Search Publications
New constraints on the 12CO(2-1)/(1-0) line ratio across nearby disc galaxies
Schinnerer, E.; Leroy, A. K.; Bigiel, F. +18 more
Both the CO(2-1) and CO(1-0) lines are used to trace the mass of molecular gas in galaxies. Translating the molecular gas mass estimates between studies using different lines requires a good understanding of the behaviour of the CO(2-1)-to-CO(1-0) ratio, R21. We compare new, high-quality CO(1-0) data from the IRAM 30-m EMIR MultiLine Pr…
The Ophiuchus DIsc Survey Employing ALMA (ODISEA) - III. The evolution of substructures in massive discs at 3-5 au resolution
Flock, Mario; Pinilla, Paola; Hales, Antonio S. +15 more
We present 1.3 mm continuum ALMA long-baseline observations at 3-5 au resolution of 10 of the brightest discs from the Ophiuchus DIsc Survey Employing ALMA (ODISEA) project. We identify a total of 26 narrow rings and gaps distributed in 8 sources and 3 discs with small dust cavities (r <10 au). We find that two discs around embedded protostars …
An observational determination of the evolving extragalactic background light from the multiwavelength HST/CANDELS survey in the Fermi and CTA era
Pérez-González, Pablo G.; Saldana-Lopez, Alberto; Primack, Joel R. +5 more
The diffuse extragalactic background light (EBL) is formed by ultraviolet (UV), optical, and infrared (IR) photons mainly produced by star formation processes over the history of the Universe and contains essential information about galaxy evolution and cosmology. Here, we present a new determination of the evolving EBL spectral energy distributio…
Deep Extragalactic VIsible Legacy Survey (DEVILS): SED fitting in the D10-COSMOS field and the evolution of the stellar mass function and SFR-M⋆ relation
Holwerda, Benne W.; Hopkins, Andrew M.; Driver, Simon P. +11 more
We present catalogues of stellar masses, star formation rates (SFRs), and ancillary stellar population parameters for galaxies spanning 0 < z < 9 from the Deep Extragalactic VIsible Legacy Survey (DEVILS). DEVILS is a deep spectroscopic redshift survey with very high completeness, covering several premier deep fields including COSMOS (D10). …
HELP: the Herschel Extragalactic Legacy Project
Aussel, H.; Shirley, R.; Buat, V. +29 more
We present the Herschel Extragalactic Legacy Project (HELP). This project collates, curates, homogenizes, and creates derived data products for most of the premium multiwavelength extragalactic data sets. The sky boundaries for the first data release cover 1270 deg2 defined by the Herschel SPIRE extragalactic survey fields; notably the …
The Hi-GAL compact source catalogue - II. The 360° catalogue of clump physical properties
Martin, P. G.; Paladini, R.; Pilbratt, G. L. +29 more
We present the 360° catalogue of physical properties of Hi-GAL compact sources, detected between 70 and 500 $\mu$m. This release not only completes the analogous catalogue previously produced by the Hi-GAL collaboration for -71° ≲ ℓ ≲ 67°, but also meaningfully improves it because of a new set of heliocentric distances, 120 808 in total. About a t…
The quasar feedback survey: discovering hidden Radio-AGN and their connection to the host galaxy ionized gas
Thomson, A. P.; Alexander, D. M.; Mainieri, V. +18 more
We present the first results from the Quasar Feedback Survey, a sample of 42 z < 0.2, [O III] luminous AGNs ( L[O III] > 1042.1 ergs s-1) with moderate radio luminosities (i.e. L1.4GHz > 1023.4 W Hz-1; median L1.4GHz = 5.9 × 1023 W Hz-1). Us…
The non-linear infrared-radio correlation of low-z galaxies: implications for redshift evolution, a new radio SFR recipe, and how to minimize selection bias
Zamorani, Giovanni; Schinnerer, Eva; Vardoulaki, Eleni +7 more
The infrared-radio correlation (IRRC) underpins many commonly used radio luminosity-star formation rate (SFR) calibrations. In preparation for the new generation of radio surveys, we revisit the IRRC of low-z galaxies by (a) drawing on the best currently available infrared (IR) and 1.4 GHz radio photometry, plus ancillary data over the widest poss…
An ALMA study of hub-filament systems - I. On the clump mass concentration within the most massive cores
Peretto, Nicolas; Ragan, Sarah E.; Traficante, Alessio +7 more
The physical processes behind the transfer of mass from parsec-scale clumps to massive star-forming cores remain elusive. We investigate the relation between the clump morphology and the mass fraction that ends up in its most massive core (MMC) as a function of infrared brightness, i.e. a clump evolutionary tracer. Using Atacama Large Millimeter/s…
A ∼75 per cent occurrence rate of debris discs around F stars in the β Pic moving group
Pawellek, Nicole; Matrà, Luca; Kennedy, Grant +2 more
Only 20 per cent of old field stars have detectable debris discs, leaving open the question of what disc, if any, is present around the remaining 80 per cent. Young moving groups allow to probe this population, since discs are expected to have been brighter early on. This paper considers the population of F stars in the 23 Myr-old β Pictoris movin…