Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2009-09-23
Evolutionary Biology. Concept, Modeling, and Application, Pontarotti, Pierre (Ed.) (2009) 363-378
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
Talk given at the "12th Evolutionary Biology Meeting" held in Marseille, France, Sept. 24-26, 2008
Scientific paper
10.1007/978-3-642-00952-5
The Hubble tuning fork diagram, based on morphology and established in the 1930s, has always been the preferred scheme for classification of galaxies. However, the current large amount of multiwavelength data, most often spectra, for objects up to very high distances, asks for more sophisticated statistical approaches. Interpreting formation and evolution of galaxies as a ?transmission with modification' process, we have shown that the concepts and tools of phylogenetic systematics can be heuristically transposed to the case of galaxies. This approach, which we call ?astrocladistics', has successfully been applied on several samples. Many difficulties still remain, some of them being specific to the nature of both galaxies and their diversification processes, some others being classical in cladistics, like the pertinence of the descriptors in conveying any useful evolutionary information.
No associations
LandOfFree
Galaxies and Cladistics 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 Galaxies and Cladistics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Galaxies and Cladistics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-181618