RX J1548.9+0851, a fossil cluster? | Astronomy & Astrophysics (A&A)

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Table 3

Group luminosities, luminosity function and mass-to-light ratios.

		g′	r′	i′

(1)	L_tot = ∑ _iL_i	5.22	6.35	7.62
(2)		6.25	5.90	8.41
(3)	α	–1.55	–1.28	–1.44
(4)	M^∗ − 5log h	–20.49	–20.70	–21.63
(5)	M/L [M_⊙/L_⊙]	479	394	328
(6)	L_BG1/L_tot	0.26 (0.36)	0.29 (0.37)	0.30 (0.38)

Notes. Luminosities are given in 10¹¹ L_⊙.

⁽¹⁾

Total luminosity of all member galaxies (hatched histograms).

⁽²⁾

Total luminosity derived from the best-fit Schechter function.

^{(3, 4)}

Schechter function parameters.

⁽⁵⁾

Mass-to-light ratios are calculated with the mean group mass and the luminosities from (1).

⁽⁶⁾

Luminosity fraction of the central elliptical compared to the overall group luminosity. Numbers in parantheses refer to spectroscopically confirmed members only.

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