Time dilation and quasar variability

Authors
Hawkins, MRS
Citation
Mrs. Hawkins, Time dilation and quasar variability, ASTROPHYS J, 553(2), 2001, pp. L97-L100
Citations number
12
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
553
Issue
2
Year of publication
2001
Part
2
Pages
L97 - L100
Database
ISI
SICI code
0004-637X(20010608)553:2<L97:TDAQV>2.0.ZU;2-T
Abstract
The timescale of quasar variability is widely expected to show the effects of time dilation. In this Letter, we analyze the Fourier power spectra of a large sample of quasar light curves to look for such an effect. We find th at the timescale of quasar variation does not increase with redshift, as re quired by time dilation. Possible explanations of this result all conflict with widely held consensus in the scientific community.