Testing the Cosmic Coincidence Problem and the Nature of Dark Energy

Details Testing the Cosmic Coincidence Problem and the Nature of Dark Energy Testing the Cosmic Coincidence Problem and the Nature of Dark Energy

2001-05-18

arxiv.org/abs/astro-ph/0105317v1

Phys.Rev.Lett.87:141302,2001

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, revtex4, submitted to PRL

Scientific paper

10.1103/PhysRevLett.87.141302

Dark energy models which alter the relative scaling behavior of dark energy and matter could provide a natural solution to the cosmic coincidence problem - why the densities of dark energy and dark matter are comparable today. A generalized class of dark energy models is introduced which allows non-canonical scaling of the ratio of dark matter and dark energy with the Robertson-Walker scale factor a(t). Upcoming observations, such as a high redshift supernova survey, application of the Alcock-Paczynski test to quasar pairs, and cluster evolution, will strongly constrain the relative scaling of dark matter and dark energy as well as the equation of state of the dark energy. Thus, whether there actually is a coincidence problem, and the extent of cosmic coincidence in the universe's recent past can be answered observationally in the near future. Determining whether today is a special time in the history of the universe will be a SNAP.

Affiliated with

Also associated with

No associations

Rating

Testing the Cosmic Coincidence Problem and the Nature of Dark Energy 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 Testing the Cosmic Coincidence Problem and the Nature of Dark Energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing the Cosmic Coincidence Problem and the Nature of Dark Energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-197073