Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.395.1657k&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 395, Issue 3, pp. 1657-1661.
Astronomy and Astrophysics
Astronomy
2
Methods: Statistical, Galaxies: Evolution, Galaxies: Fundamental Parameters, Galaxies: High-Redshift
Scientific paper
In a recent paper, Puech and co-workers compared K-band Tully-Fisher relations derived for nearby and distant galaxies, respectively. They concluded that the two relations differ, and deduced that there is evolution in the Tully-Fisher relations. The statistical comparison between the two regression lines is re-examined, and it is shown that the statistical test used gives non-significant results. It is argued that better results can be obtained by comparing the `inverse' Tully-Fisher relations, and it is demonstrated by two different methods that the nearby- and distant-sample relations do indeed differ at a very high significance level. One of the statistical methods described is non-parametric, and can be applied very generally to compare linear regressions from two different samples.
Koen Chris
Lombard Fred
No associations
LandOfFree
Is there evolution in the infrared Tully-Fisher relation? Comparing two linear regressions 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 Is there evolution in the infrared Tully-Fisher relation? Comparing two linear regressions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Is there evolution in the infrared Tully-Fisher relation? Comparing two linear regressions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-814744