'Bow-Shock' Theory

Message boards : Science (non-SETI) : 'Bow-Shock' Theory

To post messages, you must log in.

AuthorMessage
Profile LynnProject Donor
Volunteer tester

Send message
Joined: 20 Nov 00
Posts: 10802
Credit: 20,624,555
RAC: 29,057
United States
Message 1230843 - Posted: 12 May 2012, 6:11:16 UTC

Mind bender.


Sun Slower Than Previously Thought: New Finding May Upend 'Bow-Shock' Theory


The sun is zipping through interstellar space more slowly than once thought, suggesting the giant shock wave long suspected of existing in front of the sun is not actually there, researchers say.

These new findings may influence what scientists know about high-energy cosmic rays that can endanger astronauts, they added. This will also influence the Voyagers.



Many stars have bow shock waves, as seen in these images. (NASA / ESA / JPL-Caltech / Goddard / SwRI / May 11, 2012)

http://en.wikipedia.org/wiki/Bow_shock_%28aerodynamics%29
Bow shock (aerodynamics)
From Wikipedia, the free encyclopedia
ID: 1230843 · Report as offensive
Profile Bob DeWoody
Avatar

Send message
Joined: 9 May 10
Posts: 2697
Credit: 779,776
RAC: 2,408
United States
Message 1230890 - Posted: 12 May 2012, 9:20:53 UTC

Well I won't stay up all night anymore worrying about this one.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
ID: 1230890 · Report as offensive
Profile tullioProject Donor
Volunteer tester

Send message
Joined: 9 Apr 04
Posts: 5715
Credit: 973,735
RAC: 2,697
Italy
Message 1230891 - Posted: 12 May 2012, 9:21:06 UTC

Once astronomer Halton Arp sent me a b/w photo of a galaxy with a bow shock he had made at Mount Palomar Obs.
Tullio
ID: 1230891 · Report as offensive
Profile LynnProject Donor
Volunteer tester

Send message
Joined: 20 Nov 00
Posts: 10802
Credit: 20,624,555
RAC: 29,057
United States
Message 1231448 - Posted: 13 May 2012, 6:10:08 UTC - in response to Message 1230891.  

Here is another link about the IBEX mission. Posted back in January.

"Alien" Particles Found Invading Our Solar System—A First

For the first time, a NASA spacecraft has directly observed "alien" particles that came from beyond our solar system, astronomers announced today.

The discovery not only gives us a glimpse of what exists in the so-called interstellar medium—the matter between stars—but also offers clues to the anatomy of our local galactic neighborhood.
ID: 1231448 · Report as offensive

Message boards : Science (non-SETI) : 'Bow-Shock' Theory


 
©2016 University of California
 
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.