2000ApJ...542...18T

Query : 2000ApJ...542...18T

2000ApJ...542...18T - Astrophys. J., 542, 18-26 (2000/October-2)

Measurement of [O III] emission in Lyman-break galaxies.

TEPLITZ H.I., MALKAN M.A., STEIDEL C.C., McLEAN I.S., BECKLIN E.E., FIGER D.F., GILBERT A.M., GRAHAM J.R., LARKIN J.E., LEVENSON N.A. and WILCOX M.K.

Abstract (from CDS):

Measurements of [O III] emission in Lyman-break galaxies (LBGs) at z>3 are presented. Four galaxies were observed with narrowband filters using the near-IR camera on the Keck I 10 m telescope. A fifth galaxy was observed spectroscopically during the commissioning of NIRSPEC, the new infrared spectrometer on Keck II. The emission-line spectrum is used to place limits on the metallicity. Comparing these new measurements with others available from the literature, we find that strong oxygen emission in LBGs may suggest subsolar metallicity for these objects. The [O III] λ5007 line is also used to estimate the star formation rate (SFR) of the LBGs. The inferred SFRs are higher than those estimated from the UV continuum, and may be evidence for dust extinction.

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Journal keyword(s): Cosmology: Observations - Galaxies: Evolution - Galaxies: ISM - Galaxies: Starburst - Infrared: Galaxies

Nomenclature: Table 4: Westphal CCNN (Nos CC8, CC13, CC18). Table 4: [PKS98] 3C 324 CN (No. C6), [PKS98] B2 O902+343 ANN (No. M11).

Simbad objects: 16

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Number of rows : 16
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 SAS-LBG Q0000-D6 G 00 03 23.79 -26 02 48.5           ~ 18 0
2 SAS-LBG Q0201-oB13 G 02 03 49.23 +11 36 10.7           ~ 17 0
3 SAS-LBG B20902-M11 G 09 05 19.580 +34 09 03.96       24.19   ~ 5 0
4 SAS-LBG B20902-C6 G 09 05 20.58 +34 09 07.7           ~ 14 0
5 NVSS J090530+340756 rG 09 05 30.101 +34 07 56.90   24.0 23.800 23.500   ~ 163 1
6 NGC 4228 SBG 12 15 39.174 +36 19 36.80 10.63 10.30 9.93 9.74   ~ 1017 1
7 MODS deep 611 G 12 36 41.2544 +62 12 03.395 28.29 25.9152 25.01 23.94 25.0710 ~ 23 0
8 GOODS J123649.81+621249.2 G 12 36 49.8098 +62 12 49.190   26.6098 25.83 25.13 25.2221 ~ 19 0
9 SAS-LBG Westphal-C8 G 14 17 34.19 +52 23 04.6           ~ 2 0
10 SAS-LBG Westphal-C18 G 14 17 39.27 +52 25 58.6           ~ 2 0
11 SAS-LBG Westphal-C13 G 14 18 02.47 +52 24 36.4           ~ 5 0
12 NAME MS 1512-cB58 AGN 15 14 22.2751 +36 36 25.674     20.64   20.35 ~ 326 0
13 FIRST J151422.4+363620 rG 15 14 22.482 +36 36 21.08           ~ 146 1
14 SAS-LBG 3C324-C6 G 15 49 38.74 +21 29 17.5           ~ 3 0
15 3C 324.0 Sy1 15 49 49.170 +21 25 39.50   21.5       ~ 312 1
16 SAS-LBG DSF2237a-C2 G 22 40 08.29 +11 49 04.8           ~ 19 0

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