214 citations · 1.3k across the 14 of their papers we have counts for
14 papers
Testing slim-disk models on the thermal spectra of LMC X-3
Odele Straub, Michal Bursa, Aleksander Sadowski +6
Slim-disk models describe accretion flows at high luminosities, while reducing to the standard thin disk form in the low luminosity limit. We have developed a new spectral model, s…
The Physics of Disk Winds, Jets,and X-ray Variability in GRS 1915+105
Joseph Neilsen, Julia C. Lee, Ron Remillard
We present new insights about accretion and ejection physics based on joint RXTE/Chandra HETGS studies of rapid X-ray variability in GRS 1915+105. For the first time, with fast pha…
GRS 1915+105 in "Soft State": Nature of Accretion Disk Wind and Origin of X-Ray Emission
Yoshihiro Ueda, Kazutaka Yamaoka, Ronald Remillard
We present the results from simultaneous Chandra HETGS and RXTE observations of the microquasar GRS 1915+105 in its quasi-stable "soft state" (or State A) performed on 2007 August…
Discovery of a Very Bright, Nearby Gravitational Microlensing Event
B. Scott Gaudi, Joseph Patterson, David S. Spiegel +18
We report the serendipitous detection of a very bright, very nearby microlensing event. In late October 2006, an otherwise unremarkable A0 star at a distance ~1 kpc (GSC 3656-1328)…
The Chandra HETGS and RXTE view of GRS 1915+105
J. C. Lee, C. S. Reynolds, R. Remillard +3
The Chandra AO1 HETGS observation of the micro-quasar GRS 1915+105 in the low hard state reveals (1) neutral K absorption edges from Fe, Si, Mg, and S in cold gas, and (2) highly i…
Variations of the TeV energy spectrum at different flux levels of Mkn 421 observed with the HEGRA system of Cherenkov telescopes
HEGRA Collaboration, F. Aharonian
The nearby BL Lacertae (BL Lac) object Markarian~421 (Mkn~421) at a red shift z=0.031 was observed to undergo strong TeV Gamma-ray outbursts in the observational periods from Decem…
Long Term Variability of Cyg X-1 I. X-ray spectral-temporal correlations in the hard state
K. Pottschmidt, J. Wilms, M. A. Nowak +6
We present the long term evolution of the timing properties of the black hole candidate Cygnus X-1 in the 0.002-128 Hz frequency range as monitored from 1998 to 2001 with the RXTE.…
Resolving the Composite Fe K-alpha Emission Line in the Galactic Black Hole Cygnus X-1 with Chandra
J. M. Miller, A. C. Fabian, R. Wijnands +8
We observed the Galactic black hole Cygnus X-1 with the Chandra High Energy Transmission Grating Spectrometer for 30 kiloseconds on 4 January, 2001. The source was in an intermedia…
High resolution Chandra HETG and RXTE observations of GRS 1915+105 : A hot disk atmosphere & cold gas enriched in Iron and Silicon
J. C. Lee, C. S. Reynolds, N. S. Schulz +3
The time-averaged 30 ks Chandra HETGS observation of the micro-quasar GRS 1915+105 in the low hard state reveals for the first time in this source neutral K absorption edges from F…
A measurement of the broad-band spectrum of XTE J1118+480 with BeppoSAX and its astrophysical implications
F. Frontera, A. A. Zdziarski, L. Amati +12
We report on results of a target of opportunity observation of the X-ray transient XTE J1118+480 performed on 2000 April 14-15 with the Narrow Field Instruments (0.1-200 keV) of th…
Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk421 in 1998
T. Takahashi, J. Kataoka, G. Madejski +20
We conducted a multi-frequency campaign for the TeV blazar Mrk~421 in 1998 April. The campaign started from a pronounced high amplitude flare recorded by SAX and Whipple; ASCA obse…
Observation of Cen A by the Rossi X-ray Timing Explorer
R. E. Rothschild, D. L. Band, P. R. Blanco +13
The Rossi X-ray Timing Explorer made a short (10 ks) observation of the radio galaxy Centaurus A on 14 August 1996. Analysis of the combined 2.5-240 keV spectrum has revealed a hea…
RXTE Spectroscopy of GRS 1915+105
J. Greiner, E. Morgan, R. Remillard
The galactic superluminal motion source GRS 1915+105 has been extensively observed with the RXTE satellite over the last two years. More than 250 RXTE pointings have been performed…
X-ray Transients Observed with the RXTE All Sky Monitor 1996-1997
R. A. Remillard
Highlights from the RXTE All Sky Monitor (ASM) during 1996 and 1997 are reviewed with particular attention to X-ray transients. The ASM has detected 117 sources. These include 12 r…