IPB

Welcome Guest ( Log In | Register )

Pluto's Expanding Atmosphere Confounds Researchers, Pluto Atomosphere
bagelverse
post Apr 19 2011, 08:26 PM
Post #1


Junior Member
**

Group: Members
Posts: 21
Joined: 4-November 10
Member No.: 5509



Pluto's Expanding Atmosphere Confounds Researchers

http://news.sciencemag.org/sciencenow/2011...onf.html?ref=hp

Could these be evidence of geyers like on Triton?
Go to the top of the page
 
+Quote Post
 
Start new topic
Replies
Paolo
post Apr 21 2011, 10:18 AM
Post #2


Senior Member
****

Group: Members
Posts: 1729
Joined: 3-August 06
From: 43° 35' 53" N 1° 26' 35" E
Member No.: 1004



may someone with some time to spare and Pluto and Charon masses and distance at hand compute where the L1 lagrangian point would lie?
I was thinking: how much would the atmosphere of Pluto need to inflate before mass transfer to Charon begins? this is what happens on some classes of double stars including some kinds of supernovae
Go to the top of the page
 
+Quote Post
AndyG
post Apr 21 2011, 11:30 AM
Post #3


Member
***

Group: Members
Posts: 593
Joined: 20-April 05
Member No.: 279



I get L1 for Pluto lying around 5050km from the centre of Charon, 14520km from the centre of Pluto. About 4/5ths of the way from Pluto to Charon.

Andy
Go to the top of the page
 
+Quote Post
Greg Hullender
post Apr 22 2011, 04:57 AM
Post #4


Senior Member
****

Group: Members
Posts: 1018
Joined: 29-November 05
From: Seattle, WA, USA
Member No.: 590



QUOTE (AndyG @ Apr 21 2011, 04:30 AM) *
I get L1 for Pluto lying around 5050km from the centre of Charon

I get 5210 km from Charon. Wonder where the discrepancy comes from?

--Greg
Go to the top of the page
 
+Quote Post
Paolo
post Apr 22 2011, 05:19 AM
Post #5


Senior Member
****

Group: Members
Posts: 1729
Joined: 3-August 06
From: 43° 35' 53" N 1° 26' 35" E
Member No.: 1004



QUOTE (Greg Hullender @ Apr 22 2011, 06:57 AM) *
Wonder where the discrepancy comes from?


that's not really important. the point to me is that Pluto's swollen atmosphere fills a sizeable portion of its Roche lobe, making Mass transfer to Charon possible
Go to the top of the page
 
+Quote Post

Posts in this topic
- bagelverse   Pluto's Expanding Atmosphere Confounds Researchers   Apr 19 2011, 08:26 PM
- - tasp   Interesting. A tenuous atmosphere extending almos...   Apr 19 2011, 11:53 PM
|- - Greg Hullender   QUOTE (tasp @ Apr 19 2011, 04:53 PM) Just...   Apr 21 2011, 04:40 AM
|- - Den   QUOTE (tasp @ Apr 20 2011, 12:53 AM) A te...   Apr 21 2011, 10:08 AM
- - Paolo   see also the paper Discovery of carbon monoxide in...   Apr 20 2011, 05:12 AM
- - brellis   This is fascinating stuff! The Pluto system is...   Apr 20 2011, 10:41 AM
|- - Floyd   QUOTE (brellis @ Apr 20 2011, 05:41 AM) W...   Apr 20 2011, 11:30 PM
- - machi   This idea is theoretically possible (you must ...   Apr 20 2011, 12:39 PM
- - Drkskywxlt   Pluto's atmosphere is (almost certainly) hydro...   Apr 20 2011, 01:32 PM
|- - Rob Pinnegar   QUOTE (Drkskywxlt @ Apr 20 2011, 06:32 AM...   Apr 21 2011, 12:39 AM
||- - Drkskywxlt   QUOTE (Rob Pinnegar @ Apr 20 2011, 08:39 ...   Apr 21 2011, 12:47 PM
||- - Rob Pinnegar   QUOTE (Drkskywxlt @ Apr 21 2011, 05:47 AM...   Apr 22 2011, 03:39 AM
|- - AndyG   QUOTE (Drkskywxlt @ Apr 20 2011, 02:32 PM...   Apr 21 2011, 10:03 AM
|- - Drkskywxlt   QUOTE (AndyG @ Apr 21 2011, 06:03 AM) And...   Apr 21 2011, 12:35 PM
- - nprev   That sort of begs the question of whether Pluto ha...   Apr 21 2011, 12:45 AM
- - Paolo   may someone with some time to spare and Pluto and ...   Apr 21 2011, 10:18 AM
|- - AndyG   I get L1 for Pluto lying around 5050km from the ce...   Apr 21 2011, 11:30 AM
|- - Paolo   QUOTE (AndyG @ Apr 21 2011, 01:30 PM) I g...   Apr 21 2011, 05:24 PM
|- - Greg Hullender   QUOTE (AndyG @ Apr 21 2011, 04:30 AM) I g...   Apr 22 2011, 04:57 AM
|- - Paolo   QUOTE (Greg Hullender @ Apr 22 2011, 06:5...   Apr 22 2011, 05:19 AM
||- - Alan Stern   QUOTE (Paolo @ Apr 22 2011, 06:19 AM) tha...   Apr 22 2011, 12:49 PM
|- - AndyG   QUOTE (Greg Hullender @ Apr 22 2011, 05:5...   Apr 22 2011, 09:36 PM
- - brellis   I'm confused. Does the L1 point of the Pluto s...   Apr 21 2011, 10:41 PM
- - nprev   Yes, it does; just like the Earth-Moon Lagrange po...   Apr 21 2011, 11:15 PM
- - Paolo   thanks Alan. I know I will spend a large part of t...   Apr 22 2011, 06:42 PM
- - Greg Hullender   So Andy and I worked through this offline, and we ...   Apr 29 2011, 02:57 AM
|- - AndyG   Never too keen on terms to the fifth power, and al...   May 1 2011, 07:01 PM
- - Greg Hullender   Grin. Terms in the denominator are just as bad as ...   May 2 2011, 01:39 AM
- - tasp   My thanks to the folks who can do the math. I am ...   May 3 2011, 07:05 PM
- - algorimancer   It was studying the mathematics of space travel th...   May 4 2011, 04:56 PM


Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 28th March 2024 - 11:17 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.