Search Publications
GOODS-ALMA: 1.1 mm galaxy survey. I. Source catalog and optically dark galaxies
Magnelli, B.; Daddi, E.; Elbaz, D. +36 more
Aims: We present a 69 arcmin2 ALMA survey at 1.1 mm, GOODS-ALMA, matching the deepest HST-WFC3 H-band part of the GOODS-South field.
Methods: We tapered the 0″24 original image with a homogeneous and circular synthesized beam of 0″60 to reduce the number of independent beams - thus reducing the number of purely statistical spu…
Dust temperature and mid-to-total infrared color distributions for star-forming galaxies at 0 < z < 4
Elbaz, D.; Franco, M.; Ciesla, L. +3 more
We present a new, publicly available library of dust spectral energy distributions (SEDs). These SEDs are characterized by only three parameters: the dust mass (Mdust), the dust temperature (Tdust), and the mid-to-total infrared color (IR8 ≡ LIR/L8). The latter measures the relative contribution of polyc…
Starbursts in and out of the star-formation main sequence
Daddi, E.; Elbaz, D.; Franco, M. +13 more
Aims: We use high-resolution continuum images obtained with the Atacama Large Millimeter Array (ALMA) to probe the surface density of star formation in z ~ 2 galaxies and study the different physical properties between galaxies within and above the star-formation main sequence of galaxies.
Methods: We use ALMA images at 870 µm with…
Main sequence of star forming galaxies beyond the Herschel confusion limit
Buat, V.; Małek, K.; Burgarella, D. +7 more
Context. Deep far-infrared (FIR) cosmological surveys are known to be affected by source confusion, causing issues when examining the main sequence (MS) of star forming galaxies. In the past this has typically been partially tackled by the use of stacking. However, stacking only provides the average properties of the objects in the stack.
Aim…
DustPedia: Multiwavelength photometry and imagery of 875 nearby galaxies in 42 ultraviolet-microwave bands
Bianchi, S.; Fritz, J.; De Looze, I. +16 more
Aims: The DustPedia project is capitalising on the legacy of the Herschel Space Observatory, using cutting-edge modelling techniques to study dust in the 875 DustPedia galaxies - representing the vast majority of extended galaxies within 3000 km s-1 that were observed by Herschel. This work requires a database of multiwavelength im…
HELP: modelling the spectral energy distributions of Herschel detected galaxies in the ELAIS N1 field
Shirley, R.; Buat, V.; Małek, K. +10 more
Aims: The Herschel Extragalactic Legacy Project (HELP) focuses on the data from ESA's Herschel mission, which covered over 1300 deg2 and is preparing to publish a multi-wavelength catalogue of millions of objects. Our main goal is to find the best approach to simultaneously fitting spectral energy distributions (SEDs) of millions o…
Orbital properties of binary post-AGB stars
Manick, Rajeev; Van Winckel, Hans; Kamath, Devika +5 more
Binary post-asymptotic giant branch (post-AGB) stars are thought to be the products of a strong but poorly understood interaction during the AGB phase. The aim of this contribution is to update the orbital elements of a sample of galactic post-AGB binaries observed in a long-term radial-velocity monitoring campaign by analysing these systems in a …
A Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE). II. Constraining the quenching time in the stripped galaxy NGC 4330
Ferrarese, L.; Buat, V.; Boquien, M. +24 more
The Virgo Environmental Survey Tracing Ionised Gas Emission (VESTIGE) is a blind narrow-band Hα + [NII] imaging survey carried out with MegaCam at the Canada-France-Hawaii Telescope. During pilot observations taken in the spring of 2016 we observed NGC 4330, an intermediate mass (M* ≃ 109.8 M⊙) edge-on star forming…
Structure of photodissociation fronts in star-forming regions revealed by Herschel observations of high-J CO emission lines
Le Bourlot, J.; Le Petit, F.; Pinto, C. +17 more
Context. In bright photodissociation regions (PDR) associated with massive star formation, the presence of dense "clumps" that are immersed in a less dense interclump medium is often proposed to explain the difficulty of models to account for the observed gas emission in high-excitation lines.
Aims: We aim to present a comprehensive view of t…
Fraction of bolometric luminosity absorbed by dust in DustPedia galaxies
Bianchi, S.; Madden, S. C.; Galliano, F. +16 more
Aims: We aim to study the fraction of stellar radiation absorbed by dust, fabs, in 814 galaxies of different morphological types. The targets constitute the vast majority (93%) of the DustPedia sample, including almost all large (optical diameter larger than 1'), nearby (v ≤ 3000 km s-1) galaxies observed with the Hersch…