Year: 2022

LIMITED SAMPLE. “One of the most important uses of CO-line observations of distant submm galaxies found in continuum surveys is their ability to confirm an identification absolutely, by tying together an optical and submm redshift at the position of the galaxy. So far this has been achieved for only three submm galaxies.” https://lnkd.in/dAkZ_ejH View in LinkedIn

HEN’S TEETH. “Although the contribution to measured submm-wave flux densities from line emission could be significant at the level of order 10%, only a small fraction of the bolometric luminosity from galaxies is detected in the submm waveband.” https://lnkd.in/dAkZ_ejH View in LinkedIn

THE BULGE. “More than 99% of the bolometric luminosity still appears in the continuum, predominantly at shorter far-IR wavelengths.” https://lnkd.in/dAkZ_ejH View in LinkedIn

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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

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

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

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

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