2007ApJS..173..597D

Query : 2007ApJS..173..597D

2007ApJS..173..597D - Astrophys. J., Suppl. Ser., 173, 597-606 (2007/December-0)

GALEX UV color relations for nearby early-type galaxies.

DONAS J., DEHARVENG J.-M., RICH R.M., YI S.K., LEE Y.-W., BOSELLI A., GIL DE PAZ A., BOISSIER S., CHARLOT S., SALIM S., BIANCHI L., BARLOW T.A., FORSTER K., FRIEDMAN P.G., HECKMAN T.M., MADORE B.F., MARTIN D.C., MILLIARD B., MORRISSEY P., NEFF S.G., SCHIMINOVICH D., SEIBERT M., SMALL T., SZALAY A.S., WELSH B.Y. and WYDER T.K.

Abstract (from CDS):

We use GALEX/optical photometry to construct color-color relationships for early-type galaxies sorted by morphological type. We have matched objects in the GALEX GR1 public release and the first IR1.1 internal release, with the RC3 early-type galaxies having a morphological type -5.5≤T←1.5, with mean error on T<1.5 and mean error on (B-V)_T<0.05. After visual inspection of each match, we are left with 130 galaxies with reliable GALEX pipeline photometry in the far-UV and near-UV bands. This sample is divided into ellipticals (-5.5≤T←3.5) and lenticulars (-3.5≤T←1.5). After correction for Galactic extinction, the color-color diagrams FUV-NUV versus (B-V)_Tc are plotted for the two subsamples. We find a tight anticorrelation between the FUV-NUV and (B-V)_Tc colors for ellipticals, with the UV color getting bluer when the (B-V)_Tc gets redder. This relationship very likely is an extension of the color-metallicity relationship in the GALEX NUV band. We suspect that the main source of the correlation is metal line blanketing in the NUV band. The FUV-NUV versus B-V correlation has larger scatter for lenticular galaxies; we speculate that this reflects the presence of low-level star formation. If the latter objects (i.e., those that are blue both in FUV-NUV and in B-V) are interpreted as harboring recent star formation activity, this would be the case for a few percent (∼4%) of ellipticals and ∼15% of lenticulars; this would mean about 10% of early-type galaxies have residual star formation in our full sample of 130 early-type galaxies. We also plot FUV-NUV versus the Mg₂ index and central velocity dispersion. We find a tight anticorrelation between FUV-NUV and the Mg₂index; we suspect that this reflects blanketing in the NUV band being correlated with overall metallicity. We find a marginal anticorrelation of FUV-V_T with Mg₂for elliptical galaxies.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - Galaxies: Photometry - Galaxies: Stellar Content - Ultraviolet: Galaxies

Simbad objects: 134

Full paper

View the references in ADS

Number of rows : 134

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2024	#notes
1	NGC 7808	Sy2	00 03 32.1315693168	-10 44 40.883874792		14.33	13.48			~	38	1
2	NGC 163	EmG	00 35 59.828	-10 07 18.11	14.13	13.64	12.70			~	38	1
3	NGC 179	Sy2	00 37 46.2637435992	-17 50 58.265537172		14.01		12.45		~	42	0
4	NGC 193	rG	00 39 18.5878961880	+03 19 52.605787764		14.3				~	141	1
5	NGC 204	GiG	00 39 44.2698651024	+03 17 58.436881692		14.6				~	22	0
6	M 32	GiG	00 42 41.82480	+40 51 54.6120	9.51	9.03	8.08			~	2154	2
7	M 31	AGN	00 42 44.330	+41 16 07.50	4.86	4.36	3.44			~	12643	1
8	IC 48	GiG	00 43 34.4532178416	-08 11 11.476105980		14.11		13.02		~	22	0
9	NGC 273	EmG	00 50 48.4534539240	-06 53 08.490746112		13		12.74		~	33	0
10	UGC 579	BiC	00 56 16.101	-01 15 19.77		14.40	14.45			~	78	1
11	NGC 307	GiG	00 56 32.5609001952	-01 46 19.166370780		14.1				~	70	0
12	NGC 311	GiG	00 57 32.7230472384	+30 16 50.654332632	14.57	14.00	13.00			~	53	1
13	NGC 315	LIN	00 57 48.88334410	+30 21 08.8119345	12.80	12.20	11.16	11.26		~	787	2
14	UGC 610	GiC	00 58 51.1025351688	+12 58 22.113808284		14.8				~	25	0
15	NGC 392	GiG	01 08 23.469	+33 08 01.26	14.17	13.68	12.71	12.28	11.50	~	62	1
16	NGC 410	GiG	01 10 58.9016492712	+33 09 07.053878052	13.08	12.52	11.48			~	155	2
17	NGC 426	LIN	01 12 48.6024953232	-00 17 24.733037364		16.33	15.58			~	85	0
18	NGC 430	EmG	01 12 59.9293102944	-00 15 09.003769560		13.6				~	67	0
19	NGC 471	rG	01 19 59.5958741136	+14 47 10.314654792		14.0				~	49	0
20	NGC 474	GiP	01 20 06.6870520512	+03 24 55.861973100	12.75	12.37	11.51	11.42	10.56	~	355	1
21	IC 1696	GiG	01 24 52.3456135920	-01 37 01.363136124		14.7				~	51	0
22	NGC 541	AG?	01 25 44.3069825040	-01 22 46.086331044	13.42	13.03	12.08			~	213	2
23	NGC 543	GiG	01 25 50.0052127008	-01 17 34.002691872		15.0				~	48	0
24	NGC 548	rG	01 26 02.5139750352	-01 13 32.205492444		15.1				~	77	0
25	NGC 568	EmG	01 27 57.0073498224	-35 43 03.461572272	14.09	13.43	12.59	12.01		~	45	1
26	ESO 113-50	G	01 29 26.7506997984	-61 27 52.581725388		13.90		12.41		~	17	0
27	NGC 584	Sy2	01 31 20.7231919800	-06 52 04.770287472	11.93	11.44	10.48			~	402	2
28	NGC 596	GiG	01 32 51.9046959816	-07 01 53.646821220		11.5				~	240	0
29	NGC 670	GiG	01 47 24.8554037808	+27 53 08.957582736		13.53	12.72			~	86	0
30	NGC 687	GiG	01 50 33.2281901976	+36 22 15.094840332		13.3	13.33			~	65	0
31	NGC 703	rG	01 52 39.5884468200	+36 10 16.905299520		14.5				~	109	0
32	NGC 777	Sy2	02 00 14.9065707744	+31 25 45.850721628	13.09	12.49	11.45			~	181	2
33	NGC 794	G	02 02 29.3326684032	+18 22 22.856052972		14.0				~	27	0
34	NGC 842	EmG	02 09 50.7902331144	-07 45 44.859522960	14.10	13.61	12.66			~	51	1
35	NGC 855	GiG	02 14 03.612	+27 52 37.82	14.19	13.56	12.75	12.40		~	229	1
36	NGC 990	GiG	02 36 18.206	+11 38 31.57		13.9				~	45	0
37	NGC 1023	AG?	02 40 24.0133575864	+39 03 47.663392896	10.91	10.35	9.35	7.83		~	660	2
38	NGC 1052	Sy2	02 41 04.79849989	-08 15 20.7519527	11.84	11.41	10.47	10.71		~	1299	2
39	NGC 1060	GiG	02 43 15.045	+32 25 30.04	13.71	13.00	11.81			~	111	1
40	NGC 1222	Sy2	03 08 56.7398731608	-02 57 18.587969280		13.3		13.0	13.2	~	193	0
41	NGC 1316	BL?	03 22 41.789	-37 12 29.52	9.81	9.15	8.53	7.66		~	1387	1
42	ESO 548-23	EmG	03 28 14.510	-17 25 11.24		14.38		13.82		~	55	0
43	NGC 1352	GiG	03 31 32.9853023352	-19 16 42.259710000		14.16		12.99		~	29	0
44	NGC 1379	GiP	03 36 03.9668625792	-35 26 28.547476800	12.17	12.04	10.91	10.60		~	265	1
45	NGC 1380	Sy2	03 36 27.590	-34 58 34.68	11.32	10.94	9.93	9.37		~	429	1
46	NGC 1381	GiP	03 36 31.6592184144	-35 17 42.739221912	12.90	12.47	11.50	11.02		~	254	1
47	ESO 358-33	GiG	03 36 47.5007323848	-34 44 22.739259552	13.63	13.36	12.41	12.00		~	143	1
48	NGC 1387	Sy2	03 36 57.0337458600	-35 30 23.675934060	12.18	11.75	10.69	10.16		~	262	1
49	NGC 1382	GiP	03 37 08.9722655064	-35 11 41.995386996	13.19	13.79	12.92	12.31		~	123	1
50	NGC 1389	EmG	03 37 11.7427350576	-35 44 45.873195000	12.80	12.39	11.50	10.99		~	198	1
51	NGC 1383	GiG	03 37 39.2243743704	-18 20 21.946706016	13.81	13.45	12.47	11.95		~	58	1
52	NGC 1399	BiC	03 38 29.083	-35 27 02.67	11.05	9.74	9.59	8.12		~	1570	1
53	NGC 1395	SyG	03 38 29.789	-23 01 39.69		10.71		8.99		~	279	0
54	NGC 1393	GiG	03 38 38.5764708384	-18 25 40.762595784	13.41	13.00	12.02	11.72		~	56	1
55	NGC 1404	GiP	03 38 51.917	-35 35 39.81	11.53	10.69	10.00	9.03		~	751	1
56	NGC 1394	GiG	03 39 06.9236093544	-18 17 32.446449996	14.28	13.66	12.81	12.36		~	36	1
57	NGC 1403	AG?	03 39 10.8433655832	-22 23 19.494248388		13.86		12.62		~	46	0
58	NGC 1402	Sy2	03 39 30.581	-18 31 37.26		13.96		12.88		~	38	0
59	NGC 1400	EmG	03 39 30.851	-18 41 17.25	12.48	12.01	10.96	10.45		~	299	1
60	NGC 1407	GiG	03 40 11.904	-18 34 49.36		10.64	9.67	9.13		~	585	1
61	NGC 1426	GiG	03 42 49.0997091480	-22 06 30.173615028		12.21	11.44	10.90		~	196	0
62	NGC 1439	GiG	03 44 49.9398454104	-21 55 14.341002960		12.23		10.86		~	172	0
63	NGC 1453	EmG	03 46 27.2307890592	-03 58 07.831476768		13		11.30		~	180	0
64	NGC 1510	GiP	04 03 32.640	-43 24 00.58	14.23	13.63	13.24	13.09		~	188	1
65	NGC 1521	GiG	04 08 18.9110259504	-21 03 07.337782908		12.31		10.73		~	117	0
66	NGC 1549	GiP	04 15 45.223	-55 35 32.50	11.22	10.48	9.79	9.08		~	240	1
67	NGC 1553	GiP	04 16 10.4697802536	-55 46 48.072797400	10.76	10.10	9.40	8.74		~	377	2
68	Mrk 11	GiG	07 49 24.9410887512	+74 20 03.104562192		14.4				~	42	0
69	NGC 2475	GiP	07 58 00.4472617680	+52 51 42.147834120		15				~	36	0
70	NGC 2656	BiC	08 47 53.0909809992	+53 52 34.225199616		15.0	15.0			~	48	2
71	NGC 2675	LIN	08 52 04.9602840024	+53 37 02.398216116	14.84	14.30	13.26			~	38	1
72	NGC 2693	GiG	08 56 59.2620417624	+51 20 50.738224092	13.45	12.84	11.88			~	126	1
73	NGC 2784	EmG	09 12 19.497	-24 10 21.36	12.02	10.99	10.16	9.30		~	141	1
74	NGC 2810	AG?	09 22 04.5014	+71 50 38.461		13.4				~	46	1
75	NGC 2950	AG?	09 42 35.1484995048	+58 51 04.584956904		11.8				~	206	0
76	NGC 3073	GiP	10 00 52.0678224264	+55 37 07.881619152	14.12	14.07	13.40			~	191	2
77	NGC 3158	rG	10 13 50.527	+38 45 53.68		13.4				~	118	0
78	NGC 3159	GiG	10 13 52.8333122376	+38 39 16.104406464		14.9				~	28	0
79	NGC 3163	GiG	10 14 07.1004987240	+38 39 09.199347192		14.4				~	37	0
80	NGC 3193	GiP	10 18 24.884	+21 53 38.32	12.29	11.83	10.88	12.19		~	289	1
81	NGC 3640	GiG	11 21 06.852	+03 14 05.15	11.89	11.36	10.44			~	275	3
82	NGC 3641	GiG	11 21 08.8111086864	+03 11 40.530956028		14.10	13.20			~	107	1
83	NGC 3923	GiG	11 51 01.783	-28 48 22.36	11.41	10.59	9.80	8.88		~	439	1
84	NGC 4150	GiG	12 10 33.655	+30 24 05.35	12.72	12.44	11.64			~	310	2
85	NGC 4278	LIN	12 20 06.8242	+29 16 50.722	11.54	11.09	10.16			~	946	2
86	NGC 4283	GiG	12 20 20.7691223880	+29 18 39.154727556	13.47	13.00	12.07			~	199	1
87	NGC 4292	LIN	12 21 16.4580185256	+04 35 44.558066724	13.49	13.09	12.21			~	97	1
88	M 84	Sy2	12 25 03.74333	+12 53 13.1393	12.67	12.09	10.49			~	1762	2
89	NGC 4379	GiG	12 25 14.7458757864	+15 36 26.755074576	13.05	12.63	11.72			~	226	1
90	NGC 4387	GiG	12 25 41.6768484264	+12 48 37.804615956	13.42	13.01	12.12		10.87	~	392	1
91	M 86	GiG	12 26 11.814	+12 56 45.49	10.32	9.83	8.90		7.50	~	1084	1
92	NGC 4435	GiG	12 27 40.503	+13 04 44.48	12.23	11.74	10.80			~	445	2
93	NGC 4458	GiP	12 28 57.5613938232	+13 14 30.946545276	13.27	12.93	12.07			~	413	2
94	NGC 4473	GiG	12 29 48.878	+13 25 45.55	11.60	11.16	10.20			~	644	1
95	NGC 4477	Sy2	12 30 02.1955766304	+13 38 11.543715888	11.98	11.38	10.42			~	396	2
96	NGC 4479	GiG	12 30 18.3716396496	+13 34 39.522722196	13.73	13.40	12.44			~	184	2
97	NGC 4503	GiP	12 32 06.2324986032	+11 10 34.960071396	12.66	12.05	11.07			~	215	1
98	IC 3481	LIN	12 32 52.2555913272	+11 24 15.678961632		14.8				~	39	0
99	NGC 4528	GiG	12 34 06.0685723920	+11 19 16.528093428	13.39	12.97	12.06			~	189	1
100	NGC 4546	Sy2	12 35 29.4931619736	-03 47 35.383858656	11.89	11.30	10.32			~	221	1
101	NGC 4551	GiP	12 35 37.9542692328	+12 15 50.284593432	13.49	12.97	12.02			~	354	1
102	M 89	LIN	12 35 39.80733343	+12 33 22.8308657	11.29	10.73	9.75			~	995	2
103	NGC 4578	GiG	12 37 30.5571349752	+09 33 18.241180344		12.9				~	280	0
104	NGC 4789	GiG	12 54 19.0044627120	+27 04 05.008348776		13.12	12.10			~	133	2
105	NGC 4798	AGN	12 54 55.1463700464	+27 24 45.945906048	14.71	14.20	13.17			~	77	1
106	ACO 1656	ClG	12 59 44.40	+27 54 44.9						~	4798	2
107	NGC 5329	GiG	13 52 10.0909792032	+02 19 30.387048276	13.88	13.37	12.43			~	46	1
108	NGC 5574	GiP	14 20 55.9688962704	+03 14 16.792454148	13.54	13.23	12.39			~	147	1
109	NGC 5576	GiP	14 21 03.691	+03 16 15.78	12.25	11.85	10.96			~	329	1
110	NGC 5638	GiP	14 29 40.3717451400	+03 13 59.987811648	12.57	12.14	11.20			~	243	2
111	NGC 5770	GiG	14 53 15.0128865696	+03 57 35.024994900	13.49	13.15	12.26			~	102	1
112	NGC 5813	LIN	15 01 11.2302420864	+01 42 07.141569696	12.00	11.45	10.46	10.06		~	637	1
113	NGC 6166	Sy2	16 28 38.24470063	+39 33 04.2335319		12.78	11.78			~	763	5
114	NGC 6359	GiG	17 17 52.9779028056	+61 46 50.866282308	14.08	13.56	12.64			~	42	1
115	NGC 6482	GiG	17 51 48.8339247888	+23 04 18.889271112	12.71	12.35	11.45			~	208	1
116	2MASS J20471928+0030335	*	20 47 19.2823083696	+00 30 33.639633108						~	1	1
117	NGC 6965	LIN	20 47 20.3679751752	+00 29 02.603085072		15.2				~	34	0
118	NGC 6964	AG?	20 47 24.3022751472	+00 18 02.971919412	14.51	14.00	12.99			~	87	1
119	NGC 6958	AG?	20 48 42.6064604520	-37 59 50.876997504	12.79	12.27	11.42	10.83		~	156	1
120	ESO 286-50	AG?	21 06 40.9392460224	-42 33 25.975350792		13.80		12.88		~	41	0
121	NGC 7117	AG?	21 45 47.0522460624	-48 25 13.548445212		13.57		11.33		~	41	0
122	NGC 7118	AG?	21 46 09.7599485496	-48 21 13.804072020		13.49		12.27		~	47	0
123	NGC 7168	GiG	22 02 07.3898439984	-51 44 35.064261456		12.86	11.86	11.47		~	59	0
124	NGC 7249	EmG	22 20 30.9660664392	-55 07 29.457679764		14.40				~	20	0
125	NGC 7252	EmG	22 20 44.7748209648	-24 40 41.909518200	12.26	12.46	12.06	11.57		~	703	1
126	IC 1445	EmG	22 25 30.3340906488	-17 14 35.749835736		13.65		12.21		~	30	0
127	NGC 7317	Sy2	22 35 51.8681746944	+33 56 41.758033380	15.10	14.57	13.60	12.72		~	174	1
128	NGC 7404	GiG	22 54 18.6026360784	-39 18 54.058195116		13.64		12.36		~	43	0
129	IC 1459	AGN	22 57 10.60682195	-36 27 43.9966421		10.96	11.85	9.34	10.3	~	624	2
130	NGC 7671	GiP	23 27 19.3401587400	+12 28 02.728494624		14.3				~	66	0
131	NGC 7675	GiG	23 28 05.9207591784	+08 46 06.691000476		14.8		13.20		~	61	1
132	NGC 7679	Sy2	23 28 46.6613717400	+03 30 41.013578196		13.2				~	270	1
133	NGC 7683	GiG	23 29 03.8180030520	+11 26 42.645888420		14.60				~	61	0
134	NGC 7736	AG?	23 42 25.7896939056	-19 27 08.233015608		13.65		12.21		~	32	0

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