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Momentum dependence of the bispectrum in two-field inflation
Eleftheria Tzavara, Bartjan van Tent
We examine the momentum dependence of the bispectrum of two-field inflationary models within the long-wavelength formalism. We determine the sources of scale dependence in the expr…
Planck Intermediate Results. IX. Detection of the Galactic haze with Planck
Planck Collaboration, P. A. R. Ade, N. Aghanim +181
Using precise full-sky observations from Planck, and applying several methods of component separation, we identify and characterize the emission from the Galactic "haze" at microwa…
Planck intermediate results. VIII. Filaments between interacting clusters
Planck Collaboration, P. A. R. Ade, N. Aghanim +208
About half of the baryons of the Universe are expected to be in the form of filaments of hot and low density intergalactic medium. Most of these baryons remain undetected even by t…
Planck intermediate results. X. Physics of the hot gas in the Coma cluster
Planck Collaboration, P. A. R. Ade, N. Aghanim +207
We present an analysis of Planck satellite data on the Coma Cluster observed via the Sunyaev-Zeldovich effect. Planck is able, for the first time, to detect SZ emission up to r ~ 3…
Planck Intermediate Results II: Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters
Planck, AMI Collaborations, : +195
A comparison is presented of Sunyaev-Zeldovich measurements for 11 galaxy clusters as obtained by Planck and by the ground-based interferometer, the Arcminute Microkelvin Imager. A…
Planck Intermediate Results. IV. The XMM-Newton validation programme for new Planck galaxy clusters
Planck Collaboration, P. A. R. Ade, N. Aghanim +191
We present the final results from the XMM-Newton validation follow-up of new Planck galaxy cluster candidates. We observed 15 new candidates, detected with signal-to-noise ratios b…
Isocurvature modes in the CMB bispectrum
David Langlois, Bartjan van Tent
We study the angular bispectrum of local type arising from the (possibly correlated) combination of a primordial adiabatic mode with an isocurvature one. Generically, this bispectr…
Planck intermediate results. III. The relation between galaxy cluster mass and Sunyaev-Zeldovich signal
Planck Collaboration, P. A. R. Ade, N. Aghanim +183
We examine the relation between the galaxy cluster mass M and Sunyaev-Zeldovich (SZ) effect signal D_A^2 Y for a sample of 19 objects for which weak lensing (WL) mass measurements…