tipa -- 11/18/2008

Solar neutrinos and the solar composition problem

• Authors: Carlos Pena-Garay, Aldo Serenelli

Dots, clumps and filaments: the intermittent images of synchrotron emission in random magnetic fields of young supernova remnants

• Authors: Andrei M. Bykov, Yury A. Uvarov, Donald C. Ellison

GRS 1915+105 : High-energy Insights with SPI/INTEGRAL

• Authors: Robert Droulans, Elisabeth Jourdain

Episodic Magnetic Bubbles and Jets: Astrophysical Implications from Laboratory Experiments

• Authors: Andrea Ciardi (1) (*), Sergey V. Lebedev (2), Adam Frank (3), Francisco Suzuki-Vidal (2), Gareth N. Hall (2), Simon N. Bland (2), Adam Harvey-Thompson (2), Eric G. Blackman (3), Max Camenzind (4) ((1) Observatoire de Paris, LERMA, France; (2) Imperial College, Blackett Laboratory, UK; (3) University of Rochester, Department of Physics and Astronomy, USA; (4) University of Heidelberg, Centre for Astronomy Heidelberg, Germany. (*) Present address: Ecole Normale Superieure, Laboratoire de Radioastronomie, France.)

tipa -- 11/17/2008

The Race Between Stars and Quasars in Reionizing Cosmic Hydrogen

• Authors: Abraham Loeb (Harvard)

tipa -- 11/14/2008

The cosmology dependence of weak lensing cluster counts

• Authors: Laura Marian, Robert E. Smith, Gary M. Bernstein

Observational Characteristics and Possible Asphericity of Over-Luminous Type Ia Supernovae

• Authors: Keiichi Maeda, Koichi Iwamoto

Non-Gaussian Signatures from the Post-inflationary Early Universe

• Authors: Alessandra Silvestri, Mark Trodden

tipa -- 11/13/2008

3C66B as a TeV radiogalaxy

• Authors: F. Tavecchio, G. Ghisellini

tipa -- 11/12/2008

Probing The Lower Mass Limit for Supernova Progenitors and the High-Mass End of the Initial-Final Mass Relation from White Dwarfs in the Open Cluster M35 (NGC 2168)

• Authors: Kurtis A. Williams (1 and 2), Michael Bolte (3), Detlev Koester (4) ((1) NSF Postdoctoral Fellow, (2) UT Austin, (3) UCO/Lick, (4) U. Kiel)

Hierarchical Phase Space Structure of Dark Matter Haloes: Tidal debris, Caustics, and Dark Matter annihilation

• Authors: Niayesh Afshordi (Perimeter Institute), Roya Mohayaee (IAP), Edmund Bertschinger (MIT)

Constraining the star formation histories of GRB Host Galaxies from their observed abundance patterns

• Authors: F. Calura (1), M. Dessauges-Zavadsky (2), J. X. Prochaska (3), F. Matteucci (1); ((1) Dip. Astonomia, Universita' di Trieste, Italy; (2) Observatoire de Geneve, Switzerland; (3) U:CO/Lick Observatory, Santa Cruz, USA)

Semi-global simulations of the magneto-rotational instability in core collapse supernovae

• Authors: M. Obergaulinger, P. Cerdà-Duràn, E. Müller, M.A. Aloy

tipa -- 11/11/2008

A new measurement of the cosmic X-ray background

• Authors: A. Moretti, C. Pagani, G. Cusumano, S. Campana, M. Perri, A. Abbey, M. Ajello, A.P. Beardmore, D. Burrows, G. Chincarini, O. Godet, C. Guidorzi, J.E. Hill, J. Kennea, J. Nousek, J.P. Osborne, G. Tagliaferri

Galaxies appear simpler than expected

• Authors: M. J. Disney, J. D. Romano, D. A. Garcia-Appadoo, A. A. West, J. J. Dalcanton, L. Cortese

Flesh and Blood, or Merely Ghosts? Some Comments on the Multi-Muon Study at CDF

• Authors: Matthew J. Strassler (Rutgers U.)

Factorization in Dual Models and Functional Integration in String Theory

• Authors: Stanley Mandelstam

tipa -- 11/10/2008

Gravitational Wave Recoil Oscillations of Black Holes: Implications for Unified Models of Active Galactic Nuclei

• Authors: S. Komossa, David Merritt

GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission

• Authors: D. A. Perley, B. D. Metzger, J. Granot, N. R. Butler, T. Sakamoto, E. Ramirez-Ruiz, A. J. Levan, J. S. Bloom, A. A. Miller, A. Bunker, H.-W. Chen, A. V. Filippenko, N. Gehrels, K. Glazebrook, P. Hall, K. C. Hurley, D. Kocevski, W. Li, S. Lopez, J. Norris, A. L. Piro, D. Poznanski, J. X. Prochaska, E. Quataert, N. Tanvir

Spectropolarimetry of Supernovae

• Authors: Lifan Wang, J. Craig Wheeler

An Improved Limit on the Muon Electric Dipole Moment

• Authors: G.W.Bennett, B.Bousquet, H.N.Brown, G.Bunce, R.M.Carey, P.Cushman, G.T.Danby, P.T.Debevec, M.Deile, H.Deng, W.Deninger, S.K.Dhawan, V.P.Druzhinin, L.Duong, E.Efstathiadis, F.J.M.Farley, G.V.Fedotovich, S.Giron, F.E.Gray, D.Grigoriev, M.Grosse-Perdekamp, A.Grossmann, M.F.Hare, D.W.Hertzog, X.Huang, V.W.Hughes, M.Iwasaki, K.Jungmann, D.Kawall, M.Kawamura, B.I.Khazin, J.Kindem, F.Krienen, I.Kronkvist, A.Lam, R.Larsen, Y.Y.Lee, I.Logashenko, R.McNabb, W.Meng, J.Mi, J.P.Miller, Y. Mizumachi, W.M.Morse, D.Nikas, C.J.G.Onderwater, Y.Orlov, C.S.Ozben, J.M.Paley, Q.Peng, C.C.Polly, J.Pretz, R.Prigl, G.zu Putlitz, T.Qian, S.I.Redin, O.Rind, B.L.Roberts, N.Ryskulov, S.Sedykh, Y.K.Semertzidis, P.Shagin, Yu.M.Shatunov, E.P.Sichtermann, E.Solodov, M.Sossong, A.Steinmetz, L.R.Sulak, C.Timmermans, A.Trofimov, et al. (6 additional authors not shown)

classic papers of the week -- 84

High Frequency Rays of Cosmic Origin

• Robert Andrews Millikan

The Zeno's paradox in quantum theory

• Misra, B.; Sudarshan, E. C. G. (Center for Particle Theory, University of Texas at Austin, Austin, Texas)

How Many People Have Ever Lived on Earth?

• Carl Haub

tipa -- 11/7/2008

Accretion onto the First Stellar Mass Black Holes

• Authors: Marcelo A. Alvarez, John H. Wise, Tom Abel

Gamma-ray Constraints on Dark Matter Annihilation into Charged Particles

• Authors: Nicole F. Bell, Thomas D. Jacques

Some Practical Applications of Dark Matter Research

• Authors: L. Stodolsky

tipa -- 11/6/2008

The Anisotropic Spatial Distribution of Hypervelocity Stars

• Authors: Warren R. Brown (1), Margaret J. Geller (1), Scott J. Kenyon (1), Benjamin C. Bromley (2) ((1) Smithsonian Astrophysical Observatory (2) University of Utah)

Pairing of Supermassive Black Holes in unequal-mass galaxy mergers

• Authors: Simone Callegari (Univ. Zurich), Lucio Mayer (Univ. & ETH Zurich), Stelios Kazantzidis (OSU/CCAPP), Monica Colpi (Univ. Milano-Bicocca), Fabio Governato (Univ. Washington), Thomas Quinn (Univ. Washington), James Wadsley (McMaster Univ.)

Parity violation constraints using 2006-2007 QUaD CMB polarization spectra

• Authors: QUaD Collaboration: E. Y. S. Wu (1), P. Ade (2), J. Bock (3 and 4), M. Bowden (1 and 5), M. L. Brown (6), G. Cahill (7), P. G. Castro (8 and 9), S. Church (1), T. Culverhouse (10), R. Friedman (10), K. Ganga (11), W. K. Gear (2), S. Gupta (2), J. Hinderks (1), J. Kovac (3), A. E. Lange (3), E. Leitch (3 and 4), S. J. Melhuish (12), Y. Memari (9), A. N. Taylor (9), J. A. Murphy (7), A. Orlando (3 and 2), L. Piccirillo (12), C. Pryke (10), N. Rajguru (2), B. Rusholme (1), R. Schwarz (10), C. O'Sullivan (7), K. L. Thompson (1), A. H. Turner (2), M. Zemcov (4 3 and 2) ((1) Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University, (2) School of Physics and Astronomy, Cardiff University, (3) California Institute of Technology, (4) Jet Propulsion Laboratory, (5) School of Physics and Astronomy, Cardiff University, (6) Cavendish Laboratory, University of Cambridge, (7) Department of Experimental Physics, National University of Ireland Maynooth, (8) CENTRA, Departamento de Fisica, Universidade Tecnica de Lisboa, (9) Institute for Astronomy, University of Edinburgh, (10) Kavli Institute for Cosmological Physics, Department of Astronomy & Astrophysics, Enrico Fermi Institute, University of Chicago, (11) Laboratoire APC/CNRS, Batiment Condorcet, (12) School of Physics and Astronomy, University of Manchester)

First Study of Neutron Tagging with a Water Cherenkov Detector

• Authors: Hideki Watanabe, Haibing Zhang (The Super-Kamiokande Collaboration)

tipa -- 11/5/2008

HD 271791: An Extreme Supernova Runaway B Star Escaping from the Galaxy

• Authors: Norbert Przybilla (1), Maria-Fernanda Nieva (1,2), Ulrich Heber (1), Keith Butler (3) ((1) Dr. Remeis-Observatory Bamberg, (2) MPI for Astrophysics Garching, (3) University Observatory Munich)

Mass loss from hot massive stars

• Authors: J. Puls, J. S. Vink, F. Najarro

The Spectral Shape and Photon Fraction as Signatures of the GZK-Cutoff

• Authors: Andrew M. Taylor, Felix A. Aharonian

tipa -- 11/4/2008

A Second Case of Variable Na I D Lines in a Highly-Reddened Type Ia Supernova

• Authors: S. Blondin (1,2), J. L. Prieto (3), F. Patat (1), P. Challis (2), M. Hicken (2), R. P. Kirshner (2), T. Matheson (4), M. Modjaz (5) ((1) ESO, (2) Harvard-Smithsonian CfA, (3) Ohio State University, (4) NOAO, (5) UC Berkeley)

The Atomic to Molecular Transition in Galaxies. II: HI and H_2 Column Densities

• Authors: Mark R. Krumholz, Christopher F. McKee, Jason Tumlinson

The minimum stellar metallicity observable in the Galaxy

• Authors: Anna Frebel, Jarrett L. Johnson, Volker Bromm

The Sub-parsec Scale Radio Properties of Southern Starburst Galaxies. II. Supernova Remnants, the Supernova Rate, and the Ionised Medium in the NGC 4945 Starburst

• Authors: E. Lenc, S. J. Tingay

Search for Charged Current Coherent Pion Production on Carbon in a Few-GeV Neutrino Beam

• Authors: SciBooNE Collaboration: K. Hiraide, et al

tipa -- 11/3/2008

Study of multi-muon events produced in p-pbar collisions at sqrt(s)=1.96 TeV

• Authors: CDF Collaboration

tipa -- 10/31/2008

Probing the Nature of the Vela X Cocoon

• Authors: Stephanie M. LaMassa, Patrick O. Slane, Okkie C. de Jager

Double Binary Pulsar Test of Dynamical Chern-Simons Modified Gravity

• Authors: Nicolas Yunes, David N. Spergel

tipa -- 10/30/2008

Mixing in Zero and Solar Metallicity Supernovae

• Authors: C.C. Joggerst, S.E. Woosley, Alexander Heger

Hard X-ray observations of PSR J1833-1034 and its associated pulsar wind nebula

• Authors: A. De Rosa (1), P. Ubertini (1), R. Campana (2), A. Bazzano (1), A. J. Dean (3), L. Bassani (4) ((1)INAF/IASF-Roma, (2) University of Rome La Sapienza, (3) University of Southampton, (4) INAF/IASF-Bologna)

Constraints on WIMP Dark Matter from the High Energy PAMELA $\bar{p}/p$ data

• Authors: F. Donato, D. Maurin, P. Brun, T. Delahaye, P. Salati

Dark Matter and Dark Radiation

• Authors: Lotty Ackerman, Matthew R. Buckley, Sean M. Carroll, Marc Kamionkowski

tipa -- 10/29/2008

Improved Standardization of Type II-P Supernovae: Application to an Expanded Sample

• Authors: Dovi Poznanski, Nathaniel Butler, Alexei V. Filippenko, Mohan Ganeshalingam, Weidong Li, Joshua S. Bloom, Ryan Chornock, Ryan J. Foley, Peter E. Nugent, Jeffrey M. Silverman, S. Bradley Cenko, Elinor L. Gates, Douglas C. Leonard, Adam A. Miller, Maryam Modjaz, Frank J. D. Serduke, Nathan Smith, Brandon J. Swift, Diane S. Wong

A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation

• Authors: O. Adriani, G. C. Barbarino, G. A. Bazilevskaya, R. Bellotti, M. Boezio, E. A. Bogomolov, L. Bonechi, M. Bongi, V. Bonvicini, S. Bottai, A. Bruno, F. Cafagna, D. Campana, P. Carlson, M. Casolino, G. Castellini, M. P. De Pascale, G. De Rosa, D. Fedele, A. M. Galper, L. Grishantseva, P. Hofverberg, S. V. Koldashov, S. Y. Krutkov, A. N. Kvashnin, A. Leonov, V. Malvezzi, L. Marcelli, W. Menn, V. V. Mikhailov, M. Minori, E. Mocchiutti, M. Nagni, S. Orsi, G. Osteria, P. Papini, M. Pearce, P. Picozza, M. Ricci, S. B. Ricciarini, M. Simon, R. Sparvoli, P. Spillantini, Y. I. Stozhkov, E. Taddei, A. Vacchi, E. Vannuccini, G. Vasilyev, S. A. Voronov, Y. T. Yurkin, G. Zampa, N. Zampa, V. G. Zverev

Observation of an anomalous positron abundance in the cosmic radiation

• Authors: O. Adriani, G. C. Barbarino, G. A. Bazilevskaya, R. Bellotti, M. Boezio, E. A. Bogomolov, L. Bonechi, M. Bongi, V. Bonvicini, S. Bottai, A. Bruno, F. Cafagna, D. Campana, P. Carlson, M. Casolino, G. Castellini, M. P. De Pascale, G. De Rosa, N. De Simone, V. Di Felice, A. M. Galper, L. Grishantseva, P. Hofverberg, S. V. Koldashov, S. Y. Krutkov, A. N. Kvashnin, A. Leonov, V. Malvezzi, L. Marcelli, W. Menn, V. V. Mikhailov, E. Mocchiutti, S. Orsi, G. Osteria, P. Papini, M. Pearce, P. Picozza, M. Ricci, S. B. Ricciarini, M. Simon, R. Sparvoli, P. Spillantini, Y. I. Stozhkov, A. Vacchi, E. Vannuccini, G. Vasilyev, S. A. Voronov, Y. T. Yurkin, G. Zampa, N. Zampa, V. G. Zverev

Tycho Brahe's 1572 supernova as a standard type Ia explosion revealed from its light echo spectrum

• Authors: Oliver Krause, Masaomi Tanaka, Tomonori Usuda, Takashi Hattori, Miwa Goto, Stephan Birkmann, Ken'ichi Nomoto

Hanohano: A Deep Ocean Anti-Neutrino Detector for Unique Neutrino Physics and Geophysics Studies

• Authors: John G. Learned, Stephen T. Dye, Sandip Pakvasa

tipa -- 10/28/2008

Non-linear Study of Bell's Cosmic Ray Current-driven Instability

• Authors: Mario A. Riquelme, Anatoly Spitkovsky (Princeton)

Discovery of a very high energy gamma-ray signal from the 3C 66A/B region

• Authors: MAGIC Collaboration: E. Aliu, et al

Disentangling Neutrino Oscillations

• Authors: Andrew G. Cohen, Sheldon L. Glashow, Zoltan Ligeti

On the possible causes of a rise with energy of the cosmic ray positron fraction

• Authors: Pasquale Dario Serpico

Physics of the ALICE experiment at the LHC

• Authors: A.A. Isayev

tipa -- 10/27/2008

Simultaneous polarization monitoring of SN2007uy and the axisymmetric SN2008D/XRF080109: isolating geometry from dust

• Authors: J. Gorosabel (1), A. de Ugarte Postigo (2), A.J. Castro-Tirado (1), I. Agudo (1), M. Jelinek (1), S. Leon (3), T. Augusteijn (4), J.P.U. Fynbo (5), J. Hjorth (5), M.J. Michalowski (5), D. Xu (5), P. Ferrero (6), D.A. Kann (6), S. Klose (6), A. Rossi (6), J.P. Madrid (7), A. LLorente (8), M. Bremer (9), J.-M. Winters (9) ((1) Instituto de Astrofisica de Andalucia (CSIC), Granada, Spain. (2) ESO, Chile. (3) IRAM, Granada, Spain. (4) NOT, La Palma, Spain. (5) DARK, Denmark. (6) TLS, Tautenburg, Germany. (7) McMaster University, Canada. (8) Herschel Science Operations Centre, Madrid, Spain. (9) IRAM, France)

tipa -- 10/24/2008

A low-frequency radio halo associated with a cluster of galaxies

• Authors: G. Brunetti, S. Giacintucci, R. Cassano, W. Lane, D. Dallacasa, T. Venturi, N. Kassim, G. Setti, W.D. Cotton, M. Markevitch

tipa -- 10/23/2008

Nucleosynthesis in Electron Capture Supernovae of AGB Stars

• Authors: S. Wanajo, K. Nomoto, H. -Th. Janka, F. S. Kitaura, B. Mueller

Radiative cooling in relativistic collisionless shocks. Can simulations and experiments probe relevant GRB physics?

• Authors: Mikhail V. Medvedev (KU), Anatoly Spitkovsky (Princeton)