today in particle astrophysics

tipa -- 10/7/2008

The Highly Unusual Chemical Composition of the Hercules Dwarf Spheroidal Galaxy

Authors: A. Koch, A. McWilliam, E.K. Grebel, D.B Zucker, V. Belokurov

HVS7: a chemically peculiar hyper-velocity star

Authors: N. Przybilla (1), M. F. Nieva (1,2), A. Tillich (1), U. Heber (1), K. Butler (3), W. R. Brown (4) ((1) Dr. Remeis-Observatory Bamberg, (2) MPI for Astrophysics Garching, (3) University Observatory Munich, (4) Smithsonian Astrophysical Observatory)

Hadronic versus leptonic origin of the gamma-ray emission from Supernova Remnant RX J1713.6-3946

Authors: E.G. Berezhko (1), H.J. Völk (2) ((1) Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy) ((2) Max Planck Institut für Kernphysik)

Authors: Laura A. Lopez (1,2), Enrico Ramirez-Ruiz (1), David A. Pooley (3), Tesla E. Jeltema (4) ((1) University of California, Santa Cruz; (2) NSF Graduate Research Fellow; (3) University of Wisconsin, Madison; (4) UCO/Lick)

The effect of progenitor age and metallicity on luminosity and 56Ni yield in Type Ia supernovae

Authors: D. A. Howell, M. Sullivan, E. F. Brown, A. Conley, D. Le Borgne, E. Y. Hsiao, P. Astier, D. Balam, C. Balland, S. Basa, R. G. Carlberg, D. Fouchez, J. Guy, D. Hardin, I. M. Hook, R. Pain, K. Perrett, C. J. Pritchet, N. Regnault, S. Baumont, J. Le Du, C. Lidman, S. Perlmutter, N. Suzuki, E. S. Walker, J. C. Wheeler

Gamma ray emission from SNR RX J1713.7-3946 and the origin of galactic cosmic rays

Authors: G. Morlino, E. Amato, P. Blasi

Measurement of the Double Beta Decay Half-life of 150-Nd and Search for Neutrinoless Decay Modes with the NEMO-3 Detector

Authors: NEMO Collaboration: J. Argyriades, et al

tipa -- 10/1/2008

UHECR observations and lensing in the magnetic field of the Virgo cluster

Authors: K. Dolag, M. Kachelriess, D.V. Semikoz

Coronal lines and dust formation in SN 2005ip: Not the brightest, but the hottest Type IIn supernova

Authors: Nathan Smith, Jeffrey M. Silverman, Ryan Chornock, Alexei V. Filippenko, Xiaofeng Wang, Weidong Li, Mohan Ganeshalingam, Ryan J. Foley, Jacob Rex, Thea N. Steele

The neutrino signal from protoneutron star accretion and black hole formation

Authors: T. Fischer, S.C. Whitehouse, A. Mezzacappa, F.-K. Thielemann, M. Liebendörfer

Galactic secondary positron flux at the Earth

Authors: T. Delahaye (1), F. Donato (2), N. Fornengo (2), J. Lavalle (2), R. Lineros (2), P. Salati (1), R. Taillet (1). ((1) LAPTH/Annecy, CNRS-SPM and Universite' de Savoie 9, (2) University of Torino and INFN/Torino)

Can the Existence of Dark Energy Be Directly Detected?

Authors: Martin L. Perl

tipa -- 9/30/2008

The Impact of Neutrino Magnetic Moments on the Evolution of Massive Stars

Authors: Alexander Heger, Alexander Friedland, Maurizio Giannotti, Vincenzo Cirigliano

CMB Lensing and the WMAP Cold Spot

Authors: Sudeep Das, David N. Spergel

Correlative Spectral Analysis of Gamma-Ray Bursts using Swift-BAT and GLAST-GBM

Authors: Michael Stamatikos, Takanori Sakamoto, David L. Band

Gamma-ray halo around 3C 279: looking through the Sun on October 8

Authors: Malcolm Fairbairn, Timur Rashba, Sergey Troitsky

tipa -- 9/29/2008

Jet breaks at the end of the slow decline phase of Swift GRB lightcurves

Authors: M. De Pasquale, P. Evans, S. Oates, M. Page, S. Zane, P. Schady, A. Breeveld, S. Holland, P. Kuin, M. Still, P. Roming, P. Ward

A diatribe on expanding space

Authors: J.A. Peacock

classic papers of the week -- 83

Observations of Gamma-Ray Bursts of Cosmic Origin

Klebesadel, Ray W.; Strong, Ian B.; Olson, Roy A. (University of California, Los Alamos Scientific Laboratory, Los Alamos, NM)

Report on Waves: Made to the Meetings of the British Association in 1842-43

John Scott Russell

tipa -- 9/26/2008

Nonthermal X-Rays from Supernova Remnant G330.2+1.0 and the Characteristics of its Central Compact Object

Authors: Sangwook Park (Penn State), Oleg Kargaltsev (Florida), George G. Pavlov (Penn State), Koji Mori (Miyazaki), Patrick O. Slane (CfA), John P. Hughes (Rutgers), David N. Burrows, Gordon P. Garmire (Penn State)

The Sizes and Luminosities of Massive Star Clusters

Authors: N. W. Murray

tipa -- 9/25/2008

A global autocorrelation analysis of the Auger data

Authors: A. Cuoco, S. Hannestad, T. Haugboelle, M. Kachelriess, P. D. Serpico

Off-nuclear AGN as a signature of recoiling massive black holes

Authors: M. Volonteri, P. Madau

Very fast optical flaring from a possible new Galactic magnetar

Authors: A. Stefanescu, G. Kanbach, A. Słowikowska, J. Greiner, S. McBreen, G. Sala

Signals of the QCD phase transition in core-collapse supernovae

Authors: I. Sagert, M. Hempel, G. Pagliara, J. Schaffner-Bielich, T. Fischer, A. Mezzacappa, F.-K. Thielemann, M. Liebendörfer

Optical and infrared flares from a transient Galactic soft gamma-ray repeater

Authors: A.J. Castro-Tirado (1), A. de Ugarte Postigo (2,1), J. Gorosabel (1), M. Jelinek (1), T.A. Fatkhullin (3), V.V. Sokolov (3), P. Ferrero (4), D.A. Kann (4), S. Klose (4), D. Sluse (5), M. Bremer (6), J.M. Winters (6), D. Nuernberger (2), D. Perez-Ramirez (7), M.A. Guerrero (1), J. French (8), G. Melady (8), L. Hanlon (8), B. McBreen (8), F.J. Aceituno (1), R. Cunniffe (1), P. Kubanek (1), S. Vitek (1), S. Schulze (4), A.C. Wilson (9), R. Hudec (10), J.M. Gonzalez-Perez (11), T. Shahbaz (11), S. Guziy (12), S.B. Pandey (13), L. Pavlenko (14), E. Sonbas (3,15), S.A. Trushkin (3), N.N. Bursov (3), N.A. Nizhelskij (3), L. Sabau-Graziati (16) ((1) IAA-CSIC, Granada, Spain, (2) ESO, Chile, (3) SAO-RAS, Russia, (4) TLS, Tautenburg, Germany, (5) EFPL, Switzerland, (6) IRAM, France, (7) Univ. of Jaen, Jaen, Spain, (8) Univ. College, Dublin, Ireland, (9) Univ. of Texas, Austin, USA, (10) Institute of the Czech Academy of Sciences, Ondrejov, Czech Republic, (11) IAC, La Laguna, Tenerife, Spain, (12) Nikolaev State Univ., Nikolaev, Ukraine, (13) ARIES, Nainital, India, (14) Crimean Astrophysical Observatory, Nauchny, Ukraine, (15) Univ. of Cukurova, Adana, Turkey, (16) INTA, Torrejon de Ardoz, Madrid, Spain)

The muon g-2 discrepancy: errors or new physics?

Authors: M. Passera, W.J. Marciano, A. Sirlin

There is no explosion risk associated with superfluid Helium in the LHC cooling system

Authors: Malcolm Fairbairn, Bob McElrath

tipa -- 9/24/2008

HD molecules at high redshift: A low astration factor of deuterium in a solar-metallicity DLA system at z=2.418

Authors: P. Noterdaeme, P. Petitjean, C. Ledoux, R. Srianand, A. Ivanchik

Constraints on the Local Sources of Ultra High-Energy Cosmic Rays

Authors: Eli Waxman (Weizmann), Abraham Loeb (Harvard)

Quasars Are Not Light-Bulbs: Testing Models of Quasar Lifetimes with the Observed Eddington Ratio Distribution

Authors: Philip F. Hopkins (1), Lars Hernquist (2) ((1) UC Berkeley, (2) CfA)

A search for a dark matter annihilation signal towards the Canis Major overdensity with H.E.S.S

Authors: HESS Collaboration: F. Aharonian, et al

Gamma-ray burst detection with the AGILE mini-calorimeter

Authors: M. Marisaldi, C. Labanti, F. Fuschino, M. Galli, A. Argan, G. Barbiellini, M. Basset, F. Boffelli, A. Bulgarelli, P. Caraveo, P. W. Cattaneo, A. Chen, V. Cocco, E. Costa, F. D'Ammando, E. Del Monte, G. De Paris, G. Di Cocco, G. Di Persio, I. Donnarumma, Y. Evangelista, M. Feroci, A. Ferrari, M. Fiorini, L. Foggetta, T. Froysland, M. Frutti, F. Gianotti, A. Giuliani, I. Lapshov, F. Lazzarotto, F. Liello, P. Lipari, F. Longo, M. Mastropietro, E. Mattaini, A. Mauri, F. Mauri, S. Mereghetti, E. Morelli, A. Morselli, L. Pacciani, A. Pellizzoni, F. Perotti, P. Picozza, C. Pontoni, G. Porrovecchio, M. Prest, G. Pucella, M. Rapisarda, A. Rappoldi, E. Rossi, A. Rubini, P. Soffitta, M. Tavani, A. Traci, M. Trifoglio, A. Trois, E. Vallazza, S. Vercellone, V. Vittorini, A. Zambra, D. Zanello, C. Pittori, et al.

tipa -- 9/23/2008

Progenitor mass of the type IIP supernova 2005cs

Authors: V.P. Utrobin (1 and 2), N.N. Chugai (3) ((1) MPA, Garching; (2) ITEP, Moscow; (3) Institute of Astronomy, RAS, Moscow)

Global Search for New Physics with 2.0/fb at CDF

Authors: CDF Collaboration: T. Aaltonen, et al

tipa -- 9/22/2008

A model of the TeV flare of Cygnus X-1: electron acceleration and extended pair cascades

Authors: A. A. Zdziarski, J. Malzac, W. Bednarek

tipa -- 9/19/2008

Detection of pulsed gamma-ays above 25 GeV from the Crab pulsar

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

Simultaneous Triggered Collapse of the Presolar Dense Cloud Core and Injection of Short-Lived Radioisotopes by a Supernova Shock Wave

Authors: Alan P. Boss, Sergei I. Ipatov, Sandra A. Keiser, Elizabeth A. Myhill, Harri A. T. Vanhala

tipa -- 9/18/2008

The Least Luminous Galaxy: Spectroscopy of the Milky Way Satellite Segue 1

Authors: Marla Geha, Beth Willman, Josh D. Simon, Louis E. Strigari, Evan N. Kirby, David R. Law, Jay Strader

Weighing the spatial and temporal fluctuations of the dark universe

Authors: Pengjie Zhang (SHAO), Rachel Bean (Cornell), Michele Liguori (Cambridge), Scott Dodelson (Fermilab/Chicago)

First Measurement of the Neutron $\beta$-Asymmetry with Ultracold Neutrons

Authors: R.W. Pattie Jr, et al. (The UCNA Collaboration)

tipa -- 9/17/2008

High-Redshift Starbursting Dwarf Galaxies Revealed by GRB Afterglows

Authors: Hsiao-Wen Chen, Daniel A. Perley, Lindsey K. Pollack, J. X. Prochaska, J. S. Bloom, M. Dessauges-Zavadsky, M. Pettini, S. Lopez, A. Dall'Aglio, G. D. Becker

tipa -- 9/16/2008

H.E.S.S. Observations of the Prompt and Afterglow Phases of GRB 060602B

Authors: HESS Collaboration: F. Aharonian, et al

Inverse Compton gamma-ray models for remnants of Galactic type Ia supernovae?

Authors: H.J. Voelk (1), L.T. Ksenofontov (2), E.G. Berezhko (2) ((1) Max-Planck Institut fuer Kernphysik, Heidelberg, Germany, (2) Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, Yakutsk, Russia)

Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre

Authors: Sheperd Doeleman (1), Jonathan Weintroub (2), Alan E.E. Rogers (1), Richard Plambeck (3), Robert Freund (4), Remo P.J. Tilanus (5 and 6), Per Friberg (5), Lucy M. Ziurys (4), James M. Moran (2), Brian Corey (1), Ken H. Young (2), Daniel L. Smythe (1), Michael Titus (1), Daniel P. Marrone (7 and 8), Roger J. Cappallo (1), Douglas C.J. Bock (9), Geoffrey C. Bower (3), Richard Chamberlin (10), Gary R. Davis (5), Thomas P. Krichbaum (11), James Lamb (12), Holly Maness (3), Arthur E. Niell (1), Alan Roy (11), Peter Strittmatter (4), Daniel Werthimer (13), Alan R. Whitney (1), David Woody (12) ((1) MIT Haystack Observatory, (2) Harvard-Smithsonian Center for Astrophysics, (3) UC Berkeley, (4) University of Arizona - Arizona Radio Observatory, (5) James Clerk Maxwell Telescope, (6) Netherlands Organization for Scientific Research, (7) National Radio Astronomy Observatory, (8) Kavli Institute for Cosmological Physics, (9) Combined Array for Research in Millimeter-wave Astronomy, (10) Caltech Submillimeter Observatory, (11) Max-Planck-Institut fur Radioastronomie, (12) Owens Valley Radio Observatory, (13) UC Berkeley Space Sciences Laboratory)