We meet every Monday at 1.30pm to discuss the new developments in the fields of research relevant for GRAPPA members and affiliates. The idea is to discuss briefly, with the help of a projector, the results of ~5 interesting papers recently appeared on the arXiv, or anywhere else. Please choose one posted e.g. this week in your field and tell us about it in 5-10 minutes. Feel free to join us even if you haven't read anything.

Sunday, November 29, 2015

Monday, November 30


Title: Origin of the Proton-to-Helium Ratio Anomaly in Cosmic Rays
Authors: N. Tomassetti
Links: http://arxiv.org/abs/1511.04460
Presenter: Daniele Gaggero

Title: Fermi-LAT Observations of High-Energy Gamma-Ray Emission Toward the Galactic Center
Authors: The Fermi-LAT Collaboration
Links: http://arxiv.org/abs/1511.02938
Presenter: Christoph Weniger

Title: A novel scenario for the possible X-ray line feature at ∼3.5 keV: Charge exchange with bare sulfur ions
Authors: L. Gu, J. Kaastra, A.J.J. Rasssen, et al
Links: http://arxiv.org/abs/1511.06557
Presenter: Emma Storm

Title: Cross-correlation of the Extragalactic Gamma-ray Background with Luminonous Red Galaxies
Authors: M. Shirasaki, S. Horiuchi and N. Yoshida
Links: http://arxiv.org/abs/1511.07092
Presenter: Mattia Fornasa

Title: Shocks in the Early Universe
Authors: Ue-Li Pen, Neil Turok
Links: http://arxiv.org/abs/1510.02985
Presenter: Fotis Dimitrakopoulos

Sunday, November 22, 2015

Monday, November 23

Title: Satellite galaxies in semi-analytic models of galaxy formation with sterile neutrino dark matter
Authors: M. R. Lovell, S. Bose, A. Boyarsky, S. Cole, C. S. Frenk, V. Gonzalez-Perez, R. Kennedy, O. Ruchayskiy, A. Smith
Presenter: Mark Lovell

Title: What statistics can tell us about strategy in tennis
Authors: I. Y. Kawashima, et al.
Presenter: Michael Feyereisen

Title: The black hole spin influence on accretion disk neutrino detection
Authors: Caballero et al.
Presenter: Irene Tamborra

Title: Parameter inference with estimated covariance matrices
Authors: Elena Sellentin, Alan F. Heavens
Links: http://arxiv.org/abs/1511.05969v1
Presenter: Thomas Edwards

Title: Modulated Natural Inflation
Authors: Rolf Kappl, Hans Peter Nilles, Martin Wolfgang Winkler
Links: http://arxiv.org/abs/1511.05560
Presenter: Ben Freivogel

Sunday, November 15, 2015

Monday, November 16


Title: Dark matter cores all the way down 
Authors: J. I. Read, O. Agertz , M. L. M. Collins 
Presenter: Hamish Silverwood

Title: Galactic dark matter search via phenomenological astrophysics modelling
Authors: Xiaoyuan Huang, Torsten Enßlin, Marco Selig
Presenter: Francesca Calore

Title: Satellite galaxies in semi-analytic models of galaxy formation with sterile neutrino dark matter
Authors: M. R. Lovell, S. Bose, A. Boyarsky, S. Cole, C. S. Frenk, V. Gonzalez-Perez, R. Kennedy, O. Ruchayskiy, A. Smith
Presenter: Mark Lovell

Title: The APOSTLE simulations: solutions to the Local Group's cosmic puzzles
Authors: T. Sawala, C.S. Frenk, A. Fattahi, J. Navarro et al.
Presenter: Mark Lovell

Title: Planckian Interacting Massive Particles as Dark Matter
Author: Garny, Mathias and Sandora, McCullen and Sloth, Martin S.
Presenter: Ben Freivogel

Saturday, November 7, 2015

Monday, November 9


Title: Evidence against star-forming galaxies as the dominant source of IceCube neutrinos
Authors: Bechtol, Ahlers et al.
Links: http://arxiv.org/abs/1511.00688
Presenter: Daniele Gaggero

Title: KAT–7 observations of an unbiased sample of mass-selected galaxy clusters
Authors: G. Bernardi, T. Venturi, R. Cassano, et al
Links: http://arxiv.org/abs/1511.01022
Presenter: Emma Storm

Title: Tomographic Constraints on High-Energy Neutrinos of Hadronuclear Origin
Authors: Shin'ichiro Ando, Irene Tamborra, Fabio Zandanel
Links: http://arxiv.org/abs/1509.02444
Presenter: Shin’ichiro Ando

Title: Resolving the Extragalactic gamma-ray Background above 50 GeV with Fermi-LAT
Authors: The Fermi-LAT Collaboration
Links: http://arxiv.org/abs/1511.00693
Presenter: Michael Feyereisen

Title: The Coannihilation Codex
Authors: Baker, Mike et al
Links: http://arxiv.org/pdf/1510.03434.pdf
Presenter: Christopher McCabe