Interstellar Interlopers, Coming in from the great beyond |
Interstellar Interlopers, Coming in from the great beyond |
![]()
Post
#1
|
|
Member ![]() ![]() ![]() Group: Members Posts: 541 Joined: 17-November 05 From: Oklahoma Member No.: 557 ![]() |
They finally found a chunk of something coming into the Solar System. Something much bigger than cosmic rays or dust particles.
Asteroid/comet in hyperbolic trajectory |
|
|
![]() |
![]()
Post
#2
|
|
Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 ![]() |
I wonder, how this observation of an extrasolar asteroid connects to interstellar dust, as observed by Ulysses in 1992.
All models I've been coming across ignore the presence of interstellar grains much larger than one micron. So, there arise two straightforward questions: - Can the interstellar asteroid be regarded as a particular large dust grain of a population of interstellar dust? and - Do explanations of the grain size distribution of interstellar dust ignore interstellar asteroids as a significant supply of material? Taken together, needs the "IDGSDF" to be extended to the grain size of asteroids in order to obtain a proper model of interstellar dust? |
|
|
![]()
Post
#3
|
|
![]() Member ![]() ![]() ![]() Group: Members Posts: 684 Joined: 24-July 15 Member No.: 7619 ![]() |
So, there arise two straightforward questions: - Can the interstellar asteroid be regarded as a particular large dust grain of a population of interstellar dust? and - Do explanations of the grain size distribution of interstellar dust ignore interstellar asteroids as a significant supply of material? Taken together, needs the "IDGSDF" to be extended to the grain size of asteroids in order to obtain a proper model of interstellar dust? One of the more interesting things I'd come across about fine dust, is that within the solar system, magnetic field effects can be much stronger than gravity or radiation. That does suggest that, depending on what sort of dust you have, (i.e. A) whether the grains have an internal magnetic field, B ) they are susceptible to having a field induced, C) they're non magnetic) you could get some interesting magnetic attraction effects. |
|
|
![]() ![]() |
![]() |
Lo-Fi Version | Time is now: 23rd June 2024 - 10:18 PM |
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE 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. |
![]() |