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, December 14, 2015

Monday, December 14

Title: Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web
Authors: D. Eckert
Links: http://arxiv.org/abs/1512.00454
Presenter: Fabio Zandanel

Title: Deep XMM Observations of Draco rule out a dark matter decay origin for the 3.5 keV line (or: how we learned to stop worrying and love bananas after all)
Authors: Jeltema & Profumo
Link: http://arxiv.org/pdf/1512.01239.pdf
Presenter: Richard Bartels

Title: Hawking radiation, the Stefan-Boltzmann law, and unitarization
Authors: S. Giddings
Links: http://arxiv.org/pdf/1511.08221.pdf
Presenter: Fotis Dimitrakopoulos

Title: Improved WIMP scattering limits from the LUX experiment
Authors: LUX
Links: http://arxiv.org/pdf/1512.03506.pdf
Presenter: Christopher McCabe & Patrick Decowski

Title: Determining the local dark matter density with LAMOST data
Authors: Xia et al
Link: http://arxiv.org/pdf/1510.06810.pdf
Presenter: Hamish Silverwood




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

Saturday, October 31, 2015

Monday, November 2


Title: Evidence for Thermal X-Ray Line Emission from the Synchrotron-Dominated Supernova Remnant RX J1713.7-3946
Authors: Katsuda, Acero et al.
Links: http://arxiv.org/abs/1510.04025
Presenter: Jacco Vink

Title: A bright gamma-ray Galactic Centre excess and dark dwarfs: strong tension for Dark Matter annihilation despite Milky Way halo profile and diffuse emission uncertainties
Authors: K. N. Abazajian and R. E. Keeley
Links: http://arxiv.org/pdf/1510.06424.pdf
Presenter: Mattia Fornasa

Title: Dark matter implications of the WMAP-Planck Haze
Authors: Andrey E. Egorov, Jennifer M. Gaskins, Elena Pierpaoli, Davide Pietrobon
Link: http://arxiv.org/abs/1509.05135
Presenter: Jennifer Gaskins

Title: Scalar Dark Matter: Direct vs. Indirect Detection
Authors: Michael Duerr, Pavel Fileviez Pérez, and Juri Smirnov
Links: http://arxiv.org/pdf/1509.04282v1.pdf
Presenter: Thomas Edwards

Title: Future sensitivity of neutrino telescopes to dark matter annihilations from the cosmic diffuse neutrino signal.
Authors: Ángeles Moliné, Alejandro Ibarra, Sergio Palomares-Ruiz.
Links: http://arxiv.org/abs/1412.4308
Presenter: Roberta Diamanti

Saturday, October 24, 2015

Monday, October 26 

Title: The extragalactic background light, the Hubble constant, and anomalies: conclusions from 20 years of TeV gamma-ray observations
Authors: J. Biteau, D. Williams
Link: arXiv:1502.04166
Presenter: David Berge

Title: Neutron Star Merger Ejecta as Obstacles to Neutrino-Powered gamma-ray Bursts
Authors: Oliver Just, Martin Obergaulinger, H. Thomas Janka, Andreas Bauswein, Nicole Schwarz
Link: http://arxiv.org/pdf/1510.04288
Presenter: Patrick Crumley

Title: The scaling relations and the fundamental plane for radio halos and relics of galaxy clusters
Authors: Z. S. Yuan, J.L. Huan, Z. L. Wen
Links: http://arxiv.org/abs/1510.04980
Presenter: Emma Storm

Title: Two papers addressing the Leptophilic Dark Matter interpretation of XENON100 data
Authors: XENON100 Collaboration
Links: http://arxiv.org/abs/1507.07747, http://arxiv.org/abs/1507.07748 (back-to-back)
Presenter: Patrick Decowski

Friday, October 16, 2015

Monday, October 19

Title: Disrupted Globular Clusters can Explain the Galactic Center Gamma Ray Excess
Authors: Brandt & Kocsis
Link: http://arxiv.org/abs/1507.05616
Presenter: Christoph Weniger

Title: Search for extended gamma-ray emission from the Virgo galaxy cluster with Fermi-LAT
Authors: Fermi Collaboration
Presenter: Fabio Zandanel

Title: On the segregation of dark matter substructure
Authors: Frank C. van den Bosch, Fangzhou Jiang, Duncan Campbell, Peter Behroozi
Presenter: Mark Lovell

Title: MC^2: Mapping the DM distribution of the “Toothbrush” cluster
Authors: James Jee, William Dawson, Andra Stroe et al.
Link: http://arxiv.org/abs/1510.03486
Presenter: Richard Bartels

Friday, October 9, 2015

Monday, October 12

Title: The Galaxy Cluster Concentration-Mass Scaling Relation
Authors: A.M. Groener, D.M. Goldberg, and M. Sereno
Presenter: Michael Feyereisen

Title: S3 symmetry and the CKM matrix
Authors: Dipankar Das, Ujjal Kumar Dey and Palash Pal
Presenter: Richard Bartels

Title: Cosmological Relaxation of the Electroweak Scale
Authors:  Peter Graham et al
Link: 1504.07551
Presenter: Christopher McCabe


Title: Implications of unitarity and gauge invariance for simplified dark matter models
Authors: Felix Kahlhoefer, Kai Schmidt-Hoberg, Thomas Schwetz and Stefan Vogl
Presenter: Sebastian Liem

Friday, October 2, 2015

Monday, October 5

Title: A unified multi-wavelength model of galaxy formation
Authors: Cedric Lacey, Carlton Baugh, Carlos Frenk ++
Presenter: Mark Lovell

Title: Do radio mini-halos and gas heating in cool-core clusters have a common origin?
Authors: Luca Bravi, Myriam Gitti, and Gianfranco Brunetti
Presenter: Fabio Zandanel

Title: Observation of the new line at ~3.55 keV in X-ray spectra of galaxies
Authors: Dmytro Iakubovskyi
Presenter: Ralph Wijers
 
Title: A non-parametric method for measuring the local dark matter density
Authors:  Hamish Silverwood, Sofia Sivertsson, Pascal Steger, Justin I. Read, Gianfranco Bertone
Link: http://arxiv.org/abs/1507.08581
Presenter: Hamish Silverwood

Title: S3 symmetry and the CKM matrix
Authors: Dipankar Das, Ujjal Kumar Dey and Palash Pal
Presenter: Richard Bartels

Authors:  Peter Graham et al
Link: 1504.07551
Presenter: Christopher McCabe



Monday, June 29, 2015

Monday, May 29

Monday, June 22, 2015

Monday, 22 June 2015

  • Baryonic impact on the dark matter distribution in Milky Way-size galaxies and their satellites. Zhu et al, http://arxiv.org/pdf/1506.05537v1.pdf [Mark]
  • Modelling the flux distribution function of the extragalactic gamma-ray background from dark matter annihilation, Feyereisen et al. http://arxiv.org/pdf/1506.05118v1.pdf [Michael]
  • Probing Light Dark Matter via Evaporation from the Sun, Kouvaris, http://arxiv.org/pdf/1506.04316.pdf [Chris]
  • A black hole window into p-wave dark matter annihilation, Shelton et al., http://arxiv.org/pdf/1506.04143.pdf [Chris]
  • A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay, The Daya Bay Collab, http://arxiv.org/pdf/1505.03456.pdf [Patrick]
  • The Galactic Center GeV Excess from a Series of Leptonic Cosmic-Ray Outbursts, Cholis et al., http://arxiv.org/pdf/1506.05119v1.pdf [Francesca]

Sunday, May 31, 2015

Monday, 1st June 2015

  • A Hidden Dark Matter Sector, Dark Radiation, and the CMB, Chacko et al., http://arxiv.org/abs/1505.04192 [Roberta]
  • The offsets between galaxies and their dark matter in ΛCDM, Schaller et al., http://arxiv.org/abs/1505.05470 [Mark]
  • The Copernicus Complexio: a high-resolution view of the small-scale Universe, Hellwing et al., http://arxiv.org/abs/1505.06436 [Mark]
  • Exploring dark matter microphysics with galaxy surveys, Escudero et al., http://arxiv.org/abs/1505.06735 [Richard]
  • Search for Dark Matter Annihilation in the Galactic Center with IceCube-79, IceCube Collab., http://arxiv.org/abs/1505.07259 [Francesca]

Monday, May 18, 2015

Monday 18 May 2015 








            Monday, April 20, 2015

            Monday, Apr 20

            Sunday, April 12, 2015

            Monday, April 13, 2015

            • The unexpected diversity of dwarf galaxy rotation curves. Omen et al. http://arxiv.org/abs/1504.01437 [Mark]
            • The Milky Way system in Lambda CDM cosmological simulations. Guo et al. http://arxiv.org/abs/1503.08508 [Mark]
            • Examining the Fermi-LAT 3rd source catalog in search of dark matter subhalos. Bertoni et al. http://arxiv.org/abs/1504.02087 [Djoeke]
            • TOMOGRAPHY OF THE FERMI-LAT γ-RAY DIFFUSE EXTRAGALACTIC SIGNAL VIA CROSS-CORRELATIONS WITH GALAXY CATALOGS. Xia et al. http://arxiv.org/abs/1503.05918 [Mattia]
            • Search for Neutrinoless Double-Beta Decay of 130Te with CUORE-0. Alfonso et al. http://arxiv.org/abs/1504.02454v1 [Patrick]

            Sunday, March 29, 2015

            Monday, March 30, 2015 

            • Search for an invisibly decaying Higgs boson, ATLAS Collaboration, https://cds.cern.ch/record/2002121/files/ATLAS-CONF-2015-004.pdf [David]
            • Cosmological Collider Physics, N. Arkani-Hamed and J. Maldacena, http://arxiv.org/pdf/1503.08043v1.pdf [I-Sheng]
            • How the Weak Variance of Momentum Can Turn Out to be Negative, M. Feyereisen, http://arxiv.org/pdf/1503.07309v1.pdf [Michael]
            • Estimating the Galactic Mass Profile in the Presence of Incomplete Data, G. M. Eadie et al., http://arxiv.org/pdf/1503.07176v1.pdf [Nassim and Mark]


            Sunday, March 22, 2015

            Monday, March 23, 2015

            • Planes of satellite galaxies and the cosmic web, N. Libeskind et al., http://arxiv.org/pdf/1503.05915v1.pdf [Mark]
            • Latest results on rare decays from LHCb, LHCb Collaboration, https://indico.in2p3.fr/event/10819/session/10/contribution/84/material/slides/0.pdf [Richard]
            •  Dark Matter Directionality Revisited with a High Pressure Xenon Gas Detector, G. Mohlabeng et al., http://arxiv.org/pdf/1503.03937v1.pdf [Nassim]

            Monday, March 16, 2015

            Monday, Mar 16

            Monday, March 9, 2015

            Monday, Mar 9

            Monday, March 2, 2015

            Monday, March 2, 2015

            Sunday, February 22, 2015

            Monday, February 23, 2015
            • The alignment of satellite galaxies and cosmic filaments: observations and simulationsE. Tempel et al., http://arxiv.org/abs/1502.02046
            • Evidence for a pressure discontinuity at the position of the Coma relic from Planck Sunyaev-Zel'dovich effect data, J. Erler et alhttp://arxiv.org/abs/1411.5476

            Sunday, February 15, 2015

            Monday, February 16, 2015

            • Planck 2015 results. XIII. Cosmological parameters. Planck Collaboration, http://arxiv.org/abs/1502.01589 [Gianfranco]
            • A Joint Analysis of BICEP 2 and Planck Data, Bicep and Planck Collaborations, http://arxiv.org/abs/1502.00612.pdf ,
              http://www.preposterousuniverse.com/blog/2015/02/06/the-state-of-the-early-universe/#more-12347 [Ben]
            • Forged in FIRE: cusps, cores, and baryons in low-mass dwarf galaxies, J. Onorbe et al., http://arxiv.org/abs/1502.02036 . The alignment of satellite galaxies and cosmic filaments: observations and simulations, E. Tempel et al., http://arxiv.org/abs/1502.02046 . Estimating the dark matter halo mass of our Milky Way using dynamical tracers, W. Wang et al., http://arxiv.org/abs/1502.03477 [Mark]


               

               


             

            Sunday, February 8, 2015

            Monday, February 9, 2015
            • Search for gamma-ray emission from dark matter annihilation in the Large Magellanic Cloud with the Fermi-LAT, Buckley et al. http://arxiv.org/abs/1502.01020 [Jenny]
            • Dark Matter From Spacetime Nonlocality, Saravani et al. http://arxiv.org/pdf/1502.01655v1.pdf [Fotis]
            • Signals from dark atom formation in halos, Pearce et al. http://arxiv.org/pdf/1502.01755.pdf [Kallia]
            • Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at Sqrt[s] = 8 TeV with the ATLAS detector., ATLAS Collab http://arxiv.org/abs/1502.01518 [David B.]
            • Planck 2015 results. XIII. Cosmological parameters. Planck Collab http://arxiv.org/abs/1502.01589 [Gianfranco]

            Sunday, February 1, 2015

            Monday, February 2, 2015

            • Neutrino induced decoherence and variation in nuclear decay rates, D. Sinngleton, N. Inan, R. Chiao, http://arxiv.org/abs/1501.07665 [Richard]
            • Discovery of an OB Runaway Star Inside SNR S147, B. Dincel et al., http://arxiv.org/abs/1501.07220 [Jacco]

            Monday, January 26, 2015

            Monday, Jan 26

            Sunday, January 18, 2015

            Monday, January 19, 2015

            • Gamma-ray halo around the M31 galaxy as seen by the Fermi LATM.S. Pshirkov, V.V. Vasiliev, K.A. Postnov, http://arxiv.org/abs/1501.03460 [Jacco]
            • Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in pp collisions at sqrt(s) = 8 TeV, ATLAS Collaboration, http://arxiv.org/abs/1501.04020v1 [David]
            • Fermi/LAT observations of Dwarf Galaxies highly constrain a Dark Matter Interpretation of Excess Positrons seen in AMS-02, HEAT, and PAMELA, A. Lopez, C. Savage, D. Spolyar, D. Adams http://arxiv.org/abs/1501.01618 [Hamish] 
            • Aymptotically Safe Dark Matter, F. Sannino, I. M. Shoemaker, http://arxiv.org/abs/1412.8034 [Richard]




            Monday, January 12, 2015

            Monday, Jan 12