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)

SCP06F6: A carbon-rich extragalactic transient at redshift z~0.14

• Authors: B.T. Gaensicke, A.J. Levan, T.R. Marsh, P.J. Wheatley

First Measurement of $\nu_\mu$ and $\nu_e$ Events in an Off-Axis Horn-Focused Neutrino Beam

• Authors: P. Adamson, A. A. Aguilar-Arevalo, C. E. Anderson, A. O. Bazarko, M. Bishai, S. J. Brice, B. C. Brown, L. Bugel, J. Cao, B. C. Choudhary, L. Coney, J. M. Conrad, D. C. Cox, A. Curioni, Z. Djurcic, D. A. Finley, B. T. Fleming, R. Ford, H. R. Gallagher, F. G. Garcia, G. T. Garvey, C. Green, J. A. Green, D. Harris, T. L. Hart, E. Hawker, J. Hylen, R. Imlay, R. A. Johnson, G. Karagiorgi, P. Kasper, T. Katori, T. Kobilarcik, S. Kopp, I. Kourbanis, S. Koutsoliotas, E. M. Laird, S. K. Linden, J. M. Link, Y. Liu, Y. Liu, L. Loiacono, W. C. Louis, A. Marchionni, K. B. M. Mahn, W. Marsh, G. McGregor, M. D. Messier, W. Metcalf, P. D. Meyers, F. Mills, G. B. Mills, J. Monroe, C. D. Moore, J. K. Nelson, R. H. Nelson, V. T. Nguyen, P. Nienaber, J. A. Nowak, S. Ouedraogo, R. B. Patterson, Z. Pavlovic, D. Perevalov, et al. (33 additional authors not shown)

tipa -- 9/15/2008

The Galactic potential and the asymmetric distribution of hypervelocity stars

• Authors: Hagai B. Perets, Xufen Wu, HongSheng Zhao, Benoit Famaey, Gianfranco Gentile, Tal Alexander

Acceleration of Galactic Supershells by Lyman Alpha Radiation

• Authors: Mark Dijkstra, Abraham Loeb

classic papers of the week -- 82

Electrical Disturbances Apparently of Extraterrestrial Origin

• Jansky, K. G. (Bell Telephone Laboratories, Inc., New York City)

Processes Involving Charged Mesons

• C.M.G. Lattes, H. Muirhead, G.P.S. Occhialini, C.F. Powell (H. H. Wills Physical Laboratory, University of Bristol)

An SU(3) model for strong interaction symmetry and its breaking

• G. Zweig (CERN)

tipa -- 9/12/2008

An Upper Mass Limit on a Red Supergiant Progenitor for the Type II-Plateau Supernova SN 2006my

• Authors: Douglas C. Leonard, Avishay Gal-Yam, Derek B. Fox, P. B. Cameron, Erik M. Johansson, Adam L. Kraus, David Le Mignant, Marcos A. van Dam

tipa -- 9/11/2008

Discovery of an Unusual Optical Transient with the Hubble Space Telescope

• Authors: K. Barbary, K. S. Dawson, K. Tokita, G. Aldering, R. Amanullah, N. V. Connolly, M. Doi, L. Faccioli, V. Fadeyev, A. S. Fruchter, G. Goldhaber, A. Goobar, A. Gude, X. Huang, Y. Ihara, K. Konishi, M. Kowalski, C. Lidman, J. Meyers, T. Morokuma, P. Nugent, S. Perlmutter, D. Rubin, D. Schlegel, A. L. Spadafora, N. Suzuki, H. K. Swift, N. Takanashi, R. C. Thomas, N. Yasuda, for the Supernova Cosmology Project

A Blast Wave from the 1843 Eruption of Eta Carinae

• Authors: Nathan Smith

Commissioning Run of the CRESST-II Dark Matter Search

• Authors: G. Angloher, M. Bauer, I. Bavykina, A. Bento, A. Brown, C. Bucci, C.Ciemniak, C. Coppi, G. Deuter, F. von Feilitzsch, D. Hauff, S. Henry, P.Huff, J. Imber, S. Ingleby, C. Isaila, J. Jochum, M. Kiefer, M. Kimmerle, H. Kraus, J.-C. Lanfranchi, R. F. Lang, B. Majorovits, M. Malek, R. McGowan, V. B. Mikhailik, E. Pantic, F. Petricca, S. Pfister, W. Potzel, F. Proebst, W. Rau, S. Roth, K. Rottler, C. Sailer, K. Schaeffner, J. Schmaler, S.Scholl, W. Seidel, L. Stodolsky, A. J. B. Tolhurst, I. Usherov, W.Westphal

First measurement of the Head-Tail directional nuclear recoil signature at energies relevant to WIMP dark matter searches

• Authors: S. Burgos, E. Daw, J. Forbes, C. Ghag, M. Gold, C. Hagemann, V.A. Kudryavtsev, T.B. Lawson, D. Loomba, P. Majewski, D. Muna, A.StJ. Murphy, G.G. Nicklin, S.M. Paling, A. Petkov, S.J.S. Plank, M. Robinson, N. Sanghi, D.P. Snowden-Ifft, N.J.C. Spooner, J. Turk, E. Tziaferi

High Energy Positrons From Annihilating Dark Matter

• Authors: Ilias Cholis, Lisa Goodenough, Dan Hooper, Melanie Simet, Neal Weiner

tipa -- 9/10/2008

The evolution of the specific star formation rate of massive galaxies to z ~ 1.8 in the E-CDFS

• Authors: Maaike Damen, Ivo Labbe, Marijn Franx, Pieter G. van Dokkum, Edward N. Taylor, Eric J. Gawiser

Constraints on the dark matter clumping factor and halo profiles from the cosmic gamma-ray background

• Authors: Dominik R. G. Schleicher, Simon C. O. Glover, Robi Banerjee, Ralf S. Klessen

Search for Point Sources of High Energy Neutrinos with Final Data from AMANDA-II

• Authors: The IceCube Collaboration

tipa -- 9/9/2008

A Catalog of X-ray Point Sources from Two Megaseconds of Chandra Observations of the Galactic Center

• Authors: M. P. Muno, F. E. Bauer, F. K. Baganoff, R. M. Bandyopadhyay, G. C. Bower, W. N. Brandt, P. S. Broos, A. Cotera, S. S. Eikenberry, G. P. Garmire, S. D. Hyman, N. E. Kassim, C. C. Lang, T. J. W. Lazio, C. Law, J. C. Mauerhan, M. R. Morris, T. Nagata, S. Nishiyama, S. Park, S. V. Ramirez, S. R. Stolovy, R. Wijnands, Q. D. Wang, Z. Wang, F. Yusef-Zadeh

AGILE detection of delayed gamma-ray emission from GRB 080514B

• Authors: A. Giuliani, S. Mereghetti, F. Fornari, E. Del Monte, M. Feroci, M. Marisaldi, P. Esposito, F. Perotti, M. Tavani, A. Argan, G. Barbiellini, F. Boffelli, A. Bulgarelli, P. Caraveo, P. W. Cattaneo, A.W. Chen, E. Costa, F. D'Ammando, G. Di Cocco, I. Donnarumma, Y. Evangelista, M. Fiorini, F. Fuschino, M. Galli, F. Gianotti, C. Labanti, I. Lapshov, F. Lazzarotto, P. Lipari, F. Longo, A. Morselli, L. Pacciani, A. Pellizzoni, G. Piano, P. Picozza, M. Prest, G. Pucella, M. Rapisarda, A. Rappoldi, P. Soffitta, M. Trifoglio, A. Trois, E. Vallazza, S. Vercellone, D. Zanello, L. Salotti, S. Cutini, C. Pittori, B. Preger, P. Santolamazza, F. Verrecchia, N. Gehrels, K. Page, D. Burrows, A. Rossi, K. Hurley, I. Mitrofanov, W. Boynton

Polarization of the Crab pulsar and nebula as observed by the Integral/IBIS telescope

• Authors: M. Forot (AIME, Sap), Philippe Laurent (SAp, Apc), I A. Grenier (AIME, Sap), C. Gouiffes (AIME, Sap), F. Lebrun (SAp, Apc)

tipa -- 9/8/2008

Can proper motions of dark-matter subhalos be detected?

• Authors: Shin'ichiro Ando, Marc Kamionkowski, Samuel K. Lee (Caltech), Savvas M. Koushiappas (Brown Univ.)

A blueprint for detecting supersymmetric dark matter in the Galactic halo

• Authors: Volker Springel (1), Simon D.M. White (1), Carlos S. Frenk (2), Julio F. Navarro (3,4), Adrian Jenkins (2), Mark Vogelsberger (1), Jie Wang (1), Aaron Ludlow (3), Amina Helmi (5) ((1) MPA, (2) Durham, (3) UVic, (4) UMass, (5) Groningen)

Photon and Graviton Mass Limits

• Authors: Alfred Scharff Goldhaber, Michael Martin Nieto

classic papers of the week -- 81

Prompt gamma rays and X-rays from supernovae

• Colgate, S. A.

The Isolation of an Ion, A Precision Measurement of Its Charge, and the Correction of Stokes's Law

• Millikan, R. A. (Ryerson Laboratory, University of Chicago)

Preliminary Design of an Experimental World-Circling Spaceship

• Project RAND

tipa -- 9/5/2008

The Gravitational Wave Signature of Core-Collapse Supernovae

• Authors: Christian D. Ott (TAPIR, Caltech)

Cosmic rays from active galactic nuclei

• Authors: E.G.Berezhko (Yu.G. Shafer Institute of Cosmophysical Research and Aeronomy, Yakutsk, Russia)

High-energy electron observations by PPB-BETS flight in Antarctica

• Authors: S.Torii, T.Yamagami, T.Tamura, K.Yoshida, H.Kitamura, K.Anraku, J.Chang, M.Ejiri, I.Iijima, A.Kadokura, K.Kasahara, Y.Katayose, T.Kobayashi, Y.Komori, Y.Matsuzaka, K.Mizutani, H.Murakami, M.Namiki, J.Nishimura, S.Ohta, Y.Saito, M.Shibata, N.Tateyama, H.Yamagishi, T.Yamashita, T.Yuda

How long should an astronomical paper be to increase its Impact?

• Authors: Krzysztof Zbigniew Stanek

tipa -- 9/4/2008

A New Class of Luminous Transients and A First Census of Their Massive Stellar Progenitors

• Authors: Todd A. Thompson, Jose L. Prieto, K. Z. Stanek, Matthew D. Kistler, John F. Beacom, Christopher S. Kochanek (Ohio State University)

The Extragalactic Distance Scale without Cepheids

• Authors: Jeremy Mould, Shoko Sakai

HESS J0632+057 : A new gamma-ray binary?

• Authors: J. A. Hinton (1), J. L. Skilton (1), S. Funk (2), J. Brucker (3), F. A. Aharonian (4,5), G. Dubus (6), A. Fiasson (7), Y. Gallant (7), W. Hofmann (5), A. Marcowith (7), O. Reimer (2) ((1) School of Physics & Astronomy, University of Leeds, UK, (2) Kavli Institute for Particle Astrophysics and Cosmology, SLAC, USA, (3) Universität Erlangen-Nürnberg, Physikalisches Institut, Germany, (4) Dublin Institute for Advanced Studies, Ireland, (5) Max-Planck-Institut für Kernphysik, Heidelberg, Germany, (6) Laboratoire d'Astrophysique de Grenoble, INSU/CNRS, Université Joseph Fourier, France, (7) Laboratoire de Physique Théorique et Astroparticules, CNRS/IN2P3, Université Montpellier II, France)

The Chemical Abundances of Tycho G in Supernova Remnant 1572

• Authors: Jonay I. González Hernández, Pilar Ruiz-Lapuente, Alexei V. Filippenko, Ryan J. Foley, Avishay Gal-Yam, Joshua D. Simon

Primordial Nucleosynthesis: from precision cosmology to fundamental physics

• Authors: F. Iocco, G. Mangano, G. Miele, O. Pisanti, P.D. Serpico

tipa -- 9/3/2008

The death of massive stars - I. Observational constraints on the progenitors of type II-P supernovae

• Authors: S.J. Smartt (1), J.J. Eldridge (2), R.M. Crockett (1), J.R. Maund (3) ((1) Queen's University Belfast; (2) IoA, Cambridge; (3) Dark Cosmology Centre, Copenhagen)

Reopening the window on charged dark matter

• Authors: Leonid Chuzhoy, Edward W. Kolb

tipa -- 9/2/2008

The Concepts of "Age" and "Universality" in Cosmic Ray Showers

• Authors: Paolo Lipari

VLT detection of a red supergiant progenitor of the type IIP supernova 2008bk

• Authors: S. Mattila, S.J. Smartt, J.J. Eldridge, J.R. Maund, R.M. Crockett, I.J. Danziger

Constraints on core-collapse supernova progenitors from correlations with H-alpha emission

• Authors: J. P. Anderson, P. A. James

PAMELA and dark matter

• Authors: V. Barger, W.-Y. Keung, D. Marfatia, G. Shaughnessy

tipa -- 9/1/2008

Dark Bursts in the Swift Era: The Palomar 60 inch-Swift Early Optical Afterglow Catalog

• Authors: S. B. Cenko, J. Kelemen, F. A. Harrison, D. B. Fox, S. R. Kulkarni, M. M. Kasliwal, E. O. Ofek, A. Rau, A. Gal-Yam, D. A. Frail, D.-S. Moon

Equation-of-State Dependent Features in Shock-Oscillation Modulated Neutrino and Gravitational-Wave Signals from Supernovae

• Authors: A. Marek, H.-Th. Janka, E. Mueller

Changes in Dark Matter Properties After Freeze-Out

• Authors: Timothy Cohen, David E. Morrissey, Aaron Pierce

Testing the Dark Matter Interpretation of the DAMA/LIBRA Result with Super-Kamiokande

• Authors: Jonathan L. Feng, Jason Kumar, John Learned, Louis E. Strigari

tipa -- 8/29/2008

Using Spatial Distributions to Constrain Progenitors of Supernovae and Gamma Ray Bursts

• Authors: Cody Raskin, Evan Scannapieco, James Rhoads, Massimo Della Valle

A common mass scale for satellite galaxies of the Milky Way

• Authors: Louis E. Strigari, James S. Bullock, Manoj Kaplinghat, Joshua D. Simon, Marla Geha, Beth Willman, Matthew G. Walker

Formation of a Quasar Host Galaxy through a Wet Merger 1.4 Billion Years after the Big Bang

• Authors: Dominik A. Riechers (1,2,5), Fabian Walter (1), Christopher L. Carilli (3), Frank Bertoldi (4), Emmanuel Momjian (3) ((1) MPIA, Germany; (2) Caltech, USA; (3) NRAO, USA; (4) AIfA Bonn, Germany; (5) Hubble Fellow)

A Disk of Young Stars at the Galactic Center as Determined by Individual Stellar Orbits

• Authors: J. R. Lu, A. M. Ghez, S. D. Hornstein, M. R. Morris, E. E. Becklin, K. Matthews

Minimal Dark Matter predictions and the PAMELA positron excess

• Authors: Marco Cirelli, Alessandro Strumia

XAX: a multi-ton, multi-target detection system for dark matter, double beta decay and pp solar neutrinos

• Authors: K. Arisaka, H. Wang, P. F. Smith, D. Cline, A. Teymourian, E. Brown, W. Ooi, D. Aharoni, C. W. Lam, K. Lung, S. Davies, M. Price

tipa -- 8/28/2008

High-(Energy)-Lights -- The Very High Energy Gamma-Ray Sky

• Authors: D. Horns (University of Hamburg, Institute for Experimental Physics, Hamburg)

New Positron Spectral Features from Supersymmetric Dark Matter - a Way to Explain the PAMELA Data?

• Authors: Lars Bergstrom, Torsten Bringmann, Joakim Edsjo

tipa -- 8/27/2008

Suzaku Observation of HESS J1825-137: Discovery of Largely-Extended X-rays near from PSR J1826-1334

• Authors: H. Uchiyama, H. Matsumoto, T. G. Tsuru, K. Koyama, A. Bamba

The Hydrodynamics of Gamma-Ray Burst Remnants

• Authors: Enrico Ramirez-Ruiz, Andrew I. MacFadyen

Long-term AGILE monitoring of the puzzling gamma-ray source 3EG J1835+5918

• Authors: A.Bulgarelli, for the AGILE Collaboration

tipa -- 8/26/2008

Relic density of neutrinos with primordial asymmetries

• Authors: Sergio Pastor, Teguayco Pinto, Georg Raffelt

Blazar Studies with GLAST: Synchro-Compton Analysis of Flat Spectrum Radio Quasars

• Authors: Charles D. Dermer, Justin D. Finke, Hannah Krug, Markus Boettcher

Cosmic X-ray background and Earth albedo Spectra with Swift/BAT

• Authors: M. Ajello, J. Greiner, G. Sato, D. R. Willis, G. Kanbach, A. W. Strong, R. Diehl, G. Hasinger, N. Gehrels, C. B. Markwardt, J. Tueller

Correlations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts

• Authors: N. Gehrels, S. D. Barthelmy, D. N. Burrows, J. K. Cannizzo, G. Chincarini, E. Fenimore, C. Kouveliotou, P. O'Brien, D. M. Palmer, J. Racusin, P. W. A. Roming, T. Sakamoto, J. Tueller, R. A. M. J. Wijers, B. Zhang

Deducing the nature of dark matter from direct and indirect detection experiments in the absence of collider signatures of new physics

• Authors: Maria Beltran, Dan Hooper, Edward W. Kolb, Zosia C. Krusberg