How do environmental processes quench cluster galaxies?
Allison Man (email@example.com) and Brett Gladman (firstname.lastname@example.org)
All are welcome to this event!
The Virgo Environment Traced in CO Survey (VERTICO) is an Atacama Large Millimeter/submillimeter Array Large Program that has mapped the distribution and kinematics of star-forming molecular gas across 51 Virgo Cluster satellite galaxies on sub-kpc scales.
In this talk, I will showcase VERTICO results revealing how environmental mechanisms actively remove molecular gas, alter its distribution, and change the composition of the interstellar medium in cluster galaxies. I will also show that ram pressure stripping systematically increases molecular gas densities and triggers star formation activity on the leading half of the galaxy during the early stages of cluster infall, while lengthening gas depletion times and quenching galaxies in the latter stages.
How do galaxies evolve? is the question at the heart of my research. In search of answers, I examine the relationships between the gas in galaxies - as the fuel for forming new stars - and their stellar, star formation, and chemical properties. My specialism lies in the analysis of large multi-wavelength datasets in order to understand galaxy populations as a whole.
I lead VERTICO, the Virgo Environment Traced in CO survey, an ongoing ALMA Large Program that is investigating the effect of extreme environments on galaxies by mapping the star-forming molecular gas in 51 galaxies in our nearest galaxy cluster, Virgo. VERTICO is the first ever Canadian-led ALMA Large Program and our team is made up of world-class researchers from all over the world who are working to reveal the physical mechanisms that drive galaxy evolution in dense environments in brilliant detail.
- View Toby's website here: https://drtobybrown.com
- See his Youtube video on Extreme Cosmos here; see his Vimeo video from FameLab Australia on how Dark Matter shapes the universe here.
- Learn about VERTICO the Virgo Environment Traced in CO survey.