Simultaneous X-ray/Radio Observations of Cir X-1

Sissa Medialab Srl (2008) 037

Authors:

Paolo Soleri, Valeriu M Tudose, Rob Fender, M van der Klis

Coupled radio and X-ray emission and evidence for discrete ejecta in the jets of SS 433

Astrophysical Journal 682:2 (2008) 1141-1151

Authors:

JCA Miller-Jones, S Migliari, RP Fender, TWJ Thompson, M Van Der Klis, M Méndez

Abstract:

We present five epochs of simultaneous radio (VLA) and X-ray (Chandra) observations of SS 433 to study the relation between the radio and X-ray emission in the arcsecond-scale jets of the source. We detected X-ray emission from the extended jets in only one of the five epochs of observation, indicating that the X-ray reheating mechanism is transient. The reheating does not correlate with the total flux in the core or in the extended radio jets. However, the radio emission in the X-ray reheating regions is enhanced when X-ray emission is present. Deep images of the jets in linear polarization show that outside of the core, the magnetic field in the jets is aligned parallel to the local velocity vector, strengthening the case for the jets to be composed of discrete bullets rather than being continuous flux tubes. We also observed anomalous regions of polarized emission well away from the kinematic trace, confirming the large-scale anisotropy of the magnetic field in the ambient medium surrounding the jets. © 2008. The American Astronomical Society. All rights reserved.

A decade of radio imaging the relativistic outflow in the peculiar X-ray binary Circinus X-1

(2008)

Authors:

V Tudose, RP Fender, AK Tzioumis, RE Spencer, M van der Klis

Core-collapse supernovae in low-metallicity environments and future all-sky transient surveys

(2008)

Authors:

DR Young, SJ Smartt, S Mattila, NR Tanvir, D Bersier, KC Chambers, N Kaiser, JL Tonry

The metamorphosis of Supernova SN2008D/XRF080109: a link between Supernovae and GRBs/Hypernovae

(2008)

Authors:

Paolo A Mazzali, Stefano Valenti, Massimo Della Valle, Guido Chincarini, Daniel N Sauer, Stefano Benetti, Elena Pian, Tsvi Piran, Valerio D'Elia, Nancy Elias-Rosa, Raffaella Margutti, Francesco Pasotti, L Angelo Antonelli, Filomena Bufano, Sergio Campana, Enrico Cappellaro, Stefano Covino, Paolo D'Avanzo, Fabrizio Fiore, Dino Fugazza, Roberto Gilmozzi, Deborah Hunter, Kate Maguire, Elisabetta Maiorano, Paola Marziani, Nicola Masetti, Felix Mirabel, Hripsime Navasardyan, Ken'ichi Nomoto, Eliana Palazzi, Andrea Pastorello, Nino Panagia, Leonardo J Pellizza, Re'em Sari, Stephen Smartt, Gianpiero Tagliaferri, Masaomi Tanaka, Stefan Taubenberger, Nozomu Tominaga, Carrie Trundle, Massimo Turatto