After connecting through Boys Scouts of America (soon to be
Scouting
America) at the
Foothill
College Observatory during one of their
Friday
Evening Public Viewing events hosted by the Peninsula
Astronomical Society (
PAS), Dr.
Christiaan Boersma, working with the Astrophysics &
Astrochemistry Laboratory Group and a member of the NASA Ames PAH
IR Spectroscopic Database Team, was invited to provide a PAS public
lecture at the
Public Library of Los
Altos. An engaging audience, some 25 in attendance in-person
and 10 remotely, listened to a one-hour talk on the Astrochemistry
behind some of the spectacular imagery being returned by the James
Webb Space Telescope’s (JWST), with a focus on polycyclic aromatic
hydrocarbons (PAHs). A historical overview of the development of
the PAH hypothesis and how it was shaped into a full-fledged model
was presented, highlighting Ames' pivotal and continuing role in
astronomical PAH research. Data from the PDRs4All JWST Early
Release Science Program on the Orion Bar and that from the JWST GO
Cycle 1 program titled "Deuterated PAHs, PAH-nitriles, and PAH
Overtone and Combination Bands" formed the high point of the
evening.