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LUMINOUS GALAXIES. “Only a very small fraction of the total far-IR luminosity from all low-redshift galaxies comes from galaxies more luminous than 10(12) L, yet as discussed above in the context of the submm-wave counts, these luminous galaxies are much more numerous at high redshifts, by a factor of several hundred.” (IR = infra red). https://lnkd.in/dAkZ_ejH View in LinkedIn

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MAJOR DRIVER. “The authors illustrate how and why sexual selection, though restricted to one sex and opposed in the other, is one of the strongest and fastest of all evolutionary forces.” https://lnkd.in/dD4m6ZkT View in LinkedIn

STARTING MAPPING. “Well over 100 submm-selected galaxies are now known, although their redshifts and detailed astrophysical properties are very largely uncertain.” https://lnkd.in/dAkZ_ejH View in LinkedIn

EARLY DUSTY GALAXIES. “The surface density of submm galaxies in some of these fields is about an order of magnitude greater than that in a typical blank field, indicating a significant overdensity of sources. This is likely due to some radio galaxies being found in high-density regions of biased high-redshift galaxy formation, which are possibly `protoclusters' - rich clusters of galaxies in the process of formation.” https://lnkd.in/dAkZ_ejH View in LinkedIn

FUZZY IMAGES. “Existing deep submm images are much less visually stimulating than deep optical images, because their angular resolution is not sufficient to image the internal structure in distant galaxies.” https://lnkd.in/dAkZ_ejH View in LinkedIn

DUSTY GALAXY UPPER RANGE. “Temperatures of up to 110 K are found for some extremely luminous high-redshift galaxies.” https://lnkd.in/dAkZ_ejH View in LinkedIn

DUSTY GALAXY TEMPERATURES. “The inferred luminosity of a dusty galaxy for a fixed observed submm flux density goes up by a factor of 10 if the dust temperature is doubled, at all but the very highest redshifts. There is thus a significant potential bias in submm surveys against the detection of galaxies with hotter dust temperatures for a given bolometric luminosity.” https://lnkd.in/dAkZ_ejH View in LinkedIn

DIFFERENTIATION. “Deep submm-wave observations image the high-redshift Universe with very little contamination from low-redshift galaxies, and can potentially find a population of galaxies that is quite different to those detected in conventional deep optical surveys, and which could be undetectable in these surveys.” https://lnkd.in/dAkZ_ejH View in LinkedIn