today in particle astrophysics

tipa -- 9/11/2009

z~8 galaxies from ultra-deep WFC3/IR Observations over the HUDF

Authors: R.J. Bouwens (UCSC/Leiden), G.D. Illingworth (UCSC), P.A. Oesch (ETH Zurich), M. Stiavelli (STScI), P. van Dokkum (Yale), M. Trenti (Colorado), D. Magee (UCSC), I. Labbe (OCIW), M. Franx (Leiden), M. Carollo (ETH Zurich)

Hubble Space Telescope Observations of Short GRB Host Galaxies: Morphologies, Offsets, and Local Environments

Authors: Wen-fai Fong (Harvard), Edo Berger (Harvard), Derek B. Fox (PSU)

z~7 Galaxies in the HUDF: First Epoch WFC3/IR Results

Authors: P. A. Oesch, R. J. Bouwens, G. D. Illingworth, C. M. Carollo, M. Franx, I. Labbe, D. Magee, M. Stiavelli, M. Trenti, P. G. van Dokkum

Are all short-hard gamma-ray bursts produced from mergers of compact stellar objects?

Authors: Francisco J. Virgili, Bing Zhang, Paul O'Brien, Eleonora Troja

NGC 300 OT2008-1 As a Scaled-Down Version of the Eta Carinae Great Eruption

Authors: Amit Kashi, Adam Frankowski, Noam Soker

Further Searches for RRATs in the Parkes Multi-Beam Pulsar Survey

Authors: E. F. Keane (1), D. A. Ludovici (2), R. P. Eatough (1), M. Kramer (1,3), A. G. Lyne (1), M. A. McLaughlin (2,4), B. W. Stappers (1). (1 - Jodrell Bank Centre for Astrophysics, University of Manchester, 2 - Dept. of Physics, University of West Virginia, 3 - Max Planck Institut fur Radioastronomie, Bonn, 4 - National Radio Astronomy Observatory, Green Bank)

Tidal break-up of binary stars at the Galactic center and its consequences

Authors: Fabio Antonini, Joshua Faber, Alessia Gualandris, David Merritt

Sources of the Radio Background Considered

Authors: J. Singal, L. Stawarz, A. Lawrence, V. Petrosian

tipa -- 9/10/2009

The relation between the most-massive star and its parental star cluster mass

Authors: C. Weidner (1,2), P. Kroupa (3), I. Bonnell (1) ((1) St Andrews University, (2) Pontificia Universidad Catolica de Chile, (3) AIfA Bonn)

The Extragalactic Background Light Absorption Feature in the Blazar Component of the Extragalactic Gamma-ray Background

Authors: Tonia M. Venters (U. Chicago), Vasiliki Pavlidou (Caltech), Luis C. Reyes (KICP, U. Chicago)

The earliest stars and their relics in the Milky Way

Authors: L. Gao, Tom Theuns, C. S. Frenk, A. Jenkins, J. Navarro, V. Springel, S. D. M. White

Parameter Estimation from Improved Measurements of the CMB from QUaD

Authors: QUaD collaboration: S. Gupta (1), P. Ade (1), J. Bock (2,3), M. Bowden (1,4), M. L. Brown (5), G. Cahill (6), P. G. Castro (7,8), S. Church (4), T. Culverhouse (9), R. B. Friedman (9), K. Ganga (10), W. K. Gear (1), J. Hinderks (5,11), J. Kovac (3), A. E. Lange (4), E. Leitch (2,3), S. J. Melhuish (12), Y. Memari (7), J. A. Murphy (6), A. Orlando (1,3), C. O'Sullivan (6), L. Piccirillo (12), C. Pryke (9), N. Rajguru (1,13), B. Rusholme (4,14), R. Schwarz (9), A. N. Taylor (7), K. L. Thompson (4), A. H. Turner (1), E. Y. S. Wu (4), M. Zemcov (1,2,3) ((1) Cardiff University, (2) JPL, (3) Caltech, (4) Stanford University, (5) University of Cambridge, (6) National University of Ireland Maynooth, (7) University of Edinburgh, (8) Universidade Tecnica de Lisboa, (9) University of Chicago, (10) Laboratoire APC/CNRS, (11) NASA Goddard, (12) University of Manchester, (13) UCL, (14) IPAC)

Relativistic Rayleigh-Taylor Instability of a Decelerating Shell and its Implications for Gamma Ray Bursts

Authors: Amir Levinson (TAU)

Modeling the light curve of the transient SCP06F6

Authors: Emmanouil Chatzopoulos, J. Craig Wheeler, Jozsef Vinko

The influence of short term variations in AM CVn systems on LISA measurements

Authors: Alexander Stroeer, Gijs Nelemans

The impact of a strongly first-order phase transition on the abundance of thermal relics

Authors: Carroll Wainwright, Stefano Profumo

tipa -- 9/8/2009

The chemical composition of the Sun

Authors: Martin Asplund, Nicolas Grevesse, A. Jacques Sauval, Pat Scott

Multi-Wavelength Properties of the Type IIb SN 2008ax

Authors: P.W.A. Roming, T.A. Pritchard, P.J. Brown, S.T. Holland, S. Immler, C.J. Stockdale, K.W. Weiler, N. Panagia, S.D. Van Dyk, E.A. Hoversten, P.A. Milne, S.R. Oates, B. Russell, C. Vandrevala

Search for cosmic neutrino point sources with the 5-line ANTARES telescope

Authors: Antares Collaboration

A formalism for the construction of binary neutron stars with arbitrary circulation

Authors: Thomas W. Baumgarte, Stuart L. Shapiro

Bayesian reconstruction of gravitational wave burst signals from simulations of rotating stellar core collapse and bounce

Authors: Christian Röver, Marie-Anne Bizouard, Nelson Christensen, Harald Dimmelmeier, Ik Siong Heng, Renate Meyer

Status of the global electroweak fit of the Standard Model

Authors: Andreas Hoecker (CERN) for the Gfitter Group

tipa -- 9/7/2009

The size-star formation relation of massive galaxies at 1.5 < z < 2.5

Authors: S. Toft, M. Franx, P. G. van Dokkum, N. M. Forster-Schreiber, I. Labbe, S. Wuyts, D. Marchesini

Testing the Gamma-Ray Burst Pulse Start Conjecture

Authors: Jon Hakkila, Robert J. Nemiroff

Supercollapsars and their X-ray Bursts

Authors: S.S. Komissarov, M.V. Barkov

General physical properties of bright Fermi blazars

Authors: G. Ghisellini (1), F. Tavecchio (1), L. Foschini (1), G. Ghirlanda (1), L. Maraschi (1), A. Celotti (2) ((1) INAF-Brera Observ., (2) SISSA)

tipa -- 9/4/2009

Gamma-ray signatures of annihilation to charged leptons in dark matter substructure

Authors: Matthew D. Kistler, Jennifer M. Siegal-Gaskins (Ohio State University)

Discovery of a new Wolf-Rayet star and its ring nebula in Cygnus

Authors: V.V.Gvaramadze, S.Fabrika, W.-R.Hamann, O.Sholukhova, A.F.Valeev, V.P.Goranskij, A.M.Cherepashchuk, D.J.Bomans, L.M.Oskinova

tipa -- 9/3/2009

An Electromagnetic Signature of Galactic Black Hole Binaries That Enter Their Gravitational-Wave Induced Inspiral

Authors: Abraham Loeb (Harvard)

Seeing the Collision of a Supernova with its Companion Star

Authors: Daniel Kasen

X-ray Astronomy in the Laboratory with a Miniature Compact Object Produced by Laser-Driven Implosion

Authors: Shinsuke Fujioka, Hideaki Takabe, Norimasa Yamamoto, David Salzmann, Feilu Wang, Hiroaki Nishimura, Yutong Li, Quanli Dong, Shoujun Wang, Yi Zhang, Yong-Joo Rhee, Yong-Woo Lee, Jae-Min Han, Minoru Tanabe, Takashi Fujiwara, Yuto Nakabayashi, Gang Zhao, Jie Zhang, Kunioki Mima

The remnants of galaxy formation from a panoramic survey of the region around M31

Authors: Alan W. McConnachie, Michael J. Irwin, Rodrigo A. Ibata, John Dubinski, Lawrence M. Widrow, Nicolas F. Martin, Patrick Cote, Aaron L. Dotter, Julio F. Navarro, Annette M. N. Ferguson, Thomas H. Puzia, Geraint F. Lewis, Arif Babul, Pauline Barmby, Olivier Bienayme, Scott C. Chapman, Robert Cockcroft, Michelle L. M. Collins, Mark A. Fardal, William E. Harris, Avon Huxor, A. Dougal Mackey, Jorge Penarrubia, R. Michael Rich, Harvey B. Richer, Arnaud Siebert, Nial Tanvir, David Valls-Gabaud, Kimberly A. Venn

Radio continuum and near-infrared study of the MGRO J2019+37 region

Authors: J.M. Paredes, J.Marti, C.H. Ishwara-Chandra, J.R. Sanchez-Sutil, A.J. Munoz-Arjonilla, J. Moldon, M. Peracaula, P.L. Luque-Escamilla, V. Zabalza, V. Bosch-Ramon, P. Bordas, G.E. Romero, M. Ribo

tipa -- 9/2/2009

Omniscopes: Large Area Telescope Arrays with only N log N Computational Cost

Authors: Max Tegmark (MIT), Matias Zaldarriaga (IAS)

Magnetohydrodynamic Simulations of Gamma-Ray Burst Jets: Beyond the Progenitor Star

Authors: Alexander Tchekhovskoy (1), Ramesh Narayan (1), Jonathan C. McKinney (2) ((1) Harvard-CfA, (2) Department of Physics and Kavli Institute for Particle Astrophysics and Cosmology, Stanford University)

A Spatially Resolved Map of the Kinematics, Star-Formation and Stellar Mass Assembly in a Star-Forming Galaxy at z=4.9

Authors: Mark Swinbank (1), Tracy Webb (2), Johan Richard (1), Richard Bower (1) Richard Ellis (3), Garth Illingworth (4), Tucker Jones (3), Mariska Kriek (5), Ian Smail (1), Dan Stark (6), Pieter Van Dokkum (7) ((1) Durham, (2) McGill, (3) Caltech, (4) UCSC, (5) Princeton, (6) Cambridge, (7) Yale)

tipa -- 9/1/2009

First-year Sloan Digital Sky Survey-II (SDSS-II) Supernova Results: Hubble Diagram and Cosmological Parameters

Authors: Richard Kessler, Andrew Becker, David Cinabro, Jake Vanderplas, Joshua A. Frieman, John Marriner, Tamara M Davis, Benjamin Dilday, Jon Holtzman, Saurabh Jha, Hubert Lampeitl, Masao Sako, Mathew Smith, Chen Zheng, Robert C. Nichol, Bruce Bassett, Ralf Bender, Darren L. Depoy, Mamoru Doi, Ed Elson, Alex V. Filippenko, Ryan J. Foley, Peter M. Garnavich, Ulrich Hopp, Yutaka Ihara, William Ketzeback, W. Kollatschny, Kohki Konishi, Jennifer L. Marshall, Russet J. McMillan, Gajus Miknaitis, Tomoki Morokuma, Edvard M"ortsell, Kaike Pan, Jose Luis Prieto, Michael W. Richmond, Adam G. Riess, Roger Romani, Donald P. Schneider, Jesper Sollerman, Naohiro Takanashi, Kouichi Tokita, Kurt van der Heyden, J. C. Wheeler, Naoki Yasuda, Donald York

Production of 26Al, 44Ti, and 60Fe in Core-Collapse Supernovae: Sensitivity to the Rates of the Triple Alpha and 12C(a,g)16O Reactions

Authors: Clarisse Tur, Alexander Heger, Sam M. Austin

Radial Distribution of X-ray Point Sources near the Galactic Center

Authors: Jaesub Hong, Maureen van den Berg, Jonathan E. Grindlay, Silas Laycock

Nuclear Security Applications of Antineutrino Detectors: Current Capabilities and Future Prospects

Authors: A. Bernstein, G. Baldwin, B. Boyer, M. Goodman, J. Learned, J. Lund, D. Reyna, R. Svoboda

tipa -- 8/31/2009

A Maximum Stellar Surface Density in Dense Stellar Systems

Authors: Philip F. Hopkins (1), Norman Murray (2), Eliot Quataert (1), Todd A. Thompson (3) ((1) Berkeley, (2) CITA, (3) OSU)

Identification of the Early Fermi LAT Gamma-Ray Bright Objects with Extragalactic VLBI sources

Authors: Y. Y. Kovalev (MPIfR and ASC Lebedev)

Near-IR Search for Lensed Supernovae Behind Galaxy Clusters: I. Observations and transient detection efficiency

Authors: V. Stanishev, A. Goobar, K. Paech, R. Amanullah, T. Dahlén, J. Jönsson, J. P. Kneib, C. Lidman, M. Limousin, E. Mörtsell, S. Nobili, J. Richard, T. Riehm, M. von Strauss

Constraints on Extragalactic Point Source Flux from Diffuse Neutrino Limits

Authors: Andrea Silvestri, Steven W. Barwick

Relativistic Non-Hermitian Quantum Mechanics

Authors: Katherine Jones-Smith, Harsh Mathur

classic papers of the week -- 114

On the Nature of Pulsars. I. Theory

Ostriker, J. P.; Gunn, J. E.

Superstrings in the Early Universe

Robert H. Brandenberger, (Brown University, Providence, RI) , C. Vafa, (Lyman Laboratory of Physics, Harvard University, Cambridge, MA)

The New World-Picture of Modern Physics

Sir James Jeans, F.R.S., President of the British Association

tipa -- 8/28/2009

Imprint of galaxy clustering in the cosmic gamma-ray background

Authors: Shin'ichiro Ando, Vasiliki Pavlidou (Caltech)

Disks in the sky: A reassessment of the WMAP "cold spot"

Authors: Ray Zhang, Dragan Huterer (University of Michigan)

Hidden MeV-Scale Dark Matter in Neutrino Detectors

Authors: Jennifer Kile, Amarjit Soni

Current status of gravitational-wave observations

Authors: Stephen Fairhurst, Gianluca M Guidi, Patrice Hello, John T Whelan, Graham Woan

tipa -- 8/27/2009

Can X-ray emission powered by a spinning-down magnetar explain some GRB light curve features?

Authors: N. Lyons, P.T. O'Brien, B. Zhang, R. Willingale, E. Troja, R.L.C. Starling

Timing Observations of Rotating Radio Transients

Authors: M. A. McLaughlin, A. G. Lyne, E. F. Keane, M. Kramer, J. J. Miller, D. R. Lorimer, R. N. Manchester, F. Camilo, I. H. Stairs

Search for gravitational-wave bursts associated with gamma-ray bursts using data from LIGO Science Run 5 and Virgo Science Run 1

Authors: LIGO Scientific Collaboration, Virgo Collaboration

Experimental test of the Pauli Exclusion Principle

Authors: A.S. Barabash

Early Universe models from Noncommutative Geometry

Authors: Matilde Marcolli (Caltech), Elena Pierpaoli (USC)

tipa -- 8/26/2009

Binary compact object coalescence rates: The role of elliptical galaxies

Authors: R. O'Shaughnessy (1), V. Kalogera (2), K. Belczynski (3 and 4) ((1) Center for Gravitational Wave Physics, Penn State University, (2) Northwestern University, (3) Los Alamos National Laboratory, (4) Astronomical Observatory, University of Warsaw)

A Trigonometric Parallax of Sgr B2

Authors: M. J. Reid, K. M. Menten, X. W. Zheng, A. Brunthaler, Y. Xu

tipa -- 8/25/2009

Evidence for a Triaxial Milky Way Dark Matter Halo from the Sagittarius Stellar Tidal Stream

Authors: David R. Law, Steven R. Majewski, Kathryn V. Johnston

Synthetic Spectra from PIC Simulations of Relativistic Collisionless Shocks

Authors: Lorenzo Sironi, Anatoly Spitkovsky

Quasar Feedback from WMAP and SDSS Cross-Correlation

Authors: Suchetana Chatterjee (University of Pittsburgh), Shirley Ho (LBNL/Princeton), Jeffrey A. Newman (University of Pittsburgh), Arthur Kosowsky (University of Pittsburgh)

Three-Dimensional Simulations of Mixing Instabilities in Supernova Explosions

Authors: N.J. Hammer, H.-Th. Janka, E. Mueller (Max Planck Institute for Astrophysics, Garching)

Nuclear physics for geo-neutrino studies

Authors: Gianni Fiorentini, Aldo Ianni, George Korga, Marcello Lissia, Fabio Mantovani, Lino Miramonti, Lothar Oberauer, Michel Obolensky, Oleg Smirnov, Yury Suvorov

Reassessment of the NuTeV determination of the Weinberg angle

Authors: W. Bentz, I. C. Cloet, J. T. Londergan, A. W. Thomas

An Improved Standard Model Prediction Of BR(B -> tau nu) And Its Implications For New Physics

Authors: UTfit Collaboration: M. Bona, M. Ciuchini, E. Franco, V. Lubicz, G. Martinelli, F. Parodi, M. Pierini, C. Schiavi, L. Silvestrini, V. Sordini, A. Stocchi, C. Tarantino, V. Vagnoni

tipa -- 8/24/2009

Accurate Masses for Dispersion-supported Galaxies

Authors: Joe Wolf, Gregory D. Martinez, James S. Bullock, Manoj Kaplinghat, Marla Geha, Ricardo R. Munoz, Joshua D. Simon, Frank F. Avedo

Optical Spectroscopy of Bright Fermi LAT Blazars

Authors: Michael S. Shaw, Roger W. Romani, Stephen E. Healey, Garret Cotter, Peter F. Michelson, Anthony C. S. Readhead

Frequency Limits on Naked-Eye Optical Transients Lasting from Minutes to Years

Authors: Lior Shamir, Robert J. Nemiroff

classic papers of the week -- 113

The Ultrahigh-Energy Cosmic Ray Spectrum

Christopher T. Hill, (Fermi National Accelerator Laboratory), David N. Schramm (The University of Chicago and Fermi National Accelerator Laboratory)

The origin of dwarf galaxies, cold dark matter, and biased galaxy formation

Dekel, A. (Yale University and Weizmann Institute of Science); Silk, J. (University of California, Berkeley)

Super Collider Physics

E. Eichten (Fermi National Accelerator Laboratory), I. Hinchliffe (Lawrence Berkeley Laboratory), Kenneth D. Lane (The Ohio State University), C. Quigg (Fermi National Accelerator Laboratory)

Authors: F. Camilo (1), C.-Y. Ng (2), B. M. Gaensler (2), S. M. Ransom (3), S. Chatterjee (4), J. Reynolds (5), J. Sarkissian (5) ((1) Columbia U., (2) U. of Sydney, (3) NRAO, (4) Cornell U., (5) ATNF)

Extragalactic gamma-ray background radiation from dark matter annihilation