| dc.creator | ITZIAR ARETXAGA MENDEZ | |
| dc.creator | David Hughes | |
| dc.date | 2008 | |
| dc.date.accessioned | 2023-07-25T16:22:51Z | |
| dc.date.available | 2023-07-25T16:22:51Z | |
| dc.identifier | http://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1027 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7806226 | |
| dc.description | We present a 1.1mm wavelength imaging survey covering 0.3 deg² in the COSMOS field. These data, obtained with the AzTEC continuum camera on the James Clerk Maxwell Telescope, were centred on a prominent large-scale structure overdensity which includes a rich X-ray cluster at z ≈0.73. A total of 50 mm-galaxy candidates, with a significance ranging from 3.5 to 8.5σ, are extracted from the central 0.15 deg² area which has a uniform sensitivity Of ~1.3 mJy beamˉ¹. 16 sources are detected with S/N ≥ 4.5, where the expected false-detection rate is zero, of which a surprisingly large number (9) have intrinsic (deboosted) fluxes ≥5 mJy at 1.1 mm. Assuming the emission is dominated by radiation from dust, heated by a massive population of young, optically obscured stars, then these bright AzTEC sources have far-infrared luminosities >6 ×10¹² Lꙩ and star formation rates >1100Mꙩ yrˉ¹. Two of these nine bright AzTEC sources are found towards the extreme peripheral region of the X-ray cluster, whilst the remainder are distributed across the larger scale overdensity.We describe the AzTEC data reduction pipeline, the source-extraction algorithm, and the characterization of the source catalogue, including the completeness, flux deboosting correction, false-detection rate and the source positional uncertainty, through an extensive set of Monte Carlo simulations. We conclude with a preliminary comparison, via a stacked analysis, of the overlapping MIPS 24-μm data and radio data with this AzTEC map of the COSMOS field. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.publisher | Monthly notices of the royal astronomical society | |
| dc.relation | citation:Scott, K. S., et al., (2008). AzTEC millimetre survey of the COSMOS field – I. Data reduction and source catalogue, Monthly notices of the royal astronomical society. Vol.385(4): 2225–2238 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/21 | |
| dc.subject | info:eu-repo/classification/cti/21 | |
| dc.title | AzTEC millimetre survey of the COSMOS field – I. Data reduction and source catalogue | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:eu-repo/semantics/acceptedVersion | |
| dc.audience | students | |
| dc.audience | researchers | |
| dc.audience | generalPublic | |
