Search Publications
First results from the Herschel Gould Belt Survey in Taurus
Abergel, A.; Bernard, J. -P.; Hill, T. +26 more
The whole of the Taurus region (a total area of 52 deg2) has been observed by the Herschel Spectral and Photometric Imaging Receiver (SPIRE) and Photodetector Array Camera and Spectrometer (PACS) instruments at wavelengths of 70, 160, 250, 350 and 500 µm as part of the Herschel Gould Belt Survey. In this paper we present the first…
Dust and star formation properties of a complete sample of local galaxies drawn from the Planck Early Release Compact Source Catalogue
Baccigalupi, C.; Bonavera, L.; Clements, D. L. +16 more
We combine Planck High Frequency Instrument data at 857, 545, 353 and 217 GHz with data from Wide-field Infrared Survey Explorer (WISE), Spitzer, IRAS and Herschel to investigate the properties of a well-defined, flux-limited sample of local star-forming galaxies. A 545 GHz flux density limit was chosen so that the sample is 80 per cent complete a…
A simplified view of blazars: the γ-ray case
Polenta, G.; Giommi, P.; Padovani, P.
We have recently proposed a new simplified scenario where blazars are classified as flat spectrum radio quasars (FSRQs) or BL Lacs according to the prescriptions of unified schemes, and to a varying combination of Doppler-boosted radiation from the jet, emission from the accretion disc, the broad line region and light from the host galaxy. Here we…
Cosmological constraints from baryon acoustic oscillations and clustering of large-scale structure
Halpern, M.; Hinshaw, G.; Addison, G. E.
We constrain cosmological parameters using combined measurements of the baryon acoustic oscillation (BAO) feature in the correlation function of galaxies and Lyα absorbers that together cover 0.1 < z < 2.4. The BAO position measurements alone - without fixing the absolute sound horizon `standard ruler' length with cosmic microwave background…
Weak lensing analysis of RXC J2248.7-4431
Zenteno, A.; Gruen, D.; Young, J. +8 more
We present a weak lensing analysis of the cluster of galaxies RXC J2248.7-4431, a massive system at z = 0.3475 with prominent strong lensing features covered by the Cluster Lensing And Supernova survey with Hubble (CLASH). Based on UBVRIZ imaging from the Wide-Field Imager camera at the MPG/ESO 2.2-m telescope, we measure photometric redshifts and…
The local luminosity function of star-forming galaxies derived from the Planck Early Release Compact Source Catalogue
Bonavera, L.; Clements, D. L.; Delabrouille, J. +18 more
The Planck Early Release Compact Source Catalogue (ERCSC) has offered the first opportunity to accurately determine the luminosity function of dusty galaxies in the very local Universe (i.e. distances ≲100 Mpc), at several (sub-)millimetre wavelengths, using blindly selected samples of low-redshift sources, unaffected by cosmological evolution. Th…
Constraining thermal dust emission in distant galaxies with number counts and angular power spectra
Bond, J. R.; Dunkley, J.; Addison, G. E.
We perform a joint fit to differential number counts from Spitzer's Multiband Imaging Photometer for Spitzer and Herschel's Spectral and Photometric Imaging Receiver (SPIRE) instruments, and angular power spectra of cosmic infrared background (CIB) anisotropies from SPIRE, Planck, the Atacama Cosmology Telescope and the South Pole Telescope, which…
Long-term monitoring of PKS 0537-441 with Fermi-LAT and multiwavelength observations
Covino, S.; Pian, E.; Sbarufatti, B. +21 more
We report on multiwavelength observations of the blazar PKS 0537-441 (z = 0.896) obtained from microwaves through γ-rays by Submillimeter Array, Rapid Eye Mounting, Automatic Telescope for Optical Monitoring (ATOM), Swift and Fermi mostly during 2008 August-2010 April. Strong variability has been observed in γ-rays, with two major flaring episodes…
A multiwavelength study of the Magellanic-type galaxy NGC 4449 - I. Modelling the spectral energy distribution, the ionization structure and the star formation history
Cooray, A.; Page, M. J.; Lebouteiller, V. +16 more
We present an integrated photometric spectral energy distribution (SED) of the Magellanic-type galaxy NGC 4449 from the far-ultraviolet (UV) to the submillimetre, including new observations acquired by the Herschel Space Observatory. We include integrated UV photometry from the Swift Ultraviolet and Optical Telescope using a measurement technique …
Mining the Herschel-Astrophysical Terahertz Large Area Survey: submillimetre-selected blazars in equatorial fields
Ivison, R. J.; Sutherland, W.; Bonavera, L. +29 more
The Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) provides an unprecedented opportunity to search for blazars at sub-mm wavelengths. We cross-matched the Faint Images of the Radio Sky at Twenty-cm (FIRST) radio source catalogue with the 11 655 sources brighter than 35 mJy at 500 µm in the ∼135 deg2 of the sky covere…