

This colloquium will be live as well as on Zoom.

Register for colloquium.

Event Type



Arts & Sciences


Science & Technology



Event Contact


Speaker Information

Brian Rauch from Washington University in St. Louis will be presenting the colloquium "Cosmic-Ray Astrophysics on Balloons and the ISS with SuperTIGER and CALET"

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