today in particle astrophysics

tipa -- 4/28/2011

A Spitzer Survey for Dust in Type IIn Supernovae

Authors: Ori D. Fox (1), Roger A. Chevalier (2), Michael F. Skrutskie (2), Alicia M. Soderberg (3), Alexei V. Filippenko (4), Mohan Ganeshalingam (4), Jeffrey M. Silverman (4), Nathan Smith (4,5), Thea N. Steele (4) ((1) NASA Goddard Space Flight Center, (2) UVA, (3) Harvard-CfA, (4) UC Berkeley, (5) U Arizona/Steward)

GeV Emission from Collisional Magnetized Gamma Ray Bursts

Authors: P. Mészáros, M.J. Rees

The Mass and Radius of the Neutron Star in the Bulge Low-Mass X-ray Binary KS 1731-260

Authors: Feryal Ozel, Andrew Gould, Tolga Guver

Halo concentrations in the standard LCDM cosmology

Authors: Francisco Prada, Anatoly A. Klypin, Antonio J. Cuesta, Juan E. Betancort-Rijo, Joel Primack

XRF 100316D / SN 2010bh and the Nature of Gamma Ray Burst Supernovae

Authors: Z. Cano, D. Bersier, C. Guidorzi, S. Kobayashi, A. J. Levan, N. R. Tanvir, K. Wiersema, P. D'Avanzo, A. S. Fruchter, P. Garnavich, A. Gomboc, J. Gorosabel, D. Kasen, D. Kopac, R. Margutti, P. A. Mazzali, A. Melandri, C. G. Mundell, P. E. Nugent, E. Pian, R. J. Smith, I. Steele, R. A. M. J. Wijers, S. E. Woosley

Gamma-ray halos as a measure of intergalactic magnetic fields: a classical moment problem

Authors: Markus Ahlers

A Search for a Diffuse Flux of Astrophysical Muon Neutrinos with the IceCube 40-String Detector

Authors: IceCube Collaboration

tipa -- 4/27/2011

Chandra X-ray spectroscopy of the very early O supergiant HD 93129A: constraints on wind shocks and the mass-loss rate

Authors: David H. Cohen (1), Marc Gagné (2), Maurice A. Leutenegger (3,4), James P. MacArthur (1), Emma E. Wollman (1,5), Jon O. Sundqvist (6), Alex W. Fullerton (7), Stanley P. Owocki (6) ((1) Swarthmore College (2) West Chester University (3) NASA/Goddard Space Flight Center (4) CRESST and University of Maryland, Baltimore County (5) Caltech, Department of Physics (6) University of Delaware, Bartol Research Institute (7) Space Telescope Science Institute)

Discovery of the Onset of Rapid Accretion by a Dormant Massive Black Hole

Authors: D. N. Burrows, J. A. Kennea, G. Ghisellini, V. Mangano, B. Zhang, K. L. Page, M. Eracleous, P. Romano, T. Sakamoto, A. D. Falcone, J. P. Osborne, S. Campana, A. P. Beardmore, A. A. Breeveld, M. M. Chester, R. Corbet, S. Covino, J. R. Cummings, P. D'Avanzo, V. D'Elia, P. Esposito, P. A. Evans, D. Fugazza, J. M. Gelbord, K. Hiroi, S. T. Holland, K. Y. Huang, M. Im, G. Israel, Y. Jeon, Y.-B. Jeon, N. Kawai, H. A. Krimm, P. Mészáros, H. Negoro, N. Omodei, W.-K. Park, J. S. Perkins, M. Sugizaki, H.-I. Sung, G. Tagliaferri, E. Troja, Y. Ueda, Y. Urata, R. Usui, L. A. Antonelli, S. D. Barthelmy, G. Cusumano, P. Giommi, F. E. Marshall, A. Melandri, M. Perri, J. L. Racusin, B. Sbarufatti, M. H. Siegel, N. Gehrels

A New Evolutionary Phase of Supernova Remnant 1987A

Authors: Sangwook Park (UT Arlinton), Svetozar A. Zhekov (STRI), David N. Burrows (Penn State), Judith L. Racusin (GSFC), Daniel Dewey (MIT), Richard McCray (Colorado)

V-FASTR: The VLBA Fast Radio Transients Experiment

Authors: Randall B. Wayth, Walter F. Brisken, Adam T. Deller, Walid A. Majid, David R. Thompson, Steven J. Tingay, Kiri L. Wagstaff

Radio-Optical-Gamma-Ray properties of MOJAVE AGN detected by Fermi/LAT

Authors: T.G. Arshakian, J. León-Tavares, M. Boettcher, J. Torrealba, V.H. Chavushyan, M.L. Lister, E. Ros, J.A. Zensus

Spin Tilts in the Double Pulsar Reveal Off-Center Supernova Kick and Tumble

Authors: Will M. Farr, Kyle Kremer, Maxim Lyutikov, Vassiliki Kalogera

Spatial variation of fundamental couplings and Lunar Laser Ranging

Authors: Thibault Damour, John F. Donoghue

Confinement of antihydrogen for 1000 seconds

Authors: ALPHA Collaboration

Sweet, P. A. (University of London Observatory)

Coherent effects of a weak neutral current

Freedman, Daniel Z. (National Accelerator Laboratory, Batavia, IL and Institute for Theoretical Physics, State University of New York, Stony Brook)

On the Dynamics of Revolving Fluids

Lord Rayleigh, O.M., F.R.S.

tipa -- 4/22/2011

Discovery of a Multiply-Lensed Submillimeter Galaxy in Early HerMES Herschel/SPIRE Data

Authors: A. Conley, A. Cooray, J.D. Vieira, E.A. González Solares, S. Kim, J.E. Aguirre, A. Amblard, R. Auld, A.J. Baker, A. Beelen, A. Blain, R. Blundell, J. Bock, C.M. Bradford, C. Bridge, D. Brisbin, D. Burgarella, J.M. Carpenter, P. Chanial, E. Chapin, N. Christopher, D.L. Clements, P. Cox, S.G. Djorgovski, C.D. Dowell, S. Eales, L. Earle, T.P. Ellsworth-Bowers, D. Farrah, A. Franceschini, D. Frayer, H. Fu, R. Gavazzi, J. Glenn, M. Griffin, M.A. Gurwell, M. Halpern, E. Ibar, R.J. Ivison, M. Jarvis, J. Kamenetzky, M. Krips, L. Levenson, R. Lupu, A. Mahabal, P.D. Maloney, C. Maraston, L. Marchetti, G. Marsden, H. Matsuhara, A.M.J. Mortier, E. Murphy, B.J. Naylor, R. Neri, H.T. Nguyen, S.J. Oliver, A. Omont, M.J. Page, A. Papageorgiou, C.P. Pearson, I. Pérez-Fournon, M. Pohlen, N. Rangwala, J.I. Rawlings, G. Raymond, D. Riechers, G. Rodighiero, I.G. Roseboom, M. Rowan-Robinson, B. Schulz, Douglas Scott, K. Scott, P. Serra, N. Seymour, D.L. Shupe, A.J. Smith, M. Symeonidis, K.E. Tugwell, M. Vaccari, E. Valiante, I. Valtchanov, A. Verma, M.P. Viero, L. Vigroux, L. Wang, D. Wiebe, G. Wright, C.K. Xu, G. Zeimann, M. Zemcov, J. Zmuidzinas

Magnetic Helicity Conservation and Inverse Energy Cascade in Electron Magnetohydrodynamic Wave Packets

Authors: Jungyeon Cho

Implication of the striped pulsar wind model for gamma-ray binaries

Authors: Jérôme Pétri, Guillaume Dubus

The Hard X-ray Emission of Cen A

Authors: V. Beckmann (1), P. Jean (2), P. Lubinski (3), S. Soldi (4), R. Terrier (1) ((1) Francois Arago Centre, APC, (2) Universite de Toulouse, CNRS/IRAP, (3) CAMK Torun, (4) CEA/Saclay)

Polarized Gamma-ray Emission from the Galactic Black Hole Cygnus X-1

Authors: P. Laurent, J. Rodriguez, J. Wilms, M. Cadolle Bel, K. Pottschmidt, V. Grinberg

New evaluation of neutron lifetime from UCN storage experiments and beam experiments

Authors: A. P. Serebrov, A. K. Fomin

The First Year of the Large Hadron Collider: A Brief Review

Authors: Gregor Herten

tipa -- 4/21/2011

The First Massive Black Hole Seeds and Their Hosts

Authors: Jillian Bellovary, Marta Volonteri, Fabio Governato, Sijing Shen, Thomas Quinn, James Wadsley

No collective neutrino flavor conversions during the supernova accretion phase

Authors: Sovan Chakraborty (Hamburg U., II Inst. Theor. Phys.), Tobias Fischer (GSI & Technische Univ. Darmstadt), Alessandro Mirizzi (Hamburg U., II Inst. Theor. Phys.), Ninetta Saviano (Hamburg U., II Inst. Theor. Phys.), Ricard Tomas (Hamburg U., II Inst. Theor. Phys.)

Active to sterile neutrino mixing limits from neutral-current interactions in MINOS

Authors: MINOS Collaboration

tipa -- 4/20/2011

Is the Spectrum of Gravitational Waves the "Holy Grail" of Inflation?

Authors: Robert H. Brandenberger (McGill University)

Fermi gamma-ray `bubbles' from stochastic acceleration of electrons

Authors: Philipp Mertsch, Subir Sarkar (Oxford)

The Effect of a Cosmic Ray Precursor in SN 1006?

Authors: Cara E. Rakowski, J. Martin Laming, Una Hwang, Kristoffer A. Eriksen, Parviz Ghavamian, John P. Hughes

A new measure of the dissipation region in collisionless magnetic reconnection

Authors: Seiji Zenitani, Michael Hesse, Alex Klimas, Masha Kuznetsova

W/Z Bremsstrahlung as the Dominant Annihilation Channel for Dark Matter, Revisited

Authors: Nicole F. Bell, James B. Dent, Ahmad J. Galea, Thomas D. Jacques, Lawrence M. Krauss, Thomas J. Weiler

Precise measurement of parity violation in polarized muon decay

Authors: TWIST Collaboration

Measurement of the Double Beta Decay Half-life of 130Te with the NEMO-3 Detector

Authors: NEMO Collaboration

tipa -- 4/19/2011

External Mass Accumulation onto Core Potentials: Implications for Star Clusters, Galaxies and Galaxy Clusters

Authors: J. P. Naiman, Enrico Ramirez-Ruiz, Douglas N. C. Lin

The Milky Way stellar halo out to 40 kpc : Squashed, broken but smooth

Authors: A.J. Deason (Cambridge), V. Belokurov (Cambridge), N. W. Evans (Cambridge)

A relativistic jetted outburst from a massive black hole fed by a tidally disrupted star

Authors: Joshua S. Bloom, Dimitrios Giannios, Brian D. Metzger, S. Bradley Cenko, Daniel A. Perley, Nathaniel R. Butler, Nial R. Tanvir, Andrew J. Levan, Paul T. O' Brien, Linda E. Strubbe, Fabio De Colle, Enrico Ramirez-Ruiz, William H. Lee, Sergei Nayakshin, Eliot Quataert, Andrew R. King, Antonino Cucchiara, James Guillochon, Geoffrey C. Bower, Andrew S. Fruchter, Adam N. Morgan, Alexander J. van der Horst

An extremely luminous panchromatic outburst from the nucleus of a distant galaxy

Authors: A. J. Levan, N. R. Tanvir, S. B. Cenko, D. A. Perley, K. Wiersema, J. S. Bloom, A. S. Fruchter, A. de Ugarte Postigo, P. T. O'Brien, N. Butler, A. J. van der Horst, G. Leloudas, A. N. Morgan, K. Misra, G. Bower, J. Farihi, R. L. Tunnicliffe, M. Modjaz, J. M. Silverman, J. Hjorth, C. Thoene, A. Cucchiara, J. M. Castro Ceron, A. Castro-Tirado, J. A. Arnold, M. Bremer, J. P. Brodie, T. Carroll, M. C. Cooper, P. A. Curran, R. M. Cutri, J. Ehle, D. Forbes, J. Fynbo, J. Gorosabel, J. Graham, S. Guizy, D. I. Hoffman, P. Jakobsson, A. Kamble, T. Kerr, M. M. Kasliwal, C. Kouveliotou, D. Kocesvki, N. M. Law, P. E. Nugent, E. O. Ofek, D. Poznanski, R. M. Quimby, E. Rol, A. J. Romanowsky, R. Sanchez-Ramirez, S. Schulze, N. Singh, R. L. C. Starling, R. G. Strom, P. J. Wheatley, R. A. M. J. Wijers, J. M. Winters, T. Wold, D. Xu

Possible structure in the cosmic ray electron spectrum measured by the ATIC-2 and ATIC-4 experiments

Authors: A.D. Panov, V.I. Zatsepin, N.V. Sokolskaya, J.H. Adams, Jr., H.S. Ahn, G.L. Bashindzhagyan, J. Chang, M. Christl, T.G. Guzik, J. Isbert, K.C. Kim, E.N. Kouznetsov, M.I. Panasyuk, E.B. Postnikov, E.S. Seo, J. Watts, J.P. Wefel, J. Wu

Production of antinuclei in pp collisions at \surd s = 7 TeV with ALICE at the LHC

Authors: N. Sharma for the ALICE Collaboration

tipa -- 4/18/2011

Detections of Faint Lyman-alpha Emitters at z = 5.7: Galaxy Building Blocks and Engines of Reionization

Authors: Alan Dressler, Crystal L. Martin, Alaina Henry, Marcin Sawicki, Patrick McCarthy

Jet propulsion of wind ejecta from a major flare in the black hole microquasar SS433

Authors: Katherine Blundell, Paul Hirst

First constraint on cosmological variation of the proton-to-electron mass ratio from two independent telescopes

Authors: Freek van Weerdenburg, Michael T. Murphy, Adrian L. Malec, Lex Kaper, Wim Ubachs

The populations of hard X- and γ-ray sources: a correlation study and new possible identifications

Authors: A. Maselli, G. Cusumano, E. Massaro, A. Segreto, V. La Parola, A. Tramacere, I. Donnarumma

A search for light dark matter in XENON10 data

Authors: J. Angle, E. Aprile, F. Arneodo, L. Baudis, A. Bernstein, A. Bolozdynya, P. Brusov, L.C.C. Coelho, C.E. Dahl, L. DeViveiros, A.D. Ferella, L.M.P. Fernandes, S. Fiorucci, R.J. Gaitskell, K.L. Giboni, R. Gomez, R. Hasty, L. Kastens, J. Kwong, J.A.M. Lopes, N. Madden, A. Manalaysay, A. Manzur, D.N. McKinsey, M.E. Monzani, K. Ni, U. Oberlack, J. Orboeck, G. Plante, R. Santorelli, J.M.F. dos Santos, P. Shagin, T. Shutt, P. Sorensen, S. Schulte, C. Winant, M. Yamashita

Formation and Evolution of the Disk System of the Milky Way: [alpha/Fe] Ratios and Kinematics of the SEGUE G-Dwarf Sample

Authors: Young Sun Lee, Timothy C. Beers, Deokkeun An, Zeljko Ivezic, Andreas Just, Constance M. Rockosi, Heather L. Morrison, Jennifer A. Johnson, Ralph Schonrich, Jonathan Bird, Brian Yanny, Paul Harding, Helio J. Rocha-Pinto

Implications on Inelastic Dark Matter from 100 Live Days of XENON100 Data

Authors: E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudis, A. Behrens, K. Bokeloh, E. Brown, T. Bruch, G. Bruno, J. M. R. Cardoso, W.-T. Chen, B. Choi, D. Cline, E. Duchovni, S. Fattori, A. D. Ferella, F. Gao, K.-L. Giboni, E. Gross, A. Kish, C. W. Lam, J. Lamblin, R. F. Lang, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lopes, K. Lung, T. Marrodán Undagoitia, Y. Mei, A. J. Melgarejo Fernandez, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, A. C. C. Ribeiro, R. Santorelli, J. M. F. dos Santos, G. Sartorelli, M. Schumann, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Thers, O. Vitells, H. Wang, M. Weber, C. Weinheimer

classic papers of the week -- 191

Bohm, David (Palmer Physical Laboratory, Princeton University)

Identification of the Radio Sources in Cassiopeia, Cygnus A, and Puppis A

Baade, W.; Minkowski, R. (Mount Wilson and Palomar Observatories, Carnegie Institution of Washington, California Institute of Technology)

On Being the Right Size

J. B. S. Haldane

tipa -- 4/15/2011

Discovery of a Large Stellar Periphery Around the Small Magellanic Cloud

Authors: David L. Nidever, Steven R. Majewski, Ricardo R. Munoz, Rachael L. Beaton, Richard J. Patterson, William E. Kunkel

Beating the spin-down limit on gravitational wave emission from the Vela pulsar

Authors: The LIGO Scientific Collaboration, the Virgo Collaboration

Very high-energy observations of the two high-frequency peaked BL Lac objects 1ES 1218+304 and H 1426+428

Authors: C. Mueller, N. Akhter, J. Ball, D.A. Bramel, J. Carson, C.E. Covault, D. Driscoll, P. Fortin, D.M. Gingrich, D.S. Hanna, A. Jarvis, J. Kildea, T. Lindner, R. Mukherjee, R.A. Ong, K. Ragan, R.A. Scalzo, D.A. Williams, J. Zweerink (The STACEE Collaboration)

Very hard gamma-ray emission from a flare of Mrk 501

Authors: A.Neronov, D.V.Semikoz, A.M.Taylor

Metallicity in the GRB 100316D/SN 2010bh Host Complex

Authors: Emily M. Levesque, Edo Berger, Alicia M. Soderberg, Ryan Chornock

The Mipsgal View of Supernova Remnants in the Galactic Plane

Authors: D. Pinheiro Goncalves, A. Noriega-Crespo, R. Paladini, P.G. Martin, S. J. Carey

Chance and Chandra (and repulsive dark matter)

Authors: Jeremy Goodman, Zachary Slepian

Dark Matter Searches with Astroparticle Data

Authors: Troy A. Porter, Robert P. Johnson, Peter W. Graham

New Exclusion Limits for Dark Gauge Forces from Beam-Dump Data

Authors: Johannes Blümlein, Jürgen Brunner

A New Limit on Time-Reversal Violation in Beta Decay

Authors: H. P. Mumm (1 and 2), T. E. Chupp (3), R. L. Cooper (3), K. P. Coulter (3), S. J. Freedman (4), B. K. Fujikawa (4), A. Garcia (2 and 5), G. L. Jones (6), J. S. Nico (1), A. K. Thompson (1), C. A. Trull (7), J. F. Wilkerson (8 and 2), F. E. Wietfeldt (7) ((1) National Institute of Standards and Technology, Gaithersburg, MD, (2) CENPA and Physics Department, University of Washington, Seattle, WA, (3) Physics Department, University of Michigan, Ann Arbor, MI, (4) Physics Department, University of California at Berkeley and Lawrence Berkeley National Laboratory, Berkeley, CA, (5) Department of Physics, University of Notre Dame, Notre Dame, IN, (6) Physics Department, Hamilton College, Clinton, NY, (7) Physics Department, Tulane University, New Orleans, LA, (8) Department of Physics and Astronomy, University of North Carolina, Chapel Hill, NC)

tipa -- 4/14/2011

Dark Matter Results from 100 Live Days of XENON100 Data

Authors: XENON100 Collaboration

Observable Signatures of EMRI Black Hole Binaries Embedded in Thin Accretion Disks

Authors: Bence Kocsis, Nicolas Yunes, Abraham Loeb

How Additional Massless Neutrinos Affect the Cosmic Microwave Background Damping Tail

Authors: Zhen Hou, Ryan Keisler, Lloyd Knox, Marius Millea, Christian Reichardt

Galaxy And Mass Assembly (GAMA): The star formation rate dependence of the stellar initial mass function

Authors: M. L. P. Gunawardhana, A. M. Hopkins, R. G. Sharp, S. Brough, E. Taylor, J. Bland-Hawthorn, C. Maraston, R. J. Tuffs, C. C. Popescu, D. Wijesinghe, D. H. Jones, S. Croom, E. Sadler, S. Wilkins, S. P. Driver, J. Liske, P. Norberg, I. K. Baldry, S. P. Bamford, J. Loveday, J. A. Peacock, A. S. G. Robotham, D. B. Zucker, Q. A. Parker, C. J. Conselice, E. Cameron, C. S. Frenk, D. T. Hill, L. S. Kelvin, K. Kuijken, B. F. Madore, B. Nichol, H. R. Parkinson, K. A. Pimbblet, M. Prescott, W. J. Sutherland, D. Thomas, E. van Kampen

Feasibility study of probing the high energy end of the primary cosmic electron spectrum by detecting geo-synchrotron X-rays

Authors: Y.Akaike, K.Kasahara, R.Nakamura, S.Ozawa, Y.Shimizu, S.Torii, K.Yoshida, T.Tamura, S.Udo

The Case for the Dual Halo of the Milky Way

Authors: Timothy C. Beers (1), Daniela Carollo (2), Zeljko Ivezic (3), Deokkeun An (4), Masashi Chiba (5), John E. Norris (2), Ken C. Freeman (2), Young Sun Lee (1), Jeffrey A. Munn (6), Paola Re Fiorentin (7), Thirupathi Sivarani (8), Ronald Wilhelm (9), Brian Yanny (10), Donald G. York (11) ((1) Michigan State Univ., (2) Australian National Univ., (3) Univ. of Washington, (4) Ehwa Womans Univ., Korea, (5) Tohoku Univ., Japan, (6) USNO, (7) Torino Observatory, Italy, (8) Indian Institute of Astrophysics, Bangalore, (9) Univ. of Kentucky, (10) FermiLab, (11) Univ. of Chicago)