Event

Please join us for a presentation by Dr. Adam Smercina, postdoctoral research fellow in the Department of Astronomy at the University of Washington.  <https://astro.washington.edu/people/adam-smercina >.  
Dr. Smercina's research includes how galaxies form and evolve, from the smallest dwarf galaxies to large galaxies like the Milky Way.  Using gas content, resolved stellar populations, and satellite populations of galaxies roughly the size of our Milky Way, Dr. Smercina will discuss how they may change over time, especially as a result of their interactions with other galaxies. 
Dr Smercina, by using Hubble Space Telescope images of tens of millions of individual stars in M33, explain how we can recover information about the properties of these stars, such as their age. Comparing these resolved distributions of stars, the different ages of stars from very young, to very old stars in the galaxy. While star light is almost completely hidden at visible wavelengths, HST multi-spectral images of M33 reveal it to be a barred galaxy, with two very dominant spiral arms. The beautiful "flocculent" structure that captivates the attention in optical images is entirely driven by the youngest, brightest populations. He will discuss where this difference comes from and more of the context of old and young stars in M33 in the Aries/Andromeda system.
SAS Website address: <https://www.seattleastro.org/events/2795>
UW Newspaper address: < https://astro.washington.edu/news/2023/01/10/old-and-new-stars-paint-very-different-pictures-triangulum-galaxy >

Date: Wednesday, April 19, 2023

Time: 7 p.m. - 9 p.m. Pacific

Location: University of Washington
3910 15th Avenue NE
Ronald Geballe Auditorium, Room A102
Seattle, WA

Information for Visitors

Location Details

Notes:
The UW/Physics & Astronomy Auditorium, Main Floor, Room A-102 is the site of SAS monthly meetings. For further details see the SAS website @ www.seattleastro.org