Pulsars, transients and relativistic astrophysics

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The Disappearance of the Red Supergiant Progenitor of Supernova 2008bk

(2010)

Authors:

Seppo Mattila, Stephen Smartt, Justyn Maund, Stefano Benetti, Mattias Ergon
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ULTRA-BRIGHT OPTICAL TRANSIENTS ARE LINKED WITH TYPE Ic SUPERNOVAE

The Astrophysical Journal Letters American Astronomical Society 724:1 (2010) l16-l21

Authors:

A Pastorello, SJ Smartt, MT Botticella, K Maguire, M Fraser, K Smith, R Kotak, L Magill, S Valenti, DR Young, S Gezari, F Bresolin, R Kudritzki, DA Howell, A Rest, N Metcalfe, S Mattila, E Kankare, KY Huang, Y Urata, WS Burgett, KC Chambers, T Dombeck, H Flewelling, T Grav, JN Heasley, KW Hodapp, N Kaiser, GA Luppino, RH Lupton, EA Magnier, DG Monet, JS Morgan, PM Onaka, PA Price, PH Rhoads, WA Siegmund, CW Stubbs, WE Sweeney, JL Tonry, RJ Wainscoat, MF Waterson, C Waters, CG Wynn-Williams
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On the nature of the "radio quiet" black hole binaries

(2010)

Authors:

Paolo Soleri, Rob Fender
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Blazars in the Fermi Era: The OVRO 40-m Telescope Monitoring Program

(2010)

Authors:

Joseph L Richards, Walter Max-Moerbeck, Vasiliki Pavlidou, Oliver G King, Timothy J Pearson, Anthony CS Readhead, Rodrigo Reeves, Martin C Shepherd, Matthew A Stevenson, Lawrence C Weintraub, Lars Fuhrmann, Emmanouil Angelakis, J Anton Zensus, Stephen E Healey, Roger W Romani, Michael S Shaw, Keith Grainge, Mark Birkinshaw, Katy Lancaster, Diana M Worrall, Gregory B Taylor, Garret Cotter, Ricardo Bustos
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A decelerating jet observed by the EVN and VLB A in the X-ray transient XTE J1752-223

Monthly Notices of the Royal Astronomical Society: Letters 409:1 (2010)

Authors:

J Yang, C Brocksopp, S Corbel, Z Paragi, T Tzioumis, RP Fender

Abstract:

The recently discovered Galactic X-ray transient XTE J1752-223 entered its first known outburst in 2010, emitting from the X-ray to the radio regimes. Its general X-ray properties were consistent with those of a black hole candidate in various spectral states, when ejection of jet components is expected. To verify this, we carried out very long baseline interferometry (VLBI) observations. The measurements were carried out with the European VLBI Network (EVN) and the Very Long Baseline Array (VLBA) at four epochs in 2010 February. The images at the first three epochs show a moving jet component that is significantly decelerated by the last epoch, when a new jet component appears that is likely to be associated with the receding jet side. The overall picture is consistent with an initially mildly relativistic jet, interacting with the interstellar medium or with swept-up material along the jet. The brightening of the receding ejecta at the final epoch can be well explained by initial Doppler deboosting of the emission in the decelerating jet. © 2010 The Authors. Journal compilation © 2010 RAS.
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