Hello NHAC!
Join us on Friday August 22 for our monthly NHAC meeting at Jack Fields Elementary School.
Here is what we have lined up:
6:30 p.m. Chris Jones will let us know about various Astronomy League observation programs – how to find them, plus the requirements and forms to use
7:30 p.m. Jakob Helton will discuss his work in extragalactic astronomy and the formation of some of the most distant galaxies! From Jakob:
Extragalactic astronomy began nearly a century ago with the discovery of the first galaxies. Since then, our understanding in this field has progressed tremendously, both observationally and theoretically. However, prior to the launch of the James Webb Space Telescope (JWST), high-redshift galaxies were not well understood due to observational limitations. With its suite of infrared instruments, JWST has fundamentally changed our understanding of extragalactic astronomy and the distant Universe by revealing an early period of galaxy formation that was more vigorous than expected based on pre-JWST predictions, finding luminous galaxies in the first few hundred million years after the Big Bang. In this talk, I will discuss how I studied one of the most distant spectroscopically confirmed galaxies, JADES-GS-z14-0, at redshift beyond 14 using ultra-deep imaging from JWST’s Near Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI). My work discovered rapid mass assembly and metal enrichment during the earliest phases of galaxy formation, while demonstrating the unique power of mid-infrared observations to understand galaxies at the break of cosmic dawn. I conclude my talk by discussing the outlook for future work in identifying and understanding the most distant galaxies with JWST, alongside existing and upcoming telescopes.
We will have sandwiches and drinks for a light meal. Bring a comfy chair if you don’t want to sit at the cafeteria tables
NHAC = good friends and the best presentations. See you on the 22nd!
Zoom info:
https://us02web.zoom.us/j/
Meeting ID: 831 6043 6778
Passcode: 110739