PECULIAR MOTIONS IN SUPERCLUSTERS - PERSEUS-PISCES

Authors
BAFFA C CHINCARINI G HENRY RBC MANOUSOYANAKI J
Citation
C. Baffa et al., PECULIAR MOTIONS IN SUPERCLUSTERS - PERSEUS-PISCES, Astronomy and astrophysics, 280(1), 1993, pp. 20-32
Citations number
33
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
280
Issue
1
Year of publication
1993
Pages
20 - 32
Database
ISI
SICI code
0004-6361(1993)280:1<20:PMIS-P>2.0.ZU;2-6
Abstract
We discuss the near infrared observations obtained for a set of 81 gal axies in the region of the Perseus-Pisces supercluster. From these, in conjunction with the 21 cm data of the Arecibo sample, we estimate th e peculiar velocities via the Tully Fisher relation and the model of t he local perturbations as derived by Han and Mould. From the data disc ussed we find that the supercluster main structure is shrinking. To ex plain the size and velocities observed the model requires, for the sup ercluster. a mean overdensity of about DELTArho/rho = 9 which correspo nds to a total mass of 10(16) solar masses to cover an extension of ab out 100 Mpc.