Publications (38)
The Spectral Variability of Cygnus X-1 at MeV Energies
M. L. McConnell, K. Bennett, H. Bloemen +8
Evidence for Gamma-Ray Flares in 3C 279 and PKS 1622-297 at ~10 MeV
W. Collmar, V. Schoenfelder, H. Bloemen +6
Spectral Variability in PKS 0528+134 at Gamma-Ray Energies
M. Boettcher, W. Collmar
COMPTEL Observations of the Blazars 3C 454.3 and CTA 102
S. Zhang, W. Collmar, V. Schoenfelder +5
Constraints on the 3-30 MeV emission of Seyfert galaxies
M. Maisack, K. Mannheim, W. Collmar
The structure and emission model of the relativistic jet in the quasar 3C 279 inferred from radio to high-energy gamma-ray observations in 2008-2010
M. Hayashida, G. M. Madejski, K. Nalewajko +90
COMPTEL Time-Averaged All-Sky Point Source Analysis
W. Collmar, V. Schoenfelder, A. W. Strong +5
LS 5039 - the counterpart of the unidentified MeV source GRO J1823-12
W. Collmar, S. Zhang
Gamma-Ray Spectral Variability of Cygnus X-1
M. L. McConnell, K. Bennett, H. Bloemen +11
An Unidentified Variable Gamma-Ray Source near the Galactic Plane Detected by COMPTEL
S. Zhang, W. Collmar, V. Schonfelder
Multifrequency Observations of the Blazar 3C 279 in January 2006
WEBT Collaboration, W. Collmar, M. Böttcher +13
COMPTEL detection of the high-energy gamma-ray source 2CG 135+01
R. van Dijk, K. Bennett, H. Bloemen +11
Multifrequency Observations of the Gamma-Ray Blazar 3C 279 in Low-State during Integral AO-1
W. Collmar, M. Böttcher, V. Burwitz +19
COMPTEL Observations of the Blazar PKS 1622-297 during a Gamma-Ray High State in 1995
S. Zhang, W. Collmar, V. Schonfelder +6
COMPTEL observations of the quasar PKS 0528+134 during the first 3.5 years of the CGRO mission
W. Collmar, K. Bennett, H. Bloemen +9
INTEGRAL observations of the blazar Mrk 421 in outburst (Results of a multi-wavelength campaign)
G. G. Lichti, E. Bottacini, M. Ajello +15
COMPTEL MeV Observations of the TeV Sources Markarian 421 and Markarian 501
W. Collmar, K. Bennett, H. Bloemen +5
A model for the high-energy emission of Cyg X-1
I. V. Moskalenko, W. Collmar, V. Schoenfelder
A combined model for the X-ray to gamma-ray emission of Cyg X-1
I. V. Moskalenko, W. Collmar, V. Schoenfelder
56Co gamma-rays from SN1998bu: COMPTEL upper limits
S. Plueschke, R. Georgii, R. Diehl +7
The Multifrequency Campaign on 3C 279 in January 2006
W. Collmar, M. Böttcher, T. P. Krichbaum +7
COMPTEL Observations of the Gamma-ray Blazars 3C~454.3 and CTA 102 During the CGRO Mission
S. Zhang, W. Collmar, V. Schonfelder
Day-Scale Variability of 3C 279 and Searches for Correlations in Gamma-Ray, X-Ray, and Optical Bands
R. C. Hartman, M. Villata, T. J. Balonek +36
A pair plasma model for PKS 0208-512
I. V. Moskalenko, W. Collmar
Discovery of luminous pulsed hard X-ray emission from anomalous X-ray pulsars 1RXS J1708-4009, 4U 0142+61 and 1E 2259+586 by INTEGRAL and RXTE
L. Kuiper, W. Hermsen, P. R. den Hartog +1
A High Sensitivity Measurement of the MeV Gamma-Ray Spectrum of Cygnus X-1
M. L. McConnell, J. M. Ryan, W. Collmar +9
INTEGRAL and Multiwavelength Observations of the Blazar Mrk 421 during an Active Phase
G. G. Lichti, E. Bottacini, P. Charlot +9
COMPTEL Observations of 3C 279 during the first 4 Years of the CGRO-Mission
W. Collmar, J. J. Blom, K. Bennett +6
COMPTEL Observations of the Gamma-Ray Blazar PKS 1622-297
S. Zhang, W. Collmar, K. Bennett +7
BeppoSAX Observations of Centaurus A: the Hard Continuum and the Iron Line Feature
P. Grandi, M. Fiocchi, C. G. Perola +7
INTEGRAL survey of the Cassiopeia region in hard X rays
P. R. den Hartog, W. Hermsen, L. Kuiper +3
Multifrequency Observations of the Virgo Blazars 3C 273 and 3C 279 in CGRO Cycle 8
W. Collmar, S. Benlloch, J. E. Grove +15
A large high-energy gamma-ray flare from the blazar 3C 273
W. Collmar, O. Reimer, K. Bennett +8
Investigation of the energy dependence of the orbital light curve in LS 5039
Z. Chang, S. Zhang, L. Ji +5
The Soft Gamma-Ray Spectral Variability of Cygnus X-1
M. L. McConnell, A. A. Zdziarski, K. Bennett +11
Spectral constraints on unidentified EGRET gamma-ray sources from COMPTEL MeV observations
S. Zhang, W. Collmar, W. Hermsen +1
AGN: The High-Energy Status before INTEGRAL
W. Collmar
COMPTEL Observations of AGN at MeV-Energies
W. Collmar, K. Bennett, H. Bloemen +9