today in particle astrophysics

Authors: Y. Ascasibar (1), P. Jean (2), C. Boehm (3,4), J. Knoedlseder (2) ((1) Harvard-Smithsonian CfA, USA, (2) Centre d'Etude Spatiale des Rayonnements, France, (3) LAPTH UMR-5108, France, (4) CERN, Switzerland)

Tracking quintessence and k-essence in a general cosmological background

Authors: Rupam Das, Thomas W. Kephart, Robert J. Scherrer

Papers -- 9/7/2006

Constraints on the Geometry of the VHE Emission in LS 5039 from Photon-Photon Deabsorption

Authors: Markus Boettcher

Positron Annihilations at the Galactic Center: Generating More Questions Than Answers

Authors: Hasan Yuksel (Ohio State University)

The Supernova -- Gamma-Ray Burst Connection

Authors: S. E. Woosley (UC Santa Cruz), J. S. Bloom (UC Berkeley)

On the multiwavelength spectrum of the microquasar 1E 1740.7-2942

Authors: V. Bosch-Ramon, G. E. Romero, J. M. Paredes, A. Bazzano, M. Del Santo, L. Bassani

Astronomy with Small Telescopes

Authors: Bohdan Paczynski

A Putative Early-Type Host Galaxy for GRB 060502B: Implications for the Progenitors of Short-Duration Hard-Spectrum Bursts

Authors: J. S. Bloom, D. A. Perley (UC Berkeley), H.-W. Chen (U Chicago), N. Butler (UC Berkeley), J. X. Prochaska (UCO Lick), D. Kocevski (UC Berkeley), C. H. Blake, A. Szentgyorgyi, E. E. Falco (Harvard/CfA)

Papers -- 9/6/2006

From nuclear clusters to halo globulars: Star clusters as basic galactic building blocks

Authors: Richard de Grijs (University of Sheffield, UK)

Turning AGN Microlensing From a Curiosity Into a Tool

Authors: C. S. Kochanek (1), X.Dai (1), C. Morgan (1), N. Morgan (1), S. Poindexter (1), G. Chartas (2) ((1) Department of Astronomy, The Ohio State University, (2) Department of Astronomy and Astrophysics, Pennsylvania State University)

Ultra High Energy Cosmic Rays: Observations and Theoretical Aspects

Authors: Daniel De Marco

Problems in a weakless universe

Authors: L. Clavelli, R. E. White III

Papers -- 9/5/2006

Production of Hypervelocity Stars through Encounters with Stellar-Mass Black Holes in the Galactic Centre

Authors: Ryan M. O'Leary, Abraham Loeb (Harvard University)

Magnetar-Driven Magnetic Tower as a Model for Gamma-Ray Bursts and Asymmetric Supernovae

Authors: Dmitri A. Uzdensky (Princeton University and CMSO), Andrew I. MacFadyen (IAS)

Oxygen abundances in the Galactic Bulge: evidence for fast chemical enrichmen

Authors: M. Zoccali, A. Lecureur, B. Barbuy, V. Hill, A. Renzini, Y. Momany, A. Gomez, S. Ortolani

H.E.S.S. Observations of LS 5039

Authors: Mathieu De Naurois (LPNHE), the H.E.S.S. Collaboration Collaboration

First results from the Pierre Auger Observatory

Authors: R. C. Shellard

Suzaku observation of the metallicity distribution in the intracluster medium of the Fornax cluster

Authors: Kyoko Matsushita, Yasushi Fukazawa, John P. Hughes, Takao Kitaguchi, Kazuo Makishima, Kazuhiro Nakazawa, Takaya Ohashi, Naomi Ota, Takayuki Tamura, Miyako Tozuka, Takeshi Go Tsuru, Yuji Urata, Noriko Y. Yamasaki

The Galaxy Mass Function up to z=4 in the GOODS-MUSIC sample: into the epoch of formation of massive galaxies

Authors: A. Fontana (1), S. Salimbeni (1), A. Grazian (1), E. Giallongo (1), L. Pentericci (1), M. Nonino (2), F. Fontanot (3), N. Menci (1), P. Monaco (3,2), S. Cristiani (2), E. Vanzella (2), C. De Santis (1), S. Gallozzi (1) ((1) INAF - Osservatorio Astronomico di Roma, Monteporzio (RM), Italy, (2) INAF - Osservatorio Astronomico di Trieste, Trieste, Italy, (3) Dipartimento di Astronomia, Universita' di Trieste, Trieste, Italy)

Indirect search for dark matter with AMS in positrons, gamma and antiprotons channels

Authors: Diego Casadei

Five years of SGR 1900+14 observations with BeppoSAX

Authors: P. Esposito, S. Mereghetti, A. Tiengo, L. Sidoli, M. Feroci, P. Woods

Probing the growth of supermassive black holes at z>6 with LOFAR

Authors: Kirsty J. Rhook (1), Martin G. Haehnelt (1 and 2) ((1) Institute of Astronomy, Cambridge, (2) Kavli Institute for Theoretical Physics, UCSB)

Two populations of metal-free stars in the early Universe

Authors: Thomas H. Greif, Volker Bromm

High energy neutrino yields from astrophysical sources I: Weakly magnetized sources

Authors: M. Kachelriess, R. Tomas

Microlensing of Lensed Supernovae

Authors: Gregory Dobler, Charles R. Keeton

Decay of heavy Majorana neutrinos using the full Boltzmann equation including its implications for leptogenesis

Authors: Anders Basboll (Univ. Aarhus), Steen Hannestad (Univ. Aarhus, MPI Physics, Munich)

Getting the most from NOvA and T2K

Authors: Olga Mena

Introduction to Non-Linear Algebra

Authors: V. Dolotin, A. Morozov

A Cosmological Three Level Neutrino Laser

Authors: Steen Hannestad, Jes Madsen

Papers -- 9/4/2006

Does the AGN Unified Model Evolve with Redshift? Utilizing the X-ray Background to Predict the Mid-Infrared Emission of AGN

Authors: D.R. Ballantyne (1), Y. Shi (2), G.H. Rieke (2), J.L. Donley (2), C. Papovich (2), J.R. Rigby (2) ((1) Dept. of Physics, Univ. of Arizona (2) Steward Obs., Univ. of Arizona)

Slow Roll Reconstruction: Constraints on Inflation from the 3 Year WMAP Dataset

Authors: Hiranya Peiris (KICP/EFI, U. Chicago), Richard Easther (Yale)

The cosmic star formation rate evolution from z=5 to z=0 from the VIMOS VLT Deep Survey

Authors: L. Tresse, O. Ilbert, E. Zucca, G. Zamorani, S. Bardelli, S. Arnouts, S. Paltani, L. Pozzetti, D. Bottini, B. Garilli, V. Le Brun, O. Le Fevre, D. Maccagni, J.-P. Picat, R. Scaramella, M. Scodeggio, G. Vettolani, A. Zanichelli, C. Adami, M. Arnaboldi, M. Bolzonella, A. Cappi, S. Charlot, P. Ciliegi, T. Contini, S. Foucaud, P. Franzetti, I. Gavignaud, L. Guzzo, A. Iovino, H.J. McCracken, B. Marano, C. Marinoni, A. Mazure, B. Meneux, R. Merighi, R. Pello, A. Pollo, M. Radovich, M. Bondi, A. Bongiorno, G. Busarello, O. Cucciati, F. Lamareille, G. Mathez, Y. Mellier, P. Merluzzi, V. Ripepi

The Electron Temperature Gradient in the Galactic Disk

Authors: C. Quireza (1, 2 and 3), R. T. Rood (3), T. M. Bania (4), D. S. Balser (5), W. J. Maciel (2) ((1) Observatorio Nacional, Brazil, (2) IAG/USP, Brazil, (3) University of Virginia, USA, (4) Institute for Astrophysical Research, Boston University, USA, (5) NRAO, Green Bank, USA)

New Galactic Wolf-Rayet stars, and candidates. An annex to The VIIth Catalogue of Galactic Wolf-Rayet Stars

Authors: Karel A. van der Hucht

Upper bounds on the low-frequency stochastic gravitational wave background from pulsar timing observations: current limits and future prospects

Authors: F. A. Jenet, G. B. Hobbs, W. van Straten, R. N. Manchester, M. Bailes, J. P. W. Verbiest, R. T. Edwards, A. W. Hotan, J. M. Sarkissian, S. M. Ord

Large Misalignment between Stellar and Dust Bars in NGC 3488 Revealed by Spitzer and SDSS

Authors: Chen Cao, Hong Wu, Zhong Wang, Luis C. Ho, Jia-Sheng Huang, Zu-Gan Deng

The Mid-IR Properties of Starburst Galaxies from Spitzer-IRS Spectroscopy

Authors: B.R. Brandl, J. Bernard-Salas, H.W.W. Spoon, D. Devost, G.C. Sloan, S. Guilles, Y. Wu, J.R. Houck, L. Armus, D.W. Weedman, V. Charmandaris, P.N. Appleton, B.T. Soifer, L. Hao, J.A. Marshall, S.J. Higdon, T.L. Herter

Can Electric Charges and Currents Survive in an Inhomogeneous Universe?

Authors: E. R. Siegel, J. N. Fry

Relating Diffusion Properties of Cosmic-Ray Electrons to Star Formation Activity within Normal Galaxies

Authors: E.J. Murphy (Yale), G. Helou (SSC/Caltech), L. Armus (SSC/Caltech), R.Braun (ASTRON), J.D.P. Kenney (Yale), the SINGS team

Local Voids as the Origin of Large-angle Cosmic Microwave Background Anomalies I

Authors: Kaiki Taro Inoue, Joseph Silk

NOvA and T2K: The race for the neutrino mass hierarchy

Authors: Olga Mena, Hiroshi Nunokawa, Stephen Parke

Has the Photon an Anomalous Magnetic Moment?

Authors: S. Villalba-Chávez, H. Pérez-Rojas

Papers -- 9/1/2006

Efficient Cosmological Parameter Estimation with Hamiltonian Monte Carlo

Authors: Amir Hajian (Princeton)

Proto-Neutron Star Winds with Magnetic Fields and Rotation

Authors: Brian D. Metzger, Todd A. Thompson, Eliot Quataert

PAMELA - A Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics

Authors: P. Picozza, A.M. Galper, G. Castellini, O. Adriani, F. Altamura, M. Ambriola, G.C. Barbarino, A. Basili, G.A. Bazilevskaja, R. Bencardino, M. Boezio, E.A. Bogomolov, L. Bonechi, M. Bongi, L. Bongiorno, V. Bonvicini, F. Cafagna, D. Campana, P. Carlson, M. Casolino, C. De Marzo, M.P. De Pascale, G. De Rosa, D. Fedele, P. Hofverberg, S.V. Koldashov, S.Yu. Krutkov, A.N. Kvashnin, J. Lund, J. Lundquist, O. Maksumov, V. Malvezzi, L. Marcelli, W. Menn, V.V. Mikhailov, M. Minori, S. Misin, E. Mocchiutti, A. Morselli, N.N. Nikonov, S. Orsi, G. Osteria, P. Papini, M. Pearce, M. Ricci, S.B. Ricciarini, M.F. Runtso, S. Russo, M. Simon, R. Sparvoli, P. Spillantini, Yu.I. Stozhkov, E. Taddei, A. Vacchi, E. Vannuccini, S.A. Voronov, Y.T. Yurkin, G. Zampa, N. Zampa, V.G. Zverev

Assessing The Starburst Contribution to the Gamma-Ray and Neutrino Backgrounds

Authors: Todd A. Thompson, Eliot Quataert, Eli Waxman, Abraham Loeb

K-band spectroscopy of deeply embedded, young OB stars

Authors: A. Bik (ESO, Garching), L. Kaper (Amsterdam), M.M. Hanson (Cincinnati), L.B.F.M. Waters (Amsterdam, Leuven)

The population in the background of open clusters: Tracer of the Norma-Cygnus arm

Authors: A. K. Pandey, S. Sharma, K. Ogura

Dark Matter: the Connection with Gamma-Ray Astrophysics

Authors: Gianfranco Bertone

High-energy gamma-ray emission from the inner jet of LS I+61 303: the hadronic contribution revisited

Authors: M. Orellana, G.E. Romero

The Origin of Diffuse X-ray and $\gamma$-ray Emission from the Galactic Center Region: Cosmic Ray Particles

Authors: F. Yusef-Zadeh, M. Muno, M. Wardle, D.C. Lis

Modeling the Emission Processes in Blazars

Authors: Markus Boettcher (Ohio University)

The Afterglow, Energetics and Host Galaxy of the Short-Hard Gamma-Ray Burst 051221a

Authors: A. M. Soderberg, E. Berger, M. Kasliwal, D. A. Frail, P. A. Price, B. P. Schmidt, S. R. Kulkarni, D. B. Fox, S. B. Cenko, A. Gal-Yam, E. Nakar, K. C. Roth

An optical supernova associated with the X-ray flash XRF 060218

Authors: E. Pian, P.A. Mazzali, N. Masetti, P. Ferrero, S. Klose, E. Palazzi, E. Ramirez-Ruiz, S.E. Woosley, C. Kouveliotou, J. Deng, A.V. Filippenko, R. Foley, J. Fynbo, D.A. Kann, W. Li, J. Hjorth, K. Nomoto, F. Patat, D. Sauer, J. Sollerman, P.M. Vreeswijk, E.W. Guenther, A. Levan, P. O'Brien, N. Tanvir, R.A.M.J. Wijers, C. Dumas, O. Hainaut, D.S. Wong, D. Baade, L. Wang, L. Amati, E. Cappellaro, A.J. Castro-Tirado, S. Ellison, F. Frontera, A.S. Fruchter, J. Greiner, K. Kawabata, C. Ledoux, K. Maeda, P. Moller, L. Nicastro, E. Rol, R. Starling

See also: Nature

The Starburst Contribution to the Extra-Galactic Gamma-Ray Background

Authors: Todd A. Thompson, Eliot Quataert, Eli Waxman

A Search for Neutrinos from the Solar hep Reaction and the Diffuse Supernova Neutrino Background with the Sudbury Neutrino Observatory

Authors: The SNO Collaboration

Probing Very High Energy Prompt Muon and Neutrino fluxes and the cosmic ray knee via Underground Muons

Authors: Raj Gandhi, Sukanta Panda

Papers -- 8/31/2006

Measuring the matter density using baryon oscillations in the SDSS

Authors: Will J. Percival, Robert C. Nichol, Daniel J. Eisenstein, David H. Weinberg, Masataka Fukugita, Adrian C. Pope, Donald P. Schneider, Alex S. Szalay, Michael S. Vogeley, Idit Zehavi, Neta A. Bahcall, Jon Brinkmann, Andrew J. Connolly, Jon Loveday, Avery Meiksin

The structure of dark matter halos: self-similar models versus N-body simulations

Authors: Leonid Chuzhoy

0.5 Mpc-scale extended X-ray emission in 4C 23.56

Authors: O. Johnson, O. Almaini, P.N. Best, J. Dunlop

Extremely compact massive galaxies at z~1.4

Authors: I. Trujillo, G. Feulner, Y. Goranova, U. Hopp, M. Longhetti, P. Saracco, R. Bender, V.Braito, R. Della Ceca, N. Drory, F. Mannucci, P. Severgnini

Gravitational Lensing in Modified Gravity and the Lensing of Merging Clusters without Dark Matter

Authors: J. W. Moffat

Could GRB 060614 and its presumed host galaxy be a chance superposition?

Authors: B. E. Cobb, C. D. Bailyn, P. G. van Dokkum, P. Natarajan (Yale)

Is the dark matter interpretation of the EGRET gamma excess compatible with antiproton measurements?

Authors: Lars Bergstrom, Joakim Edsjo, Michael Gustafsson, Pierre Salati

Jet Breaks in Short Gamma-Ray Bursts. II: The Collimated Afterglow of GRB 051221A

Authors: David N. Burrows, Dirk Grupe, Milvia Capalbi, Alin Panaitescu, Sandeep K. Patel, Chryssa Kouveliotou, Bing Zhang, Peter Meszaros, Guido Chincarini, N. Gehrels, Ralph A.M. Wijers

The Compton-Getting effect on ultra-high energy cosmic rays of cosmological origin

Authors: M. Kachelriess, P.D. Serpico

Liberties in Nature

Authors: Petr Hajicek

Oscillations of solar atmosphere neutrinos

Authors: G.L. Fogli, E. Lisi, A. Mirizzi (Bari U. & INFN, Bari), D. Montanino (Lecce U. & INFN, Lecce), P.D. Serpico (Munich, Max Planck Inst.)

Papers -- 8/30/2006

Can Cosmic Structure form without Dark Matter?

Authors: Scott Dodelson, Michele Liguori

Cosmological Constraints from the SDSS Luminous Red Galaxies

Authors: M. Tegmark, D. Eisenstein, M. Strauss, D. Weinberg, M. Blanton, J. Frieman, M. Fukugita, J. Gunn, A. Hamilton, G. Knapp, R. Nichol, J. Ostriker, N. Padmanabhan, W. Percival, D. Schlegel, D. Schneider, R. Scoccimarro, U. Seljak, H. Seo, M. Swanson, A. Szalay, M. Vogeley, J. Yoo, I. Zehavi, K. Abazajian, S. Anderson, J. Annis, N. Bahcall, B. Bassett, A. Berlind, J. Brinkmann, T. Budavari, F. Castander, A. Connolly, I. Csabai, M. Doi, D. Finkbeiner, B. Gillespie, K. Glazebrook, G. Hennessy, D. Hogg, Z. Ivezic, B. Jain, D. Johnston, S. Kent, D. Lamb, B. Lee, H. Lin, J. Loveday, R. Lupton, J. Munn, K. Pan, C. Park, J. Peoples, J. Pier, A. Pope, M. Richmond, C. Rockosi, R. Scranton, R. Sheth, A. Stebbins, C. Stoughton, I. Szapudi, D. Tucker, D. Vanden Berk, B. Yanny, D. York

Observation of the Anisotropy of 10 TeV Primary Cosmic Ray Nuclei Flux with the Super-Kamiokande-I Detector

Authors: Gene Guillian, for the Super-Kamiokande Collaboration

The History of Cosmological Star Formation: Three Independent Approaches and a Critical Test Using the Extragalactic Background Light

Authors: Kentaro Nagamine (UCSD), Jeremiah P. Ostriker (Princeton), Masataka Fukugita (ICRR, IAS), Renyue Cen (Princeton)

Low Luminosity Gamma-Ray Bursts as a Unique Population: Luminosity Function, Local Rate, and Beaming Factor

Authors: Enwei Liang, Bing Zhang, Francisco Virgili, Z. G. Dai

Loop Quantum Gravity Modification of the Compton Effect

Authors: Kourosh Nozari, S. Davood Sadatian

Loop Quantum Gravity: An Inside View

Authors: Thomas Thiemann

1951 Lectures on Advanced Quantum Mechanics Second Edition

Authors: Freeman J. Dyson

Papers -- 8/29/2006

Bound-State Effects on Light-Element Abundances in Gravitino Dark Matter Scenarios

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

Gravitational Wave Sources from New Physics

Authors: Craig J. Hogan

Search for the possible emission regions for different categories of gamma-ray bursts

Authors: Zhibin Zhang, G. Z. Xie, J. G. Deng, B. T.Wei

The Metallicity of Galaxy Disks: Infall versus Outflow

Authors: J. J. Dalcanton

"Anomalous" Optical GRB Afterglows are Common: Two z~4 Bursts, GRB 060206 and 060210

Authors: K. Z. Stanek, X. Dai, J. L. Prieto, D. An, P. M. Garnavich, M. L. Calkins, J. Serven, G. Worthey, H. Hao, A. Dobrzycki, C. Howk, T. Matheson

A neutron-star-driven X-ray flash associated with supernova SN 2006aj

Authors: Paolo A. Mazzali (1,3,4,5), Jinsong Deng (2,3,5), Ken'ichi Nomoto (3,5), Daniel N. Sauer (4,5), Elena Pian (4,5), Nozomu Tominaga (3,5), Masaomi Tanaka (3), Keiichi Maeda (3,5), Alexei V. Filippenko (6) ((1) MPA, Germany, (2) NAOC, China, (3) U. Tokyo, Japan, (4) INAF-OATs, Italy, (5) KITP-UCSB, CA, (6) UC Berkeley, CA)