A combined photometric and kinematic recipe for evaluating the nature of bulges using the CALIFA sample

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Table 1

Overview of bulge classification.


ID	NED name	B/T	n _b	C _20,50	∇σ	Kormendy rel.	Classification
			≤ 1.5	≥ 0.4	≥ −0.18	low-outlier
(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)

2	UGC 00005	0.01	ps	ps	cl	ps	pseudo
3	NGC 7819	0.12	ps	cl	cl	ps
6	NGC 7824	0.38	cl	cl	cl	cl	classical
8	NGC 0001	0.41	cl	cl	cl	cl	classical
20	NGC 0160	0.29	cl	cl	cl	cl	classical
31	NGC 0234	0.04	ps	ps	ps	ps	pseudo
33	NGC 0257	0.10	cl	cl	ps	cl	classical
43	IC 1683	0.12	ps	cl	cl	cl	classical
45	NGC 0496	bulgeless	bulgeless	ps	ps	bulgeless	bulgeless
47	NGC 0517	0.55	cl	cl	ps	cl	classical
119	NGC 1167	0.23	cl	cl	cl	cl	classical
147	NGC 2253	0.08	cl	cl	cl	cl	classical
275	NGC 2906	0.14	cl	ps	ps	ps	pseudo
277	NGC 2916	0.07	cl	ps	cl	cl	classical
311	NGC 3106	0.30	cl	cl	cl	cl	classical
489	NGC 4047	0.03	cl	ps	ps	ps	pseudo
548	NGC 4470	bulgeless	bulgeless	ps	ps	bulgeless	bulgeless
580	NGC 4711	0.02	ps	ps	ps	ps	pseudo
607	UGC 08234	0.58	cl	cl	cl	cl	classical
611	NGC 5016	0.01	ps	ps	ps	ps	pseudo
715	NGC 5520	0.26	ps	cl	ps	cl
748	NGC 5633	bulgeless	bulgeless	ps	ps	bulgeless	bulgeless
768	NGC 5732	0.04	ps	ps	no data	ps	pseudo
769	UGC 09476	0.03	ps	ps	ps	ps	pseudo
778	NGC 5784	0.39	cl	cl	ps	cl	classical
821	NGC 6060	0.06	ps	ps	ps	cl	pseudo
823	NGC 6063	0.01	ps	ps	ps	ps	pseudo
826	NGC 6081	0.35	cl	cl	cl	cl	classical
836	NGC 6155	0.01	ps	ps	ps	ps	pseudo
849	NGC 6301	0.01	ps	ps	cl	ps	pseudo
850	NGC 6314	0.33	cl	cl	cl	cl	classical
856	IC 1256	0.03	cl	ps	ps	ps	pseudo
858	UGC 10905	0.52	cl	cl	cl	cl	classical
874	NGC 7025	0.44	cl	cl	cl	cl	classical
877	UGC 11717	0.20	cl	cl	no data	cl	classical
886	NGC 7311	0.32	cl	cl	cl	cl	classical
889	NGC 7364	0.45	cl	cl	ps	cl	classical
891	UGC 12224	0.02	ps	ps	ps	ps	pseudo
898	NGC 7489	0.02	ps	ps	cl	ps	pseudo
912	NGC 7623	0.49	cl	cl	cl	cl	classical
913	NGC 7625	0.14	ps	cl	ps	ps	pseudo
915	NGC 7653	0.27	cl	cl	cl	cl	classical
916	NGC 7671	0.33	cl	cl	cl	cl	classical
917	NGC 7683	0.57	cl	cl	cl	cl	classical
923	NGC 7711	0.47	cl	cl	cl	cl	classical

Notes. (1) CALIFA ID; (2) NED name; (3) bulge-to-total light ratio, for reference. We list four different bulge classification criteria in Cols. 4–7: (4) bulge Sérsic index; (5) concentration index; (6) central velocity dispersion gradient; (7) Kormendy relation. (8) Final classification: in the last column we assign each bulge a final classification if and only if at least three out of four criteria are in agreement. With “pseudo” we are referring to the inner disc of galaxies built through secular evolution, as explained in more detail in the text. The second line of the head of the table shows the boundaries that we have defined to demarcate pseudobulges. If a value of a specific cell in Cols. 4–7 is within these limits it is annotated as “ps”, otherwise it is “cl”, which refers to “pseudobulge” and “classical bulge”, respectively. The 3 bulgeless galaxies are annotated in Cols. 3, 4 and 7. Two galaxies have no kinematic data, and thus no value in Col. 6.

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