The Square Kilometre Array (SKA)

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The high energy emission of GRO J1655-40 as revealed with INTEGRAL spectroscopy of the 2005 outburst

(2007)

Authors:

MD Caballero-Garcia, JM Miller, E Kuulkers, M Diaz Trigo, J Homan, WHG Lewin, P Kretschmar, A Domingo, JM Mas-Hesse, R Wijnands, AC Fabian, RP Fender, M van der Klis
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The discovery of a massive supercluster at z=0.9 in the UKIDSS DXS

(2007)

Authors:

AM Swinbank, A Edge, I Smail, J Stott, M Bremer, Y Sato, C van Breukelen, M Jarvis, I Waddington, L Clewley, J Bergeron, G Cotter, S Dye, J Geach, E Gonzalez-Solares, P Hirst, R Ivison, S Rawlings, C Simpson, GP Smith, A Verma, T Yamada
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The variable radio-to-X-ray spectrum of the magnetar XTE J1810-197

ArXiv 0705.4095 (2007)

Authors:

F Camilo, SM Ransom, J Penalver, A Karastergiou, MH van Kerkwijk, M Durant, JP Halpern, J Reynolds, C Thum, DJ Helfand, N Zimmerman, I Cognard

Abstract:

We have observed the 5.54s anomalous X-ray pulsar XTE J1810-197 at radio, millimeter, and infrared (IR) wavelengths, with the aim of learning about its broad-band spectrum. At the IRAM 30m telescope, we have detected the magnetar at 88 and 144GHz, the highest radio-frequency emission ever seen from a pulsar. At 88GHz we detected numerous individual pulses, with typical widths ~2ms and peak flux densities up to 45Jy. Together with nearly contemporaneous observations with the Parkes, Nancay, and Green Bank telescopes, we find that in late 2006 July the spectral index of the pulsar was -0.5
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Evidence for a jet contribution to the optical/infrared light of neutron star X-ray binaries

(2007)

Authors:

DM Russell, RP Fender, PG Jonker
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Implications of the cosmic background imager polarization data

Astrophysical Journal 660:2 I (2007) 976-987

Authors:

JL Sievers, C Achermann, JR Bond, L Bronfman, R Bustos, CR Contaldi, C Dickinson, PG Ferreira, ME Jones, AM Lewis, BS Mason, J May, ST Myers, N Oyarce, S Padin, TJ Pearson, M Pospieszalski, ACS Readhead, R Reeves, AC Taylor, SN Torres

Abstract:

We present new measurements of the power spectra of the E mode of cosmic microwave background (CMB) polarization, the temperature T, the cross-correlation of E and T, and upper limits on the B mode from 2.5 yr of dedicated Cosmic Background Imager (CBI) observations. Both raw maps and optimal signal images in the (u, v)-plane and the sky plane show strong detections of the E mode (11.7 σ for the EE power spectrum overall) and no detection of the B mode. The power spectra are used to constrain parameters of the flat tilted adiabatic ACDM models: those determined from EE and TE bandpowers agree with those from TT, which is a powerful consistency check. There is little tolerance for shifting polarization peaks from the TT-forecast locations, as measured by the angular sound crossing scale 0 = 100/ls= 1.03 ± 0.02 from EE and TE; compare with 1.044 ± 0.005 with the TT data included. The scope for extra out-of-phase peaks from subdominant isocurvature modes is also curtailed. The EE and TE measurements of CBI, DASI, and BOOMERANG are mutually consistent and, taken together rather than singly, give enced leverage for these tests. © 2007. The American Astronomical Society. All rights reserved.
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