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Developing a second generation Laue lens prototype: high reflectivity crystals and accurate assembly
Nicolas M. Barrière, John A. Tomsick, Steven E. Boggs +2
Laue lenses are an emerging technology that will enhance gamma-ray telescope sensitivity by one to two orders of magnitude in selected energy bands of the \sim 100 keV to \sim 1.5…
Supergiant X-ray binaries observed by Suzaku
A. Bodaghee, J. A. Tomsick, J. Rodriguez +4
Suzaku observations are presented for the high-mass X-ray binaries IGR J16207-5129 and IGR J17391-3021 (=XTE J1739-302). For IGR J16207-5129, we provide the first X-ray broadband (…
IGR J17448-3232 point source: A blazar candidate viewed through the Galactic centre?
P. A. Curran, S. Chaty, J. A. Zurita Heras +2
The error region of the INTEGRAL source, IGR J17448-3232, contains an X-ray point source at the edge of a ~3' radius extended X-ray source. It has been suggested that the extended…
Overview of an Extensive Multi-wavelength Study of GX 339-4 during the 2010 Outburst
M. Cadolle Bel, J. Rodriguez, P. D'Avanzo +8
The microquasar GX 339-4 experienced a new outburst in 2010: it was observed simultaneously at various wavelengths from radio up to soft gamma-rays. We focused on observations that…
Clustering between high-mass X-ray binaries and OB associations in the Milky Way
Arash Bodaghee, John A. Tomsick, Jerome Rodriguez +1
We present the first direct measurement of the spatial cross-correlation function of high-mass X-ray binaries (HMXBs) and active OB star-forming complexes in the Milky Way. This re…
Unveiling Physical Processes in Type Ia Supernovae With a Laue Lens Telescope
Nicolas M. Barrière, John A Tomsick, Steven E. Boggs +2
We present in this paper a focusing gamma-ray telescope that has only one goal: addressing the true nature of Type Ia Supernovae (SNe Ia). This telescope is based on a Laue lens fo…
First simultaneous multi-wavelength observations of the black hole candidate IGR J17091-3624: ATCA, INTEGRAL, Swift, and RXTE views of the 2011 outburst
J. Rodriguez, S. Corbel, I. Caballero +5
We present the results of the first four (quasi-)simultaneous radio (ATCA), X-ray (Swift, RXTE), and Gamma-ray (INTEGRAL) observations of the black hole candidate IGR J17091-3624,…
X-ray Observations of Radio Transients without Optical Hosts
Steve Croft, John A. Tomsick, Geoffrey C. Bower
We present a 50 ks Chandra ACIS-I X-ray observation of the Bower et al. VLA archival field. The observations reach a limiting sensitivity of ~1E-4 counts/s, corresponding to a flux…
Discovery of the infrared counterpart of CXOU J174437.3-323222 in the field of IGR J17448-3232: a blazar candidate viewed through the Galactic centre?
P. A. Curran, S. Chaty, J. A. Zurita Heras +2
We present our near infrared ESO-NTT Ks band observations of the field of IGR J17448-3232 which show no extended emission consistent with the SNR but in which we identify a new cou…
X-ray follow up observations of new IGRs
Jerome Rodriguez, Arash Bodaghee, John A. Tomsick
Since the launch of INTEGRAL in 2002, about 300 new sources have been discovered. Understanding the nature of these objects is of prime importance for many aspects of astrophysics,…
The 2010 May Flaring Episode of Cygnus X-3 in Radio, X-Rays, and γ-Rays
Peter K. G. Williams, John A. Tomsick, Arash Bodaghee +7
In 2009, Cygnus X-3 (Cyg X-3) became the first microquasar to be detected in the GeV γ-ray regime, via the satellites Fermi and AGILE. The addition of this new band to the observat…
Discovery and evolution of the new black hole candidate Swift J1539.2-6227 during its 2008 outburst
H. A. Krimm, J. A. Tomsick, C. B. Markwardt +4
We report on the discovery by the Swift Gamma-Ray Burst Explorer of the black hole candidate Swift J1539.2-6227 and the subsequent course of an outburst beginning in November 2008…
Revealing the nature of high-mass X-ray binaries through multi-wavelength and statistical analyses
Arash Bodaghee, John A. Tomsick, Jerome Rodriguez
We summarize the results of our long-running campaign to help understand the nature of high-mass X-ray binaries (HMXBs), emphasizing recent Suzaku observations of IGR J16207-5129 a…