(meteorobs) Deficit of southern meteor streams apparently confirmed

[Ed Cannon]

In advance I beg everyone's pardon for setting forth my ignorance, but I
still want to say that I wonder what part, if any, the differences in
human population centers, land masses versus oceans, and even differing
weather patterns between the northern and southern hemispheres might play
in possibly biasing the data.

Might it be possible to statistically isolate comparably situated
observing locations that could make observations on the same nights, and
so on, say at the equator, 30 north and south, 60 north and south, and
even the poles or nearly so, if possible -- something like that, just to
try to eliminate observing location biases?

Kind of just brainstorming from Austin, Texas, USA...  Maybe you all 
already did all of that.

Ed Cannon




----- Original Message -----
From: "dfischer at astro.uni-bonn.de" <dfischer at astro.uni-bonn.de>
To: meteorobs at meteorobs.org
Cc: 
Sent: Saturday, March 22, 2014 4:30 AM
Subject: (meteorobs) Deficit of southern meteor streams apparently confirmed

I'm at the annual meeting of the German meteor society -
http://meteoros.de/akm/seminar14/index.html - right now, and this morning
we learned about a new analysis of international video data that seems to
confirm with hard numbers that there is a significant deficit of radiants
in the southern sky: as you can see in S. Molau's summary slide
https://twitter.com/cosmos4u/status/447289852493434880/photo/1/large over
1/2 of all streams are located north of +30°N. Has this significant
hemispheric asymmetry also shown up in other data sets (e.g. radar) - and
if it's real: what could be the explanation?

Daniel Fischer in Dessau


_______________________________________________
meteorobs mailing list
meteorobs at meteorobs.org
http://lists.meteorobs.org/mailman/listinfo/meteorobs