2001AJ....121.2895C

Query : 2001AJ....121.2895C

2001AJ....121.2895C - Astron. J., 121, 2895-2914 (2001/June-0)

Caltech faint galaxy redshift survey. XIII. Spectral energy distributions for galaxies in the region of the Hubble Deep Field North.

COHEN J.G.

Abstract (from CDS):

We introduce a new empirical function for modeling the spectral energy distributions (SEDs) of galaxies. We apply it to a sample of 590 galaxies in the region of the Hubble Deep Field (HDF) with z<1.5 using multicolor photometry with wide wavelength coverage combined with spectroscopic redshifts from our 93% complete R-selected redshift survey there. We find the following:

(1. ) As expected, galaxies with strong signs of recent star formation (i.e., those that show emission lines) have bluer continua in both the rest-frame ultraviolet and optical/near-infrared.
(2. ) The redder galaxies tend to be more luminous. Although galaxies with strong absorption lines and no emission features are ∼15% of the total sample with 0.25<z<0.8, they are ∼50% of the 25 most luminous galaxies in the sample at rest-frame R.
(3. ) The SEDs of actively star-forming galaxies become bluer in the mean in the rest-frame UV at higher redshifts, a trend that might arise from SED modeling errors. Aside from this, we discern no change with redshift in the relationship between SED characteristics and galaxy spectral type based on the strength of narrow emission and absorption features.
(4. ) Combining with similar work at higher and lower redshift, the bluest galaxies have indistinguishable SEDs in the rest-frame UV over the redshift regime of 0-3.
(5. ) There is no evidence in our R-selected sample that supports the existence of a substantial population of very dusty star-forming galaxies at z≲1.5.
(6. ) Our ability to predict the mid-IR flux using the UV, optical, and near-IR SEDs is limited.
(7. ) The potential accuracy of photometric redshifts is evaluated, bearing in mind that a break at 4000 Å must be detectable to within the errors of the photometry to assign a photo-z for galaxies in this redshift regime.
(8. ) The rest-frame K-band luminosity as a function of redshift clearly shows a gradual change in the population of various types of galaxies, with star-forming galaxies becoming both more luminous and a larger fraction of the total population at higher redshifts.
(9. ) The overall pattern of the L(K)-z relationship suggests that passive evolution at constant stellar mass is a good approximation to the actual behavior of at least the most luminous galaxies in this large sample of galaxies in the region of the HDF out to z∼1.5.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Galaxies: Fundamental Parameters - Galaxies: Luminosity Function, Mass Function - Surveys

VizieR on-line data: <Available at CDS (J/AJ/121/2895): table1.dat table6a.dat table6b.dat table7a.dat table7b.dat table8.dat>

Nomenclature: Tables 1, 7A, 7B: [C2001b] JHHMMSS.ss+DDMMSS.s N=519+47+2.

CDS comments: Tables 6A, 6B: [CHB2000] FMMSS.ss-MMSS.s and [CHB2000] HMMSS.ss-MMSS.s, galaxies with additional redshifts.

Simbad objects: 64

Full paper

View the references in ADS

Number of rows : 64

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	[CBH2004] 189.069397+62.21968	EmG	12 36 16.6558	+62 13 10.843	24.08	24.4753	24.50	23.7	23.5316	~	13	0
2	[C2001b] J123618.16+621257.6	G	12 36 18.0820	+62 12 58.159	24.50	25.2678	24.80	23.86	23.8657	~	9	0
3	GOODS J123621.67+621218.7	G	12 36 21.6747	+62 12 18.745	24.29	24.5239	24.50	23.8	23.0383	~	11	0
4	[CBH2004] 189.095001+62.18848	G	12 36 22.80396	+62 11 18.2410	25.0	24.9	24.7	24.0	23.7	~	3	0
5	GNS 2940	G	12 36 22.8291	+62 14 51.784	24.89	24.8807	24.61	23.8	23.3916	~	10	0
6	TKRS 5948	G	12 36 23.9726	+62 11 22.000	24.83	24.3874	24.70	24.0	23.3012	~	9	0
7	TKRS 5102	G	12 36 25.1251	+62 12 27.868	25.06	25.0106	24.68	23.9	23.5082	~	8	0
8	TKRS 5045	G	12 36 25.9469	+62 12 38.052	24.97	24.9630	24.68	23.9	23.6358	~	8	0
9	ACS-GC 50007924	Sy2	12 36 27.513	+62 10 26.50	26.57	25.9945	25.00	23.9	23.0984	~	30	0
10	GOODS J123629.65+621200.3	EmG	12 36 29.6544	+62 12 00.290	23.51	24.2531	24.67	23.5	23.7233	~	10	0
11	TKRS 6088	G	12 36 29.8047	+62 11 53.785	25.00	24.4131	24.30	23.5	23.2542	~	8	0
12	GOODS J123633.25+621050.4	G	12 36 33.2452	+62 10 50.371	24.11	24.3945	24.44	23.7	22.9890	~	12	0
13	GOODS J123636.64+621111.7	EmG	12 36 36.6405	+62 11 11.721	24.62	24.56	24.26	23.6	24.2749	~	13	0
14	GOODS J123637.07+621615.4	G	12 36 37.0662	+62 16 15.414	24.87	24.9205	24.88	24.0	23.3758	~	11	0
15	TKRS 8746	G	12 36 37.7542	+62 09 46.419	24.08	24.4049	24.24	23.7	23.3337	~	9	0
16	TKRS 6233	EmG	12 36 37.7623	+62 12 35.609	25.9	24.8118	24.96		23.8591	~	9	0
17	GOODS J123638.59+621253.7	G	12 36 38.5869	+62 12 53.708	24.78	24.8615	24.84	23.8	23.5253	~	9	0
18	TKRS 8508	G	12 36 39.4942	+62 10 16.437	24.32	24.4817	24.96	23.7	23.3532	~	9	0
19	CXOHDFN J123639.6+621230	Sy1	12 36 39.58	+62 12 30.4	24.9	24.2	23.9	24.40	23.83	~	38	0
20	GOODS J123641.45+621051.6	G	12 36 41.4491	+62 10 51.630	24.95	25.1007	24.81	23.9	22.8574	~	15	0
21	GNS 3627	G	12 36 42.3756	+62 16 22.448	25.08	25.2845	24.85	24.0	23.4020	~	17	0
22	GOODS J123642.84+621412.6	G	12 36 42.8436	+62 14 12.628	24.33	24.4726	24.56	23.8	23.4079	~	11	0
23	GOODS J123643.31+621333.0	G	12 36 43.3053	+62 13 32.965	24.30	24.6412	24.86	24.1	23.3767	~	13	0
24	JADES-GN NC 1080133	G	12 36 43.84	+62 12 41.8						~	16	0
25	TKRS 8427	EmG	12 36 44.4405	+62 10 53.137	25.06	24.2564	24.71	24.0	23.3595	~	13	0
26	GOODS J123644.68+621150.6	EmG	12 36 44.6783	+62 11 50.630		29.75	26.82		25.0214	~	19	0
27	TKRS 8182	EmG	12 36 45.2421	+62 11 08.892	24.04	24.3649	24.65	23.8	23.4136	~	14	0
28	[MTG2007] 23	EmG	12 36 45.3156	+62 11 43.185	24.96	24.8335	24.95	24.2	23.8483	~	26	0
29	CXOHDFN J123646.5+621048	EmG	12 36 46.64	+62 10 49.0	25.71	25.6150	25.08	24.1	23.1361	~	23	0
30	Cowie 82	G	12 36 47.1690	+62 13 42.226	24.26	24.4564	24.63	24.1	23.8977	~	30	0
31	TKRS 8914	G	12 36 48.5765	+62 10 49.279	24.18	24.4144	24.85	23.9	23.3351	~	8	0
32	MODS deep 2163	IG	12 36 49.4402	+62 13 16.985	24.62	24.5509	24.85	23.63	23.3833	~	24	0
33	NAME Hubble Deep Field	reg	12 36 49.5	+62 12 58						~	1967	1
34	TKRS 8891	G	12 36 49.7497	+62 11 07.114	24.66	23.7081	24.56	23.7	23.0441	~	10	0
35	GNS 2495	G	12 36 50.5368	+62 15 24.482	23.600	25.0354	24.86	24.1	23.9845	~	11	0
36	GOODS J123652.05+621059.5	G	12 36 52.0546	+62 10 59.460	24.41	24.4504	24.85	24.0	23.1642	~	14	0
37	GOODS J123652.29+620957.9	rG	12 36 52.36	+62 09 57.5	25.19	24.8443	24.35	23.5	22.9395	~	15	0
38	GOODS J123653.39+621026.2	G	12 36 53.3934	+62 10 26.160	23.79	23.9174	24.66	23.7	22.8825	~	13	0
39	GOODS J123656.07+621021.0	G	12 36 56.0693	+62 10 20.969	24.54	24.7984	24.75	24.1	23.2785	~	12	0
40	[CBH2004] 189.233841+62.22501	G	12 36 56.1205	+62 13 30.052	24.10	24.1939		23.80	23.5796	~	24	0
41	MODS deep 413	*	12 36 56.8723	+62 10 02.274		26.7335	25.46	24.7	22.3069	~	7	0
42	GOODS J123657.11+621511.6	EmG	12 36 57.1084	+62 15 11.609	24.43	24.7555	24.67	24.0	23.4091	~	15	0
43	TKRS 10058	EmG	12 36 57.32	+62 10 25.7	25.08	25.1352	24.54	2.383	22.9550	~	27	0
44	GOODS J123657.73+621041.2	G	12 36 57.708	+62 10 40.86	25.04	25.1977	24.60	23.8	22.7296	~	16	0
45	GOODS J123658.55+621553.6	G	12 36 58.5532	+62 15 53.648	25.28	25.1612	24.73	23.9	23.7312	~	9	0
46	GOODS J123659.88+620948.3	G	12 36 59.8751	+62 09 48.282	24.05	23.6455	24.04	23.4	22.9981	~	9	0
47	GOODS J123700.20+621615.6	G	12 37 00.18	+62 16 15.0	24.64	24.1008	24.21	23.3	22.8714	~	14	0
48	GOODS J123700.47+621002.1	G	12 37 00.4747	+62 10 02.128	24.01	24.3838	24.61	23.7	23.3068	~	12	0
49	GOODS J123700.77+621133.4	G	12 37 00.7704	+62 11 33.424	24.1	25.2729	25.0	23.6	24.4858	~	6	0
50	GOODS J123700.91+621028.5	G	12 37 00.9139	+62 10 28.497	24.04	24.0869	23.71	22.9	22.5205	~	12	0
51	GOODS J123701.12+621426.7	EmG	12 37 01.1235	+62 14 26.746	24.08	24.4039	24.75	23.8	23.3121	~	13	0
52	GOODS J123702.28+621033.1	G	12 37 02.2834	+62 10 33.055	24.28	24.9908	24.55	23.8	24.0960	~	9	0
53	GOODS J123702.53+621106.0	G	12 37 02.5280	+62 11 05.988	24.51	23.8963	24.53	23.8	23.4984	~	11	0
54	GOODS J123704.28+621000.0	G	12 37 04.2845	+62 10 00.019	23.77	24.1959		23.0	23.0746	~	12	0
55	[C2001b] J123704.27+621029.9	G	12 37 04.29	+62 10 30.3	24.6	24.4	23.8	23.6	23.4	~	2	0
56	GOODS J123706.05+621340.7	G	12 37 06.0531	+62 13 40.721	24.62	24.1057	24.58	23.6	23.2377	~	9	0
57	GOODS J123706.34+621057.8	G	12 37 06.3365	+62 10 57.775	23.89	24.2761	24.85	24.0	23.3277	~	12	0
58	GOODS J123706.84+621006.9	G	12 37 06.8448	+62 10 06.904	23.57	23.7601		23.4	22.7127	~	13	0
59	GNS 1445	G	12 37 09.6589	+62 11 19.535	24.22	24.4983	24.62	24.1	23.5035	~	16	0
60	GNS 1450	G	12 37 10.5565	+62 11 16.576	24.20	24.2748	24.77	24.0	23.3876	~	13	0
61	GOODS J123711.15+621257.2	G	12 37 11.1462	+62 12 57.234	24.16	24.4336	24.33	23.6	23.4092	~	11	0
62	GOODS J123712.16+621144.5	G	12 37 12.1632	+62 11 44.481		24.5135		23.4	23.2042	~	4	0
63	[CSB2005] 6	G	16 45 02.42	+46 26 27.0						~	136	0
64	NAME Local Group	GrG	~	~						~	9325	0

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