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.

Monday, April 25, 2016

Monday, 25th April

Title: Constraining particle dark matter using local galaxy distribution
Authors: S. Ando, K. Ishiwata
Links: https://arxiv.org/abs/1604.02263
Presenter: Shin’ichiro


Title: Where stars form: inside-out growth and coherent star formation from HST Halpha maps of 2676 galaxies across the main sequence at z~1
Authors: June et al
Links: https://arxiv.org/abs/1507.03999
Presenter: Daniele

Title: Physics from solar neutrinos in dark matter direct detection experiments
Authors: Cerdeno, Fairbairn, Jubb, Machado, Vincent, Boehm
Links: https://arxiv.org/abs/1604.01025
Presenter: Chris

Monday, April 18, 2016

Monday 18th April

Monday, April 4, 2016

Monday, 4th April

Sunday, March 20, 2016

Monday, February 21

Title: “Deep observation of the NGC 1275 region with MAGIC: search of diffuse gamma-ray emission from cosmic rays in the Perseus cluster”
Authors: MAGIC Collaboration
Links: http://arxiv.org/abs/1602.03099
Presenter: Fabio Zandanel

Title: A Magellanic Origin of the DES Dwarfs
Authors: Prashin Jethwa, Denis Erkal, Vasily Belokurov
Links: http://arxiv.org/abs/1603.04420
Presenter: M. Lovell

Title: Self-gravitating systems of ideal gases in the 1PN approximation
Authors: G.M. Kremer, M.G. Richarte, K. Weber
Links: http://arxiv.org/abs/1603.05082
Presenter: M. Feyereisen

Monday, March 14, 2016

Monday, February 14

Title: The Local Group: The Ultimate Deep Field
Authors: M. Boylan-Kolchin, D. Weisz, J. Bullock, M. Cooper
Links: http://arxiv.org/abs/1603.02679
Presenter: M. Lovell

Title: MWA Limits on Radio Emission from ANTARES Neutrino Events
Authors: MWA, ANTARES, TAROT, ROTSE Collaborations
Links: http://arxiv.org/abs/1603.02271
Presenter: E. Storm

Title: Detection of gamma-ray emission from globular clusters M15, NGC6397, NGC 6218 and NGC 6139 with Fermi-LAT                           
Authors: P.F. Zhang et al
Links: http://arxiv.org/abs/1603.02358
Presenter: T. Edwards

Title: A new constraint on millicharged dark matter from galaxy clusters
Authors: Kenji Kadota et al.
Links: http://arxiv.org/abs/1602.04009
Presenter: C. Weniger

Sunday, March 6, 2016

Monday, March 7  

Title: Deep observation of the NGC 1275 region with MAGIC: search of diffuse gamma-ray emission from cosmic rays in the Perseus cluster
Authors: MAGIC Collaboration
Links: http://arxiv.org/abs/1602.03099
Presenter: Fabio Zandanel

Title: A remarkably luminous galaxy at z=11.1 confirmed with Hubble Space Telescope grism spectroscopy
Authors: P.A. Oesch et al.
Links: http://arxiv.org/abs/1603.00461
Presenter: Mark Lovell

Title: Dark matter relic density from observations of supersymmetry at the ILC
Authors: Suvi-Leena Lehtinen, Mikael Berggren, Jenny List
Links: http://arxiv.org/abs/1602.08439
Presenter: Sebastian Liem


Title: Did LIGO detect dark matter?
Authors: S. Bird et al.
Links: http://arxiv.org/abs/1603.00464
Presenter: Richard Bartels

Monday, February 29, 2016

Monday, February 29

Title: Signatures of a Two Million Year Old Supernova in the Spectra of Cosmic Ray Protons, Antiprotons, and Positrons
Authors: Kachelriess et al.
Links: http://arxiv.org/abs/1504.06472
Presenter: Daniele Gaggero

Title: On the "GeV excess" in the diffuse Îł-ray emission towards the Galactic Center
Authors: Rui-zhi Yang, Felix Aharonian
Link: http://arxiv.org/abs/1602.06764
Presenter: Emma Storm

Title: Development of the Model of Galactic Interstellar Emission for Standard Point-Source Analysis of Fermi Large Area Telescope Data
Authors: F. Acero et al. (Fermi-LAT)
Link: http://arxiv.org/abs/1602.07246
Presenter: Christoph Weniger

Title: Is The Gamma-Ray Source 3FGL J2212.5+0703 A Dark Matter Subhalo?
Authors: Bridget Bertoni, Dan Hooper, Tim Linden
Link: http://arxiv.org/abs/1602.07303
Presenter: Suraj Krishnamurthy

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. BĂ©langer, 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