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The complete spectrum of the neutron star X-ray binary 4U0614+091
S. Migliari, J. A. Tomsick, J. C. A. Miller-Jones +6
We observed the neutron star (NS) ultra-compact X-ray binary 4U0614+091 quasi-simultaneously in the radio band (VLA), mid-IR/IR (Spitzer/MIPS and IRAC), near-IR/optical (SMARTS), o…
Suzaku observation of IGR J16318-4848
L. Barragán, J. Wilms, K. Pottschmidt +4
We report on the first Suzaku observation of IGR J16318-4848, the most extreme example of a new group of highly absorbed X-ray binaries that have recently been discovered by the In…
Truncation of the Inner Accretion Disk around a Black Hole at Low Luminosity
John A. Tomsick, Kazutaka Yamaoka, Stephane Corbel +3
Most black hole binaries show large changes in X-ray luminosity caused primarily by variations in mass accretion rate. An important question for understanding black hole accretion…
The nature of the X-ray binary IGR J19294+1816 from INTEGRAL, RXTE, and Swift observations
J. Rodriguez, J. A. Tomsick, A. Bodaghee +4
We report the results of a high-energy multi-instrumental campaign with INTEGRAL, RXTE, and Swift of the recently discovered INTEGRAL source IGR J19294+1816. The Swift/XRT data all…
Discovery of a highly energetic pulsar associated with IGR J14003-6326 in a young uncataloged Galactic supernova remnant G310.6-1.6
M. Renaud, V. Marandon, E. V. Gotthelf +6
We report the discovery of 31.18 ms pulsations from the INTEGRAL source IGR J14003-6326 using the Rossi X-ray Timing Explorer (RXTE). This pulsar is most likely associated with the…
The infrared/X-ray correlation of GX 339-4: Probing hard X-ray emission in accreting black holes
M. Coriat, S. Corbel, M. M. Buxton +4
GX 339-4 has been one of the key sources for unravelling the accretion ejection coupling in accreting stellar mass black holes. After a long period of quiescence between 1999 and 2…
Following the 2008 outburst decay of the black hole candidate H1743-322 in X-ray and radio
P. G. Jonker, J. Miller-Jones, J. Homan +10
In this Paper we report on radio (VLA and ATCA) and X-ray (RXTE, Chandra and Swift) observations of the outburst decay of the transient black hole candidate H1743-322 in early 2008…
Two Rapidly Variable Galactic X-ray Transients Observed with Chandra, XMM and Suzaku
C. O. Heinke, J. A. Tomsick, F. Yusef-Zadeh +1
We have identified two moderately bright, rapidly variable transients in new and archival X-ray data near the Galactic center. Both objects show strong, flaring variability on time…
Chandra Localizations and Spectra of INTEGRAL Sources in the Galactic Plane: The Cycle 9 Sample
John A. Tomsick, Sylvain Chaty, Jerome Rodriguez +2
We report on 0.3-10 keV X-ray observations by the Chandra X-ray Observatory of the fields of 22 sources that were discovered as hard X-ray (20-100 keV) sources by the INTEGRAL sate…
Infrared identification of IGR J09026-4812 as a Seyfert 1 galaxy
J. A. Zurita Heras, S. Chaty, J. A. Tomsick
IGR J09026-4812 was discovered by INTEGRAL in 2006 as a new hard X-ray source. Thereafter, an observation with Chandra pinpointed a single X-ray source within the ISGRI error circl…
Identifications of Five INTEGRAL Sources via Optical Spectroscopy
Suzanne C. Butler, John A. Tomsick, Sylvain Chaty +6
The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) is discovering hundreds of new hard X-ray sources, many of which remain unidentified. We report on optical spectrosco…
X-ray Timing of Stellar Mass Black Holes
John A. Tomsick, Ronald A. Remillard, Jeroen Homan +3
X-ray timing observations of accreting stellar mass black holes have shown that they can produce signals with such short time scales that we must be probing very close to the inner…
Optical Astrometry of Accreting Black Holes and Neutron Stars: Scientific Opportunities
John A. Tomsick, Andreas Quirrenbach, Shrinivas R. Kulkarni +2
The extreme conditions found near black holes and neutron stars provide a unique opportunity for testing physical theories. Observations of both types of compact objects can be use…
The early phase of a H1743-322 outburst observed by INTEGRAL, RXTE, Swift, and XMM/Newton
L. Prat, J. Rodriguez, M. Cadolle Bel +7
We investigate the early phase of the first state change during the 2008 September-November outburst of H1743-322, first detected by the INTEGRAL satellite. We analyse INTEGRAL, RX…