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07 February 2013

Binary Asteroid May Have Wiped out Dinosaurs

Binary Asteroid May Have Wiped out Dinosaurs

Double asteroid trouble may have wiped out dinosaurs
(The asteroid theory of dinosaur extinction gets a new
twist as scientists look into what may have been a
twin asteroid impact) by Amanda Kooser Feb. 4, 2013
http://news.cnet.com/8301-17938_105-57567486-1/double-asteroid-trouble-may-have-wiped-out-dinosaurs/

Dinosaur-killing asteroid was a twin terror by Colin Barras,
New Scientist, February 2013
http://www.newscientist.com/article/dn23126-dinosaurkilling-asteroid-was-a-twin-terror.html

Research group suggests Chicxulub crater may have
been caused by binary asteroids, Phys.org, Feb. 2013
http://phys.org/news/2013-02-group-chicxulub-crater-binary-asteroids.html

The paper is:

Miljkovic, K., G. S. Collins, S. Mannick, P. A. Bland, 2013,
Morphology and population of binary asteroid impact
craters. Earth and Planetary Science Letters. vol. 363,
pp. 121–132. dx.doi.org/10.1016/j.epsl.2012.12.033
http://www.sciencedirect.com/science/article/pii/S0012821X12007194

A related paper is:

Bottke, H. J., and H. J. Melosh, 1996, Binary Asteroids
and the Formation of Doublet Craters. Icaerus.
vol. 124, pp. 372–391. PDF file at:
http://www.boulder.swri.edu/~bottke/Reprints/Bottke_Binary_Icarus_1996.pdf

Yours,

Paul H.

For this writing and All of The E-Pistles of Paul by Paul Heinrich see:
http://theepistlesofpaul.blogspot.jp/

2013 THE Year of Meteors, Asteroids, Comets, and MORE!!

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