today in particle astrophysics

tipa -- 7/23/2010

Determination of the Axial-Vector Weak Coupling Constant with Polarized Ultracold Neutrons

Authors: UCNA Collaboration: J. Liu, M. P. Mendenhall, A. T. Holley, H. O. Back, T. J. Bowles, L. J. Broussard, R. Carr, S. Clayton, S. Currie, B. W. Filippone, A. Garcia, P. Geltenbort, K. P. Hickerson, J. Hoagland, G. E. Hogan, B. Hona, T. M. Ito, C.-Y. Liu, M. Makela, R. R. Mammei, J. W. Martin, D. Melconian, C. L. Morris, R. W. Pattie Jr., A. Perez Galvan, M. L. Pitt, B. Plaster, J. C. Ramsey, R. Rios, R. Russell, A. Saunders, S. Seestrom, W. E. Sondheim, E. Tatar, R. B. Vogelaar, B. VornDick, C. Wrede, H. Yan, A. R. Young

A Search for Hidden Sector Photons with ADMX

Authors: A. Wagner, G. Rybka, M. Hotz, L. J Rosenberg, S.J. Asztalos, G. Carosi, C. Hagmann, D. Kinion, K. van Bibber, J. Hoskins, C. Martin, P. Sikivie, D.B. Tanner, R. Bradley, J. Clarke

tipa -- 7/22/2010

A Galactic Center Origin for HE 0437-5439, the Hypervelocity Star near the Large Magellanic Cloud

Authors: Warren R. Brown (1), Jay Anderson (2), Oleg Y. Gnedin (3), Howard E. Bond (2), Margaret J. Geller (1), Scott J. Kenyon (1), Mario Livio (2) ((1) Smithsonian Astrophysical Observatory, (2) Space Telescope Science Institute, (3) University of Michigan)

Willman 1 - a probable dwarf galaxy with an irregular kinematic distribution

Authors: Beth Willman, Marla Geha, Jay Strader, Louis E. Strigari, Joshua D. Simon, Evan Kirby, Alex Warres

Aspherical Supernova Shock Breakout and the Observations of Supernova 2008D

Authors: Sean M. Couch, David Pooley, J. Craig Wheeler, Milos Milosavljevic

tipa -- 7/21/2010

The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 Msun stellar mass limit

Authors: Paul A Crowther (Sheffield), Olivier Schnurr (Sheffield, AIP), Raphael Hirschi (Keele, Tokyo), Norhasliza Yusof (Malaya), Richard J Parker (Sheffield), Simon P Goodwin (Sheffield), Hasan Abu Kassim (Malaya)

MAGIC Upper Limits for two Milagro-detected, Bright Fermi Sources in the Region of SNR G65.1+0.6

Authors: J. Aleksić, L. A. Antonelli, P. Antoranz, M. Backes, J. A. Barrio, D. Bastieri, J. Becerra González, W. Bednarek, A. Berdyugin, K. Berger, E. Bernardini, A. Biland, O. Blanch, R. K. Bock, A. Boller, G. Bonnoli, P. Bordas, D. Borla Tridon, V. Bosch-Ramon, D. Bose, I. Braun, T. Bretz, M. Camara, E. Carmona, A. Carosi, P. Colin, J. L. Contreras, J. Cortina, S. Covino, F. Dazzi, A. De Angelis, E. De Cea del Pozo, B. De Lotto, M. De Maria, F. De Sabata, C. DelgadoMendez, A. Diago Ortega, M. Doert, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, D. Elsaesser, M. Errando, D. Ferenc, M. V. Fonseca, L. Font, R. J. García López, M. Garczarczyk, M. Gaug, G. Giavitto, N. Godinović, D. Hadasch, A. Herrero, D. Hildebrand, D. Höhne-Mönch, J. Hose, D. Hrupec, T. Jogler, S. Klepser, T. Krähenbühl, D. Kranich, J. Krause, A. La Barbera, E. Leonardo, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, G. Maneva, N. Mankuzhiyil, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, M. Meucci, J. M. Miranda, R. Mirzoyan, H. Miyamoto, J. Moldón, A. Moralejo, D. Nieto, K. Nilsson, R. Orito, I. Oya, R. Paoletti, J. M. Paredes, S. Partini, M. Pasanen, F. Pauss, R. G. Pegna, M. A. Perez-Torres, M. Persic, L. Peruzzo, J. Pochon, F. Prada, P. G. Prada Moroni, E. Prandini, N. Puchades, I. Puljak, I. Reichardt, R. Reinthal, W. Rhode, M. Ribó, J. Rico, M. Rissi, S. Rügamer, A. Saggion, K. Saito, T. Y. Saito, M. Salvati, M. Sánchez-Conde, K. Satalecka, V. Scalzotto, V. Scapin, C. Schultz, T. Schweizer, M. Shayduk, S. N. Shore, A. Sierpowska-Bartosik, A. Sillanpää, J. Sitarek, D. Sobczynska, F. Spanier, S. Spiro, A. Stamerra, B. Steinke, J. Storz, N. Strah, J. C. Struebig, T. Suric, L. Takalo, F. Tavecchio, P. Temnikov, T. Terzić, D. Tescaro, M. Teshima, D. F. Torres, H. Vankov, R. M. Wagner, Q. Weitzel, V. Zabalza, F. Zandanel, R. Zanin

Fermi observations of high-energy gamma-ray emission from GRB 090217A

Authors: Fermi-LAT, Fermi-GBM Collaborations

Dark Matter decay and annihilation in the Local Universe: CLUES from Fermi

Authors: A.J. Cuesta (IAA-CSIC), T.E. Jeltema (UCO/Lick), F. Zandanel (IAA-CSIC), S. Profumo (UCSC), F. Prada (IAA-CSIC), G. Yepes (UAM), A. Klypin (NMSU), Y. Hoffman (HU), S. Gottloeber (AIP), J. Primack (UCSC), M.A. Sanchez-Conde (IAC), C. Pfrommer (CITA)

tipa -- 7/20/2010

The Subluminous Supernova 2007qd: A Missing Link in a Family of Low-Luminosity Type Ia Supernovae

Authors: Colin M. McClelland, Peter M. Garnavich, Lluís Galbany, Ramon Miquel, Ryan J. Foley, Alexei V. Filippenko, Bruce Bassett, J. Craig Wheeler, Ariel Goobar, Saurabh W. Jha, Masao Sako, Joshua A. Frieman, Jesper Sollerman, Jozsef Vinko, Donald P. Schneider

Cosmic-Ray Acceleration Efficiency vs Temperature Equilibration: the Case of SNR 0509-67.5

Authors: E.A. Helder, D. Kosenko, J. Vink

X-ray Evolution of Pulsar Wind Nebulae

Authors: Aya Bamba (1,2), Takayasu Anada (2), Tadayasu Dotani (2), Koji Mori (3), Ryo Yamazaki (4), Ken Ebisawa (2), Jacco Vink (5) ((1) DIAS (2) ISAS/JAXA (3) Miyazaki U. (4) Aoyama-Gakuin U. (5) Utrecht U.)

Diffuse supernova neutrinos at underground laboratories

Authors: Cecilia Lunardini

LSND reloaded

Authors: Sanjib K. Agarwalla, Patrick Huber

tipa -- 7/19/2010

Phenomenology of the Equivalence Principle with Light Scalars

Authors: Thibault Damour, John F. Donoghue

Evolutionary and pulsational properties of white dwarf stars

Authors: Leandro G. Althaus, Alejandro H. Córsico, Jordi Isern, Enrique Garcí a-Berro

The exotic fraction among unassociated Fermi sources

Authors: N. Mirabal, D. Nieto, S. Pardo (Universidad Complutense de Madrid)

Impure Thoughts on Inelastic Dark Matter

Authors: Spencer Chang, Rafael F. Lang, Neal Weiner

A Search for Lorentz Invariance and CPT Violation with the MINOS Far Detector

Authors: MINOS Collaboration

classic papers of the week -- 158

Secular perturbations of asteroids with high inclination and eccentricity

Kozai, Yoshihide (Smithsonian Astrophysical Observatory, Cambridge, MA)

The Scattering of Positrons by Electrons with Exchange on Dirac's Theory of the Positron

Bhabha, H. J. (Gonville and Caius College)

The Transistor, A Semi-Conductor Triode

Bardeen, J.; Brattain, W. H. (Bell Telephone Laboratories, Murray Hill, NJ)

tipa -- 7/16/2010

Dark Matter Contraction and the Stellar Content of Massive Early-type Galaxies: Disfavoring "Light" Initial Mass Functions

Authors: M. W. Auger (1), T. Treu (1), R. Gavazzi (2), A. S. Bolton (3), L. V. E. Koopmans (4), P. J. Marshall (5) ((1) UCSB, (2) IAP, (3) Utah, (4) Kapteyn, (5) SLAC)

Neutron Star Radius Measurement with the Quiescent Low-Mass X-ray Binary U24 in NGC 6397

Authors: Sebastien Guillot, Robert E. Rutledge, Edward F. Brown

Pressure Support in Galaxy Disks: Impact on Rotation Curves and Dark Matter Density Profiles

Authors: J. J. Dalcanton, A. Stilp

An Experimental Exploration of the QCD Phase Diagram: The Search for the Critical Point and the Onset of De-confinement

Authors: STAR Collaboration

Authors: Yu Seon Jeong, Mary Hall Reno (University of Iowa)

tipa -- 7/12/2010

Fermi Large Area Telescope Observations of Misaligned AGN

Authors: Fermi-LAT Collaboration

Constraints on Small-Scale Structures of Dark Matter from Flux Anomalies in Quasar Gravitational Lenses

Authors: R. Benton Metcalf, Adam Amara

UHECRs from magnetic reconnection in relativistic jets

Authors: Dimitrios Giannios (Princeton University)

The Size Evolution of Passive Galaxies: Observations from the Wide Field Camera 3 Early Release Science Program

Authors: R. E. Ryan Jr., P. J. McCarthy, S. H. Cohen, H. Yan, N. P. Hathi, A. M. Koekemoer, M. J. Rutkowski, M. R. Mechtley, R. A. Windhorst, R. W. O'Connell, B. Balick, H. E. Bond, H. Bushouse, D. Calzetti, R. M. Crockett, M. Disney, M. A. Dopita, J. A. Frogel, D. N. B. Hall, J. A. Holtzman, S. Kaviraj, R. A. Kimble, J. MacKenty, M. Mutchler, F. Paresce, A. Saha, J. I. Silk, J. Trauger, A. R. Walker, B. C. Whitmore, E. Young

classic papers of the week -- 157

Broken Symmetries

Jeffrey Goldstone (Trinity College, Cambridge University); Abdus Salam, Steven Weinberg (Imperial College of Science and Technology, London, England)

Fluid dynamics of relativistic blast waves

Blandford, R. D.; McKee, C. F. (University of California, Berkeley)

Quantal Phase Factors Accompanying Adiabatic Changes

Berry, M. V. (H. H. Wills Physical Laboratory, University of Bristol)

tipa -- 7/9/2010

IceCube: An Instrument for Neutrino Astronomy

Authors: Francis Halzen, Spencer R. Klein

Introducing the Fission-Fusion Reaction Process: Using a Laser-Accelerated Th Beam to produce Neutron-Rich Nuclei towards the N=126 Waiting Point of the r Process

Authors: D. Habs, P.G. Thirolf, M. Gross, K. Allinger, J. Bin, A. Henig, D. Kiefer, W. Ma, J. Schreiber

tipa -- 7/8/2010

Observed Event Excess in the MiniBooNE Search for $\bar \nu_μ \rightarrow \bar \nu_e$ Oscillations

Authors: The MiniBooNE Collaboration

A Radio-loud Magnetar in X-ray Quiescence

Authors: Lina Levin, Matthew Bailes, Samuel Bates, N. D. Ramesh Bhat, Marta Burgay, Sarah Burke-Spolaor, Nichi D'Amico, Simon Johnston, Michael Keith, Michael Kramer, Sabrina Milia, Andrea Possenti, Nanda Rea, Ben Stappers, Willem van Straten

Evaluating Systematic Dependencies of Type Ia Supernovae: The Influence of Deflagration to Detonation Density

Authors: Aaron P. Jackson (1), Alan C. Calder (1 and 2), Dean M. Townsley (3), David A. Chamulak (4 and 6), Edward F. Brown (5 and 6), F. X. Timmes (6 and 7) ((1) The State University of New York - Stony Brook, (2) New York Center for Computational Sciences, (3) The University of Alabama - Tuscaloosa, (4) Argonne National Laboratory, (5) Michigan State University - East Lansing, (6) The Joint Institute for Nuclear Astrophysics, (7) School of Earth and Space Exploration - Arizona State University)

Fermi LAT observations of the Geminga pulsar

Authors: Fermi-LAT Collaboration: A. A. Abdo, et al.

A Consistent Dark Matter Interpretation For CoGeNT and DAMA/LIBRA

Authors: Dan Hooper, J.I. Collar, Jeter Hall, Dan McKinsey

Magnetospheres of Black Hole Systems in Force-Free Plasma

Authors: Carlos Palenzuela, Travis Garrett, Luis Lehner, Steven L.Liebling

tipa -- 7/7/2010

PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy

Authors: PAMELA Collaboration: O. Adriani, G. C. Barbarino, G. A. Bazilevskaya, R. Bellotti, M. Boezio, E. A. Bogomolov, L. Bonechi, M. Bongi, V. Bonvicini, S. Borisov, S. Bottai, A. Bruno, F. Cafagna, D. Campana, R. Carbone, P. Carlson, M. Casolino, G. Castellini, L. Consiglio, M. P. De Pascale, C. De Santis, N. De Simone, V. Di Felice, A. M. Galper, W. Gillard, L. Grishantseva, P. Hofverberg, G. Jerse, A. V. Karelin, S. V. Koldashov, S. Y. Krutkov, A. N. Kvashnin, A. Leonov, V. Malvezzi, L. Marcelli, A. G. Mayorov, W. Menn, V. V. Mikhailov, E. Mocchiutti, A. Monaco, N. Mori, N. Nikonov, G. Osteria, P. Papini, M. Pearce, P. Picozza, C. Pizzolotto, M. Ricci, S. B. Ricciarini, L. Rossetto, M. Simon, R. Sparvoli, P. Spillantini, Y. I. Stozhkov, A. Vacchi, E. Vannuccini, G. Vasilyev, S. A. Voronov, J. Wu, Y. T. Yurkin, G. Zampa, N. Zampa, V. G. Zverev

Supernovae Powered by Collapsar Accretion in Gamma-Ray Burst Sources

Authors: Milos Milosavljevic, Christopher C. Lindner, Rongfeng Shen, Pawan Kumar

Direct Imaging of Bridged Twin Protoplanetary Disks in a Young Multiple Star

Authors: Satoshi Mayama, Motohide Tamura, Tomoyuki Hanawa, Tomoaki Matsumoto, Miki Ishii, Tae-Soo Pyo, Hiroshi Suto, Takahiro Naoi, Tomoyuki Kudo, Jun Hashimoto, Shogo Nishiyama, Masayuki Kuzuhara, Masahiko Hayashi

On variations of the brightness of type Ia supernovae with the age of the host stellar population

Authors: Brendan K. Krueger (1), Aaron P. Jackson (1), Dean M. Townsley (2), Alan C. Calder (1 and 3), Edward F. Brown (4), F. X. Timmes (5) ((1) The State University of New York - Stony Brook, (2) The University of Alabama, (3) New York Center for Computational Sciences, (4) Michigan State University, (5) Arizona State University)