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An AzTEC 1.1mm survey of the GOODS-N field I: maps, catalogue, and source statistics
ITZIAR ARETXAGA MENDEZ
David Hughes
Acceso Abierto
Atribución-NoComercial-SinDerivadas
We have conducted a deep and uniform 1.1mm survey of the GOODS-N field with AzTEC on the James Clerk Maxwell Telescope (JCMT). Here we present the first results from this survey including maps, the source catalogue, and 1.1mm number-counts. The results presented here were obtained from a 245 arcmin² region with near uniform coverage to a depth of 0.96–1.16mJy beamˉ¹. Our robust catalogue contains 28 source candidates detected with S/N≥3.75, only ~1–2 of which are expected to be spurious detections. Of these source candidates, 8 are also detected by SCUBA at 850μm in regions where there is good overlap between the two surveys. The major advantage of our survey over that with SCUBA is the uniformity of coverage. We calculate number counts using two different techniques: the first using a frequentist parameter estimation, and the second using a Bayesian method. The two sets of results are in good agreement. We find that the 1.1mm differential number counts are well described in the 2–6mJy range by the functional form dN/dS = N′(S′/S)exp(−S/S′) with fitted parameters S′= 1.25 ± 0.38mJy and dN/dS = 300 ± 90mJyˉ¹ degˉ² at 3 mJy.
Monthly notices of the royal astronomical society
2008
Artículo
Inglés
Estudiantes
Investigadores
Público en general
Perera, T. A., et al., (2008). An AzTEC 1.1mm survey of the GOODS-N field I: maps, catalogue, and source statistics, Monthly notices of the royal astronomical society, Monthly notices of the royal astronomical society, Vol.391(3):1227-1238
ASTRONOMÍA Y ASTROFÍSICA
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Aparece en las colecciones: Artículos de Astrofísica

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