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Simultaneous Planck, Swift, and Fermi observations of X-ray and γ-ray selected blazars
Tagliaferri, G.; Bonaldi, A.; Bonavera, L. +92 more
We present simultaneous Planck, Swift, Fermi, and ground-based data for 105 blazars belonging to three samples with flux limits in the soft X-ray, hard X-ray, and γ-ray bands, with additional 5GHz flux-density limits to ensure a good probability of a Planck detection. We compare our results to those of a companion paper presenting simultaneous Pla…
Galactic cold cores. III. General cloud properties
Bernard, J. -P.; Falgarone, E.; Juvela, M. +15 more
Context. In the project galactic cold cores we are carrying out Herschel photometric observations of cold regions of the interstellar clouds as previously identified with the Planck satellite. The aim of the project is to derive the physical properties of the population of cold clumps and to study its connection to ongoing and future star formatio…
Submillimetre photometry of 323 nearby galaxies from the Herschel Reference Survey
Clements, D. L.; Ciesla, L.; Buat, V. +23 more
The Herschel Reference Survey (HRS) is a guaranteed time Herschel key project aimed at studying the physical properties of the interstellar medium in galaxies of the nearby universe. This volume limited, K-band selected sample is composed of galaxies spanning the whole range of morphological types (from ellipticals to late-type spirals) and enviro…
Dark gas in the solar neighborhood from extinction data
Bernard, J. -P.; Fukui, Y.; Onishi, T. +4 more
Context. When modeling infrared or γ-ray data as a linear combination of observed gas tracers, excess emission has been detected compared to expectations from known neutral and molecular gas traced by HI and CO measurements, respectively. This excess might correspond to additional gas component. This so-called “dark gas” (DG) has been observed in …
Dust coagulation processes as constrained by far-infrared observations
Abergel, A.; Bernard, J. -P.; Ristorcelli, I. +4 more
Aims: We develop a simple model of coagulated dust particles of two sizes (3.5 and 60 nm radius) to understand the nature and the effects of coagulation, which could explain the evolution of the far-infrared (FIR) dust opacity observed in the transition between the diffuse and the dense interstellar medium (ISM) (nH > 103
Planck intermediate results. I. Further validation of new Planck clusters with XMM-Newton
Böhringer, H.; Kneissl, R.; Dahle, H. +182 more
We present further results from the ongoing XMM-Newton validation follow-up of Planck cluster candidates, detailing X-ray observations of eleven candidates detected at a signal-to-noise ratio of 4.5 < S/N < 5.3 in the same 10-month survey maps used in the construction of the Early SZ sample. The sample was selected in order to test internal …
Modelling the dust emission from dense interstellar clouds: disentangling the effects of radiative transfer and dust properties
Abergel, A.; Bernard, J. -P.; Juvela, M. +9 more
Context. Dust emission is increasingly used as a tracer of the mass in the interstellar medium. With the combination of Planck and Herschel observatories, we now have both the spectral coverage and the angular resolution required to observe dense and cold molecular clouds. However, as these clouds are optically thick at short wavelengths but optic…
The ROSAT-ESO flux limited X-ray galaxy cluster survey (REFLEX II). I. Newly identified X-ray luminous clusters at z ≥ 0.2
Böhringer, H.; Chon, G.
We report 19 intermediate redshift clusters newly detected in the ROSAT All-Sky survey that are spectroscopically confirmed. They form a part of 911 objects in the REFLEX II cluster catalogue with a limiting flux of 1.8 × 10-12 erg/s/cm2 in the 0.1-2.4 keV ROSAT band at redshift z ≥ 0.2. In addition we report three clusters f…
Modeling the evolution of infrared galaxies: clustering of galaxies in the cosmic infrared background
Doré, O.; Lagache, G.; Béthermin, M. +1 more
Context. Star-forming galaxies are highly biased tracers of the underlying dark matter density field. Their clustering can be studied through the cosmic infrared background (CIB) anisotropies. These anisotropies have been measured from 100 µm to 2 mm in the past few years.
Aims: In this paper, we present a fully parametric model allowin…
A hybrid approach to cosmic microwave background lensing reconstruction from all-sky intensity maps
Perotto, L.; Plaszczynski, S.; Starck, J. -L. +1 more
On the basis of realistic simulations, we propose a hybrid method to reconstruct the lensing potential power spectrum, directly on Planck-like cosmic microwave background frequency maps. This involves the use of a large Galactic mask and the treatment of strong inhomogeneous noise. For ℓ ≲ 100, we show that a full-sky inpainting method, which was …