نتایج جستجو برای: 10 m using scuba total
تعداد نتایج: 4847274 فیلتر نتایج به سال:
Using the submm array camera SCUBA on the 15-m JCMT it is now possible to conduct unbiased submm surveys and quantify the level of star-formation activity in the young Universe by observing the rest-frame FIR thermal emission from dust in highredshift galaxies. However an accurate interpretation of these existing submm cosmological surveys is prevented by uncertainties in the redshifts of the s...
MS 0451.6−0305 is a rich galaxy cluster whose strong lensing is particularly prominent at submm wavelengths. We combine new Submillimetre Common-User Bolometer Array (SCUBA)-2 data with imaging from Herschel Spectral and Photometric Imaging Receiver (SPIRE) and PACS and Hubble Space Telescope in order to try to understand the nature of the sources being lensed. In the region of the ‘giant submm...
SCUBA-2 is an innovative 10000 pixel bolometer camera operating at submillimetre wavelengths on the James Clerk Maxwell Telescope (JCMT). The camera has the capability to carry out wide-field surveys to unprecedented depths, addressing key questions relating to the origins of galaxies, stars and planets. With two imaging arrays working simultaneously in the atmospheric windows at 450 and 850μm,...
Physical dust models are presented for 65 galaxies in the SINGS survey that are strongly detected in the four IRAC bands and three MIPS bands. For each galaxy we estimate (1) the total dust mass, (2) the fraction of the dust mass contributed by PAHs, and (3) the intensity of the starlight heating the dust grains. We find that spiral galaxies have dust properties resembling the dust in the local...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
Abstract We examine the robustness of color–color selection quiescent galaxies (QGs) against contamination dusty star-forming using latest submillimeter data. selected 18,304 QG candidates out to z ∼ 3 commonly adopted NUV – r J based on high-quality multiwavelength COSMOS2015 catalog. Using extremely deep 450 and 850 μ m catalogs from JCMT SCUBA-2 Large Programs, S2COSMOS STUDIES, as well Atac...
Environmental conditions and increased physical activity during scuba diving are followed by increased production of free radicals and disturbed redox balance. Redox balance disorder is associated with damage of cellular components, changes of cellular signaling pathways and alterations of gene expression. Oxidative stress leads to increased expression of sirtuins (SIRTs), molecules which play ...
We present an investigation of candidate Infrared Dark Cloud cores as identified by Simon et al. (2006) located within the SCUBA Legacy Catalogue. After applying a uniform noise cut to the Catalogue data we identify 154 Infrared Dark Cloud cores that were detected at 850μm and 51 cores that were not. We derive column densities for each core from their 8μm extinction and find that the IRDCs dete...
Abstract Observing nearby galaxies with submillimeter telescopes on the ground has two major challenges. First, brightness is significantly reduced at long wavelengths compared to peak of dust emission. Second, it necessary use a high-pass spatial filter remove atmospheric noise large angular scales, which unwelcome side effect also removing galaxy’s large-scale structure. We have developed tec...
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