The efficient low-mass Seyfert MCG-05-23-016 (2008)
Beckmann, V., Courvoisier, T. J. -L., Gehrels, N., Lubinski, P., Malzac, J., ...
The Seyfert 1.9 galaxy MCG-05-23-016 has been shown to exhibit a complex X-ray spectrum. This source has moderate X-ray luminosity, hosts a comparably low-mass black hole, but accretes at a high...
Shrader, C. R., Reig, P., Kazanas, D.
Using archival RXTE data we derive the 2-16 keV Fourier-resolved spectra of the Atoll source 4U 1728-34 in a sequence of its timing states as its low QPO frequency spans the range between 6 and 94...
The INTEGRAL/SPI response and the Crab observations (2007)
Sizun, Patrick, Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
The INTEGRAL/SPI response and the Crab observations (2007)
Sizun, Patrick, Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
GRO J1655-40: Early Stages of the 2005 Outburst (2006)
Shaposhnikov, N., Swank, J., Shrader, C. R., Rupen, M., Beckmann, V., Markwardt, C. B., ...
The black-hole X-ray binary transient GRO J1655-40 underwent an outburst beginning in early 2005. We present the results of our multi-wavelength observational campaign to study the early outburst...
The Hard X-ray 20-40 keV AGN Luminosity Function (2006)
Beckmann, V., Soldi, S., Shrader, C. R., Gehrels, N., Produit, N.
We have compiled a complete extragalactic sample based on 25,000 deg^2 to a limiting flux of 3E-11 ergs/cm**2/sec (7,000 deg^2 to a flux limit of 1E-11 ergs/cm**2/sec) in the 20 - 40 keV band with...
Fourier resolved spectroscopy of 4U 1543-47 during the 2002 outburst (2006)
Reig, P., Papadakis, I. E., Shrader, C. R., Kazanas, D.
We have obtained Fourier-resolved spectra of the black-hole binary 4U 1543-47 in the canonical states (high/soft, very high, intermediate and low/hard) observed in this source during the decay of an...
Weidenspointner, G., Shrader, C. R., Knoedlseder, J., Jean, P., Lonjou, V., Guessoum, N., ...
We present a measurement of the sky distribution of positronium (Ps) annihilation continuum emission obtained with the SPI spectrometer on board ESA's INTEGRAL observatory. The only sky region from...
Results from the First INTEGRAL AGN Catalogue (2005)
Beckmann, V., Soldi, S., Shrader, C. R., Gehrels, N.
We present results based on the first INTEGRAL AGN catalogue. The catalogue includes 42 AGN, of which 10 are Seyfert 1, 17 are Seyfert 2, and 9 are intermediate Seyfert 1.5. The fraction of blazars...
The 2005 outburst of GRO J1655-40: spectral evolution of the rise, as observed by Swift (2005)
Brocksopp, C., McGowan, K. E., Krimm, H., Godet, O., Roming, P., Mason, K. O., ...
We present Swift observations of the black hole X-ray transient, GRO J1655-40, during the recent outburst. With its multiwavelength capabilities and flexible scheduling, Swift is extremely...
The First INTEGRAL AGN Catalog (2005)
Beckmann, V., Gehrels, N., Shrader, C. R., Soldi, S.
We present the first INTEGRAL AGN catalog, based on observations performed from launch of the mission in October 2002 until January 2004. The catalog includes 42 AGN, of which 10 are Seyfert 1, 17...
The High Energy Spectrum of NGC 4151 (2005)
Beckmann, V., Shrader, C. R., Gehrels, N., Soldi, S., Lubinski, P., Zdziarski, A. A., ...
We present the first INTEGRAL observations of the type 1.5 Seyfert galaxy NGC 4151. Combining several INTEGRAL observations performed during 2003, totaling about 400 ks of exposure time, allows us to...
XTE J1550-564: INTEGRAL Observations of a Failed Outburst (2005)
Sturner, S. J., Shrader, C. R.
The well known black-hole X-ray binary transient XTE J1550-564 underwent an outburst during the spring of 2003 which was substantially underluminous in comparison to previous periods of peak activity...
Broad-band spectra of Cygnus X-1 and correlations between spectral characteristics (2005)
Ibragimov, A., Poutanen, J., Gilfanov, M., Zdziarski, A. A., Shrader, C. R.
The INTEGRAL/SPI response and the Crab observations (2004)
Sizun, P., Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
The INTEGRAL/SPI response and the Crab observations (2004)
Sizun, P., Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
The INTEGRAL/SPI response and the Crab observations (2004)
Sizun, P., Shrader, C. R., Attie, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
Harmon, B. A., Wilson, C. A., Fishman, G. J., Connaughton, V., Henze, W., Paciesas, W. S., ...
The Burst and Transient Source Experiment (BATSE), aboard the Compton Gamma Ray Observatory (CGRO), provided a record of the low-energy gamma-ray sky (20-1000 keV) between 1991 April and 2000 May...
Chaty, S., Haswell, C.A., Malzac, J., Hynes, R.I., Shrader, C.R., Cui, W.
We report multiwavelength observations of the soft X-ray transient XTE J1118+480, which we observed with UKIRT, Hubble Space Telescope (HST), RXTE, Extreme Ultraviolet Explorer (EUVE) and many other...
Hynes, R.I., Haswell, C.A., Cui, W., Shrader, C.R., O'Brien, K., Chaty, S., ...
The transient black-hole binary XTE J1118+480 exhibited dramatic rapid variability at all wavelengths which were suitably observed during its 2000 April–July outburst. We examine time-resolved...
Chaty, S., Haswell, C. A., Malzac, J., Hynes, R. I., Shrader, C. R., Cui, W.
We report multiwavelength observations of the soft X-ray transient (SXT) XTE J1118+480, which we observed with UKIRT, HST, RXTE, EUVE and many other instruments and facilities. Adding radio (Ryle...
Von Kienlin, A., Beckmann, V., Covino, S., Goetz, D., Lichti, G. G., Malesani, D., ...
GRB030320 is the 5th Gamma-ray burst (GRB) detected by INTEGRAL in the field of view (FoV). It is so far the GRB with the largest off-axis angle with respect to the INTEGRAL pointing direction, near...
Park, S. Q., Miller, J. M., McClintock, J. E., Remillard, R. A., Orosz, J. A., Shrader, C. R., ...
We present an X-ray spectral and timing analysis of 4U 1543-47 during its 2002 outburst based on 49 pointed observations obtained using the Rossi X-ray Timing Explorer (RXTE). The outburst reached a...
Hynes, R. I., Haswell, C. A., Cui, W., Shrader, C. R., O'Brien, K., Chaty, S., ...
The transient black hole binary XTE J1118+480 exhibited dramatic rapid variability at all wavelengths which were suitably observed during its 2000 April-July outburst. We examine time-resolved X-ray,...
Chaty, S., Haswell, C. A., Malzac, J., Hynes, R. I., Shrader, C. R., Cui, W.
We report multiwavelength observations of the soft X-ray transient XTE J1118 + 480, which we observed with UKIRT, Hubble Space Telescope (HST), RXTE, Extreme Ultraviolet Explorer (EUVE) and many...
Hynes, R. I., Haswell, C. A., Cui, W., Shrader, C. R., O'Brien, K., Chaty, S., ...
The transient black-hole binary XTE J1118 + 480 exhibited dramatic rapid variability at all wavelengths which were suitably observed during its 2000 April-July outburst. We examine time-resolved...
Monte Carlo simulations and generation of the SPI response (2003)
Sturner, S. J., Shrader, C. R., Weidenspointner, G., Teegarden, B. J., Attié, D., Cordier, B., ...
The evolving accretion disc in the black hole X-ray transient XTE J1859+226 (2002)
Hynes, R.I., Haswell, C.A., Chaty, S., Shrader, C.R., Cui, W.
We present HST, RXTE, and UKIRT observations of the broad-band spectra of the black hole X-ray transient XTE J1859+226 during the decline from its 1999–2000 outburst. Our UV spectra define the...
X-ray/UV correlations in XTE J1118+480: disc, jet, or something else? (2002)
Hynes, R.I., Haswell, C.A., Chaty, S., Cui, W., Shrader, C.R., Brien, K. O', ...
The Evolving Accretion Disc in the Black Hole X-ray Transient XTE J1859+226 (2001)
Hynes, R. I., Haswell, C. A., Chaty, S., Shrader, C. R., Cui, W.
We present HST, RXTE, and UKIRT observations of the broad band spectra of the black hole X-ray transient XTE J1859+226 during the decline from its 1999-2000 outburst. Our UV spectra define the 2175A...
Chaty, S., Haswell, C.A., Hynes, R.I., Shrader, C.R., Cui, W., Mauche, C.W., ...
We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE...
Chaty, S., Haswell, C. A., Hynes, R. I., Shrader, C. R., Cui, W.
We report multiwavelength observations of the two soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST, RXTE and UKIRT. The two sources exhibited very different...
Complete and simultaneous spectral observations of the black hole X-Ray nova XTE J1118+480 (2001)
McClintock, J.E., Haswell, C.A., Garcia, M.R., Drake, J.J., Hynes, R.I., Marshall, H.L., ...
The X-ray nova XTE J1118+480 suffers minimal extinction (b = 62) and therefore represents an outstanding opportunity for multiwavelength studies. Hynes et al. conducted the first such study, which...
Complete and Simultaneous Spectral Observations of the Black-Hole X-ray Nova XTE J1118+480 (2001)
McClintock, J. E., Haswell, C. A., Garcia, M. R., Drake, J. J., Hynes, R. I., Marshall, H. L., ...
The X-ray nova XTE J1118+480 suffers minimal extinction (b = 62 degrees) and therefore represents an outstanding opportunity for multiwavelength studies. Hynes et al. (2000) conducted the first such...
Chaty, S., Haswell, C. A., Hynes, R. I., Shrader, C. R., Cui, W., Mauche, C. W., ...
We report here on multiwavelength observations of the two new soft X-ray transients (SXTs) XTE J1859+226 and XTE J1118+480, which we observed with HST/RXTE/UKIRT. For XTE J1118+480 we also used EUVE...
Recent Hubble Space Telescope results on X-ray novae (2001)
Hynes, R.I., Haswell, C.A., Chaty, S., Shrader, C.R., Cui, W., Mauche, C.W.
RXTE has recently discovered two newoptically bright black hole candidates (BHCs): XTE J1859+226 andXTE J1118+480. We observed both with HST/STIS, the firstoutburst observations of X-ray novae with...
The X-ray transient XTE J1118+480: Multiwavelength observations of a low-state mini-outburst (2000)
Hynes, R. I., Mauche, C. W., Haswell, C. A., Shrader, C. R., Cui, W., Chaty, S.
We present multiwavelength observations of the newly discovered X-ray transient XTE J1118+480 obtained in the rising phase of the 2000 April outburst. This source is located at unusually high...
Discovery of High-Frequency QPOs in Black Hole Candidate XTE J1859+226 (2000)
Cui, Wei, Shrader, C. R., Haswell, C. A., Hynes, R. I.
We report the discovery of quasi-periodic oscillations (QPOs) at roughly 187 Hz and 150 Hz in the X-ray intensity of X-ray nova XTE J1859+226. The source was observed during a recent outburst with...
The 1996 Outburst of GRO J1655-40: The Challenge of Interpreting the Multi-wavelength Spectra (1998)
Hynes, R. I., Haswell, C. A., Shrader, C. R., Chen, W., Horne, K., Harlaftis, E. T., ...
We report on the results of a campaign to observe the SXT GRO J1655-40 in outburst using HST, XTE and GRO and AAT. This outburst was qualitatively quite different to other SXT outbursts and to...
The 1996 Outburst of GRO J1655-40 (1997)
Hynes, R. I., Haswell, C. A., Fender, R. P., Shrader, C. R., Chen, W., Horne, K., ...
During 1996 the soft-X-ray transient and superluminal jet source GRO J1655-40 was observed in outburst with a multiwavelength campaign including HST, RXTE, CGRO and ground based facilities. Here we...
X-ray spectrum of the high polarization quasar PKS 1510-089 (1997)
Singh, K. P., Shrader, C. R., George, I. M.
We present results on the X-ray spectra of the radio-loud, high-polarization quasar, PKS 1510-089, based on new data obtained using ASCA, and from archival ROSAT data. The X-ray spectrum obtained by...
The Properties of X-Ray and Optical Light Curves of X-Ray Novae (1997)
Chen, Wan, Shrader, C. R., Livio, Mario
We have collected the available data from the literature and from public data archives covering the past two decades for the long-term X-ray and optical light curves of X-ray nova (XN) outbursts, and...