Publications (114)
Luminosity-dependent changes of the cyclotron line energy and spectral hardness in Cep X-4
V. Vybornov, D. Klochkov, M. Gornostaev +5
Discovery of a flux-related change of the cyclotron line energy in Her X-1
R. Staubert, N. I. Shakura, K. Postnov +5
On the deep minimum state in the Seyfert galaxy MCG-6-30-15
C. S. Reynolds, J. Wilms, M. C. Begelman +2
ROSAT Observations of BL Lacertae Objects
G. Lamer, H. Brunner, R. Staubert
RXTE Studies of Cyclotron Lines in Accreting Pulsars
W. A. Heindl, W. Coburn, D. E. Gruber +7
Probing stellar winds and accretion physics in high-mass X-ray binaries and ultra-luminous X-ray sources with LOFT
M. Orlandini, V. Doroshenko, L. Zampieri +28
The XMM-Newton view of the Crab
M. G. F. Kirsch, G. Schoenherr, E. Kendziorra +7
Study of the cyclotron feature in MXB 0656-072
V. A. McBride, J. Wilms, M. J. Coe +7
GX 301-2 as seen by Integral
I. Kreykenbohm, K. Pottschmidt, P. Kretschmar +9
Variable precession of the neutron star in Her X-1
R. Staubert, D. Klochkov, K. Postnov +3
Outburst of GX 304-1 monitored with INTEGRAL: positive correlation between the cyclotron line energy and flux
D. Klochkov, V. Doroshenko, A. Santangelo +10
OSSE Observations of the Radio Quiet Quasar PG 1416-129
R. Staubert, M. Maisack
Does the neutron star in Her X-1 really show free precession?
R. Staubert, D. Klochkov, D. Vasco +4
Discovery of a Cyclotron Resonant Scattering Feature in the RXTE Spectrum of 4U 0352+309 (X Per)
W. Coburn, W. A. Heindl, D. E. Gruber +4
CGRO, Radio and Optical Observations of the Quasar NRAO 140
M. Maisack, R. Staubert, K. Otterbein +3
Hard X-ray observations of the X-ray pulsar A0535+26
V. Borkous, A. S. Kaniovsky, R. A. Sunyaev +4
Short term X-ray rms variability of Cyg X-1
T. Gleissner, J. Wilms, K. Pottschmidt +3
The INTEGRAL Science Data Centre (ISDC)
T. J. -L. Courvoisier, R. Walter, V. Beckmann +17
Discovery of a Third Harmonic Cyclotron Resonance Scattering Feature in the X-ray Spectrum of 4U 0115+63
W. A. Heindl, W. Coburn, D. E. Gruber +5
The relative and absolute timing accuracy of the EPIC-pn camera on XMM-Newton, from X-ray pulsations of the Crab and other pulsars
A. Martin-Carrillo, M. G. F. Kirsch, I. Caballero +13
Formation of phase lags at the cyclotron energies in the pulse profiles of magnetized, accreting neutron stars
G. Schönherr, F. -W. Schwarm, S. Falkner +13
XMM-Newton Observations of the Be/X-ray transient A0538-66 in quiescence
P. Kretschmar, J. Wilms, R. Staubert +2
RXTE monitoring of Centaurus A
S. Benlloch, R. E. Rothschild, J. Wilms +3
2003--2005 INTEGRAL and XMM-Newton observations of 3C 273
M. Chernyakova, A. Neronov, T. J. -L. Courvoisier +9
Pulse phase and precession phase resolved spectroscopy of Her X-1: studying a representative Main-On with RXTE
D. Vasco, R. Staubert, D. Klochkov +3
The pre-outburst flare of the A 0535+26 August/September 2005 outburst
I. Caballero, A. Santangelo, P. Kretschmar +11
A fast X-ray timing capability on XEUS
D. Barret, G. Skinner, E. Kendziorra +6
Short-Term Radio-X-ray Correlations of Cygnus X-1
T. Gleissner, J. Wilms, G. G. Pooley +6
Spectral Formation in Accreting X-Ray Pulsars: Bimodal Variation of the Cyclotron Energy with Luminosity
P. A. Becker, D. Klochkov, G. Schonherr +7
Discovery of a Cyclotron Resonance Scattering Feature in the X-ray Spectrum of XTE J1946+274
W. A. Heindl, W. Coburn, D. E. Gruber +4
Properties of the X-ray pulsar GX 301-2 in hard X-rays
V. Borkus, A. Kaniovsky, R. Sunyaev +5
INTEGRAL observations of V0332+53 in outburst
I. Kreykenbohm, N. Mowlavi, N. Produit +9
Cygnus X-1 from RXTE: Monitoring the short term variability
K. Pottschmidt, J. Wilms, R. Staubert +3
Giant outburst of EXO 2030+375: pulse-phase resolved analysis of INTEGRAL data
D. Klochkov, A. Santangelo, R. Staubert +1
Quasi-Periodic Oscillation in Seyfert galaxies: Significance levels. The Case of Mrk 766
S. Benlloch, J. Wilms, R. Edelson +2
The Be/X-ray binary A0535+26 during its recent 2009/2010 outbursts
I. Caballero, K. Pottschmidt, A. Santangelo +20
Pulse Period History and Phase Resolved Spectra of 1A 0535+262
I. Caballero, P. Kretschmar, A. Santangelo +3
Pulse Phase Spectroscopy of A 0535+26 during its 1994 giant outburst observed with OSSE
M. Maisack, J. E. Grove, E. Kendziorra +3
Multiple Cyclotron Lines in the Spectrum of 4U 0115+63
W. A. Heindl, W. Coburn, D. E. Gruber +5
Evolution of spectral parameters during a pre-eclipse dip of Her X-1
B. Stelzer, J. Wilms, R. Staubert +2
RXTE Observations of LMC X-1 and LMC X-3
J. Wilms, M. A. Nowak, J. B. Dove +4
A model for cyclotron resonance scattering features
G. Schönherr, J. Wilms, P. Kretschmar +5
Vela X-1 as seen by RXTE
I. Kreykenbohm, P. Kretschmar, J. Wilms +5
Her X-1: the positive cyclotron line energy / luminosity correlation
D. Vasco, D. Klochkov, R. Staubert
Simultaneous observations of the quasar 3C 273 with INTEGRAL, XMM-Newton and RXTE
T. J. -L. Courvoisier, V. Beckmann, G. Bourban +15
Magnetic Fields of Accreting X-Ray Pulsars with the Rossi X-Ray Timing Explorer
W. Coburn, W. A. Heindl, R. E. Rothschild +5
The appearance of magnetospheric instability in flaring activity at the onset of X-ray outbursts in A0535+26
K. Postnov, R. Staubert, A. Santangelo +3
Cyclotron lines in highly magnetized neutron stars
R. Staubert, J. Trümper, E. Kendziorra +10
INTEGRAL broadband spectroscopy of Vela X-1
P. Kretschmar, R. Staubert, I. Kreykenbohm +11
Observation of the Anomalous X-Ray Pulsar 4U 0142+61
E. Goehler, J. Wilms, R. Staubert
Timing and Spectroscopy of Accreting X-ray Pulsars: the State of Cyclotron Line Studies
W. A. Heindl, R. E. Rothschild, W. Coburn +4
A 0535+26 in outburst: magnetospheric instabilities and accretion geometry
I. Caballero, U. Kraus, K. Postnov +4
Highly structured wind in Vela X-1
I. Kreykenbohm, J. Wilms, P. Kretschmar +6
Temporal Evolution of X-ray Lags in Cygnus X-1
K. Pottschmidt, J. Wilms, M. A. Nowak +3
Analyzing X-ray variability by State Space Models
M. König, J. Timmer, R. Staubert
Pulse-to-pulse variability of bright accreting pulsars
D. Klochkov, A. Santangelo, R. Staubert +1
The 1999 Hercules X-1 Anomalous Low State
W. Coburn, W. A. Heindl, J. Wilms +8
A Suzaku View of Cyclotron Line Sources and Candidates
K. Pottschmidt, S. Suchy, E. Rivers +20
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
A Her X-1 Turn-On: Using the pulse profile to probe the outer edge of an accretion disk
M. Kuster, J. Wilms, R. Staubert +5
Observational evidence for a changing tilt of the accretion disk with respect to the orbital plane in Her X-1 over its 35 day cycle
D. Klochkov, N. Shakura, K. Postnov +3
Is there a highly magnetized neutron star in GX 301-2?
V. Doroshenko, A. Santangelo, V. Suleimanov +4
Swift/BAT measurements of the cyclotron line energy decay in the accreting neutron star Her X-1: indication of an evolution of the magnetic field?
D. Klochkov, R. Staubert, K. Postnov +3
The 35-day cycle in Her X-1 as observational appearance of freely precessing neutron star and forcedly precessing accretion disk
N. A. Ketsaris, M. Kuster, K. A. Postnov +4
Finding a 24-day orbital period for the X-ray binary 1A 1118-616
R. Staubert, K. Pottschmidt, V. Doroshenko +4
INTEGRAL-RXTE observations of Cygnus X-1
K. Pottschmidt, J. Wilms, M. Chernyakova +11
GRO J1008-57: an (almost) predictable transient X-ray binary
M. Kühnel, S. Müller, I. Kreykenbohm +13
Pulse-amplitude-resolved spectroscopy of bright accreting pulsars: indication of two accretion regimes
D. Klochkov, R. Staubert, A. Santangelo +2
Long-term change in the cyclotron line energy in Hercules X-1
R. Staubert, D. Klochkov, J. Wilms +5
A 0535+26 in the August/September 2005 outburst observed by RXTE and INTEGRAL
I. Caballero, P. Kretschmar, A. Santangelo +14
The first broad-band X-ray images and spectra of the 30 Doradus region in the LMC
K. Dennerl, F. Haberl, B. Aschenbach +25
The near-synchronous polar V1432 Aql (RX J1940.1-1025): Accretion geometry and synchronization time scale
R. Staubert, S. Friedrich, K. Pottschmidt +5
Two ~35 day clocks in Her X-1: evidence for neutron star free precession
R. Staubert, D. Klochkov, K. Postnov +3
Disappearing Pulses in Vela X-1
P. Kretschmar, I. Kreykenbohm, J. Wilms +4
X-ray Timing Analysis of Six Pulsars Using ESA's XMM-Newton Observatory
A. Martin-Carrillo, M. Kirsch, E. Kendziorra +1
INTEGRAL observation of hard X-ray variability of the TeV binary LS5039 / RX J1826.2-1450
A. D. Hoffmann, D. Klochkov, A. Santangelo +4
Observation of V0332+53 over the 2004/2005 outburst with Integral
I. Kreykenbohm, N. Mowlavi, K. Pottschmidt +8
Inversion of the decay of the cyclotron line energy in Her X-1
R. Staubert, D. Klochkov, F. Fürst +3
A torque reversal of 4U 1907+09
S. Fritz, I. Kreykenbohm, J. Wilms +5
Analyzing short-term X-ray variability of Cygnus X-1 with Linear State Space Models
K. Pottschmidt, M. Koenig, J. Wilms +1
The XMM-Newton Survey in the Marano Field I. The X-ray data and optical follow-up
M. Krumpe, G. Lamer, A. D. Schwope +6
UV to X-ray Spectra of Radio-Quiet Quasars. Comparison With Accretion Disk Models
H. Brunner, C. Mueller, P. Friedrich +3
Monitoring the Short-Term Variability of Cyg X-1: Spectra and Timing
K. Pottschmidt, J. Wilms, R. Staubert +4
Quasi-periodic flares in EXO 2030+375 observed with INTEGRAL
D. Klochkov, C. Ferrigno, A. Santangelo +5
Probing the outer edge of an accretion disk: A Her X-1 turn-on observed with RXTE
M. Kuster, J. Wilms, R. Staubert +4
Confirmation of Two Cyclotron Lines in Vela X-1
I. Kreykenbohm, W. Coburn, J. Wilms +4
Long term variability of Cygnus X-1, III. Radio-X-ray correlations
T. Gleissner, J. Wilms, G. G. Pooley +7
Future X-ray timing missions
D. Barret, M. van der Klis, G. K. Skinner +2
Episodic Random Accretion and the Cosmological Evolution of Supermassive Black Hole Spins
J. -M. Wang, C. Hu, Y. -R. Li +7
RXTE Monitoring of LMC X-3: Recurrent Hard States
J. Wilms, M. A. Nowak, K. Pottschmidt +4
Continued decay in the cyclotron line energy in Hercules X-1
R. Staubert, D. Klochkov, V. Vybornov +2
The broad iron Kalpha line of Cygnus X-1 as seen by XMM-Newton in the EPIC-pn modified timing mode
R. Duro, T. Dauser, J. Wilms +7
Updating the orbital ephemeris of Her X-1; rate of decay and eccentricity of the orbit
R. Staubert, D. Klochkov, J. Wilms
Long-term developments in Her X-1: Correlation between the histories of the 35 day turn-on cycle and the 1.24 sec pulse period
R. Staubert, S. Schandl, D. Klochkov +3
RXTE Discovery of Multiple Cyclotron Lines during the 2004 December Outburst of V0332+53
K. Pottschmidt, I. Kreykenbohm, J. Wilms +6
RXTE Observations of Cygnus X-1: Broad-Band Spectra and High-Resolution Timing
K. Pottschmidt, J. Wilms, M. A. Nowak +3
A double-peaked outburst of A 0535+26 observed with INTEGRAL, RXTE, and Suzaku
I. Caballero, K. Pottschmidt, D. M. Marcu +18
RXTE observations of the 1A 1118-61 in an outburst, and the discovery of a cyclotron line
V. Doroshenko, S. Suchy, A. Santangelo +5
Vertical Structure and Spectrum of Accretion Disks in Active Galactic Nuclei
T. Doerrer, H. Riffert, R. Staubert +1
The multiwavelength variability of 3C 273
S. Soldi, M. Türler, S. Paltani +11