[Astronomy seminar] Astronomy Seminar TODAY 12th of June: 10:30 zoom: Sven Wedemeyer

Fri Jun 12 06:45:26 CEST 2020

Dear all,

A reminder of today’s Astronomy seminar at 10:30.

> https://stockholmuniversity.zoom.us/j/65348295646 <https://stockholmuniversity.zoom.us/j/65348295646>

Best regards,

Arjan and Cristina

> On 8 Jun 2020, at 09:10, Arjan Bik <arjan.bik at astro.su.se> wrote:
> 
> Dear all,
> 
> On Friday the 12th of June we will have our last seminar of this semester remotely via zoom at 10:30.
> 
> Our speaker is Sven Wedemeyer from the University of Oslo (Norway).
> 
> Title: Observing the Sun with ALMA – Challenges, scientific potential, and first results
> 
> Abstract: The Atacama Large Millimeter/sub-millimeter Array (ALMA) in Chile is an interferometric array that consists of 66 antennas. Regular observations of the Sun with ALMA, which started in 2016, provide a new diagnostic tool for studying the solar chromosphere. The requirements for solar observations are different from many other observations with ALMA in the sense that the mapped atmospheric layers of the Sun evolve on very short timescales and the primary beam being filled with complex emission. High-cadence (snapshot) imaging is needed for such a dynamic target but it is very challenging. While the development of the solar observing mode is ongoing, ALMA now provides first scientific data featuring, among other things, the imprint of magnetic fields and propagating shock waves.
> I will give a brief introduction to ALMA and its diagnostic potential for the Sun. The challenges with carrying out solar observations and post-processing the data will be addressed and first examples for Band 3 and Band 6 data and first scientific results will be presented.
> 
> 
>  https://www.albanova.se/event/astronomy-seminar-sven-wedemeyer/ <https://www.albanova.se/event/astronomy-seminar-sven-wedemeyer/>
> 
> We will have the colloquium using zoom. You will find the invitation at the end of this email.
> 
> Some guidelines:
> 
> 1) Join the session with your microphone muted.
> 
> 2) When you have a question, press the “raise hand button” and wait till you are asked to ask your question. 
> 
> 3) The session will be online from 10:20, please join at least a few minutes early as we would like to start 10:30 sharp.
> 
> We hope to see all of you there!
> 
> After the summer break we will start again on the 28th of august with the fall seminar series, most likely also via zoom.
> We wish you all a great summer!
> 
> Arjan & Cristina
> 
> =========================================
> Arjan Bik is inviting you to a scheduled Zoom meeting.
> 
> Topic: Astronomy seminar 12th of June
> Time: Jun 12, 2020 10:20 AM Stockholm
> 
> Join Zoom Meeting
> https://stockholmuniversity.zoom.us/j/65348295646 <https://stockholmuniversity.zoom.us/j/65348295646>
> 
> Meeting ID: 653 4829 5646
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> 
> -------------------------------------------
> Dr. Arjan Bik
> Stockholm University
> AlbaNova University Center
> Department of Astronomy
> SE-106 91 Stockholm - Sweden
> Tel: +46 (0) 85537 8549
> https://www.su.se/english/profiles/abik <https://www.su.se/english/profiles/abik>
> -------------------------------------------

-------------------------------------------
Dr. Arjan Bik
Stockholm University
AlbaNova University Center
Department of Astronomy
SE-106 91 Stockholm - Sweden
Tel: +46 (0) 85537 8549
https://www.su.se/english/profiles/abik
-------------------------------------------

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