A study of the remarkable galaxy system AM 546-324 (the core of Abell S0546)

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Table 1

Basic properties of the principal galaxies of the system AM 0546-324.

Parameter	2MFGC 04711	Shadowy galaxy	AM 0546-324 (NED02)	Ref.

RA (2000)	05 48 34.1	05 48 34.7	05 48 35.1	this work
Dec (2000)	–32 39 30.9	–32 39 46.2	–32 40 01.0	this work
Morphological classification	Elliptical	Cd?	Elliptical	this work
z	0.0693	0.0696	0.0718	this work
V (km s^-1) (a)	20 057 ± 10	20 141 ± 10	20 754 ± 10	this work
V (km s^-1) (b)	20 793 ± 10	20 880 ± 10	21 526 ± 10	this work

z	0.0692		0.0721	NED (q)
V (km s^-1)	20 749 ± 40		21 615 ± 26	NED (q)
Magnitude	15.0 R			NED
Other designations	2MASX J05483415-3239306		2MASX J05483518-3240006	NED

Distance (Mpc)	292.6	293.8	303.0	this work
Distance (Mpc)	293.0		305.0	NED
σ_v (km s^-1)	312	365	197	this work
Mass (lower limit)	1.63 × 10¹¹ M_⊙	5.24 × 10¹¹ M_⊙	1.60 × 10¹¹ M_⊙	this work
U-shaped base (r)	20		154	this work
Major axis (lower limit) (r)	942	2173	853	this work
J − H	0.404		0.732	NED
H − K	0.142		−0.050	NED
J − K	0.546		0.641	NED

Notes. (a): extracted for high velocities (Lang 1999), see also Lindengren & Dravins (2003); (b): non-relativistic velocity using the standard formula (Lang 1999); (r): measurements on the Gemini/GMOS-S r-G0303-filter; (q): original data from Quintana & Ramírez (1995).

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