SIMBAD references

We study the properties of the fossil cluster RX J1416.4+2315 through g'- and i'-band imaging and spectroscopy of 25 member galaxies. The system is at a mean redshift of 0.137 and has a velocity dispersion of 584 km.s^–1. Superposed onto one quadrant of the cluster field is a group of five galaxies at a mean redshift of 0.131, which, if included as part of the cluster, increases the velocity dispersion to 846 km.s^–1. The central object of RX J1416.4+2315 is a normal elliptical galaxy with no cD envelope. The luminosity function of the system, estimated by the number counts and statistical background correction in the range -22.6<M_g'←16.6, is well fitted by a Schechter function with M^*_g'=-21.2±0.8 and α=-1.2±0.2 (H₀=70 km.s^–1.Mpc^–1, Ω_M=0.3, Ω_Λ=0.7). The luminosity function obtained from the spectroscopically confirmed members in both the g' and i' bands agrees with the photometric results. The mass of the system, M∼1.9x10¹⁴ h^–1₇₀M_☉, its M/L of 445 h₇₀M_☉L^–1_B☉, and L_Xof 11x10⁴³ h^–2₇₀ ergs.s^–1 (bolometric) suggest that this system is the second example of a known fossil cluster, after RX J1552.2+2013, confirmed in the literature.