2000MNRAS.312....2S

Query : 2000MNRAS.312....2S

2000MNRAS.312....2S - Mon. Not. R. Astron. Soc., 312, 2-32 (2000/February-2)

Broad-band and Hα surface photometry of the central regions of nearby active galaxies - I. Observations.

SANCHEZ PORTAL M., DIAZ A.I., TERLEVICH R., TERLEVICH E., ALVAREZ-ALVAREZ M. and ARETXAGA I.

Abstract (from CDS):

Broad-band V, R and I and narrow-band Hα CCD surface photometry of a sample of 24 active and three normal nearby galaxies is presented, in order to study their morphological and structural properties. This first paper presents the observations, data reduction and processing techniques used; the main characteristics of the central regions of the sample galaxies are derived from broad-band and Hα images; broad-band surface brightness and colour profiles are presented; based on the inspection of individual images and the examination of the radial variation of ellipticity and polar angle, the morphological class of the sample objects is revised: several objects previously classified as non-barred or unclassified are found to be barred galaxies. A high fraction (∼71per cent) of the objects that present any kind of nuclear activity are barred. This proportion is even higher (∼87per cent) if only Seyfert galaxies are considered. This result can reinforce the clues about the connection between bars and nuclear activity as a fuelling mechanism that can trigger and sustain nuclear activity.

Abstract Copyright: 2000, Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: fundamental parameters - galaxies: photometry

Simbad objects: 27

Full paper

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Number of rows : 27

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	NGC 513	Sy2	01 24 26.8053520680	+33 47 58.224514236		13.4	13.40			~	201	1
2	NGC 1023	AG?	02 40 24.0133575864	+39 03 47.663392896	10.91	10.35	9.35	7.83		~	689	2
3	NGC 1052	Bla	02 41 04.79849989	-08 15 20.7519527	11.84	11.41	10.47	10.71		~	1397	2
4	M 77	Sy2	02 42 40.7091669408	-00 00 47.859690204	9.70	9.61	8.87	10.1	9.9	~	4897	2
5	NGC 2146	AGN	06 18 37.710	+78 21 25.27	11.67	11.38	10.59			~	765	2
6	NGC 2273	Sy1	06 50 08.6691789600	+60 50 44.864645136		14.50	13.54			~	566	2
7	Z 207-33	Sy2	08 07 40.9957797624	+39 00 15.247008108		14.90	14.08			~	190	0
8	NGC 2841	LIN	09 22 02.6778711696	+50 58 35.737082868	10.43	10.09	9.22			~	1113	1
9	NGC 3227	Sy1	10 23 30.5765149296	+19 51 54.282206700		12.61	11.79			~	1807	2
10	NGC 3310	AGN	10 38 45.85707	+53 30 11.8940		12.45	12.15			~	809	1
11	NGC 3353	AGN	10 45 22.390	+55 57 37.36	12.90	13.25	12.79			~	378	1
12	NGC 3516	Sy1	11 06 47.4632200800	+72 34 07.298374656		13.12	12.40			~	1638	0
13	NGC 3982	Sy2	11 56 28.1445516072	+55 07 30.859586652		12.20	11.70	11.18		~	588	1
14	NGC 3998	Sy2	11 57 56.1334044408	+55 27 12.922443432		11.64	12.10	10.09		~	682	2
15	NGC 4151	Sy1	12 10 32.5759813872	+39 24 21.063527532		12.18	11.48			~	3938	2
16	M 106	Sy2	12 18 57.620	+47 18 13.39		9.14	8.41	8.11		~	2512	4
17	NGC 5077	rG	13 19 31.66962921	-12 39 25.0765176		13.87	12.85	11.30		~	312	1
18	M 51	Sy2	13 29 52.698	+47 11 42.93		9.26	8.36	8.40		~	4565	4
19	NGC 5347	Sy2	13 53 17.7984934128	+33 29 27.011618196		13.46	12.70			~	373	1
20	NGC 6217	AGN	16 32 39.2100852960	+78 11 53.487076092		14.37	13.88			~	320	0
21	NGC 6340	GiP	17 10 24.8346254376	+72 18 15.919996608		11.87	11.01			~	197	1
22	NGC 6384	AG?	17 32 24.2848390896	+07 03 37.531624968		13.2				~	313	0
23	NGC 6814	Sy1	19 42 40.5862186152	-10 19 25.108718844		15.33	14.21	11.7	11.3	~	866	0
24	NGC 7177	LIN	22 00 41.250	+17 44 17.22		12.2				~	204	1
25	NGC 7217	LIN	22 07 52.3984675584	+31 21 33.632293572		12.94	11.92			~	511	0
26	NGC 7469	Sy1	23 03 15.6	+08 52 26	12.60	13.00	12.34			~	2253	3
27	NGC 7479	Sy2	23 04 56.6432243448	+12 19 22.357387020	11.74	11.60	10.85	10.47	9.66	~	783	2

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