Journal of Cosmology and Astroparticle Physics latest papers http://stacks.iop.org/1475-7516 Journal of Cosmology and Astroparticle Physics (JCAP) has fast established itself as essential reading for the astrophysical community. JCAP covers all aspects of cosmology and particle astrophysics and encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal has already published key results on the implications of the latest CMB data for particle physics and cosmology, inflation, dark matter and dark energy phenomenology, solutions to the solar neutrino problem, and the use of supernova data to test cosmological models. JCAP is the second title from the partnership between IOP and SISSA. en-gb Copyright © IOP Publishing 2009 Thu, 01 Jan 1970 00:00:00 GMT Thu, 01 Jan 1970 00:00:00 GMT http://syndication.iop.org/about/ custserv@iop.org (Customer Services) Journal of Cosmology and Astroparticle Physics http://images.iop.org/website-logos/ejs_logo.png http://stacks.iop.org/ Anisotropy vs chemical composition at ultra-high energies http://stacks.iop.org/1475-7516/2009/i=11/a=009?rss=2.0 Author(s): Martin Lemoine and Eli Waxman<br>Affiliation(s): Institut d'Astrophysique de Paris, CNRS, Universite Pierre & Marie Curie, 98 bis boulevard Arago, F-75014 Paris, France; Physics Faculty, Weizmann Institute, PO Box 26, Rehovot 7600, Israel Thu, 05 Nov 2009 00:00:00 GMT Phase-space analysis of Hořava-Lifshitz cosmology http://stacks.iop.org/1475-7516/2009/i=11/a=006?rss=2.0 Author(s): Genly Leon and Emmanuel N. Saridakis<br>Affiliation(s): Department of Mathematics, Universidad Central de Las Villas, Santa Clara CP 54830, Cuba; Department of Physics, University of Athens, GR-15771 Athens, Greece Thu, 05 Nov 2009 00:00:00 GMT Scalar perturbations in p-nflation: the 3-form case http://stacks.iop.org/1475-7516/2009/i=11/a=005?rss=2.0 Author(s): Cristiano Germani and Alex Kehagias<br>Affiliation(s): LUTH, Observatoire de Paris, CNRS UMR 8102, Universite Paris Diderot, 5 Place Jules Janssen, 92195 Meudon Cedex, France; Department of Physics, National Technical University of Athens, Hroon Polytechniou 9, 15780 Zogrtafou, Athens, Greece Thu, 05 Nov 2009 00:00:00 GMT Tunneling and propagation of vacuum bubbles on dynamical backgrounds http://stacks.iop.org/1475-7516/2009/i=11/a=008?rss=2.0 Author(s): Dennis Simon, Julian Adamek, Aleksandar Rakic and Jens C. Niemeyer<br>Affiliation(s): Institut fur Theoretische Physik und Astrophysik, Universitat Wurzburg, Am Hubland, D-97074 Wurzburg, Germany; Institut fur Astrophysik, Universitat Gottingen, Friedrich-Hund-Platz 1, D-37077 Gottingen, Germany Thu, 05 Nov 2009 00:00:00 GMT Primordial non-Gaussianities from the trispectra in multiple field inflationary models http://stacks.iop.org/1475-7516/2009/i=11/a=007?rss=2.0 Author(s): Xian Gao, Miao Li and Chunshan Lin<br>Affiliation(s): Key Laboratory of Frontiers in Theoretical Physics, Kavli Institute for Theoretical Physics, Chinese Academy of Sciences, 55# ZhonggGuanCun East Street, Beijing 100190, P.R.China; The Interdisciplinary Center for Theoretical Study, University of Science and Technology of China, 96# JinZhai Road, Hefei, Anhui 230026, P.R.China Thu, 05 Nov 2009 00:00:00 GMT Statistics and geometry of cosmic voids http://stacks.iop.org/1475-7516/2009/i=11/a=004?rss=2.0 Author(s): Jose Gaite<br>Affiliation(s): Instituto de Microgravedad IDR, ETS Ingenieros Aeronauticos, Universidad Politecnica de Madrid, E-28040 Madrid, Spain Thu, 05 Nov 2009 00:00:00 GMT The subdominant curvaton http://stacks.iop.org/1475-7516/2009/i=11/a=003?rss=2.0 Author(s): Kari Enqvist, Sami Nurmi, Gerasimos Rigopoulos, Olli Taanila and Tomo Takahashi<br>Affiliation(s): Physics Department, University of Helsinki, FIN-00014 Helsinki, Finland; Helsinki Institute of Physics, University of Helsinki, FIN-00014 Helsinki, Finland; Institute for Theoretical Physics, University of Heidelberg, 69120 Heidelberg, Germany; Department of Physics, Saga University, Saga 840-8502, Japan Thu, 05 Nov 2009 00:00:00 GMT Late time CMB anisotropies constrain mini-charged particles http://stacks.iop.org/1475-7516/2009/i=11/a=002?rss=2.0 Author(s): C. Burrage, J. Jaeckel, J. Redondo and A. Ringwald<br>Affiliation(s): Deutsches Elektronen Synchrotron DESY, Notkestrasse 85, D-22607 Hamburg, Germany; Institute for Particle Physics and Phenomenology, Durham University, Durham, DH1 3LE, U.K. Wed, 04 Nov 2009 00:00:00 GMT Can the observed large scale magnetic fields be seeded by helical primordial fields? http://stacks.iop.org/1475-7516/2009/i=11/a=001?rss=2.0 Author(s): Chiara Caprini, Ruth Durrer and Elisa Fenu<br>Affiliation(s): IPhT, CEA-Saclay, CNRS, URA 2306, F-91191 Gif-sur-Yvette, France; Departement de Physique Theorique, Universite de Geneve, 24 quai Ernest Ansermet, CH-1211 Geneve 4, Switzerland Wed, 04 Nov 2009 00:00:00 GMT