[Astronomy seminar] Astronomy Seminar Friday 28/8 10:30 via zoom: Lorenz Roth

Mon Aug 24 11:52:52 CEST 2020

Dear all,

On Friday August 28, 10:30, we will have the next Astronomy seminar remotely via zoom.

Our speaker is Lorenz Roth from KTH and he will speak about:

Title: The ongoing search for water plume activity on Jupiter’s moon Europa

Abstract: Jupiter’s moon Europa might harbor life in its vast water ocean below the thick ice crust. This deep subsurface habitat could potentially be investigated at locations of active outgassing, giving the question whether Europa is geologically active a crucial importance. Evidence for present-day activity yet remained elusive for decades.
In 2012, Hubble Space Telescope observations revealed localized hydrogen and oxygen emissions, refueling the idea that Europa is actively outgassing water vapor. Following this detection several studies derived the existence of water vapor plumes on various locations. These studies used a variety of methods from remote-sensing telescope observations (HST, Keck) to in-situ spacecraft magnetic field and plasma measurements. However, the final proof for the existence of active water plumes is still missing. I will review the different studies claiming evidence and explain why we still do not understand Europa’s plume activity.

https://www.albanova.se/event/astronomy-seminar-via-zoom-lorenz-roth/

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 agreed with the organisers of the astronomy seminars in Uppsala to share this invitation also with the astronomy institute in Uppsala.

We hope to see all of you there!

Arjan & Janet

Upcoming events:

4/9: Chris Usher (SU)
11/9: PhD Defence Veronica Menacho (no seminar)
18/9: João da Silva Santos (SU): PhD seminar
25/9: Freeke van der Voort (Cardiff)

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Arjan Bik is inviting you to a scheduled Zoom meeting.

Topic: Astronomy Seminar Lorenz Roth
Time: Aug 28, 2020 10:30 AM Stockholm

Join Zoom Meeting
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Meeting ID: 650 3372 6716
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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
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