Astronomy and Astrophysics – Astrophysics
Scientific paper
1996-12-24
ApJ, 486, 32 (1997)
Astronomy and Astrophysics
Astrophysics
20 latex pages and 8 figures. Final version
Scientific paper
10.1086/304529
A formalism that simultaneously searches for the monopolar and dipolar peculiar velocities is presented. The formalism is applied to (1) the Mark III catalogue, (2) Lauer and Postman's Abell cluster catalogue, and (3) Riess et al.'s Type Ia supernova sample. The emphasis is drawn to the monopolar peculiar velocities, i.e., peculiar Hubble flows, within these samples. The samples show inconsistent peculiar Hubble flows within a depth of $\sim 60h^{-1}$ Mpc. Beyond a depth of $\sim 80h^{-1}$ Mpc, the Hubble flows of all samples converge to the global Hubble flow to better than 10% at the $2\sigma$ level. The results are compared with theoretical predictions. They at face value disfavor models predicting smaller peculiar velocities such as the tilted Cold Dark Matter model. Limitations of the catalogues are discussed, so are ways to improve the catalogues so that an accurate map of Hubble flows in our local universe can be drawn and be compared with theoretical predictions.
No associations
LandOfFree
Peculiar Hubble Flows in Our Local Universe 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 Peculiar Hubble Flows in Our Local Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Peculiar Hubble Flows in Our Local Universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-577256