[Astronomy seminar] Astronomy Department Seminar - April 29th Renske Smit

[Astronomy seminar announcements]

Unfortunately our speaker has had to cancel so there will be no seminar 
this week.

Chris

On 25/04/2022 11:09, Chris Usher wrote:
>
> On Friday, April 29th Renske Smit (LJMU) will be giving our next 
> seminar via Zoom.
>
> *An ALMA view of galaxies in the Epoch of Reionization*
>
> In the past decade hundreds of galaxy candidates have been identified 
> in the Epoch of Reionization (EoR), selected from their rest-frame UV 
> light. Only a handful of these sources, however, have spectroscopic 
> redshift determinations and we have limited understanding of their 
> properties. ALMA is currently transforming this field by identifying 
> massive ISM reservoirs at z>6.5 from bright [CII] line emission. I 
> will describe how we obtained the first spectroscopic confirmations of 
> galaxies in the EoR with ALMA, where Lya often remains undetected due 
> to the intervening neutral IGM, and how ALMA is now rapidly becoming a 
> 'redshift machine' for the distant Universe. With the spectroscopic 
> redshifts in hand, we are in a position to start probing the physical 
> properties of these sources, including their fine structure line 
> ratios, dust content and temperature, structural properties and 
> low-resolution kinematics. A picture is starting to form of complex 
> structures within these galaxies with distinct dusty and UV-bright 
> components which exhibit different ISM properties. Moreover, we find 
> evidence that some of these galaxies are already rotation-dominated 
> disk-like sources, just 800 million years after the
> Big Bang.
>
> We are trying something new this year with leaving the Zoom call open 
> after the formal hour of the seminar is up to allow the speaker, if 
> they wish, to chat informally with anyone who is interested.
>
> Thanks
> Chris and Carolina
>
> Christopher Usher is inviting you to a scheduled Zoom meeting.
>
> Topic: Astronomy Department Seminar - Renske Smit
> Time: Apr 29, 2022 10:30 AM Stockholm
>
> Join Zoom Meeting
> https://stockholmuniversity.zoom.us/j/69717398551
>
> Meeting ID: 697 1739 8551
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