Water plumes over Europa |
Water plumes over Europa |
Dec 12 2013, 04:55 PM
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#1
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Member Group: Members Posts: 401 Joined: 5-January 07 From: Manchester England Member No.: 1563 |
This seems like the relevant place to post this (could be wrong): Water plumes from Europa? Apologies if it's already been up. The link to the Science article at the bottom doesn't work for me, does anyone have a working link to the original? Cheers.
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Dec 12 2013, 10:02 PM
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#2
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
I have now taken a quick look at the article. An enhanced emission was detected near 90° west longitude. Here is a quick and dirty orthographic render of Europa's southern hemisphere:
If I understand the article correctly the most likely location for the plume source is near longitude 90°W in the far south. As the render above shows, most of the terrain in the area of interest isn't very well imaged although there is a narrow swath of good images near 90°W. There are some Europa diagrams near the top in this interesting blog entry at the Planetary Society website but the diagrams are rather fuzzy and it's not completely obvious to me what they are showing or where - possibly the location of a likely source region. It will be interesting to see how this affects the JUICE plans. Plumes like this one should be easily detectable by JUICE - the problem is if they are transient. As currently planned, the closest approach occurs approximately over Thrace and Thera Macula (in the image above, the two dark spots near bottom at 180°W). |
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Dec 13 2013, 04:19 PM
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#3
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Administrator Group: Admin Posts: 5172 Joined: 4-August 05 From: Pasadena, CA, USA, Earth Member No.: 454 |
I have now taken a quick look at the article. An enhanced emission was detected near 90° west longitude. Here is a quick and dirty orthographic render of Europa's southern hemisphere: If I understand the article correctly the most likely location for the plume source is near longitude 90°W in the far south. As the render above shows, most of the terrain in the area of interest isn't very well imaged although there is a narrow swath of good images near 90°W. There are some Europa diagrams near the top in this interesting blog entry at the Planetary Society website but the diagrams are rather fuzzy and it's not completely obvious to me ... Thanks for making that orthographic image. Here is a higher-resolution version of the graphic that I put in that blog entry. It shows a model for stresses along cracks near the south pole when Europa is at apoapsis. Can you identify which specific images contain these cracks? -------------------- My website - My Patreon - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
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