tipa -- 10/21/2008

Early Annihilation and Diffuse Backgrounds in 1/v WIMP models

• Authors: Marc Kamionkowski (Caltech), Stefano Profumo (UC Santa Cruz)

Inspiralling Supermassive Black Holes: A New Signpost for Galaxy Mergers

• Authors: Julia M. Comerford, Brian F. Gerke, Jeffrey A. Newman, Marc Davis, Renbin Yan, Michael C. Cooper, S.M. Faber, David C. Koo, Alison L. Coil, D.J. Rosario

Limits on an Energy Dependence of the Speed of Light from a Flare of the Active Galaxy PKS 2155-304

• Authors: H.E.S.S. Collaboration: F. Aharonian, et al.

First Results from the PAMELA Space Mission

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

MAGIC upper limits on the VHE gamma-ray emission from the satellite galaxy Willman 1

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

The Fermi Gamma Ray Space Telescope discovers the Pulsar in the Young Galactic Supernova-Remnant CTA 1

• Authors: The Fermi LAT Collaboration: G. Kanbach, K. Wood, M. Ziegler, et al

Recent Results from KamLAND

• Authors: Koichi Ichimura, for the KamLAND Collaboration

tipa -- 10/20/2008

Cosmic Analogues of the Stern-Gerlach Experiment and the Detection of Light Bosons

• Authors: Doron Chelouche, Eduardo I. Guendelman

Cosmological Inflation: Theory and Observations

• Authors: Daniel Baumann (Harvard), Hiranya V. Peiris (Cambridge)

tipa -- 10/17/2008

TeV Gamma Rays from Geminga and the Origin of the GeV Positron Excess

• Authors: Hasan Yuksel (Bartol Res. Inst., U. of Delaware), Matthew D. Kistler (Ohio State University), Todor Stanev (Bartol Res. Inst., U. of Delaware)

The Destruction of Thin Stellar Disks Via Cosmologically Common Mergers

• Authors: Chris W. Purcell (UC Irvine), Stelios Kazantzidis (CCAPP/OSU), James S. Bullock (UC Irvine)

Proving Inflation: A Bootstrap Approach

• Authors: Latham Boyle (CITA), Paul J. Steinhardt (Princeton)

Discovery of a very highly extinguished supernova in a luminous infrared galaxy

• Authors: E. Kankare, S. Mattila, S. Ryder, M.-A. Perez-Torres, A. Alberdi, C. Romero-Canizales, T. Diaz-Santos, P. Vaisanen, A. Efstathiou, A. Alonso-Herrero, L. Colina, J. Kotilainen

Propagation and Source Energy Spectra of Cosmic-Ray Nuclei at High Energies

• Authors: M. Ave, P.J. Boyle, C. Hoeppner, J. Marshall, D. Muller

tipa -- 10/16/2008

Neutron-Rich Freeze-Out in Viscously Spreading Accretion Disks Formed from Compact Object Mergers

• Authors: B. D. Metzger, A. L. Piro, E. Quataert

The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales

• Authors: Frank Bigiel (1), Adam Leroy (1), Fabian Walter (1), Elias Brinks (2), W.J.G. de Blok (3), Barry Madore (4), Michele D. Thornley (5) ((1) MPI f. Astronomy; (2) Univ. of Hertfordshire; (3) Univ. of Cape Town; (4) Carnegie Observatories; (5) Bucknell Univ.)

Time evolution of the line emission from the inner circumstellar ring of SN 1987A and its hot spots

• Authors: Per Groeningsson, Claes Fransson, Bruno Leibundgut, Peter Lundqvist, Peter Challis, Roger A. Chevalier, Jason Spyromilio

Discovery of gamma-ray emission from the shell-type supernova remnant RCW 86 with H.E.S.S

• Authors: HESS Collaboration: F. Aharonian, et al

Prospects of neutrino oscillation measurements in the detection of reactor antineutrinos with a medium-baseline experiment

• Authors: Mikhail Batygov, Stephen Dye, John Learned, Shigenobu Matsuno, Sandip Pakvasa, Gary Varner

tipa -- 10/15/2008

GRB 080913 at redshift 6.7

• Authors: J. Greiner, T. Kruehler, J.P.U. Fynbo, A. Rossi, R. Schwarz, S. Klose, S. Savaglio, N.R. Tanvir, S. McBreen, T. Totani, B.B. Zhang, X.F. Wu, D. Watson, S.D. Barthelmy, A.P. Beardmore, P. Ferrero, N. Gehrels, D.A. Kann, N. Kawai, A. Kuepcue Yoldas, P. Meszaros, B. Milvang-Jensen, S.R. Oates, D. Pierini, P. Schady, K. Toma, P.M. Vreeswijk, A. Yoldas, B. Zhang, P. Afonso, K. Aoki, D.N. Burrows, C. Clemens, R. Filgas, Z. Haiman, D.H. Hartmann, G. Hasinger, J. Hjorth, E. Jehin, A.J. Levan, E.W. Liang, D. Malesani, T.-S. Pyo, S. Schulze, G. Szokoly, H. Terada, K. Wiersema

Gamma-Ray Burst at the extreme: "the naked-eye burst" GRB 080319B

• Authors: P.R. Wozniak, W.T. Vestrand, A.D. Panaitescu, J.A. Wren, H.R. Davis, R.R. White (Los Alamos National Laboratory)

Constraints to Energy Spectra of Blazars based on Recent EBL Limits from Galaxy Counts

• Authors: F. Krennrich, E. Dwek, A. Imran

tipa -- 10/14/2008

Core-Collapse Astrophysics with a Five-Megaton Neutrino Detector

• Authors: Matthew D. Kistler, Hasan Yuksel (Ohio State), Shin'ichiro Ando (Caltech), John F. Beacom (Ohio State), Yoichiro Suzuki (Tokyo)

Solar Energetic Particle Spectrum on 13 December 2006 Determined by IceTop

Authors: R. Abbasi, for the IceCube Collaboration

Detection of the ultra-high z short GRB 080913 and its implications on progenitors and energy extraction mechanisms

• Authors: D. Perez-Ramirez, A. de Ugarte Postigo, J. Gorosabel, M. A. Aloy, M. A. Guerrero, J. P. Osborne, K. L. Page, R. S. Warwick, I. Horvath, P. Veres, M. Jelinek, P. Kubanek, S. Guziy, M. Bremer, J. M. Winters, A. J. Castro-Tirado

tipa -- 10/13/2008

Implications of Ultra-High-Energy Cosmic Rays for Transient Sources in the Auger Era

• Authors: Kohta Murase, Hajime Takami

Expanding Ejecta in the Oxygen-Rich Supernova Remnant G292.0+1.8: Direct Measurement through Proper Motions

• Authors: P. Frank Winkler, Karl Twelker, Claudine N. Reith, Knox S. Long

tipa -- 10/10/2008

The Mass and Radius of the Neutron Star in EXO 1745-248

• Authors: Feryal Ozel, Tolga Guver, Dimitrios Psaltis (University of Arizona)

Pulsars as the Sources of High Energy Cosmic Ray Positrons

• Authors: Dan Hooper, Pasquale Blasi, Pasquale Dario Serpico

X-Ray Observation of Very High Energy Gamma-Ray Source, HESS J1745-303, with Suzaku

• Authors: Aya Bamba (1), Ryo Yamazaki (2), Kazunori Kohri (3), Hironori Matsumoto (4), Stefan Wagner (5), Gerd Puehlhofer (5), Karl Kosack (6) ((1) ISAS/JAXA, (2) Hiroshima U., (3) Lancaster U., (4) Kyoto U., (5) LSW, (6) MPIK)

On the Origin of TeV Gamma-ray Emission from HESS J1834-087

• Authors: R. Mukherjee, E. V. Gotthelf, J. P. Halpern

Pulsar Timing for the Fermi Gamma-ray Space Telescope

• Authors: D. A. Smith, L. Guillemot, F. Camilo, I. Cognard, D. Dumora, C. Espinoza, P. C. C. Freire, E. V. Gotthelf, A. K. Harding, G. B. Hobbs, S. Johnston, V. M. Kaspi, M. Kramer, M. A. Livingstone, A. G. Lyne, R. N. Manchester, F. E. Marshall, M. A. McLaughlin, A. Noutsos, S. M. Ransom, M. S. E. Roberts, R. W. Romani, B. W. Stappers, G. Theureau, D. J. Thompson, S. E. Thorsett, N. Wang, P. Weltevrede

Probing the radio to X-ray connection of the Vela X PWN with Fermi LAT and t H.E.S.S

• Authors: O. C. de Jager, P. O. Slane, S. LaMassa

tipa -- 10/9/2008

High-Resolution Timing Observations of Spin-Powered Pulsars with the AGILE Gamma-Ray Telescope

• Authors: A. Pellizzoni, M. Pilia, A. Possenti, F. Fornari, P. Caraveo, E. Del Monte, S. Mereghetti, M. Tavani, A. Argan, A. Trois, M. Burgay, A. Chen, I. Cognard, E. Costa, N. D'Amico, P. Esposito, Y. Evangelista, M. Feroci, F. Fuschino, A. Giuliani, J. Halpern, G. Hobbs, A. Hotan, S. Johnston, M. Kramer, F. Longo, R. N. Manchester, M. Marisaldi, J. Palfreyman, P. Weltevrede, G. Barbiellini, F. Boffelli, A. Bulgarelli, P. W. Cattaneo, V. Cocco, F. D'Ammando, G. De Paris, G. Di Cocco, I. Donnarumma, M. Fiorini, T. Froysland, M. Galli, F. Gianotti, A. Harding, C. Labanti, I. Lapshov, F. Lazzarotto, P. Lipari, F. Mauri, A. Morselli, L. Pacciani, F. Perotti, P. Picozza, M. Prest, G. Pucella, M. Rapisarda, A. Rappoldi, P. Soffitta, M. Trifoglio, E. Vallazza, S. Vercellone, V. Vittorini, A. Zambra, et al. (7 additional authors not shown)

On the birthrates of Galactic neutron stars

• Authors: E. F. Keane, M. Kramer (Jodrell Bank Centre for Astrophysics, University of Manchester)

SN 2001em: Not so Fast

• Authors: F.K. Schinzel, G.B. Taylor, C.J. Stockdale, J. Granot, E. Ramirez-Ruiz

The Gamma-Ray-Flux Probability Distribution Function from Galactic Halo Substructure

• Authors: Samuel K. Lee, Shin'ichiro Ando, Marc Kamionkowski

tipa -- 10/8/2008

Broken Symmetries

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)

tipa -- 10/6/2008

SN 2006gy: was it really extra-ordinary?

• Authors: I. Agnoletto, S. Benetti, E. Cappellaro, L. Zampieri, M. Turatto, P. Mazzali, A. Pastorello, M. Della Valle, F. Bufano, A. Harutyunyan, H. Navasardyan, N. Elias-Rosa, S. Taubenberger, S. Spiro, S. Valenti

Recent Results from Super-Kamiokande

• Authors: H. Sekiya, for the Super-Kamiokande Collaboration

Recent $\nu$s from IceCube

• Authors: Spencer R. Klein, for the IceCube Collaboration

The polarized gluon contribution to the proton spin from the double helicity asymmetry in inclusive pi^0 production in polarized p+p collisions at sqrt(s)=200 GeV

• Authors: PHENIX Collaboration: A. Adare, et al

tipa -- 10/3/2008

A planetary nebula around nova V458 Vul undergoing flash ionization

• Authors: R. Wesson, M. J. Barlow, R. L. M. Corradi, J. E. Drew, P. J. Groot, C. Knigge, D. Steeghs, B. T. Gaensicke, R. Napiwotzki, P. Rodriguez-Gil, A. A. Zijlstra, M. F. Bode, J. J. Drake, D. J. Frew, E. A. Gonzalez-Solares, R. Greimel, M. J. Irwin, L. Morales-Rueda, G. Nelemans, Q. A. Parker, S. E. Sale, J. L. Sokoloski, A. Somero, H. Uthas, N. A. Walton, B. Warner, C. A. Watson, N. J. Wright

Deep MERLIN 5GHz Radio Imaging of Supernova Remnants in the M82 Starburst

• Authors: D. M. Fenech, T. W. B. Muxlow, R. J. Beswick, A. Pedlar, M. K. Argo

All-sky LIGO Search for Periodic Gravitational Waves in the Early S5 Data

• Authors: LIGO Scientific Collaboration

tipa -- 10/2/2008

Discovery of High-Energy Gamma-Ray Pulsations from PSR J2021+3651 with AGILE

• Authors: J. P. Halpern, F. Camilo, A. Giuliani, E. V. Gotthelf, M. A. McLaughlin, R. Mukherjee, A. Pellizzoni, S. M. Ransom, M. S. E. Roberts, M. Tavani

Tools for Dissecting Supernova Remnants Observed with Chandra: Methods and Application to the Galactic Remnant W49B

• 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