The Distance and Motion of the Maffei Group
Astrophysics of Galaxies
2019-02-27 v2
Abstract
It has recently been suggested that the nearby galaxies Maffei 1 and 2 are further in distance than previously thought, such that they no longer are members of the same galaxy group as IC 342. We reanalyze near-infrared photometry from the Hubble Space Telescope, and find a distance to Maffei 2 of Mpc. With this distance, the Maffei Group lies 2.5 Mpc behind the IC 342 Group and has a peculiar velocity toward the Local Group of km/s. The negative peculiar velocities of both of these distinct galaxy groups are likely the manifestation of void expansion from the direction of Perseus-Pisces.
Cite
@article{arxiv.1901.05981,
title = {The Distance and Motion of the Maffei Group},
author = {Gagandeep S. Anand and R. Brent Tully and Luca Rizzi and Igor D. Karachentsev},
journal= {arXiv preprint arXiv:1901.05981},
year = {2019}
}
Comments
6 pages, 2 figures, Accepted to ApJL (replacement adjusts/fixes luminosities in table 1)