today in particle astrophysics

tipa -- 4/30/2009

Measurement of the Flux of Ultra High Energy Cosmic Rays by the Stereo Technique

Authors: R.U. Abbasi, T. Abu-Zayyad, M. Al-Seady, M. Allen, J.F. Amann, G. Archbold, K. Belov, J. W. Belz, D. R. Bergman, S.A. Blake, O.A. Brusova, G.W. Burt, C. Cannon, Z. Cao, W. Deng, Y.Fedorova, J. Findlay, C.B. Finley, R.C. Gray, W.F. Hanlon, C.M. Hoffman, M.H. Holzscheiter, G. Hughes, P. Huntemeyer, D. Ivanov, B.F. Jones, C.C.H. Jui, K. Kim, M.A. Kirn, E.C. Loh, M.M. Maestas, N. Manago, L.J. Marek, K. Martens, J.A.J. Matthews, J. N. Matthews, S.A. Moore, A. O'Neil, C.A. Painter, L. Perera, K. Reil, R. Riehle, M.D. Roberts, D. Rodriguez, M. Sasaki, S.R. Schnetzer, L.M. Scott, G. Sinnis, J.D. Smith, R. Snow, P. Sokolsky, R.W. Springer, B.T. Stokes, S.R. Stratton, J.R. Thomas, S.B. Thomas, G.B. Thomson, D. Tupa, L.R. Wiencke, A. Zech, B.K. Zhang, X. Zhang, Y.Zhang

Star Formation Histories, Abundances and Kinematics of Dwarf Galaxies in the Local Group

Authors: E. Tolstoy, V. Hill, M. Tosi

Discrete sources as the origin of the Galactic X-ray ridge emission

Authors: Revnivtsev M. (1,2), Sazonov S. (2,3), Churazov E. (3,2), Forman W. (4), Vikhlinin A. (4,2), Sunyaev R. (3,2) ((1) Excellence Cluster Universe, Garching, Germany; (2) IKI, Moscow, Russia, (3) MPA, Garching, Germany, (4) CfA, Cambridge, USA)

Seeing through the String Landscape - a String Hunter's Companion in Particle Physics and Cosmology

Authors: Dieter Lust

Authors: William H. Lee (1), Enrico Ramirez-Ruiz (2), Diego-Lopez-Camara (1) ((1) Instituto de Astronomia, UNAM, (2) Dept. of Astronomy and Astrophysics, UC Santa Cruz)

Inverse Compton constraints on the Dark Matter e+e- excesses

Authors: Marco Cirelli, Paolo Panci

Identifying Nearby UHECR Accelerators using UHE (and VHE) Photons

Authors: A. M. Taylor, J. A. Hinton, P. Blasi, M. Ave

Variability Timescales in the M87 Jet: Signatures of E-Squared Losses, Discovery of a Quasi-period in HST-1, and the Site of TeV Flaring

Authors: D. E. Harris (SAO), C. C. Cheung (GSFC), Lukasz Stawarz (KIP/Stanford), J. A. Biretta (STScI), E. S. Perlman (FIT)

classic papers of the week -- 102

Symmetries of baryons and mesons

Murray Gell-Mann (California Institute of Technology, Pasadena, CA)

Gravitational Collapse: The Role of General Relativity

R. Penrose (Department of Mathematics, Birkbeck College - London)

The Origin of the Moon

Cameron, A. G. W.; Ward, W. R. (Harvard College Observatory and Smithsonian Astrophysical Observatory, Cambridge, MA)

Satellite-sized planetesimals and lunar origin

Hartmann, W. K.; Davis, D. R. (Planetary Science Institute, Tucson, AZ)

tipa -- 4/24/2009

Hubble Space Telescope observations of an extraordinary flare in the M87 jet

Authors: Juan P. Madrid (McMaster U. Canada)

Multiple Spectral Splits of Supernova Neutrinos

Authors: Basudeb Dasgupta, Amol Dighe, Georg G. Raffelt, Alexei Yu. Smirnov

tipa -- 4/23/2009

Detection of Very High Energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06

Authors: F. Aharonian, et al. (HESS Collaboration)

Model in-dependence of electron and positron flux from Dark Matter

Authors: Michael Kuhlen, Dmitry Malyshev

tipa -- 4/22/2009

Measurement of the \nu_\mu charged current \pi^+ to quasi-elastic cross section ratio on mineral oil in a 0.8 GeV neutrino beam

Authors: A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, S. J. Brice, B. C. Brown, L. Buge, J. Cao, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, T. L. Hart, E. Hawker, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, Y. Liu, W. C. Louis, K. B. M. Mahn, W. Marsh, V. T. McGary, G. McGregor, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, R. H. Nelson, P. Nienaber, J. A. Nowak, B. Osmanov, S. Ouedraogo, R. B. Patterson, D. Perevalov, C. C. Polly, E. Prebys, J. L. Raaf, H. Ray, B. P. Roe, A. D. Russell, V. Sandberg, R. Schirato, D. Schmitz, M. H. Shaevitz, F. C. Shoemaker, D. Smith, M. Soderberg, M. Sorel, P. Spentzouris, J. Spitz, I. Stancu, R. J. Stefanski, M. Sung, H. A. Tanaka, R. Tayloe, M. Tzanov, R. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, H. J. Yang, G. P. Zeller, E. D. Zimmerman

On the constancy of the high-mass slope of the initial mass function

Authors: Paul C. Clark, Simon C.O. Glover, Ian A. Bonnell, Ralf S. Klessen

The Pulsar Contribution to the Gamma-Ray Background

Authors: C.-A. Faucher-Giguere, Abraham Loeb (Harvard University)

tipa -- 4/21/2009

Very high efficiency photospheric emission in long duration gamma-ray bursts

Authors: Davide Lazzati (NCSU), Brian J. Morsony (Wisconsin), Mitch Begelman (JILA)

On The Maximum Mass of Stellar Black Holes

Authors: Krzysztof Belczynski, Tomasz Bulik, Chris L. Fryer, Ashley Ruiter, Jorick S. Vink, Jarrod R. Hurley

The Scientific Life Of John Bahcall

Authors: W. C. Haxton

Molecular Clouds as Cosmic-Ray Barometers

Authors: S. Casanova, F. A. Aharonian, Y. Fukui, S. Gabici, D. I. Jones, A. Kawamura, T. Onishi, G. Rowell, K. Torii, H. Yamamoto

Evidence of a non-baryonic composition in GRB 080916C

Authors: Bing Zhang (UNLV), Asaf Pe'er (STScI)

The density, the cosmic microwave background, and the proton-to-electron mass ratio in a cloud at redshift 0.9

Authors: C. Henkel, K.M. Menten, M.T. Murphy, N. Jethava, V.V. Flambaum, J.A. Braatz, S. Muller, J. Ott, R.Q. Mao

The Thermal Abundance of Semi-Relativistic Relics

Authors: Manuel Drees, Mitsuru Kakizaki, Suchita Kulkarni

Relativistic Cyclotron Radiation Detection of Tritium Decay Electrons as a New Technique for Measuring the Neutrino Mass

Authors: Benjamin Monreal (1), Joseph A. Formaggio (2) ((1) University of California, Santa Barbara, (2) Massachusetts Institute of Technology)

tipa -- 4/20/2009

Detection of Gamma-ray Emission from the Eta-Carinae Region

Authors: M. Tavani, S. Sabatini, E. Pian, A. Bulgarelli, P. Caraveo, R.F. Viotti, M.F. Corcoran, A. Giuliani, C. Pittori, F. Verrecchia, S. Vercellone, S. Mereghetti, A. Argan, G. Barbiellini, F. Boffelli, P. W. Cattaneo, A. W. Chen, V. Cocco, F. D'Ammando, E. Costa, G. De Paris, E. Del Monte, G. Di Cocco, I. Donnarumma, Y. Evangelista, A. Ferrari, M. Feroci, M. Fiorini, T. Froysland, F. Fuschino, M. Galli, F. Gianotti, C. Labanti, I. Lapshov, F. Lazzarotto, P. Lipari, F. Longo, M. Marisaldi, M. Mastropietro, E. Morelli, E. Moretti, A. Morselli, L. Pacciani, A. Pellizzoni, F. Perotti, G. Piano, P. Picozza, M. Pilia, G. Porrovecchio, G. Pucella, M. Prest, M. Rapisarda, A. Rappoldi, A. Rubini, P. Soffitta, M. Trifoglio, A. Trois, E. Vallazza, V. Vittorini, A. Zambra, D. Zanello, P. Santolamazza, P. Giommi, S. Colafrancesco, L.A. Antonelli, L. Salotti

On electromagnetic instabilities at ultra-relativistic shock waves

Authors: Martin Lemoine (IAP), Guy Pelletier (LAOG)

Constraints on the Extragalactic Background Light from Very High Energy Gamma-Ray Observations of Blazars

Authors: Justin D. Finke, Soebur Razzaque

classic papers of the week -- 101

Resonant amplification of neutrino oscillations in matter and solar neutrino spectroscopy

S.P. Mikheev, A.Yu. Smirnov (Institute for Nuclear Research of Academy of Sciences, 60th October Anniversary prosp. 7a, 117 342 Moscow, USSR)

The Story of Helium

Part II

J. Norman Lockyer, C.B., F.R.S.

A Letter from the Reverend Mr. James Bradley Savilian Professor of Astronomy at Oxford, and F.R.S. to Dr.Edmond Halley Astronom. Reg. &c. Giving an Account of a New Discovered Motion of the Fix'd Stars

James Bradley

tipa -- 4/17/2009

Discovery of a bright radio transient in M82: a new radio supernova?

Authors: A. Brunthaler (1), K.M. Menten (1), M.J. Reid (2), C. Henkel (1), G.C. Bower (3), H. Falcke (4,5) ((1) Max-Planck-Institut fuer Radioastronomie, (2) Harvard-Smithsonian Center for Astrophysics, (3) UC Berkeley (4) Universiteit Nijmegen, (5) ASTRON)

The first outburst of the new magnetar candidate SGR 0501+4516

Authors: Nanda Rea, GianLuca Israel, Roberto Turolla, Paolo Esposito, Sandro Mereghetti, Diego Gotz, Silvia Zane, Andrea Tiengo, Kevin Hurley, Marco Feroci, Martin Still, Vladimir Yershov, Christoph Winkler, Rosalba Perna, Federico Bernardini, Pietro Ubertini, Luigi Stella, Sergio Campana, Michiel van der Klis, Peter M. Woods

tipa -- 4/14/2009

A Search for Electron Antineutrino Appearance at the $\Delta m^2 \sim$ 1 $\mathrm{eV}^{2}$ Scale

Authors: A. A. Aguilar-Arevalo, C. E. Anderson, S. J. Brice, B. C. Brown, L. Bugel, J. M. Conrad, Z. Djurcic, B. T. Fleming, R. Ford, F. G. Garcia, G. T. Garvey, J. Gonzales, J. Grange, C. Green, J. A. Green, R. Imlay, R. A. Johnson, G. Karagiorgi, T. Katori, T. Kobilarcik, S. K. Linden, W. C. Louis, K. B. M. Mahn, W. Marsh, C. Mauger, V. T. McGary, W. Metcalf, G. B. Mills, C. D. Moore, J. Mousseau, R. H. Nelson, P. Nienaber, J. A. Nowak, B. Osmanov, Z. Pavlovic, D. Perevalov, C. C. Polly, H. Ray, B. P. Roe, A. D. Russell, M. H. Shaevitz, M. Sorel, J. Spitz, I. Stancu, R. J. Stefanski, R. Tayloe, M. Tzanov, R. G. Van de Water, M. O. Wascko, D. H. White, M. J. Wilking, G. P. Zeller, E. D. Zimmerman

Short Gamma Ray Bursts and their Afterglow Signatures in Dense Stellar Systems

Authors: Rion K. Parsons, Enrico Ramirez-Ruiz, William H. Lee

Episodic Random Accretion and the Cosmological Evolution of Supermassive Black Hole Spins

Authors: J.-M. Wang (1), C. Hu (1), Y.-R. Li (1), Y.-M. Chen (1), A. R. King (2), A. Marconi (3), L. C. Ho (4), C.-S. Yan (1), R. Staubert (5), S. Zhang (1) (1 IHEP, Beijing; 2 Leicester; 3 Florence, Italy; 4 OCIW, USA; 5 Tuebingen, Germany)

Fermi Discovery of Gamma-Ray Emission from NGC 1275

Authors: The Fermi/LAT Collaboration: A. A. Abdo, et al, H.D. Aller, M.F. Aller, K.I. Kellermann, Y.Y. Kovalev, Y.A. Kovalev, M. L. Lister, A. B. Pushkarev

The Breaking Strain of Neutron Star Crust and Gravitational Waves

Authors: C. J. Horowitz (Indiana), Kai Kadau (LANL)

Big Bang Nucleosynthesis: The Strong Force meets the Weak Anthropic Principle

Authors: J. MacDonald, D. J. Mullan

tipa -- 4/13/2009

Luminous Thermal Flares from Quiescent Supermassive Black Holes

Authors: Suvi Gezari, Tim Heckman, S. Bradley Cenko, Michael Eracleous, Karl Forster, Thiago S. Goncalves, D. Chris Martin, Patrick Morrissey, Susan G. Neff, Mark Seibert, David Schiminovich, Ted K. Wyder

Supernova Propagation And Cloud Enrichment: A new model for the origin of $^{60}$Fe in the early solar system

Authors: M. Gounelle, A. Meibom, P. Hennebelle, S.-I. Inutsuka

Suzaku Detection of Super-hard X-ray Emission from the Classical Nova V2491 Cygni

Authors: D. Takei, M. Tsujimoto, S. Kitamoto, J.-U. Ness, J. J. Drake, H. Takahashi, K. Mukai

classic papers of the week -- 100

On gamma-ray astronomy

P. Morrison (Department of Physics, Cornell University, Ithaca, NY)

Remarks on the unified model of elementary particles

Z. Maki, M. Nakagawa, S. Sakata (Institute for Theoretical Physics, Nagoya University)

Game Theory

Herman Kahn, Irwin Mann (RAND Corporation)

tipa -- 4/10/2009

The molecular gas content of z > 6.5 Lyman-alpha emitters

Authors: Jeff Wagg, Nissim Kanekar, Chris Carilli (NRAO-Socorro)

tipa -- 4/9/2009

Over half of the far-infrared background light comes from galaxies at z >= 1.2

Authors: Mark J. Devlin, Peter A. R. Ade, Itziar Aretxaga, James J. Bock, Edward L. Chapin, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Peter C. Hargrave, David H. Hughes, Jeff Klein, Gaelen Marsden, Peter G. Martin, Philip Mauskopf, Lorenzo Moncelsi, Calvin B. Netterfield, Henry Ngo, Luca Olmi, Enzo Pascale, Guillaume Patanchon, Marie Rex, Douglas Scott, Christopher Semisch, Nicholas Thomas, Matthew D. P. Truch, Carole Tucker, Gregory S. Tucker, Marco P. Viero, Donald V. Wiebe

BLAST: A Far-Infrared Measurement of the History of Star Formation

Authors: Enzo Pascale, Peter A. R. Ade, James J. Bock, Edward L. Chapin, Mark J. Devlin, Simon Dye, Steve A. Eales, Matthew Griffin, Joshua O. Gundersen, Mark Halpern, Peter C. Hargrave, David H. Hughes, Jeff Klein, Gaelen Marsden, Philip Mauskopf, Lorenzo Moncelsi, Calvin B. Netterfield, Luca Olmi, Guillaume Patanchon, Marie Rex, Douglas Scott, Christopher Semisch, Nicholas Thomas, Matthew D. P. Truch, Carole Tucker, Gregory S. Tucker, Marco P. Viero, Donald V. Wiebe

Suzaku Observations of PSR B1259-63: A New Manifestation of Relativistic Pulsar Wind

Authors: Yasunobu Uchiyama (SLAC/KIPAC), Takaaki Tanaka (SLAC/KIPAC), Tadayuki Takahashi (ISAS/JAXA), Koji Mori (Miyazaki U.), Kazuhiro Nakazawa (U. Tokyo)

The Population of Viscosity- and Gravitational Wave-Driven Supermassive Black Hole Binaries Among Luminous AGN

Authors: Zoltán Haiman (Columbia University), Bence Kocsis (IAS, Princeton; Harvard University; and Eötvös Loránd University), Kristen Menou (Columbia University)