2006ApJ...647L...9F

Query : 2006ApJ...647L...9F

2006ApJ...647L...9F - Astrophys. J., 647, L9-L12 (2006/August-2)

Spitzer 70 micron source counts in GOODS-North.

FRAYER D.T., HUYNH M.T., CHARY R., DICKINSON M., ELBAZ D., FADDA D., SURACE J.A., TEPLITZ H.I., YAN L. and MOBASHER B.

Abstract (from CDS):

We present ultradeep Spitzer 70 µm observations of GOODS-North (Great Observatories Origins Deep Survey). For the first time, the turnover in the 70 µm Euclidean-normalized differential source counts is observed. We derive source counts down to a flux density of 1.2 mJy. From the measured source counts and fluctuation analysis, we estimate a power-law approximation of the faint 70 µm source counts of dN/dS∝S–1.6, consistent with that observed for the faint 24 µm sources. An extrapolation of the 70 µm source counts to zero flux density implies a total extragalactic background light (EBL) of 7.4±1.9 nW./m2/sr. The source counts above 1.2 mJy account for about 60% of the estimated EBL. From fluctuation analysis, we derive a photometric confusion level of σc=0.30±0.15 mJy (q=5) for the Spitzer 70 µm band.

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Journal keyword(s): Cosmology: Observations - Galaxies: Evolution - Galaxies: High-Redshift - Infrared: Galaxies

Simbad objects: 1

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Number of rows : 1
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 NAME GOODS-N Field reg 12 36 55.0 +62 14 15           ~ 1364 1

Query : 2006ApJ...647L...9F

Basic data :
NAME GOODS-N Field -- Region defined in the Sky
Other object types: otypes_help 		reg ()
ICRS coord. (ep=J2000) : 		12 36 55.0 +62 14 15 [ ] D 2011ApJ...732..126M
FK4 coord. (ep=B1950 eq=1950) : 		12 34 41.1 +62 30 45 [ ]
Gal coord. (ep=J2000) : 		125.8654 +54.8080 [ ]
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Identifiers (4) :
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NAME GOODS-N Field NAME GOODS North Field NAME GOODS Northern Field NAME GOODS-North Field

References (1364 between 1850 and 2026) (Total 1364)
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