On time dilation in quasar light curves

Details On time dilation in quasar light curves On time dilation in quasar light curves

2010-04-11

arxiv.org/abs/1004.1824v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

8 pages, 5 figures. Accepted for publication in MNRAS. Published online 9 April 2010.

Scientific paper

10.1111/j.1365-2966.2010.16581.x

In this paper we set out to measure time dilation in quasar light curves. In order to detect the effects of time dilation, sets of light curves from two monitoring programmes are used to construct Fourier power spectra covering timescales from 50 days to 28 years. Data from high and low redshift samples are compared to look for the changes expected from time dilation. The main result of the paper is that quasar light curves do not show the effects of time dilation. Several explanations are discussed, including the possibility that time dilation effects are exactly offset by an increase in timescale of variation associated with black hole growth, or that the variations are caused by microlensing in which case time dilation would not be expected.

Affiliated with

Also associated with

No associations

Rating

On time dilation in quasar light curves 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 On time dilation in quasar light curves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On time dilation in quasar light curves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-187063