The Square Kilometre Array (SKA)

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HARP/ACSIS: a submillimetre spectral imaging system on the James Clerk Maxwell Telescope

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 399:2 (2009) 1026-1043

Authors:

JV Buckle, RE Hills, H Smith, WRF Dent, G Bell, EI Curtis, R Dace, H Gibson, SF Graves, J Leech, JS Richer, R Williamson, S Withington, G Yassin, R Bennett, P Hastings, I Laidlaw, JF Lightfoot, T Burgess, PE Dewdney, G Hovey, AG Willis, R Redman, B Wooff, DS Berry, B Cavanagh, GR Davis, J Dempsey, P Friberg, T Jenness, R Kackley, NP Rees, R Tilanus, C Walther, W Zwart, TM Klapwijk, M Kroug, T Zijlstra
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Population synthesis studies of isolated neutron stars with magnetic field decay

(2009)

Authors:

SB Popov, JA Pons, JA Miralles, PA Boldin, B Posselt
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GAMA: towards a physical understanding of galaxy formation

Astronomy and Geophysics 50 (2009) 5

Authors:

SP Driver, P Norberg, IK Baldry, SP Bamford, AM Hopkins, J Liske, J Loveday, JA Peacock, DT Hill, LS Kelvin, ASG Robotham, NJG Cross, HR Parkinson, M Prescott, CJ Conselice, L Dunne, S Brough, H Jones, RG Sharp, E van Kampen, S Oliver, IG Roseboom, J Bland-Hawthorn, SM Croom, S Ellis, E Cameron, S Cole, CS Frenk, WJ Couch, AW Graham, R Proctor, R De Propris, IF Doyle, EM Edmondson, RC Nichol, D Thomas, SA Eales, MJ Jarvis, K Kuijken, O Lahav, BF Madore, M Seibert, MJ Meyer, L Staveley-Smith, S Phillipps, CC Popescu, AE Sansom, WJ Sutherland, RJ Tuffs, SJ Warren
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Refined orbital solution and quiescent variability in the black hole transient GS 1354-64 (= BW Cir)

Astrophysical Journal, Supplement Series 181:1 (2009) 238-243

Authors:

J Casares, JA Orosz, C Zurita, T Shahbaz, JM Corral-Santana, JE Mcclintock, MR Garcia, IG Martínez-Pais, PA Charles, RP Fender, RA Remillard

Abstract:

In Casares et al. we presented the first radial velocity curve of the companion star to BW Cir which demonstrates the presence of a black hole in this historical X-ray transient. But these data were affected by aliasing and two possible periods at 2.5445 days and 2.5635 days were equally possible. Here we present new spectroscopic data that enable us to break the 1-year aliasing and confirm 2.5445 days as the correct orbital period. We also present R-band photometry over 14 years, which reveals the presence of important flaring activity dominating the light curves. © 2009. The American Astronomical Society. All rights reserved.
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Multiwavelength study of Cygnus A III. Evidence for relic lobe plasma

ArXiv 0909.1073 (2009)

Authors:

KC Steenbrugge, I Heywood, KM Blundell

Abstract:

We study the particle energy distribution in the cocoon surrounding Cygnus A, using radio images between 151 MHz and 15 GHz and a 200 ks Chandra ACIS-I image. We show that the excess low frequency emission in the the lobe further from Earth cannot be explained by absorption or excess adiabatic expansion of the lobe or a combination of both. We show that this excess emission is consistent with emission from a relic counterlobe and a relic counterjet that are being re-energized by compression from the current lobe. We detect hints of a relic hotspot at the end of the relic X-ray jet in the more distant lobe. We do not detect relic emission in the lobe nearer to Earth as expected from light travel-time effects assuming intrinsic symmetry. We determine that the duration of the previous jet activity phase was slightly less than that of the current jet-active phase. Further, we explain some features observed at 5 and 15 GHz as due to the presence of a relic jet.
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