today in particle astrophysics

tipa -- 8/12/2010

The Plerionic Supernova Remnant G21.5-0.9 Powered by PSR J1833-1034: New Spectroscopic and Imaging Results Revealed with the Chandra X-ray Observatory

Authors: Heather Matheson, Samar Safi-Harb

The lithium content of omega Centauri. New clues to the cosmological Li problem from old stars in external galaxies

Authors: L. Monaco (1,2), P. Bonifacio (3,4), L. Sbordone (5), S. Villanova (1), E. Pancino (6) ((1) Universidad de Concepción, Concepción, Chile, (2) ESO - European Southern Observatory, (3) GEPI, Observatoire de Paris, Paris, France, (4) Istituto Nazionale di Astrofisica -- Osservatorio Astronomico di Trieste, Trieste, Italy, (5) Max Planck Institut for Astrophysics, Garching, Germany, (6) Istituto Nazionale di Astrofisica -- Osservatorio Astronomico di Bologna, Bologna, Italy)

Gamma-ray Emission from Crushed Clouds in Supernova Remnants

Authors: Yasunobu Uchiyama, Roger Blandford, Stefan Funk, Hiroyasu Tajima, Takaaki Tanaka

Radio pulsar populations

Authors: D.R. Lorimer

Constraints on Dark Matter from Colliders

Authors: Jessica Goodman, Masahiro Ibe, Arvind Rajaraman, William Shepherd, Tim M.P. Tait, Hai-Bo Yu

tipa -- 8/11/2010

Observation in the MINOS far detector of the shadowing of cosmic rays by the sun and moon

Authors: The MINOS Collaboration

Non-universality of halo profiles and implications for dark matter experiments

Authors: Darren S. Reed (ITP, Univ. of Zurich), Savvas M. Koushiappas (Brown Univ.), Liang Gao (NAO, Chinese Academy of Science)

Taking "The Road Not Taken'': On the Benefits of Diversifying Your Academic Portfolio

Authors: Abraham Loeb (Harvard)

Non-relativistic effective theory of dark matter direct detection

Authors: JiJi Fan, Matthew Reece, Lian-Tao Wang

Uhlenbeck, G. E.; Ornstein, L. S. (University of Michigan, Ann Arbor and Physisch Laboratorium der R. U. Utrecht, Holland)

Tool-Using and Aimed Throwing in a Community of Free-Living Chimpanzees

Goodall, Jane (University of Cambridge, Sub-Department of Animal Behaviour, Madingley, Cambridge)

tipa -- 8/6/2010

Nucleosynthesis-relevant conditions in neutrino-driven supernova outflows. II. The reverse shock in two-dimensional simulations

Authors: A. Arcones, H.-T. Janka

Small scale aspects of warm dark matter : power spectra and acoustic oscillations

Authors: Daniel Boyanovsky, Jun Wu

Background Study on nu_e Appearance from a nu_mu Beam in Very Long Baseline Neutrino Oscillation Experiments with a Large Water Cherenkov Detector

Authors: Chiaki Yanagisawa, Chang Kee Jung, Trung Le, Brett Viren

tipa -- 8/5/2010

Hubble Space Telescope Imaging of Lyman Alpha Emission at z=4.4

Authors: Steven L. Finkelstein, Seth H. Cohen, Rogier A. Windhorst, Russell E. Ryan, Nimish P. Hathi, Keely D. Finkelstein, Jay Anderson, Norman A. Grogin, Anton M. Koekemoer, Sangeeta Malhotra, Max Mutchler, James E. Rhoads, Patrick J. McCarthy, Robert W. O'Connell, Bruce Balick, Howard E. Bond, Daniela Calzetti, Michael J. Disney, Michael A. Dopita, Jay A. Frogel, Donald N. B. Hall, Jon A. Holtzman, Randy A. Kimble, Gerard Luppino, Francesco Paresce, Abhijit Saha, Joseph I. Silk, John T. Trauger, Alistair R. Walker, Bradley C. Whitmore, Erick T. Young

On the Progenitor and Supernova of the SN 2002cx-like Supernova 2008ge

Authors: Ryan J. Foley, Armin Rest, Maximilian Stritzinger, Giuliano Pignata, Joseph P. Anderson, Mario Hamuy, Nidia I. Morrell, Mark M. Phillips, Francisco Salgado

The Unification of Asymmetry Signatures of Type Ia Supernovae

Authors: J.R. Maund (1,2), P.A. Hoeflich (3), F. Patat (4), J.C. Wheeler (5), P. Zelaya (6), D. Baade (4), L. Wang (7), A. Clocchiatti (6), J. Quinn (6) ((1) DARK, (2) UCSC, (3) FSU, (4) ESO, (5) UT Austin, (6) PUC, (7) Texas A&M)

New Nuclear Physics for Big Bang Nucleosynthesis

Authors: Richard N. Boyd, Carl R. Brune, George M. Fuller, Christel J. Smith

tipa -- 8/4/2010

A Search for Neutron Star Precession and Interstellar Magnetic Field Variations via Multiepoch Pulsar Polarimetry

Authors: Joel M. Weisberg, John E. Everett, James M. Cordes, Justin J. Morgan, Drew G. Brisbin

tipa -- 8/3/2010

Fermi Large Area Telescope Observations of Gamma-ray Pulsars PSR J1057-5226, J1709-4429, and J1952+3252

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

Acceleration of primary and secondary particles in galaxy clusters by compressible MHD turbulence: from radio halos to gamma rays

Authors: G. Brunetti, A. Lazarian

Signatures of collective and matter effects on supernova neutrinos at large detectors

Authors: Sandhya Choubey, Basudeb Dasgupta, Amol Dighe, Alessandro Mirizzi

First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment

Authors: M. Beck, S. Coeck, V.Yu. Kozlov, M. Breitenfeld, P. Delahaye, P. Friedag, M. Herbane, A. Herlert, I.S. Kraev, J. Mader, M. Tandecki, S. Van Gorp, F. Wauters, Ch. Weinheimer, F. Wenander, N. Severijns

tipa -- 8/2/2010

From Galaxy Clusters to Ultra-Faint Dwarf Spheroidals: A Fundamental Curve Connecting Dispersion-supported Galaxies to Their Dark Matter Halos

Authors: Erik J. Tollerud, James S. Bullock, Genevieve J. Graves, Joe Wolf

Photoionization of High Altitude Gas in a Supernova-Driven Turbulent Interstellar Medium

Authors: Kenneth Wood, Alex S. Hill, M. Ryan Joung, Mordecai-Mark Mac Low, Robert A. Benjamin, L. Matthew Haffner, R.J. Reynolds, G.J. Madsen

Probing Early Cosmic Magnetic Fields through Pair Echos from High-Redshift GRBs

Authors: Keitaro Takahashi, Susumu Inoue, Kiyotomo Ichiki, Takashi Nakamura

Search for Acoustic Signals from Ultra-High Energy Neutrinos in 1500 km^3 of Sea Water

Authors: Naoko Kurahashi, Justin Vandenbroucke, Giorgio Gratta

Production of new neutron-rich isotopes of heavy elements in fragmentation reactions of $^{238}$U projectiles at 1 A GeV

Authors: H. Alvarez-Pol, J. Benlliure, L. Audouin, E. Casarejos, D. Cortina-Gil, T. Enqvist, B. Fernandez, A. R. Junghans, B. Jurado, P. Napolitani, J. Pereira, F. Rejmund, K.-H. Schmidt, O. Yordanov

classic papers of the week -- 160

Massive Lepton Pair Production in Hadron-Hadron Collisions at High-Energies

S.D. Drell, Tung-Mow Yan (Stanford Linear Accelerator Center)

On the Nature of the Optical Emission from the Crab Nebula

Shklovskii, I. S.

The Constitution of the Elements

Aston, F. W. (Cavendish Laboratory.)

tipa -- 7/30/2010

A Comparison Between the Half-Light Radii, Luminosities, and UBV Colors of Globular Clusters in M31 and the Galaxy

Authors: Sidney van den Bergh

The Luminosity, Mass, and Age Distributions of Compact Star Clusters in M83 Based on HST/WFC3 Observations

Authors: Rupali Chandar (1), Bradley C. Whitmore (2), Hwihyun Kim (3), Catherine Kaleida (3), Max Mutchler (2), Daniela Calzetti (4), Abhijit Saha (5), Robert O'Connell (6), Bruce Balick (7), Howard Bond (2), Marcella Carollo (8), Michael Disney (9), Michael A. Dopita (10), Jay A. Frogel (11), Donald Hall (12), Jon A. Holtzman (13), Randy A. Kimble (14), Patrick McCarthy (15), Francesco Paresce (16), Joe Silk (17), John Trauger (18), Alistair R. Walker (19), Rogier A. Windhorst (3), Erick Young (20) ((1) The University of Toledo, (2) Space Telescope Science Institute, (3) Arizona State University, (4) University of Massachusetts, (5) NOAO, (6) University of Virginia, (7) University of Washington, (8) Institute of Astronomy, ETH-Zurich, (9) Cardiff University, (10) The Australian National University, (11) AURA, Washington, DC, (12) Institute for Astronomy, Honolulu, (13) New Mexico State University, (14) Goddard Space Flight Center, (15) Carnegie Institute of Washington, (16) ESTEC, Noordwijk, (17) University of Oxford, (18) NASA JPL, (19) Cerro Tololo Inter-American Observatory, (20) NASA-Ames Research Center)

High-precision determination of the electric and magnetic form factors of the proton

Authors: J. C. Bernauer, P. Achenbach, C. Ayerbe Gayoso, R. Böhm, D. Bosnar, L. Debenjak, M. O. Distler, L. Doria, A. Esser, H. Fonvieille, M. Gómez Rodríguez de la Paz, J. M. Friedrich, J. Friedrich, M. Makek, H. Merkel, D. G. Middleton, U. Müller, L. Nungesser, J. Pochodzalla, M. Potokar, Sánchez Majos, B.S. Schlimme, S. Širca, Th. Walcher, M. Weinriefer

tipa -- 7/29/2010

The Absolute Magnitudes of Type Ia Supernovae in the Ultraviolet

Authors: Peter J. Brown, Peter W. A. Roming, Peter Milne, Filomena Bufano, Robin Ciardullo, Nancy Elias-Rosa, Alexei V. Filippenko, Ryan J. Foley, Neil Gehrels, Caryl Gronwall, Malcolm Hicken, Stephen T. Holland, Erik A. Hoversten, Stefan Immler, Robert P. Kirshner, Weidong Li, Paolo Mazzali, Mark M. Phillips, Tyler Pritchard, Martin Still, Massimo Turatto, Daniel Vanden Berk

No Indications of Axion-Like Particles From Fermi

Authors: Alexander V. Belikov, Lisa Goodenough, Dan Hooper

Gamma-ray spectrum from supernova remnants interacting with molecular clouds

Authors: Yutaka Ohira, Kohta Murase, Ryo Yamazaki

Secondary atmospheric tau neutrino production

Authors: Alexander Bulmahn, Mary Hall Reno

Search for long-range forces of a neutron and atoms with a trap of ultracold neutrons

Authors: A.P.Serebrov, O.M.Zherebtsov, S.V.Sbitnev

tipa -- 7/28/2010

GALEX and Pan-STARRS1 Discovery of SN IIP 2010aq: The First Days After Shock Breakout in a Red Supergiant Star

Authors: S. Gezari, A. Rest, M. E. Huber, G. Narayan, K. Forster, J. D. Neill, D. C. Martin, S. Valenti, S. J. Smartt, R. Chornock, E. Berger, A. M. Soderberg, S. Mattila, E. Kankare, W. S. Burgett, K. C. Chambers, T. Dombeck, T. Grav, J. N. Heasley, K. W. Hodapp, R. Jedicke, N. Kaiser, R. Kudritzki, G. Luppino, R. H. Lupton, E. A. Magnier, D. G. Monet, J. S. Morgan, P. M. Onaka, P. A. Price, P. H. Rhoads, W. A. Siegmund, C. W. Stubbs, J. L. Tonry, R. J. Wainscoat, M. F. Waterson, C. G. Wynn-Williams

Direct Observation of the Cooling of the Cassiopeia A Neutron Star

Authors: Craig O. Heinke (University of Alberta), Wynn C. G. Ho (University of Southampton)

On the morphology of the electron-positron annihilation emission as seen by SPI/INTEGRAL

Authors: Laurent Bouchet, Jean-Pierre Roques, Elisabeth Jourdain

Measurement of the Neutrino Neutral-Current Elastic Differential Cross Section

Authors: The MiniBooNE Collaboration

Combined CDF and D0 Upper Limits on Standard Model Higgs-Boson Production with up to 6.7 fb-1 of Data

Authors: The CDF Collaboration, The D0 Collaboration, the Tevatron New Physics, Higgs Working Group

tipa -- 7/27/2010

Authors: Mark Vogelsberger (1), Roya Mohayaee (2), Simon D.M. White (3) ((1) Harvard/CfA, (2) IAP Paris, (3) MPA)

Virialization of high redshift dark matter haloes

Authors: Andrew Davis, Anson D'Aloisio, Priyamvada Natarajan

A Complete Spectroscopic Survey of the Milky Way Satellite Segue 1: The Darkest Galaxy

Authors: Joshua D. Simon (Carnegie), Marla Geha (Yale), Quinn E. Minor, Gregory D. Martinez (UC Irvine), Evan N. Kirby (Caltech), James S. Bullock, Manoj Kaplinghat (UC Irvine), Louis E. Strigari (Stanford), Beth Willman (Haverford), Philip I. Choi (Pomona), Erik J. Tollerud, Joe Wolf (UC Irvine)

Indirect Dark Matter Detection Limits from the Ultra-Faint Milky Way Satellite Segue 1

Authors: Rouven Essig (1), Neelima Sehgal (2), Louis E. Strigari (2), Marla Geha (3), Joshua D. Simon (4) ((1) SLAC, (2) KIPAC/Stanford/SLAC, (3) Yale, (4) Carnegie Observatories)

Black hole-neutron star mergers: effects of the orientation of the black hole spin

Authors: Francois Foucart, Matthew D. Duez, Lawrence E. Kidder, Saul A. Teukolsky

Spectropolarimetric Signatures of Clumpy Supernova Ejecta

Authors: K. T. Hole, D. Kasen, K. H. Nordsieck

Searching for the most distant blazars with the Fermi Gamma-ray Space Telescope

Authors: Yoshiyuki Inoue, Susumu Inoue, Tomonori Totani, Masakazu A. R. Kobayashi, Jun Kataoka, Rie Sato

Radioactive 26Al from the Scorpius-Centaurus Association

Authors: Roland Diehl, Michael G. Lang, Pierrick Martin, Henrike Ohlendorf, Thomas Preibisch, Rasmus Voss, Pierre Jean, Jean-Pierre Roques, Peter von Ballmoos, Wei Wang

tipa -- 7/26/2010

Nucleosynthesis in High-Entropy Hot-Bubbles of SNe and Abundance Patterns of Extremely Metal-Poor Stars

Authors: Natsuko Izutani, Hideyuki Umeda

Neutron-rich chromium isotope anomalies in supernova nanoparticles

Authors: Nicolas Dauphas, Laurent Remusat, James Chen, Mathieu Roskosz, Dimitri Papanastassiou, Julien Stodolna, Yunbin Guan, Chi Ma, John Eiler

Nuclear Reaction Uncertainties, Massive Gravitino Decays and the Cosmological Lithium Problem

Authors: Richard H. Cyburt, John Ellis, Brian D. Fields, Feng Luo, Keith A. Olive, Vassilis C. Spanos

classic papers of the week -- 159

Resonance Absorption by Nuclear Magnetic Moments in a Solid

Purcell, E. M.; Torrey, H. C.; Pound, R. V. (Radiation Laboratory, Massachusetts Institute of Technology, Cambridge, MA)

A Search for Faint Blue Stars

Humason, M. L.; Zwicky, F. (Mount Wilson Observatory and California Institute of Technology)

Unrealistic optimism about future life events

Neil D. Weinstein (Department of Human Ecology and Social Sciences, Cook College, Rutgers—The State University)

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