Pulsars, transients and relativistic astrophysics

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DISPLAYING THE HETEROGENEITY OF THE SN 2002cx-LIKE SUBCLASS OF TYPE Ia SUPERNOVAE WITH OBSERVATIONS OF THE Pan-STARRS-1 DISCOVERED SN 2009ku**This Letter includes data gathered with the 6.5 m Magellan Telescopes located at the Las Campanas Observatory, Chile; the Subaru Telescope, which is operated by the National Astronomical Observatory of Japan; the Nordic Optical Telescope, operated by Denmark, Finland, Iceland, Norway, and Sweden; the Liverpool Telescope operated by the Liverpool John Moores University with financial support from the UK Science and Technology Facilities Council on the island of La Palma in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias; and the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the National Science Foundation.

The Astrophysical Journal Letters American Astronomical Society 731:1 (2011) l11

Authors:

G Narayan, RJ Foley, E Berger, MT Botticella, R Chornock, ME Huber, A Rest, D Scolnic, S Smartt, S Valenti, AM Soderberg, WS Burgett, KC Chambers, HA Flewelling, G Gates, T Grav, N Kaiser, RP Kirshner, EA Magnier, JS Morgan, PA Price, AG Riess, CW Stubbs, WE Sweeney, JL Tonry, RJ Wainscoat, C Waters, WM Wood-Vasey

Observing pulsars and fast transients with LOFAR

(2011)

Authors:

BW Stappers, JWT Hessels, A Alexov, K Anderson, T Coenen, T Hassall, A Karastergiou, VI Kondratiev, M Kramer, J van Leeuwen, JD Mol, A Noutsos, JW Romein, P Weltevrede, R Fender, RAMJ Wijers, L B盲hren, ME Bell, J Broderick, EJ Daw, VS Dhillon, J Eisl枚ffel, H Falcke, J Griessmeier, C Law, S Markoff, JCA Miller-Jones, B Scheers, H Spreeuw, J Swinbank, S ter Veen, MW Wise, O Wucknitz, P Zarka, J Anderson, A Asgekar, IM Avruch, R Beck, P Bennema, MJ Bentum, P Best, J Bregman, M Brentjens, RH van de Brink, PC Broekema, WN Brouw, M Br眉ggen, AG de Bruyn, HR Butcher, B Ciardi, J Conway, R-J Dettmar, A van Duin, J van Enst, M Garrett, M Gerbers, T Grit, A Gunst, MP van Haarlem, JP Hamaker, G Heald, M Hoeft, H Holties, A Horneffer, LVE Koopmans, G Kuper, M Loose, P Maat, D McKay-Bukowski, JP McKean, G Miley, R Morganti, R Nijboer, JE Noordam, M Norden, H Olofsson, M Pandey-Pommier, A Polatidis, W Reich, H R枚ttgering, A Schoenmakers, J Sluman, O Smirnov, M Steinmetz, CGM Sterks, M Tagger, Y Tang, R Vermeulen, N Vermaas, C Vogt, M de Vos, SJ Wijnholds, S Yatawatta, A Zensus

Rapid variations of polarization in low-mass X-ray binaries

(2011)

Authors:

David M Russell, Piergiorgio Casella, Rob Fender, Paolo Soleri, Magaretha L Pretorius, Fraser Lewis, Michiel van der Klis

Probing the history of SS433's jet kinematics via Decade-resolution radio observations of W50

ArXiv 1103.5658 (2011)

Authors:

Paul T Goodall, Katherine M Blundell, S Jocelyn Bell Burnell

Abstract:

We present the results of a kinematical study of the W50 nebula using high resolution radio observations from the Very Large Array (VLA) spanning a 12-year period, sampled in 1984, 1993 and 1996. We conduct a careful analysis of the proper motions of the radio filaments across the W50 nebula at each epoch, and detect no significant motion for them during this period. The apparent lack of movement in the radio filaments mandates either (i) a high degree of deceleration of SS433's jet ejecta in the W50 nebula, or (ii) that the lobes of W50 formed a long time ago in SS433's history, during a jet outburst with appreciably different characteristics to the well-known precessing jet state observed in SS433 at the present day. We discuss the possible scenarios which could explain this result, with relevance to the nature of SS433's current jet activity.

Probing the history of SS433's jet kinematics via Decade-resolution radio observations of W50

(2011)

Authors:

Paul T Goodall, Katherine M Blundell, S Jocelyn Bell Burnell