today in particle astrophysics

tipa -- 11/9/2006

The Low-Mass X-ray Binary and Globular Cluster Connection in Virgo Cluster Early-type Galaxies: Optical Properties

Authors: Gregory R. Sivakoff (1,2), Andrés Jordán (3), Craig L. Sarazin (1), John P. Blakeslee (4), Patrick C{\^ o}t{\' e} (5), Laura Ferrarese (5), Adrienne M. Juett (1), Simona Mei (6,7), Eric W. Peng (5) ((1) University of Virginia, (2) The Ohio State University, (3) European Southern Observatory, (4) Washington State University, (5) Herzberg Institute of Astrophysics, (6) Observatoire de Paris, (7) Johns Hopkins University)

Swift and XMM-Newton Observations of the Extraordinary GRB 060729: An afterglow with a more than 100 days X-ray light curve

Authors: Dirk Grupe (PSU), Caryl Gronwall (PSU), Xiang-Yu Wang (PSU), Peter Roming (PSU), Jay Cummings (NASA/GSFC), Bing Zhang (Univ of NV), Peter Meszaros (PSU, Maria Diaz Trigo (ESO/SCIOPS), Paul T. O'Brien (U Leicester), Kim Page (U Leicester), Andy Beardmore (U Leicester), Olivier Godet (U Leicester), Daniel vanden Berk (PSU), Peter Brown (PSU), Scott Koch (PSU), David Morris (PSU), Michael Stroh (PSU), David N. Burrows (PSU), John A. Nousek (PSU), Margaret McMath Chester (PSU), Stefan Immler (NASA/GSFC), Vanessa Mangano (INAF-OAB), Patrizia Romano INAF-OAB), Guido Chincarini (INAF-OAB), Takanori Sakamoto (NASA/GSFC), Neil Gehrels (NASA/GSFC)

GRB progenitors and their environments

Authors: Davide Lazzati (JILA, University of Colorado)

Massive star evolution at high metallicity

Authors: Georges Meynet, Nami Mowlavi, Andre Maeder

Uncertainties in Atmospheric Neutrino Fluxes

Authors: G.D. Barr, T.K. Gaisser, S. Robbins, T. Stanev

Upper limits to surface force disturbances on LISA proof masses and the possibility of observing galactic binaries

Authors: Ludovico Carbone, Giacomo Ciani, Rita Dolesi, Mauro Hueller, David Tombolato, Stefano Vitale, William Joseph Weber (Department of Physics, University of Trento and INFN, Gruppo Collegato di Trento, Italy) Antonella Cavalleri (Istituto di Fotonica e Nanotecnologie CNR-ITC and INFN Gruppo Collegato di Trento, Italy)

tipa -- 11/8/2006

Best-Bet Astrophysical Neutrino Sources

Authors: Charles D. Dermer (NRL)

Gamma-Ray Burst jet dynamics and their interaction with the progenitor star

Authors: Davide Lazzati, Brian J. Morsony, Mitchell C. Begelman (JILA, University of Colorado)

External Shocks, UHECRs, and the Early Afterglow of GRBs

Authors: Charles D. Dermer (NRL)

Improved Measurements of the CMB Power Spectrum with ACBAR

Authors: C.L. Kuo (1,2), P.A.R. Ade (3), J.J. Bock (1,2), J.R. Bond (4), C.R. Contaldi (4,5), M.D. Daub (6), J.H. Goldstein (7), W.L. Holzapfel (6), A.E. Lange (1,2), M. Lueker (6), M. Newcomb (8), J.B. Peterson (9), C. Reichardt (1), J. Ruhl (7), M.C. Runyan (10), Z. Staniszweski (7), ((1) Caltech, (2) JPL, (3) Cardiff, (4) CITA, (5) Imperial, (6) Berkeley, (7) CWRU, (8) Yerkes, (9) CMU, (10) Chicago)

Supermassive binary black holes among cosmic gamma-ray sources

Authors: Frank M. Rieger

How large is the population of heavily obscured X-ray sources?

Authors: Filippo Frontera (1,2), Mauro Orlandini (1), Raffaella Landi (1), Andrea Comastri (3), Fabrizio Fiore (4), Giancarlo Setti (5,6), Lorenzo Amati (1), Enrico Costa (7), Nicola Masetti (1), Eliana Palazzi (1) ((1) INAF/IASF Bologna, (2) Uni Ferrara, (3) INAF/OA Bologna, (4) INAF/OA Roma, (5) Uni Bologna, (6) INAF/IRA, (7) INAF/IASF Roma)

Stable Massive Particles at Colliders

Authors: M. Fairbairn, A.C. Kraan, D.A. Milstead, T. Sjostrand, P. Skands, T. Sloan

A new way to detect the Higgs

Authors: S. Reucroft, Y. Srivastava, J. Swain, A Widom

An upper limit to the photon fraction in cosmic rays above 10^19 eV from the Pierre Auger Observatory

Authors: Pierre Auger Collaboration

tipa -- 11/7/2006

A New Population of High Redshift Short-Duration Gamma-Ray Bursts

Authors: E. Berger, D.B. Fox, P.A. Price, E. Nakar, A. Gal-Yam, D.E. Holz, B.P. Schmidt, A. Cucchiara, S.B. Cenko, S.R. Kulkarni, A.M. Soderberg, D.A. Frail, B.E. Penprase, A. Rau, E. Ofek, S.J. Bell Burnell, P.B. Cameron, L.L. Cowie, M.A. Dopita, I. Hook, B.A. Peterson, Ph. Podsiadlowski, K.C. Roth, R.E. Rutledge, S.S. Sheppard, A. Songaila

The Shadow of Dark Matter

Authors: Stefano Profumo (Caltech), Kris Sigurdson (IAS and UBC)

Limits on the Radiative Decay of Sterile Neutrino Dark Matter from the Unresolved Cosmic and Soft X-ray Backgrounds

Authors: Kevork N. Abazajian, Maxim Markevitch, Savvas M. Koushiappas, Ryan C. Hickox

Swift Discovery of Gamma-Ray Bursts without Jet Break Feature in their X-Ray Afterglows

Authors: G. Sato, R. Yamazaki, K. Ioka, T. Sakamoto, T. Takahashi, K. Nakazawa, T. Nakamura, K. Toma, D. Hullinger, M. Tashiro, A. M. Parsons, H. A. Krimm, S. D. Barthelmy, N. Gehrels, D. N. Burrows, P. T. O'Brien, J. P. Osborne, G. Chincarini, D. Q. Lamb

Long gamma-ray bursts without visible supernovae: a case study of redshift estimators and alleged novel objects

Authors: Shlomo Dado, Arnon Dar, A. De Rujula

Constraints on parameters of radiatively decaying dark matter from the galaxy cluster 1E0657-56

Authors: Alexey Boyarsky, Oleg Ruchayskiy, Maxim Markevitch

Galactic centre X-ray sources

Authors: Andrew J. Gosling, Reba M. Bandyopadhyay, Katherine M. Blundell

The Interplay Between Collider Searches For Supersymmetric Higgs Bosons and Direct Dark Matter Experiments

Authors: Marcela Carena, Dan Hooper, Alberto Vallinotto

Determination of Dark Matter Properties at High-Energy Colliders

Authors: Edward A. Baltz, Marco Battaglia, Michael E. Peskin, Tommer Wizansky

tipa -- 11/6/2006

On the absence of Wolf-Rayet Signatures in GRB Afterglow Spectra: Constraints on the GRB Progenitor Environment

Authors: Hsiao-Wen Chen (U of Chicago), Jason X. Prochaska (UCO/Lick Observatory), Josha S. Bloom (UC Berkeley), Enrico Ramirez-Ruiz (IAS), Miroslava Dessauges-Zavadsky (Geneva Observatory), Ryan J. Foley (UC Berkeley)

Extreme Properties Of GRB061007: A Highly Energetic Or A Highly Collimated Burst?

Authors: P. Schady, M.De Pasquale, M.J.Page, L.Vetere, S.B.Pandey, X.Y.Wang, J.Cummings, B.Zhang, S.Zane, A.Breeveld, D.N.Burrows, N.Gehrels. C.Gronwall, S.Hunsberger, C.Markwardt, K.O.Mason, P.Meszaros, S.R.Oates, C.Pagani, T.S.Poole, P.W.A.Roming, P.J.Smith, D.E.Vanden Berk

The Interstellar Medium of GRB Host Galaxies I. Echelle Spectra of Swift GRB Af terglows

Authors: J.X. Prochaska (1), H.-W. Chen (2), J. S. Bloom (3), M. Dessauges-Zavadsky (4), J. M. O'Meara (5), R. J. Foley (3), R. Bernstein (6), S. Burles (7), A. K. Dupree (8), E. Falco (8), I. B. Thompson (9) ((1) UCO/Lick, (2) U Chicago, (3) UC Berkeley, (4) Geneva Observatory, (5) Penn State-Worthington, (6) U Michigan, (7) MIT, (8) Harvard CfA, (9) Carnegie Observatories)

Direct Reconstruction of the Dark Energy Scalar-Field Potential

Authors: Chao Li (Caltech), Daniel E. Holz (LANL), Asantha Cooray (UC Irvine)

Status of the NEMO Project

Authors: Piera Sapienza (for the NEMO collaboration)

The host galaxies of long-duration GRBs in a cosmological hierarchical scenario

Authors: Sebastian E. Nuza, Patricia B. Tissera, Leonardo J. Pellizza, Diego G. Lambas, Cecilia Scannapieco, Maria E. De Rossi

Supernova 2002ic: the collapse of a stripped-envelope, massive star in a dense medium ?

Authors: S. Benetti, E. Cappellaro, M. Turatto, S. Taubenberger, A. Harutyunyan, S. Valenti

Observations of the Askaryan Effect in Ice

Authors: The ANITA collaboration: S. W. Barwick (1), J. J. Beatty (2), D. Z. Besson (3), W. R. Binns (4), P. Chen (5), J. M. Clem (6), A. Connolly (7), P. F. Dowkontt (4), M. A. DuVernois (8), R. C. Field (5), D. Goldstein (1), A. Goodhue (7) P. W. Gorham (9), C. Hast (5), C. L. Hebert (9), S. Hoover (7), M. H. Israel (4), J. Kowalski, (9) J. G. Learned (9), K. M. Liewer (10), J. T. Link (9), E. Lusczek (8), S. Matsuno (9), B. Mercurio (2), C. Miki (9), P. Miocinovic (9), J. Nam (1), C. J. Naudet (11), J. Ng (5), R. Nichol (2), K. Palladino (2), K. Reil (5), A. Romero-Wolf (9) M. Rosen (9), D. Saltzberg (7), D. Secke (6), G. S. Varner (9), D. Walz (5), F. Wu (11), ((1)U.C. Irvine,(2)Ohio State Univ.,(3)Univ. of Kansas, (4)Washington Univ. in St. Louis, (5)Stanford Linear Accelerator Center, (6)University of Delaware, (7)UCLA, (8)Univ. of Minnesota,(9)Univ. of Hawaii, Manoa, (10)Jet Propulsion Laboratory.)

tipa -- 11/3/2006

Five years of searches for point sources of astrophysical neutrinos with the AMANDA-II neutrino telescope

Authors: A. Achterberg, et al. (the IceCube Collaboration)

Simulating cosmic rays in clusters of galaxies: I. effects on the Sunyaev-Zel'dovich effect and the X-ray emission

Authors: Christoph Pfrommer (1), Torsten A. Ensslin (2), Volker Springel (2), Martin Jubelgas (2), Klaus Dolag (2) ((1) CITA, (2) MPA)

Deep Mixing of He-3: Reconciling Big Bang and Stellar Nucleosynthesis

Authors: Peter P Eggleton, David S P Dearborn, John C Lattanzio

Star formation in the central regions of galaxies

Authors: J. H. Knapen (1), E. L. Allard (1), L. M. Mazzuca (2), M. Sarzi (1), R. F. Peletier (3) ((1) Univ. of Hertfordshire, (2) NASA-GSFC, (3) Univ. of Groningen)

Guaranteed and Prospective Galactic TeV Neutrino Sources

Authors: Matthew D. Kistler, John F. Beacom (The Ohio State University)

Minimal Extension of the Standard Model Scalar Sector

Authors: Donal O'Connell, Michael J. Ramsey-Musolf, Mark B. Wise

Status report (2006) of the ANTARES project

Authors: Maurizio Spurio, for the ANTARES Collaboration

New physics from ultrahigh energy cosmic rays

Authors: J.I. Illana, M. Masip, D. Meloni

tipa -- 11/2/2006

Enhanced Cosmic Ray Flux and Ionization for Star Formation in Molecular Clouds Interacting with Supernova Remnants

Authors: M. Fatuzzo, F. C. Adams, F. Melia

Refined Astrometry and Positions for 179 Swift X-ray Afterglows

Authors: N.R. Butler

On the Progenitor of Supernova 1987A

Authors: M. Parthasarathy, David Branch, E. Baron, David J. Jeffery

A Revised Prescription for the Tayler-Spruit Dynamo: Magnetic Angular Momentum Transport in Stars

Authors: Pavel A. Denissenkov (1,2), Marc Pinsonneault (1) ((1) The Ohio State University, (2) On leave from St. Petersburg State University)

QCD corrections to neutralino annihilation

Authors: Heather E. Logan (Carleton U.)

Self Interacting Dark Matter in the Solar System

Authors: Pankaj Jain, Sarah Stokes

Ionic Binding in a Susy Background

Authors: L. Clavelli, T. Lovorn

On the Multiple Deaths of Whitehead's Theory of Gravity

Authors: Gary Gibbons (DAMTP), Clifford M. Will (Washington Univ. St. Louis)

On solutions of a Heavenly equations and their generalizations

Authors: Valerii Dryuma

tipa -- 11/1/2006

Gravitational Lensing of Supernova Neutrinos

Authors: Olga Mena, Irina Mocioiu, Chris Quigg

Cosmic Neutrino Bound on the Dark Matter Annihilation Rate in the Late Universe

Authors: John F. Beacom (Ohio State University)

The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era

Authors: Roberto Gilli (INAF-OABo), Andrea Comastri (INAF-OABo), Guenther Hasinger (MPE)

Open questions with ultra-high energy cosmic rays

Authors: Pasquale Blasi (1) ((1) INAF/Arcetri Astrophysical Observatory)

Temporal Profiles and Spectral Lags of XRF 060218

Authors: En-Wei Liang, Bin-Bin Zhang, Mike Stamatikos, Bing Zhang, Jay Norris, Neil Gehrels, Jin Zhang, Z. G. Dai

Background Modelling in Very-High-Energy gamma-ray Astronomy

Authors: D. Berge, S. Funk, J. Hinton

GLAST: physics goals and instrument status

Authors: Jennifer E. Carson

Constraints on the parameters of radiatively decaying dark matter from the dark matter halo of the Milky Way and Ursa Minor

Authors: Alexey Boyarsky, Jukka Nevalainen, Oleg Ruchayskiy

Gamma-rays from halos around stars and the Sun

Authors: Elena Orlando, Andrew Strong (Max-Planck-Institut fuer extraterrestrische Physik, Garching)

tipa -- 10/31/2006

Shining light through the Sun

Authors: Malcolm Fairbairn, Timur Rashba, Sergey Troitsky

Long-term monitoring of the X-ray afterglow of GRB 050408 with Swift/XRT

Authors: M. Capalbi, D. Malesani, M. Perri, P. Giommi, S. Covino, G. Cusumano, V. Mangano, T. Mineo, S. Campana, G. Chincarini, V. La Parola, A. Moretti, P. Romano, G. Tagliaferri, L. Angelini, P. Boyd, D.N. Burrows, O. Godet, J.E. Hill, J.A. Kennea, F. Marshall, P.T. O'Brien, N. Gehrels

Quasar X-ray jets: Gamma-ray diagnostics of the synchrotron and inverse Compton hypotheses, the case of 3C 273

Authors: Markos Georganopoulos, Eric S. Perlman, Demosthenes Kazanas, Julie McEnery

High resolution gamma ray spectroscopy of flares on the east and west limbs of the Sun

Authors: M. J. Harris, V. Tatischeff, J. Kiener, M. Gros, G. Weidenspointner

Power Laws and the Cosmic Ray Energy Spectrum

Authors: J. D. Hague, B. R. Becker, M. S. Gold, J.A.J. Matthews

Low-Luminosity GRB 060218: A Collapsar Jet from a Neutron Star, Leaving a Magnetar as a Remnant?

Authors: Kenji Toma, Kunihito Ioka, Takanori Sakamoto, Takashi Nakamura

Winds From Massive Stars, And Implications for Supernovae and Gamma-Ray Bursts

Authors: Vikram V. Dwarkadas

The surface brightness of the Galaxy at the Solar Neighbourhood

Authors: A.-L. Melchior, F. Combes, A. Gould

The Ophiuchus Superbubble: A Gigantic Eruption from the Inner Disk of the Milky Way

Authors: Yurii Pidopryhora (1 and 2), Felix J. Lockman (1), Joseph C. Shields (2) ((1) National Radio Astronomy Observatory, (2) Ohio University)

Gamma-Ray Burst afterglows as probes of environment and blastwave physics I: absorption by host galaxy gas and dust

Authors: R. L. C. Starling (1,2), R. A. M. J. Wijers (1), K. Wiersema (1), E. Rol (2), P. A. Curran (1), C. Kouveliotou (3), A. J. van der Horst (1), M. H. M. Heemskerk (1) ((1) Amsterdam, (2) Leicester, (3) NASA/MSFC)

Parameterization of Gamma, e^+/- and Neutrino Spectra Produced by p-p Interaction in Astronomical Environment

Authors: Tuneyoshi Kamae, Niklas Karlsson, Tsunefumi Mizuno, Toshinori Abe, Tatsumi Koi

Model Independent Naturalness Bounds on Magnetic Moments of Majorana Neutrinos

Authors: Mikhail Gorchtein, Nicole F. Bell, Michael J. Ramsey-Musolf, Petr Vogel, Peng Wang

tipa -- 10/30/2006

Dissipation of jet bulk kinetic energy in powerful blazars

Authors: K. Katarzynski, G. Ghisellini

Intermediate inflation in light of the three-year WMAP observations

Authors: John D Barrow, Andrew R Liddle, Cédric Pahud

Instant nonthermal leptogenesis

Authors: Eun-Joo Ahn, Edward W. Kolb

Black Holes at IceCube

Authors: Luis A. Anchordoqui, Matthew M. Glenz, Leonard Parker

tipa -- 10/27/2006

Constraining Galactic Neutrino Production in $p\gamma$ Interactions with Cosmic Ray Electron and Positron Spectra

Authors: Nayantara Gupta (UNLV), Bing Zhang (UNLV)

Search for polarization from the prompt gamma-ray emission of GRB 041219a with SPI on INTEGRAL

Authors: E. Kalemci, S. E. Boggs, C. Kouveliotou, M. Finger, M. G. Baring

A NICMOS search for obscured Supernovae in starburst galaxies

Authors: G. Cresci, F. Mannucci, M. Della Valle, R. Maiolino

Origin of the Break and Mass-Dependence in the Wide-Binary Projected-Separation Distribution

Authors: Andrew Gould, Jason Eastman (Ohio State)

Hubble diagram of gamma-ray bursts: Robust evidence for a Chaplygin gas expansion-driven universe with phase transition at $z \simeq 3$

Authors: Herman J. Mosquera Cuesta, Habib Dumet M., Rodrigo Turcati, Carlos A. Bonilla Quintero, Cristina Furlanetto, Jefferson Morais

Quasars, Gamma Ray Bursters and BL Lacertids

Authors: Halton Arp

Neutrino Physics Probes Mysteries Of ‘Flavor’ and Origins

Author: Tom Siegfried

tipa -- 10/26/2006

Reconstructing the Cosmic Evolution of Quasars from the Age Distribution of Local Early-Type Galaxies

Authors: Zoltan Haiman (Columbia), Raul Jimenez (UPenn), Mariangela Bernardi (UPenn)

X-ray flares and the duration of engine activity in gamma-ray bursts

Authors: Davide Lazzati, Rosalba Perna (JILA, University of Colorado)

Can Astrophysical Gamma Ray Sources Mimic Dark Matter Annihilation in Galactic Satellites?

Authors: Edward A. Baltz, James E. Taylor, Lawrence L. Wai

Can we use Gamma Ray Bursts to probe high redshift star-formation?

Authors: F. Fiore, D. Guetta, S. Piranomonte, V. D'Elia, L.A. Antonelli

Evolution of the first stellar generations

Authors: R. Hirschi, A. Maeder, G. Meynet, C. Chiappini, S. Ekström

Neutrino-nucleus reactions in the delta resonance region

Authors: Barbara Szczerbinska, T. Sato, K. Kubodera, T.-S.H. Lee

UHE Cosmic Rays and Neutrinos Showering on Planet Edges

Authors: D. Fargion, P. Oliva, O. Lanciano

tipa -- 10/25/2006

Fragmentation of Collapsar Disks and the Production of Gravitational Waves

Authors: Anthony L. Piro, Eric Pfahl (KITP)

XMM observation of the SNR G337.2+0.1

Authors: Jorge A. Combi, Juan F. Albacete Colombo, Gustavo E. Romero, Paula Benaglia

Implications of the consistency of the peculiar GRBs 060218 and 060614 with the Ep,i - Eiso correlation

Authors: L. Amati, M. Della Valle, F. Frontera, D. Malesani, C. Guidorzi, E. Montanari, E. Pian

Measurement of the rare decay pi0 -> e+ e-

Authors: E. Abouzaid, et al

Upgraded experiments with super neutrino beams

Authors: V. Barger, Patrick Huber, Danny Marfatia, Walter Winter

Universal anti-baryon density in $e^+e^-$,$\gamma p$, pp, pA and AA collisions

Authors: Haidong Liu (1,2,3), Zhangbu Xu (2) ((1) University of Science and Technology of China, (2) Brookhaven National Laboratory, (3) Lawrence Berkeley National Laboratory)

tipa -- 10/24/2006

The Remarkable Afterglow of GRB 061007: Implications for Optical Flashes and GRB Fireballs

Authors: C.G. Mundell (1), A. Melandri (1), C. Guidorzi (1,2,3), S. Kobayashi (1), I.A. Steele (1), D. Malesani (4), L. Amati (5), P. D'Avanzo (3,6), D.F. Bersier (1), A. Gomboc (1,7), E. Rol (8), M.F. Bode (1), D. Carter (1), C.J. Mottram (1), A. Monfardini (1,9), R.J. Smith (1), S. Malhotra (10), J. Wang (11), N. Bannister (8), P.T. O'Brien (8), N.R.Tanvir (8) ((1) Liverpool John Moores University UK (2) Universitá di Milano-Bicocca, Italy (3) INAF-Osservatorio Astronomico di Brera, Italy (4) SISSA-ISAS, Italy (5) INAF - IASF Bologna, Italy (6) Università dell'Insubria, Italy (7) University in Ljubljana, Slovenia (8) University of Leicester, UK (9) CNRS-CTBT Grenoble, France (10) Arizona State University, U.S.A. (11) University of Science and Technology of China)