Search Publications
On the dust temperatures of high-redshift galaxies
Faucher-Giguère, Claude-André; Hayward, Christopher C.; Hopkins, Philip F. +7 more
Dust temperature is an important property of the interstellar medium (ISM) of galaxies. It is required when converting (sub)millimetre broad-band flux to total infrared luminosity (LIR), and hence star formation rate, in high-redshift galaxies. However, different definitions of dust temperatures have been used in the literature, leading…
An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: source catalogue and properties
Thomson, A. P.; Ivison, R. J.; Kocevski, Dale D. +26 more
We present the catalogue and basic properties of sources in AS2UDS, an 870-µm continuum survey with the Atacama Large Millimetre/sub-millimetre Array (ALMA) of 716 single-dish sub-millimetre sources detected in the UKIDSS/UDS field by the SCUBA-2 Cosmology Legacy Survey. In our sensitive ALMA follow-up observations, we detect 708 sub-millime…
From the far-ultraviolet to the far-infrared - galaxy emission at 0 ≤ z ≤ 10 in the SHARK semi-analytic model
Obreschkow, Danail; Driver, Simon P.; Robotham, Aaron S. G. +8 more
We combine the SHARK semi-analytic model of galaxy formation with the PROSPECT software tool for spectral energy distribution (SED) generation to study the multiwavelength emission of galaxies from the far-ultraviolet (FUV) to the far-infrared (FIR) at 0 ≤ z ≤ 10. We produce a physical model for the attenuation of galaxies across cosmic time by co…
The ALMA Fornax Cluster Survey I: stirring and stripping of the molecular gas in cluster galaxies
de Looze, Ilse; Baes, Maarten; Bendo, George J. +15 more
We present the first results of the ALMA Fornax Cluster Survey: a complete ALMA survey of all members of the Fornax galaxy cluster that were detected in H I or in the far-infrared with Herschel. The sample consists of a wide variety of galaxy types, ranging from giant ellipticals to spiral galaxies and dwarfs, located in all (projected) areas of t…
The first maps of κd - the dust mass absorption coefficient - in nearby galaxies, with DustPedia
Bianchi, S.; Madden, S. C.; Galliano, F. +17 more
The dust mass absorption coefficient, κd is the conversion function used to infer physical dust masses from observations of dust emission. However, it is notoriously poorly constrained, and it is highly uncertain how it varies, either between or within galaxies. Here we present the results of a proof-of-concept study, using the DustPedi…
Rejuvenated galaxies with very old bulges at the origin of the bending of the main sequence and of the `green valley'
Daddi, Emanuele; Juneau, Stéphanie; Liu, Daizhong +11 more
We investigate the nature of star-forming galaxies with reduced specific star formation rate (sSFR) and high stellar masses, those `green valley' objects that seemingly cause a reported bending, or flattening, of the star-forming main sequence. The fact that such objects host large bulges recently led some to suggest that the internal formation of…
The dust content of the Crab Nebula
De Looze, I.; Gomez, H. L.; Barlow, M. J. +7 more
We have modelled the near-infrared to radio images of the Crab Nebula with a Bayesian SED model to simultaneously fit its synchrotron, interstellar (IS), and supernova dust emission. We infer an IS dust extinction map with an average AV = 1.08 ± 0.38 mag, consistent with a small contribution ({≲ }22{{ per cent}}) to the Crab's overall i…
SOFIA mid-infrared observations of Supernova 1987A in 2016 - forward shocks and possible dust re-formation in the post-shocked region
Matsuura, Mikako; Barlow, M. J.; Meixner, Margaret +10 more
The equatorial ring of Supernova (SN) 1987A has been exposed to forward shocks from the SN blast wave, and it has been suggested that these forward shocks have been causing ongoing destruction of dust in the ring. We obtained Stratospheric Observatory For Infrared Astronomy The Faint Object InfraRed CAmera for the SOFIA Telescope (FORCAST) 11.1, 1…
A statistically significant lack of debris discs in medium separation binary systems
Wyatt, Mark C.; Kennedy, Grant M.; Su, Kate Y. L. +1 more
We compile a sample of 341 binary and multiple star systems with the aim of searching for and characterizing Kuiper belt-like debris discs. The sample is assembled by combining several smaller samples studied in previously published work with targets from two unpublished Herschel surveys. We find that 38 systems show excess emission at 70 or 100 &…
PAHs as tracers of the molecular gas in star-forming galaxies
Daddi, E.; Elbaz, D.; Gómez-Guijarro, C. +12 more
We combine new CO(1-0) line observations of 24 intermediate redshift galaxies (0.03 < z < 0.28) along with literature data of galaxies at 0 < z < 4 to explore scaling relations between the dust and gas content using polycyclic aromatic hydrocarbon (PAH) 6.2 µm (L6.2), CO (L^' }_CO), and infrared (LIR) lumino…