today in particle astrophysics

tipa -- 11/3/2010

The Sudden Death of the Nearest Quasar

Authors: Kevin Schawinski, Daniel A. Evans, Shanil Virani, C. Megan Urry, William C. Keel, Priyamvada Natarajan, Chris J. Lintott, Anna Manning, Paolo Coppi, Sugata Kaviraj, Steven P. Bamford, Gyula I. G. Jozsa, Michael Garrett, Hanny van Arkel, Pamela Gay, Lucy Fortson

The Gamma-Ray Background Constrains the Origins of the Radio and X-Ray Backgrounds

Authors: Brian C. Lacki

Ross Ice Shelf in situ radio-frequency ice attenuation

Authors: Taylor Barrella (1), Steven Barwick (2), David Saltzberg (1) ((1) Department of Physics and Astronomy, University of California, Los Angeles, (2) Department of Physics and Astronomy, University of California, Irvine)

The nature of "dark" gamma-ray bursts

Authors: J. Greiner, T. Krühler, S. Klose, P. Afonso, C. Clemens, R. Filgas, D.H. Hartmann, A. Küpcü Yoldaş, M. Nardini, F.Olivares Estay, A. Rau, A. Rossi, P. Schady, A. Updike

Timing Measurements of the Relativistic Binary Pulsar PSR B1913+16

Authors: Joel M. Weisberg, David J. Nice, Joseph H. Taylor

Resonant Destruction as a Possible Solution to the Cosmological Lithium Problem

Authors: Nachiketa Chakraborty, Brian D. Fields, Keith A. Olive

Bekenstein, Jacob D. (Joseph Henry Laboratories, Princeton University; Center for Relativity Theory, The University of Texas at Austin)

Gravitational Effects on and of Vacuum Decay

Sidney R. Coleman (Stanford Linear Accelerator Center), Frank De Luccia, (Institute for Advanced Study)

Life at low Reynolds number

Purcell, E. M. (Lyman Laboratory, Harvard University)

tipa -- 10/29/2010

The Hubble Space Telescope Cluster Supernova Survey: The Type Ia Supernova Rate in High-Redshift Galaxy Clusters

Authors: K. Barbary, G. Aldering, R. Amanullah, M. Brodwin, N. Connolly, K. S. Dawson, M. Doi, P. Eisenhardt, L. Faccioli, V. Fadeyev, H. K. Fakhouri, A. S. Fruchter, D. G. Gilbank, M. D. Gladders, G. Goldhaber, A. Goobar, T. Hattori, E. Hsiao, X. Huang, Y. Ihara, N. Kashikawa, B. Koester, K. Konishi, M. Kowalski, C. Lidman, L. Lubin, J. Meyers, T. Morokuma, T. Oda, N. Panagia, S. Perlmutter, M. Postman, P. Ripoche, P. Rosati, D. Rubin, D. J. Schlegel, A. L. Spadafora, S. A. Stanford, M. Strovink, N. Suzuki, N. Takanashi, K. Tokita, N. Yasuda, for the Supernova Cosmology Project

Shapiro delay measurement of a two solar mass neutron star

Authors: Paul Demorest, Tim Pennucci, Scott Ransom, Mallory Roberts, Jason Hessels

The Massive Pulsar PSR J1614-2230: Linking Quantum Chromodynamics, Gamma-ray Bursts, and Gravitational Wave Astronomy

Authors: Feryal Ozel, Dimitrios Psaltis, Scott Ransom, Paul Demorest, Mark Alford

Characteristics of Gamma-Ray Loud Blazars in the VLBA Imaging and Polarimetry Survey

Authors: J. D. Linford, G. B. Taylor, R. Romani, S. E. Healey, J. F. Helmboldt, A. C. S. Readhead, R. Reeves, J. Richards, G. Cotter

Supersoft X-ray Phase of Single Degenerate Type Ia Supernova Progenitors in Early Type Galaxies

Authors: Izumi Hachisu (Univ. of Tokyo), Mariko Kato (Keio Univ.), Ken'ichi Nomoto (Univ. of Tokyo)

A new limit on the Ultra-High-Energy Cosmic-Ray flux with the Westerbork Synthesis Radio Telescope

Authors: S. ter Veen, S. Buitink, H. Falcke, C.W. James, M. Mevius, O. Scholten, K. Singh, B. Stappers, K.D. de Vries

tipa -- 10/28/2010

Black Hole Formation in Failing Core-Collapse Supernovae

Authors: Evan O'Connor, Christian D. Ott

"Discrepant hardenings" in cosmic ray spectra: a first estimate of the effects on secondary antiproton and diffuse gamma-ray yields

Authors: Fiorenza Donato, Pasquale D. Serpico

CMB Neutrino Mass Bounds and Reionization

Authors: Maria Archidiacono, Asantha Cooray, Alessandro Melchiorri, Stefania Pandolfi

tipa -- 10/27/2010

Induced Rotation in 3D Simulations of Core Collapse Supernovae: Implications for Pulsar Spins

Authors: E. Rantsiou (Princeton), A. Burrows (Princeton), J. Nordhaus (Princeton), A. Almgren (LBNL)

Sub-Chandrasekhar Mass Models For Type Ia Supernovae

Authors: S.E. Woosley, Daniel Kasen

Black-hole binaries, gravitational waves, and numerical relativity

Authors: Joan M. Centrella, John G. Baker, Bernard J. Kelly, James R. van Meter

tipa -- 10/26/2010

Formation of the black-hole binary M33 X-7 via mass-exchange in a tight massive system

Authors: Francesca Valsecchi, Evert Glebbeek, Will M. Farr, Tassos Fragos, Bart Willems, Jerome A. Orosz, Jifeng Liu, Vassiliki Kalogera

Collateral Effects on Solar Nebula Oxygen Isotopes due to Injection of 26Al by a Nearby Supernova

Authors: C. I. Ellinger, P. A. Young, S. J. Desch

Discovery and follow-up studies of the extended, off-plane, VHE gamma-ray source HESS J1507-622

Authors: H.E.S.S. Collaboration

The clustering of massive galaxies at z~0.5 from the first semester of BOSS data

Authors: Martin White, M. Blanton, A. Bolton, D. Schlegel, J. Tinker, A. Berlind, L. da Costa, E. Kazin, Y.-T. Lin, M. Maia, C. McBride, N. Padmanabhan, J. Parejko, W. Percival, F. Prada, B. Ramos, E. Sheldon, F. de Simoni, R. Skibba, D. Wake, I. Zehavi, Z. Zheng, R. Nichol, D. Schneider, Michael A. Strauss, B.A. Weaver, David H. Weinberg

The local energy production rates of GRB photons and of UHECRs

Authors: Eli Waxman (Weizmann Inst.)

Constraints on a hadronic model for unidentified off-plane galactic gamma-ray sources

Authors: Wilfried F. Domainko (MPIK Heidelberg, Germany)

Atmospheric lepton fluxes at very high energy

Authors: J.I. Illana, Paolo Lipari, M. Masip, D. Meloni

The impact of chemical differentiation of white dwarfs on thermonuclear supernovae

Authors: Eduardo Bravo, Leandro G. Althaus, Enrique García-Berro, Inmaculada Domínguez

Light WIMP Searches: The Effect of the Uncertainty in Recoil Energy Scale and Quenching Factor

Authors: J.I. Collar

New Experimental Constraints for the Standard Model from Muon Decay

Authors: R. Bayes, J.F. Bueno, A. Hillairet, Yu.I. Davydov, P. Depommier, W. Faszer, C.A. Gagliardi, A. Gaponenko, D.R. Gill, A. Grossheim, P. Gumplinger, M.D. Hasinoff, R.S. Henderson, J. Hu, D.D. Koetke, R.P. MacDonald, G. Marshall, E.L. Mathie, R.E. Mischke, K. Olchanski, A. Olin, R. Openshaw, J.-M. Poutissou, R. Poutissou, V. Selivanov, G. Sheffer, B. Shin, T.D.S. Stanislaus, R. Tacik, R.E. Tribble

Quasi-Nambu-Goldstone Modes in Bose-Einstein Condensates

Authors: Shun Uchino, Michikazu Kobayashi, Muneto Nitta, Masahito Ueda

tipa -- 10/25/2010

Detection of a Thermal Spectral Component in the Prompt Emission of GRB 100724B

Authors: Sylvain Guiriec, Valerie Connaughton, Michael S. Briggs, Michael Burgess, Felix Ryde, Frédéric Daigne, Peter Mészáros, Adam Goldstein, Julie McEnery, Nicola Omodei, P.N. Bhat, Elisabetta Bissaldi, Ascensión Camero-Arranz, Vandiver Chaplin, Roland Diehl, Gerald Fishman, Suzanne Foley, Melissa Gibby, Misty M. Giles, Jochen Greiner, David Gruber, Andreas von Kienlin, Marc Kippen, Chryssa Kouveliotou, Sheila McBreen, Charles A. Meegan, William Paciesas, Robert Preece, Arne Rau, Dave Tierney, Alexander J. van der Horst, Colleen Wilson-Hodge

The Supernova Legacy Survey 3-year sample: Type Ia Supernovae photometric distances and cosmological constraints

Authors: J. Guy, M. Sullivan, A. Conley, N. Regnault, P. Astier, C. Balland, S. Basa, R.G. Carlberg, D. Fouchez, D. Hardin, I.M. Hook, D.A. Howell, R. Pain, N. Palanque-Delabrouille, K.M. Perrett, C.J. Pritchet, J. Rich, V. Ruhlmann-Kleider, D. Balam, S. Baumont, R.S. Ellis, S. Fabbro, H.K. Fakhouri, N. Fourmanoit, S. Gonzalez-Gaitan, M.L. Graham, E. Hsiao, T. Kronborg, C. Lidman, A.M. Mourao, S. Perlmutter, P. Ripoche, N. Suzuki, E.S. Walker

Cold neutrons trapped in external fields

Authors: S. Gandolfi, J. Carlson, Steven C. Pieper

classic papers of the week -- 171

Observations of the Failure of Conservation of Parity and Charge Conjugation in Meson Decays: the Magnetic Moment of the Free Muon

Garwin, Richard L.; Lederman, Leon M.; Weinrich, Marcel (Physics Department, Nevis Cyclotron Laboratories, Columbia University, Irvington-on-Hudson, New York, NY)

The Atmospheres of A-Type Subdwarfs and 95 Leonis

Chamberlain, Joseph W.; Aller, Lawrence H. (Observatory, University of Michigan)

Fermi Questions

Morrison, Philip (Laboratory of Nuclear Studies, Cornell University, Ithaca, NY)

tipa -- 10/22/2010

The Dark Matter at the End of the Galaxy

Authors: Mariangela Lisanti, Louis E. Strigari, Jay G. Wacker, Risa H. Wechsler

Particle Acceleration on Megaparsec Scales in a Merging Galaxy Cluster

Authors: R. J. van Weeren, H. J. A. Rottgering, M. Bruggen, M. Hoeft

Spectroscopic confirmation of a galaxy at redshift z=8.6

Authors: M. D. Lehnert (1), N. P. H. Nesvadba (2), J.-G. Cuby (3), A. M. Swinbank (4), S. Morris (5), B. Clement (3), C. J. Evans (6), M. N. Bremer (7), S. Basa (3)

Pulsar timing arrays as imaging gravitational wave telescopes: angular resolution and source (de)confusion

Authors: Latham Boyle, Ue-Li Pen

The Early Evolution of Primordial Pair-Instability Supernovae

Authors: C. C. Joggerst, Daniel Whalen

tipa -- 10/21/2010

The circumburst density profile around GRB progenitors: a statistical study

Authors: S. Schulze, S. Klose, G. Björnsson, P. Jakobsson, D. A. Kann, A. Rossi, T. Krühler, J. Greiner, P. Ferrero

Primordial beryllium as a big bang calorimeter

Authors: Maxim Pospelov, Josef Pradler

Search for a Lorentz-violating sidereal signal with atmospheric neutrinos in IceCube

Authors: IceCube Collaboration

PSRs J0248+6021 and J2240+5832: Young Pulsars in the Northern Galactic Plane. Discovery, Timing, and Gamma-ray observations

Authors: G. Theureau, D. Parent, I. Cognard, G. Desvignes, D. A. Smith, J. M. Casandjian, C. C. Cheung, H. A. Craig, D. Donato, R. Foster, L. Guillemot, A. K. Harding, J.-F. Lestrade, P. S. Ray, R. W. Romani, D. J. Thompson, W. W. Tian, K. Watters

A low-threshold analysis of CDMS shallow-site data

Authors: CDMS Collaboration: D.S. Akerib, M.J. Attisha, L. Baudis, D.A. Bauer, A.I. Bolozdynya, P.L. Brink, R. Bunker, B. Cabrera, D.O. Caldwell, C.L. Chang, R.M. Clarke, J. Cooley, M.B. Crisler, P. Cushman, F. DeJongh, R. Dixon, D.D. Driscoll, J. Filippini, S. Funkhouser, R.J. Gaitskell, S.R. Golwala, D. Holmgren, L. Hsu, M.E. Huber, S. Kamat, R. Mahapatra, V. Mandic, P. Meunier, N. Mirabolfathi, D. Moore, S.W. Nam, H. Nelson, R.W. Ogburn, X. Qiu, W. Rau, A. Reisetter, T. Saab, B. Sadoulet, J. Sander, C. Savage, R.W. Schnee, D.N. Seitz, T.A. Shutt, G. Wang, S. Yellin, J. Yoo, B.A. Young

LUNA: Nuclear Astrophysics Deep Underground

Authors: Carlo Broggini, Daniel Bemmerer, Alessandra Guglielmetti, Roberto Menegazzo

tipa -- 10/20/2010

The Supernova Impostor Impostor SN 1961V: Spitzer Shows That Zwicky Was Right (Again)

Authors: C.S. Kochanek (1), D.M. Szczygiel (1), K.Z. Stanek (1) ((1) Department of Astronomy and the Center for Cosmology and AstroParticle Physics, The Ohio State University)

Measurement of the atmospheric neutrino energy spectrum from 100 GeV to 400 TeV with IceCube

Authors: IceCube Collaboration

Luminous Blue Variable eruptions and related transients: Diversity of progenitors and outburst properties

Authors: Nathan Smith, Weidong Li, Jeffrey M. Silverman, Mo Ganeshalingam, Alexei V. Filippenko

The Formation of Low-Mass Binary Star Systems Via Turbulent Fragmentation

Authors: S. S. R. Offner, K. M. Kratter, C. D. Matzner, M. R. Krumholz, R. I. Klein

A Revised Historical Light Curve of Eta Carinae and the Timing of Close Periastron Encounters

Authors: Nathan Smith, David J. Frew

tipa -- 10/19/2010

Spectral Energy Distribution of z>1 Type Ia Supernova Hosts in GOODS: Constraints on Evolutionary Delay and the Initial Mass Function

Authors: M. G. Thomson (U. Sussex), R. Chary (Caltech)

Cosmic Ray e^+/(e^- + e^+) and pbar/p Ratios Explained by an Injection Model Based on Gamma-ray Observations

Authors: T. Kamae (1), S.-H. Lee (1), L. Baldini (2), F. Giordano (3,4), M.-H. Grondin (5), L. Latronico (2), M. Lemoine-Goumard (5), C. Sgró (2), T. Tanaka (1), Y. Uchiyama (1) ((1) KIPAC and SLAC National Accelerator Laboratory, Stanford University, (2) Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, (3) Dipartimento di Fisica "M. Merlin" dell'Universita e del Politecnico di Bari, (4) Istituto Nazionale di Fisica Nucleare, Sezione di Bari, (5) Université Bordeaux 1, CNRS/IN2p3, Centre d'Études Nucleaires de Bordeaux Gradignan)

Measurement of $\nu_\mu$-induced charged-current neutral pion production cross sections on mineral oil at $E_\nu\in0.5-2.0$ GeV

Authors: A.A.Aguilar-Arevalo, C.E.Anderson, A.O.Bazarko, S.J.Brice, B.C.Brown, L.Bugel, 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, J.Grange, 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, C.Mauger, V.T.McGary, G.McGregor, W.Metcalf, P.D.Meyers, F.Mills, G.B.Mills, J.Monroe, C.D.Moore, J.Mousseau, R.H.Nelson, P.Nienaber, J.A.Nowak, B.Osmanov, S.Ouedraogo, R.B.Patterson, Z.Pavlovic, 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.G.VandeWater, M.O.Wascko, D.H.White, M.J.Wilking, H.J.Yang, G.P.Zeller, E.D.Zimmerman

A Highly Efficient Neutron Veto for Dark Matter Experiments

Authors: Alex Wright, Pablo Mosteiro, Ben Loer, Frank Calaprice

tipa -- 10/18/2010

Spin-Dependent Limits from the DRIFT-IId Directional Dark Matter Detector

Authors: E. Daw, J.R. Fox, J.-L. Gauvreau, C. Ghag, L.J. Harmon, M. Gold, E. Lee, D. Loomba, E. Miller, A.StJ. Murphy, S.M. Paling, J.M. Landers, M. Pipe, K. Pushkin, M. Robinson, D.P. Snowden-Ifft, N.J.C. Spooner, D. Walker

Diffuse Hard X-ray Emission in Starburst Galaxies as Synchrotron from Very High Energy Electrons

Authors: Brian C. Lacki, Todd A. Thompson

CRT: A numerical tool for propagating ultra-high energy cosmic rays through Galactic magnetic field models

Authors: Michael S. Sutherland, Brian M. Baughman, James J. Beatty

Analytic Solutions of Ultra-High Energy Cosmic Ray Nuclei Revisited

Authors: Markus Ahlers, Andrew M. Taylor

Investigating the Cosmic-Ray Ionization Rate Near the Supernova Remnant IC 443 Through H3+ Observations

Authors: Nick Indriolo, Geoffrey A. Blake, Miwa Goto, Tomonori Usuda, Takeshi Oka, T. R. Geballe, Brian D. Fields, Benjamin J. McCall

classic papers of the week -- 170

On the Possibility of Electric Dipole Moments for Elementary Particles and Nuclei

Purcell, E. M.; Ramsey, N. F. (Department of Physics, Harvard University)

The Ability of the 200-inch Telescope to Discriminate Between Selected World Models

Sandage, Allan (Mount Wilson and Palomar Observatories, Carnegie Institution of Washington, California Institute of Technology)

Crystal Statistics. I. A Two-Dimensional Model with an Order-Disorder Transition

Onsager, Lars (Sterling Chemistry Laboratory, Yale University)

tipa -- 10/15/2010

A low-magnetic-field Soft Gamma Repeater

Authors: N. Rea (CSIC-IEEC), P. Esposito (INAF), R. Turolla (U. Padova), G. L. Israel (INAF), S. Zane (MSSL), L. Stella, S. Mereghetti, A. Tiengo (INAF), D. Gotz (CEA-Saclay), E. Gogus (Sabanci), C. Kouveliotou (NASA)

The Production of Ultra High Energy Cosmic Rays during the Early Epochs of Radio-loud AGN

Authors: Hajime Takami, Shunsaku Horiuchi

Diffusive Cosmic Ray Acceleration at the Galactic Centre

Authors: Fulvio Melia, Marco Fatuzzo

Cores and Cusps in Warm Dark Matter Halos

Authors: Francisco Villaescusa-Navarro, Neal Dalal

Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope

Authors: Dan Hooper, Lisa Goodenough

Simulating merging binary black holes with nearly extremal spins

Authors: Geoffrey Lovelace, Mark. A. Scheel, Bela Szilagyi

tipa -- 10/14/2010

Bound and unbound substructures in Galaxy-scale Dark Matter haloes

Authors: Michal Maciejewski (1), Mark Vogelsberger (1,2), Simon D.M. White (1), Volker Springel (1,3) ((1) Max Planck Institute for Astrophysics (2) Harvard/CfA (3) Heidelberg Institute for Theoretical Studies)

Gas accretion as the origin of chemical abundance gradients in distant galaxies