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Broad-band X-Ray Spectra of the Black Hole Candidate GRO J1655-40
John A. Tomsick, Philip Kaaret, Richard A. Kroeger +1
We present broad-band (2 keV to 2 MeV) X-ray spectra of GRO J1655-40, a luminous X-ray transient and occasional source of relativistic radio jets, obtained with RXTE and OSSE. In o…
A Multiwavelength Study of the Extreme AGN J2310-437
D. M. Worrall, M. Birkinshaw, R. A. Remillard +3
We present new X-ray, radio, and optical data for the unusual galaxy/cluster system J2310-437. Our results confirm the presence of an active nucleus, and suggest an interpretation…
Spectroscopy of Infrared Flares from the Microquasar GRS 1915+105
Stephen S. Eikenberry, Keith Matthews, Thomas W. Murphy +4
We present near-infrared medium-resolution () spectra of the microquasar GRS 1915+105 on 1997 August 13-15 UTC from the Hale 200-inch telescope. The spectra showed broa…
X-ray Observations of the Seyfert galaxy LB 1727 (1H 0419-577)
T. J. Turner, I. M. George, K. Nandra +5
We discuss the properties of the Seyfert 1.5 galaxy LB 1727, also known as 1H 0419-577, from X-ray observations obtained by ASCA and ROSAT along with optical observations from earl…
RXTE Observations of 0.1-300 Hz QPOs in the Microquasar GRO J1655-40
R. A. Remillard, E. H. Morgan, J. E. McClintock +2
We have investigated 52 RXTE pointed observations of GRO J1655-40 spanning the X-ray outburst that commenced on 1996 April 25 and lasted for 16 months. Our X-ray timing analyses re…
Monitoring the Galactic Microquasars with the Rossi X-ray Timing Explorer
R. A. Remillard, E. H. Morgan
The Galactic microquasars GRS1915+105 and GRO J1655-40 were targets for dedicated monitoring programs with RXTE throughout 1996 and 1997. We review recent results with particular a…
ASCA Observation of the polar RX J1802.1+1804
M. Ishida, J. Greiner, R. A. Remillard +1
We present X-ray data of RX J1802.1+1804 obtained by ASCA. Although it shows a clear orbital intensity modulation with an amplitude of nearly 100% below 0.5 keV in ROSAT data, the…
Bipolar Jets and Orbital Dynamics of the Supersoft X-Ray Source RX J0019.8+2156
C. M. Becker, R. A. Remillard, S. A. Rappaport +1
From 1994 to 1997 we monitored the optical spectrum of RXJ0019.8+2156. This supersoft X-ray source is one of only two accreting white dwarfs in the Galaxy thought to be burning hyd…
The X-ray stream-eclipsing polar RX J1802.1+1804
J. Greiner, R. A. Remillard, C. Motch
We present X-ray and optical data of the newly discovered AM Her variable RX J1802.1+1804 = V884 Her. This X-ray source was observed in the ROSAT All-Sky-Survey in September 1990 a…
RXTE/ASM Observations of PSR B1259-63
V. M. Kaspi, R. A. Remillard
RXTE/ASM observations of PSR B1259-63 near the 1997 periastron passage find no emission brighter than appximately 10 times that detected by ASCA during the 1994 periastron encounte…