The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique

Details The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique

Mar 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999oleb...29..215b&link_type=abstract

Origins of Life and Evolution of the Biosphere, v. 29, Issue 2, p. 215-219 (1999).

Physics

11

Scientific paper

Having concluded that abiotic terrestrial mechanisms would have been ineffectual for the origin of terrestrial homochirality, we have proposed an alternative extraterrestrial scenario involving stereoselective ultraviolet photolysis of the racemic constituents of interstellar grain mantles by circularly polarized synchrotron radiation from neutron stars, followed by terrestrial accretion of the resulting chiral molecules via cometary impact. Recently L. Keszthelyi (1995) has reviewed a number of our arguments and advanced several erroneous calculations and conclusions purporting to negate them. We offer here points of rebuttal to Keszthelyi's criticisms, and support our inferences with recent data regarding indigenous enantiomeric excesses of L-amino acids in the Murchison meteorite.

Affiliated with

Also associated with

No associations

Rating

The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Extraterrestrial Origin of the Homochirality of Biomolecules - Rebuttal to a Critique will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-846080