BLAZING TRAILS: MICROQUASARS AS HEAD-TAIL SOURCES AND THE SEEDING OF MAGNETIZED PLASMA INTO THE ISM

ASTROPHYSICAL JOURNAL 686:2 (2008) 1145-1154

Authors:

S Heinz, HJ Grimm, RA Sunyaev, RP Fender

Broadband X-ray spectra of GX 339-4 and the geometry of accreting black holes in the hard state

ASTROPHYSICAL JOURNAL 680:1 (2008) 593-601

Authors:

John A Tomsick, Emrah Kalemci, Philip Kaaret, Sera Markoff, Stephane Corbel, Simone Migliari, Rob Fender, Charles D Bailyn, Michelle M Buxton

The Arcminute Microkelvin Imager★

Monthly Notices of the Royal Astronomical Society Blackwell Publishing Ltd 391 (2008) 4

Authors:

JTL Zwart, RW Barker, P Biddulph, D Bly, RC Boysen, AR Brown, C Clementson, M Crofts, TL Culverhouse, J Czeres, RJ Dace, ML Davies, R D Alessandro, P Doherty, K Duggan, JA Ely, M Felvus, F Feroz, W Flynn, TMO Franzen, J Geisbüsch, R Génova-Santos, KJB Grainge, WF Grainger, D Hammett, RE Hills, MP Hobson, CM Holler, N Hurley-Walker, R Jilley, ME Jones, T Kaneko, R Kneissl, K Lancaster, AN Lasenby, PJ Marshall, F Newton, O Norris, I Northrop, DM Odell, G Petencin, JC Pober, GG Pooley, MW Pospieszalski, V Quy, C Rodríguez-Gonzálvez, RDE Saunders, AMM Scaife, J Schofield, PF Scott, C Shaw, TW Shimwell, H Smith, AC Taylor, DJ Titterington, M Velić, EM Waldram, S West, BA Wood, G Yassin

The extreme, red afterglow of GRB 060923A: distance or dust?

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 388:4 (2008) 1743-1750

Authors:

NR Tanvir, AJ Levan, E Rol, RLC Starling, J Gorosabel, RS Priddey, D Malesani, P Jakobsson, PT O'Brien, AO Jaunsen, J Hjorth, JPU Fynbo, A Melandri, A Gomboc, B Milvang-Jensen, AS Fruchter, M Jarvis, CAC Fernandes, T Wold

Characteristics of EGRET blazars in the VLBA Imaging and Polarimetry Survey (VIPS)

Astrophysical Journal 671:2 (2007) 1355-1364

Authors:

GB Taylor, SE Healey, JF Helmboldt, S Tremblay, CD Fassnacht, RC Walker, LO Sjouwerman, TJ Pearson, ACS Readhead, L Weintraub, N Gehrels, RW Romani, PF Michelson, RD Blandford, G Cotter

Abstract:

We examine the radio properties of EGRET-detected blazars observed as part of the VLBA Imaging and Polarimetry Survey (VIPS). VIPS has a flux limit roughly an order of magnitude below the MOJAVE survey and most other samples that have been used to study the properties of EGRET blazars. At lower flux levels, radio flux density does not directly correlate with gamma-ray flux density. We do find that the EGRET-detected blazars tend to have higher brightness temperatures, greater core fractions, and possibly larger than average jet opening angles. A weak correlation is also found with jet length and with polarization. All of the well-established trends can be explained by systematically larger Doppler factors in the gamma-ray-loud blazars, consistent with the measurements of higher apparent velocities found in monitoring programs carried out at radio frequencies above 10 GHz. © 2007. The American Astronomical Society. All rights reserved.