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, February 21, 2016

Monday, February 22

Title: Bayesian analysis of cosmic-ray propagation: evidence against homogeneous diffusion
Authors: G. Johannesson et al.
Links: http://arxiv.org/pdf/1602.02243v1.pdf
Presenter: Daniele Gaggero

Title: Grammage of cosmic rays around supernova remnants
Authors: M. D’Angelo, P. Blasi, E. Amato
Links: http://arxiv.org/pdf/1512.05000v1.pdf
Presenter: Daniele Gaggero

Title: High-energy Neutrino follow-up search of Gravitational Wave Event GW150914 with ANTARES and IceCube
Authors: Antares, Icecube, LIGO and Virgo Collaborations
Links: http://arxiv.org/abs/1602.05411
Presenter: Michael Feyereisen

Title: “AdS nonlinear instability: moving beyond spherical symmetry”
Authors: Oscar J. C. Dias and Jorge E. Santos
Links: http://arxiv.org/pdf/1602.03890v1.pdf
Presenter: Fotis Dimitrakopoulos

Monday, February 15, 2016

Monday, February 15

Title: Observation of Gravitational Waves from a Binary Black Hole Merger
Authors: B.P.Abbot et al.
Links: http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.116.061102
Presenter: Michael Feyereisen

Title: Coincidence of a high-fluence blazar outburst with a PeV-energy neutrino event
Authors: Kadler, Krauss et al
Link: http://arxiv.org/abs/1602.02012
Presenter: David Berge

Title: Constraints on Axions and Axionlike Particles from Fermi Large Area Telescope Observations of Neutron Stars
Authors: Bijan Berenji, Jennifer Gaskins, Manuel Meyer
Links: http://arxiv.org/abs/1602.00091
Presenter: J. Gaskins

Title: TeV gamma-ray emission initiated by the population or
individual millisecond pulsars within globular clusters
Authors: W. Bednarek, J. Sitarek & T. Sobczak
Links: http://arxiv.org/abs/1602.03629
Presenter: Richard Bartels

Title: First spin-dependent WIMP-nucleon cross section limits from the LUX experiment
Authors: LUX
Links: http://arxiv.org/abs/1602.03489
Presenter: Christopher McCabe

Monday, February 8, 2016

Monday, February 8

Title: Dark matter subhalos and unidentified sources in the Fermi 3FGL source catalog
Authors: D. Schoonenberg, J. Gaskins, G. Bertone, J. Diemand
Links: http://arxiv.org/abs/1601.06781
Presenter: Djoeke Schoonenberg

Title: Constraints on Axions and Axionlike Particles from Fermi Large Area Telescope Observations of Neutron Stars
Authors: Bijan Berenji, Jennifer Gaskins, Manuel Meyer
Links: http://arxiv.org/abs/1602.00091
Presenter: J. Gaskins

Title: Extracting constraints from direct detection searches of supersymmetric dark matter in the light of null results from the LHC in the squark sector
Authors: Q. Riffard, F. Mayet, G. Bélanger, M.H. Genest, and D. Santos
Links: http://arxiv.org/abs/1602.01030v1
Presenter: S. Liem

Title: Coherent Cascade: Collapsing Solutions in Global AdS
Authors: B. Freivogel, I-S Yang
Links: http://arxiv.org/abs/1512.04383
Presenter: Ben Freivogel

Sunday, January 31, 2016

Monday, February 1

Title: The feeble giant. Discovery of a large and diffuse Milky Way dwarf galaxy in the constellation of Crater
Authors: G. Torrealba, S. E. Koposov, V. Belokurov, M. Irwin
Links: http://arxiv.org/abs/1601.07178
Presenter: M. Lovell

Title: Searching for decaying dark matter in deep XMM-Newton observation of the Draco dwarf spheroidal
Authors: O. Ruchayskiy, A. Boyarsky, D. Iakubovskyi, E. Bulbul, D. Eckert, J. Franse, D. Malyshev, Maxim Markevitch, A. Neronov
Links: http://arxiv.org/abs/1512.07217
Presenter: M. Lovell

Title: Lofar, VLA, and Chandra observations of the Toothbrush galaxy cluster
Authors: R. J. van Weeren, G. Brunetti, M. Bruggen, et al
Links: http://arxiv.org/abs/1601.06029
Presenter: E. Storm

Title: ETHOS - An Effective Theory of Structure Formation: Dark matter physics as a possible explanation of the small-scale CDM problems
Authors: M. Vogelsberger, et al
Links: http://arxiv.org/abs/1512.05349
Presenter: T. Edwards



Monday, January 25, 2016

Monday, January 25


Title: Detailed spectral and morphological analysis of the shell type SNR RCW 86
Authors: HESS collaboration (I Jung corr. author, J Vink, D Berge involved)
Links: http://www.aanda.org/articles/aa/pdf/forth/aa26545-15.pdf (and related work: https://drive.google.com/file/d/0BwglvIfP_v0ldkxZLTkzN05iSjg/view)
Presenter: J. Vink

Title: Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetry
Authors: IceCube
Link: http://arxiv.org/abs/1601.00653 
Presenter: Hamish Silverwood

Title: Simulated Milky Way analogues: implications for dark matter direct searches
Authors: Bozorgnia et al.
Link: http://arxiv.org/abs/1601.04707 
Presenter: Nassim Bozorgnia

Title: The impact of baryons on the direct detection of dark matter
/ Assessing Astrophysical Uncertainties in Direct Detection with Galaxy Simulations
Authors: Kelso et al. / Sloane et al.
Link: http://arxiv/org/abs/1601.04725 & http://arxiv.org/abs/1601.05402 
Presenter: Christopher McCabe

Title: Young and Millisecond Pulsar GeV Gamma-ray Fluxes from the Galactic Center & Beyond
Authors: O’Leary, Kistler, Ker and Dexter
Links: http://arxiv.org/abs/1601.05797
Presenter: R. Bartels

Sunday, January 17, 2016

Monday, January 18


Title: The B/C and sub-Iron/Iron Cosmic ray ratios - further evidence in favor of the spiral arm diffusion model
Authors: David Benyamin, Ehud Nakar, Tsvi Piran, Nir j. Shaviv
Presenter: Daniele Gaggero

Title:The Mass-Concentration-Redshift Relation of Cold and Warm Dark Matter Halos
Authors: Aaron D. Ludlow et al.
Presenter: Richard Bartels

Title: Radio detection prospects for a bulge population of millisecond pulsars as suggested by Fermi-LAT observations of the inner Galaxy
Authors: F. Calore et al.
Presenter: Francesca Calore

Title: The Significance of the 750 GeV Fluctuation in the ATLAS Run 2 Diphoton Data
Authors: Davis, Jonathan H. and Fairbairn, Malcolm and Heal, John and Tunney, Patrick
Presenter: Christopher McCabe

Title: Improved limits on dark matter annihilation in the Sun with the 79-string IceCube detector and implications for supersymmetry
Authors: IceCube
Presenter: Hamish Silverwood

Sunday, January 10, 2016

Monday, January 11

Title: Unveiling the Gamma-Ray Source Distribution below the Fermi Detection Limit with Photon Statistics
Authors: H-S. Zechlin, A. Cuoco, et al.
Links: http://arxiv.org/abs/1512.07190
Presenter: M. Feyereisen

Title: Elastically decoupling dark matter
Authors: Kuflik et al.
Links: http://arxiv.org/abs/1512.04545
Presenter: C. McCabe

Title: A 750 GeV Portal: LHC Phenomenology and Dark Matter Candidates
Authors: Francesco D’Eramo, Jordy de Vries, Paolo Panci
Links: http://arxiv.org/abs/1601.01571
Presenter: R. Bartels

Title: Diphoton excesses at the LHC
Presenter: C. McCabe