2019ApJ...872L...4A

Query : 2019ApJ...872L...4A

2019ApJ...872L...4A - Astrophys. J., 872, L4-L4 (2019/February-2)

The distance and motion of the Maffei Group.

ANAND G.S., TULLY R.B., RIZZI L. and KARACHENTSEV I.D.

Abstract (from CDS):

It has recently been suggested that the nearby galaxies Maffei 1 and 2 are farther 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 5.73 ± 0.40 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 -128 ± 33 km s–1. The negative peculiar velocities of both of these distinct galaxy groups are likely the manifestation of void expansion from the direction of Perseus-Pisces.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): distance scale - galaxies: distances and redshifts - galaxies: groups: individual: Maffei - galaxies: stellar content - Hertzsprung-Russell and C-M diagrams

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LEDA 2807102 G 01 07 32.4 +51 26 26   17.1       ~ 28 0
2 LEDA 2807103 LSB 01 34 51.5 +52 05 30   17.0       ~ 38 0
3 LEDA 168300 AG? 02 24 34.20 +56 00 43.0   16.2       ~ 31 0
4 LEDA 2807107 G 02 27 26.9 +57 29 17   17.8       ~ 23 0
5 NAME Psc-Per Supercluster SCG 02 33.2 +41 37           ~ 444 1
6 LEDA 166068 G 02 35 35.7 +59 22 44   19.5       ~ 37 0
7 UGCA 34 GiG 02 36 35.4662282832 +59 39 17.507008584   17       ~ 198 2
8 UGCA 39 GiG 02 41 55.092 +59 36 14.73   16       ~ 360 1
9 LEDA 101304 G 02 54 08.47 +59 00 19.1   20.5       ~ 36 0
10 2MASX J02554290+5851394 GiG 02 55 42.903 +58 51 39.42   19.8       ~ 32 0
11 NAME Cas 2 GiG 02 56 51.6359356200 +58 54 42.136879608           ~ 84 0
12 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
13 NAME IC 342 Group GrG 03 48 42 +68 00.8           ~ 102 1
14 NAME Maffei Group GrG 03 49 +68.0           ~ 52 0
15 NAME Local Void vid 18 38 +18.0           ~ 234 0
16 NAME Local Group GrG ~ ~           ~ 9325 0

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