[Astronomy seminar] NOW: Astronomy seminar Friday 8/11: 10:30 FC61: Nikki Zabela

[Astronomy seminar announcements]

On 2019-11-04 7:47 , Alexis Brandeker wrote:
> Astronomy Seminar
>
> Time & location: Friday November 8, 10:30 in FC61
>
> Speaker: Nikki Zabela (Cardiff)
>
> Title:  How does the galaxy cluster environment affect molecular gas and
> star formation? - The ALMA Fornax Cluster Survey
>
> Abstract:
> When many galaxies crowd together in a small space, the environment gets
> harsher and more stressful for them. As a result, they wear out more
> quickly and retire younger than their peers in less populated areas:
> their star formation is quenched rapidly. This is why in galaxy clusters
> we find a large fraction of early-type galaxies compared to late-type
> spirals, which are much more common in the field.  It has been known for
> a while that the responsible mechanisms for this early quenching, such
> as ram pressure stripping, galaxy-galaxy interactions, and starvation,
> play a significant role in removing the atomic gas from galaxies. If
> they are able to also directly affect the much more tightly bound and
> centrally located molecular gas, is less obvious. Since this gas is the
> direct fuel for star formation, this would have important implications
> for the evolution of cluster galaxies, and, with many galaxies residing
> in clusters and groups, galaxy evolution in the universe. With the ALMA
> Fornax Cluster Survey we study the molecular gas in Fornax cluster
> galaxies to find out whether the molecular gas in cluster galaxies can
> be removed directly through these processes, and how this affects their
> star formation.
>
> Upcoming events:
> 15/11 (Fri) @ 10:30: Angela Adamo (SU Astronomy)
> 22/11 (Fri) @ 10:30: Johan Fynbo (NBI)
> 29/11 (Fri) @ 10:30: Liisa Husu (Örebro University)
>
> Also see https://www.albanova.se/events/seminars/ for scheduled seminars.
>
> All welcome!
> Alexis Brandeker (Astronomy seminar organiser 2019)
>
>